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基于信息物理系统的工业园区用能控制策略研究 被引量:2
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作者 张然 李建克 +1 位作者 张建洲 桑圣泽 《科技风》 2019年第31期85-85,共1页
构建工业园区用能控制系统,从能源的生产、传输、转换、存储、消费等环节出发,实现供能侧多能互补优化、源网荷储协调控制,提升工业园区整体用能管理水平,开展能源友好互动,降低工业园区综合能耗,增加企业经济效益,并为用户开展智慧用... 构建工业园区用能控制系统,从能源的生产、传输、转换、存储、消费等环节出发,实现供能侧多能互补优化、源网荷储协调控制,提升工业园区整体用能管理水平,开展能源友好互动,降低工业园区综合能耗,增加企业经济效益,并为用户开展智慧用能建设提供技术支撑。 展开更多
关键词 工业园区 信息物理系统 综合能源 用能控制
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建筑电气设备用能控制研究
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作者 李士全 《中国科技期刊数据库 工业A》 2022年第3期106-109,共4页
随着社会的发展,建筑电气设备与建筑智能化也被广泛的应用起来,所以,这些设备的运行能力也在逐步的提升。为了适应智能建筑规模的扩大,就要把握好工程项目的管理质量关。那么我们需要做的首先就是要保证电气设备不论是节能方面还是质量... 随着社会的发展,建筑电气设备与建筑智能化也被广泛的应用起来,所以,这些设备的运行能力也在逐步的提升。为了适应智能建筑规模的扩大,就要把握好工程项目的管理质量关。那么我们需要做的首先就是要保证电气设备不论是节能方面还是质量监控方面,都得让其稳定的运行。其次,对于建筑供电设备,也要保证能正常的运行。做到这两方面就可以在保证建筑物运行安全的前提下,逐渐提高建筑项目的经济效益。基于此,对建筑电气设备用能控制进行研究,以供参考。 展开更多
关键词 建筑电气 建筑智能化技术 用能控制
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Genetic algorithm tuned PI controller on PMSM simplified vector control 被引量:11
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作者 WIBOWO Wahyu Kunto JEONG Seok-kwon 《Journal of Central South University》 SCIE EI CAS 2013年第11期3042-3048,共7页
A simple control structure in servo system is occasionally needed for simple industrial application which precise and high control performance is not exessively important so that the cost production can be reduced eff... A simple control structure in servo system is occasionally needed for simple industrial application which precise and high control performance is not exessively important so that the cost production can be reduced efficiently. Simplified vector control, which has simple control structure, is utilized as the permanent magnet synchronous motor control algorithm and genetic algorithm is used to tune three PI controllers used in simplified vector control. The control performance is obtained from simulation and investigated to verify the feasibility of the algorithm to be applied in the real application. Simulation results show that the speed and torque responses of the system in both continuous time and discrete time can achieve good performances. Furthermore, simplified vector control combined with genetic algorithm has a similar perfofmance with conventional field oriented control algorithm and possible to be realized into the real simple application in the future. 展开更多
关键词 simplified vector control conventional field oriented control permanent magnet synchronous motor genetic algorithm PI controller
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On Generality of the Data Plane and Scalability of the Control Plane in Software-Defined Networking 被引量:2
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作者 ZUO Qingyun CHEN Ming DING Ke XU Bo 《China Communications》 SCIE CSCD 2014年第2期55-64,共10页
The control and data planes are decoupled in software-defined networking(SDN),which enables both planes to evolve independently,and brings about many advantages such as high flexibility,programmability,and rapid imple... The control and data planes are decoupled in software-defined networking(SDN),which enables both planes to evolve independently,and brings about many advantages such as high flexibility,programmability,and rapid implementation of new network protocols.However,in order to improve the scalability of the control plane at present,some control functionalities are added to the data plane,which is probably to impact on the generality of the data plane.The key challenge of adding control functionalities to the data plane is to strike a careful balance between the generality of the data plane and the scalability of the control plane.We propose some basic principles that both control and data planes should comply with,based on the evolutionary trend of SDN.Moreover,we take two approaches for reference according to the principles,viewed from the control messages in OpenFlow-based SDN.Our evaluations demonstrate that the approaches can maintain the generality of the data plane and improve the scalability of the control plane. 展开更多
关键词 OpenFlow SDN architecture control functionalities control message
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Developing of the EV charging and parking shed of BIPV
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作者 Wu Shaobo Wei Chuanchuan Yu Jiang 《Engineering Sciences》 EI 2013年第5期91-96,共6页
