摘要
储能变流器(PCS)是储能系统的核心部件,主要运行模式有并网和离网两种。本文重点针对储能PCS在离网条件下所采用的定电压/频率控制策略进行研究,从储能PCS的拓扑结构入手,建立其数学模型,并制定相应的控制策略。根据控制器选择的不同,本文分别介绍了基于PI控制器以及准PR控制器的控制策略,画出了详细的控制框图。最后基于Matlab仿真模型,制定了两种不同运行工况,针对这两种工况对不同控制器条件下PCS的外输出特性进行对比分析,并得出相应的结论,为工程实践提供相应的理论支撑和指导经验。
Energy storage converter（ Power Convert System,PCS） is the core component of energy storage system,and the main operating mode can be