Building-integrated photovoltaic(BIPV) is an important application way of solar photovoltaic power. The electric vehicle(EV) charging and parking shed of BIPV is the regeneration energy intellectual integration demons... Building-integrated photovoltaic(BIPV) is an important application way of solar photovoltaic power. The electric vehicle(EV) charging and parking shed of BIPV is the regeneration energy intellectual integration demonstration application system collection of photovoltaic(PV) grid power,PV off- grid power,EV charging and parking shed,and any part of the functions and their combination will be engaged in practical application on demand. The paper describes the PV shed system structure and design in detail with the present of its actual photos. The shed is 50 m long and 5.5 m wide and capable of parking 18 cars. Under the control of system intellectual controller,the power produced by PV from sunlight will charge the parking EV car prior to charging the storage battery,charging the storage battery prior to grid power,grid power at last,and charge the EV by utility grid when it is a cloudy or rainy day. 展开更多
关键词 BIPV PV generator EV charging integrated parking shed design intelligent control
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Iterative Learning Model Predictive Control for a Class of Continuous/Batch Processes 被引量:9
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作者 周猛飞 王树青 +1 位作者 金晓明 张泉灵 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2009年第6期976-982,共7页
An iterative learning model predictive control (ILMPC) technique is applied to a class of continuous/batch processes. Such processes are characterized by the operations of batch processes generating periodic strong ... An iterative learning model predictive control (ILMPC) technique is applied to a class of continuous/batch processes. Such processes are characterized by the operations of batch processes generating periodic strong disturbances to the continuous processes and traditional regulatory controllers are unable to eliminate these periodic disturbances. ILMPC integrates the feature of iterative learning control (ILC) handling repetitive signal and the flexibility of model predictive control (MPC). By on-line monitoring the operation status of batch processes, an event-driven iterative learning algorithm for batch repetitive disturbances is initiated and the soft constraints are adjusted timely as the feasible region is away from the desired operating zone. The results of an industrial application show that the proposed ILMPC method is effective for a class of continuous/batch processes. 展开更多
关键词 continuous/batch process model predictive control event monitoring iterative learning soft constraint
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Design of Weigh Feeder Control System for Energy Saving Using Performance-Adaptive Method
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作者 Takao Sato Shohei Kitano +2 位作者 Toru Yamamoto Nozomu Araki Yasuo Konishi 《Journal of Mechanics Engineering and Automation》 2012年第1期1-8,共8页
This paper discusses a design method for the control system of a weigh feeder that supplies powder and granular material at a constant rate. Most weigh feeders employed in industry are controlled by proportional and i... This paper discusses a design method for the control system of a weigh feeder that supplies powder and granular material at a constant rate. Most weigh feeders employed in industry are controlled by proportional and integral (PI) compensation, and the control performance is decided by the selection of parameters. To attain advanced control performance by PI control, the PI parameters are designed on the basis of generalized minimum variance control (GMVC). In this study, to achieve user-specified control performance by GMVC-based PI control, the design parameters of GMVC are automatically adjusted using a performance-adaptive method. The control performance discussed in this study consists of the variance of the control error and that of the difference in the control input. In a conventional performance-adaptive method, the variance of the control error is reduced. In this study, to reduce energy consumption and to achieve user-specified control performance, the variance of the difference in the control input is specified and the design parameter is determined. To demonstrate its effectiveness, the proposed method is applied to an actual weigh feeder. 展开更多
关键词 Weigh feeder performance-adaptive PI (proportional and integral) control generalized minimum variance control energy saving.
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A Simple Scheme for Realizing a Multiqubit Controlled-Phase Gate Through a Resonant Interaction of Three-Level Atoms with a Single-Mode Cavity
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作者 张登玉 唐世清 +3 位作者 谢利军 詹孝贵 游开明 高峰 《Communications in Theoretical Physics》 SCIE CAS CSCD 2010年第3期481-485,共5页
A very simpJe theoretical scheme is proposed to implement two-and three-qubit controlled-phase gates firstly only using a single resonant interaction between ladder-type three-level atoms and the single-mode cavity. I... A very simpJe theoretical scheme is proposed to implement two-and three-qubit controlled-phase gates firstly only using a single resonant interaction between ladder-type three-level atoms and the single-mode cavity. In the presented protocol, the quantum information is encoded on the stable ground states of the atoms (as the controlling qubits) and the zero- and one-photon Fock states of cavity-field (as the target qubit). Under the influence of the atomic spontaneous emission, the decay of the cavity-mode, and deviation of the coupling strength, the three-qubit controlled- phase gate may have a comparatively high fidelity. The experimental feasibility of controlled-phase gate and the ease that is extended to realize N-qubit controlled-phase gate are also discussed. 展开更多
关键词 controlled-phase gate three-level atom QED FIDELITY
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Study on load performance of electric motor system used in hybrid electric vehicle
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作者 李雯 Zhang Chengning +1 位作者 Wang Zhifu Gao Lei 《High Technology Letters》 EI CAS 2010年第1期63-66,共4页
The performance of the power assist, global optimization solved by dynamic programming (DP) method, Chery and Insight control strategies are analyzed using the mild parallel hybrid electric vehicle (PHEV) model ba... The performance of the power assist, global optimization solved by dynamic programming (DP) method, Chery and Insight control strategies are analyzed using the mild parallel hybrid electric vehicle (PHEV) model based on Insight structure. The influence of the four control strategies to the load power of the electric motor system used on parallel hybrid electric vehicle is studied. It is found that 80 percent of the motor load power points are under 1/5 of the electric peak power. The motor load power of the power assist control strategy is distributed in the widest range during generating operation, and the motor load power of the global optimization control strategy has the smallest one. 展开更多
关键词 parallel hybrid electric vehicle (PHEV) management strategy motor load power
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Selective Atom-Cavity Interaction Scheme for Quantum Controlled-NOT Gate Using Four-Level Atoms in Cavity QED System 被引量:1
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作者 TANG Shi-Qing ZHANG Deng-Yu +2 位作者 XIE Li-Jun ZHAN Xiao-Gui GAO Feng 《Communications in Theoretical Physics》 SCIE CAS CSCD 2009年第2期247-251,共5页
We propose a scheme for realization a quantum Controlled-NOT gate operation using two four-level atoms through a selective atom cavity interaction in cavity quantum electrodynamics system. In our protocol, the quantum... We propose a scheme for realization a quantum Controlled-NOT gate operation using two four-level atoms through a selective atom cavity interaction in cavity quantum electrodynamics system. In our protocol, the quantum information is encoded on the stable ground states of the two atoms. During the interaction between atoms and single-mode vacuum cavity-field, the atomic spontaneous emission is negligible as the large atom-cavity detuning effectively suppresses the spontaneous decay of the atoms. The influences of the dissipation and the deviation of interaction time on fidelity and corresponding success probability of the quantum Controlled-NOT gate and the experimental feasibility of our proposal are also discussed. 展开更多
关键词 controlled-NOT gate four-level atom cavity QED FIDELITY
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Static Var Compensator to Increase the Availability of a Colombian Oil Field
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作者 Rolf Gruenbaum Jon Rasmussen +1 位作者 Femando Bonilla Mauricio Canal 《Journal of Energy and Power Engineering》 2012年第6期978-983,共6页
The paper describes the application of a static var compensator to improve the electrical system of the ACN (Cravo Norte Association) oil field in Colombia. The paper summarizes the application, including system asp... The paper describes the application of a static var compensator to improve the electrical system of the ACN (Cravo Norte Association) oil field in Colombia. The paper summarizes the application, including system aspects that require special control functions in the SVC (static var compensator) regulator. Several important benefits for the system operation are demonstrated, such as increased power transmission import over an existing 230 kV network, dynamic bus voltage stabilization for various load conditions, including system outages and load rejection, and reduction of variable speed drive shutdowns by up to 95%. Some relevant design features of the SVC are treated, as well. 展开更多
关键词 Dynamic voltage control reactive power negative phase sequence control RTDS SVC thyristor controlled reactor.
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Numerical Simulation of Aspect Ratio Effect on Turbulent Annular Flows
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作者 M. Raddaoui 《Journal of Energy and Power Engineering》 2010年第12期17-23,共7页
The control of energy in various industrial applications passes by the comprehension of the phenomena of transfers especially in complex flows. The structure of the turbulent flow in the cavities in rotation depends o... The control of energy in various industrial applications passes by the comprehension of the phenomena of transfers especially in complex flows. The structure of the turbulent flow in the cavities in rotation depends on several parameters like the Reynolds number of rotation Ra and the aspect ratio of the cavity. The purpose of this work is to simulate numerically the effect of the aspect ratio on the level of turbulence in the annular steady flow with an incompressible fluid for three different configurations. In the first, the interior cylinder is fixed and the external is moving. The second configuration is the reverse. The third is the contra-rotating cylinders. For all these configurations, we varied the aspect ratio from 0.5 to 2.5. The numerical tool is based on a statistical model in a point using the closing of the second order of the transport equations of the Reynolds stresses (Reynolds Stress Model: RSM). The results of our numerical simulation show that this geometrical parameter can be an interesting factor to increase the level of turbulence that is often required in several industrial applications where the economy and the control of energy are always required. 展开更多
关键词 ENERGY turbulent flow Reynolds number of rotation aspect ratio of the cavity to simulate annular flow Reynolds Stress Model.
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Robotic Path Learning with Graphical User Interface
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作者 George Zhang Jianjun Wang Jingguo Ge 《Journal of Mechanics Engineering and Automation》 2014年第4期261-268,共8页
This paper describes an automated path generation method for industrial robots. Based on force control, a robotic subsystem has been developed for path automatic generation or path learning. Using a dummy tool and rou... This paper describes an automated path generation method for industrial robots. Based on force control, a robotic subsystem has been developed for path automatic generation or path learning. Using a dummy tool and roughly taught guiding points around a part contour, the robot moves in position and force controlled hybrid mode, following the order of the guiding points and with contact force direction and value predefined. During the motion, robot actual position is recorded by the robot controller. After the motion, the recorded position data is used to generate a robot path program automatically. Robot lead-through may be used in the guiding point teaching. Furthermore, a GUI (graphical user interface) is developed on the teach pedant to guide through the guiding point creation and teaching, path learning, program verification and execution. The development has been incorporated into a robotic machining product option. Combination of the robot path learning function and GUI enhances the interaction between the robot and operator and drastically increases the level of robotic ease-of-use. 展开更多
关键词 ROBOT force control path learning user interface.
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Null Controllability of Some Degenerate Wave Equations 被引量:3
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作者 ZHANG Muming GAO Hang 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2017年第5期1027-1041,共15页
This paper is devoted to a study of the null controllability problems for one-dimensional linear degenerate wave equations through a boundary controller. First, the well-posedness of linear degenerate wave equations i... This paper is devoted to a study of the null controllability problems for one-dimensional linear degenerate wave equations through a boundary controller. First, the well-posedness of linear degenerate wave equations is discussed. Then the null controllability of some degenerate wave equations is established, when a control acts on the non-degenerate boundary. Different from the known controllability results in the case that a control acts on the degenerate boundary, any initial value in state space is controllable in this case. Also, an explicit expression for the controllability time is given. Furthermore, a counterexample on the controllability is given for some other degenerate wave equations. 展开更多
关键词 CONTROLLABILITY degenerate wave equation Fourier expansion observability.
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G protein-coupled receptors in energy homeostasis 被引量:1
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作者 WANG Jue XIAO RuiPing 《Science China(Life Sciences)》 SCIE CAS 2014年第7期672-680,共9页
G-protein coupled receptors(GPCRs)compromise the largest membrane protein superfamily which play vital roles in physiological and pathophysiological processes including energy homeostasis.Moreover,they also represent ... G-protein coupled receptors(GPCRs)compromise the largest membrane protein superfamily which play vital roles in physiological and pathophysiological processes including energy homeostasis.Moreover,they also represent the up-to-date most successful drug target.The gut hormone GPCRs,such as glucagon receptor and GLP-1 receptor,have been intensively studied for their roles in metabolism and respective drugs have developed for the treatment of metabolic diseases such as type 2 diabetes(T2D).Along with the advances of biomedical research,more GPCRs have been found to play important roles in the regulation of energy homeostasis from nutrient sensing,appetite control to glucose and fatty acid metabolism with various mechanisms.The investigation of their biological functions will not only improve our understanding of how our body keeps the balance of energy intake and expenditure,but also highlight the possible drug targets for the treatment of metabolic diseases.The present review summarizes GPCRs involved in the energy control with special emphasis on their pathophysiological roles in metabolic diseases and hopefully triggers more intensive and systematic investigations in the field so that a comprehensive network control of energy homeostasis will be revealed,and better drugs will be developed in the foreseeable future. 展开更多
关键词 G-protein coupled receptor energy homeostasis METABOLISM
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PROPERTIES OF STORAGE FUNCTIONS AND APPLICATIONS TO NONLINEAR STOCHASTIC H∞ CONTROL
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作者 Qixia ZHANG Weihai ZHANG 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2011年第5期850-861,共12页
This paper discusses the properties of the storage functions for a class of nonlinear stochastic systems. Some necessary and sufficient conditions for a function to be a storage function are derived. As applications, ... This paper discusses the properties of the storage functions for a class of nonlinear stochastic systems. Some necessary and sufficient conditions for a function to be a storage function are derived. As applications, the finite and infinite horizon nonlinear stochastic H∞ controls for systems with state, control, and external disturbance dependent noise are investigated, which generalize the previous results. 展开更多
关键词 Halmilton-Jacobi inequality H∞ control partial differential equation storage function viscosity solution.
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Capacity of soil loss control in the Loess Plateau based on soil erosion control degree 被引量:16
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作者 高海东 李占斌 +5 位作者 贾莲莲 李鹏 徐国策 任宗萍 庞国伟 赵宾华 《Journal of Geographical Sciences》 SCIE CSCD 2016年第4期457-472,共16页
The capacity of soil and water conservation measures, defined as the maximum quantity of suitable soil and water conservation measures contained in a region, were determined for the Loess Plateau based on zones suitab... The capacity of soil and water conservation measures, defined as the maximum quantity of suitable soil and water conservation measures contained in a region, were determined for the Loess Plateau based on zones suitable for establishing terraced fields, forestland and grassland with the support of geographic information system(GIS) software. The minimum possible soil erosion modulus and actual soil erosion modulus in 2010 were calculated using the revised universal soil loss equation(RUSLE), and the ratio of the minimum possible soil erosion modulus under the capacity of soil and water conservation measures to the actual soil erosion modulus was defined as the soil erosion control degree. The control potential of soil erosion and water loss in the Loess Plateau was studied using this concept. Results showed that the actual soil erosion modulus was 3355 t·km^(–2)·a^(–1), the minimum possible soil erosion modulus was 1921 t·km^(–2)·a^(–1), and the soil erosion control degree was 0.57(medium level) in the Loess Plateau in 2010. In terms of zoning, the control degree was relatively high in the river valley-plain area, soil-rocky mountainous area, and windy-sandy area, but relatively low in the soil-rocky hilly-forested area, hilly-gully area and plateau-gully area. The rate of erosion areas with a soil erosion modulus of less than 1000 t·km^(–2)·a^(–1) increased from 50.48% to 57.71%, forest and grass coverage rose from 56.74% to 69.15%, rate of terraced fields increased from 4.36% to 19.03%, and per capita grain available rose from 418 kg·a^(–1) to 459 kg·a^(–1) under the capacity of soil and water conservation measures compared with actual conditions. These research results are of some guiding significance for soil and water loss control in the Loess Plateau. 展开更多
关键词 Loess Plateau soil erosion control degree control potential of soil erosion and water loss RUSLE
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Application of piezoelectric fiber composite actuator to aircraft wing for aerodynamic performance improvement 被引量:2
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作者 LI Min YUAN JunXian +1 位作者 GUAN De CHEN WeiMin 《Science China(Technological Sciences)》 SCIE EI CAS 2011年第2期395-402,共8页
The application of actuator made of piezoelectric material,particularly the advanced piezoelectric fiber composite due to the rapid development of smart materials and structures and active control technology in aviati... The application of actuator made of piezoelectric material,particularly the advanced piezoelectric fiber composite due to the rapid development of smart materials and structures and active control technology in aviation and aerospace industry,to aircraft for performance enhancements such as flight control,aerodynamic force optimization,structure weight reduction,and overall aircraft design represents a new challenge to researches.It is considered as one of the key technologies for developing future flight vehicle.An approach with virtual control surface instead of conventional control surface to control aerodynamic force distribution and flight performance by use of piezoelectric fiber composite actuators distributed on wing surface is presented here.Particularly,the design and implementation of increasing lift force,providing roll maneuver,decreasing induced drag and wing root moment in different flight environments by the same structure control platform are studied.The control effect and sensitivity are examined quantitatively.Generally speaking,better control effect can be obtained by making better use of aeroelastic character to enlarge the actuation strain produced by piezoelectric material. 展开更多
关键词 piezoelectric actuator piezoelectric fiber composite shape control aerodynamic characteristics morphing wing
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Robust Intelligent Control Design for Marine Diesel Engine 被引量:1
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作者 华海德 马宁 +1 位作者 马捷 朱星宇 《Journal of Shanghai Jiaotong university(Science)》 EI 2013年第6期660-666,共7页
This work deals with the nonlinear control of a marine diesel engine by use of a robust intelligent control strategy based on cerebellar model articulation controller (CMAC). A mathematical model of diesel engine pr... This work deals with the nonlinear control of a marine diesel engine by use of a robust intelligent control strategy based on cerebellar model articulation controller (CMAC). A mathematical model of diesel engine propulsion system is presented. In order to increase the accuracy of dynamical speed, the mathematical model of engagement process based on the law of energy conservation is proposed. Then, a robust cerebellar model articulation controller is proposed for uncertain nonlinear systems. The concept of active disturbance rejection control (ADRC) is adopted so that the proposed controller has more robustness against uncertainties. Finally, the proposed controller is applied to engine speed control system. Both the model of the diesel engine propulsion system and of the control law are validated by a virtual detailed simulation environment. The prediction capability of the model and the control efficiency are clearly shown. 展开更多
关键词 diesel engine cerebellar model articulation controller (CMAC) active disturbance rejection control (ADRC) robust control
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ZnO nanorods:morphology control, optical properties, and nanodevice applications
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作者 ZHOU WeiYa ZHANG XiaoXian +2 位作者 ZHAO Duan GAO Min XIE SiShen 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2013年第12期2243-2265,共23页
Research interest in ZnO nanostructures derives from their excellent luminescent properties and availability of low cost fabricating and processing,which hold promise for the development of electronic and optoelectron... Research interest in ZnO nanostructures derives from their excellent luminescent properties and availability of low cost fabricating and processing,which hold promise for the development of electronic and optoelectronic nanodevices.In this review,we focus on the progress in synthesis,properties and nanodevices of ZnO nanorod(NR)arrays and nanotetrapods(NTPs).Recent work done by the authors are also presented.After a brief introduction to the controlled fabrication methods for the highly-ordered ZnO NR arrays and NTPs,we present some aspects of the fundamental properties,especially optical performance,of ZnO NRs/NTPs.Then,we provide an overview of the applications to functional nanodevices based on individual NR and NTP of ZnO.It is demonstrated that different morphologies of ZnO nanostructures have salient effects on their properties and applications.Although much progress has been achieved in the fundamental and applied investigations of ZnO NRs/NTPs over the past decade,many obstacles still remain,hampering further development in this field.Finally,some longstanding problems that warrant further investigation are addressed. 展开更多
关键词 ZnO NANOSTRUCTURES controlled growth optical property NANODEVICES
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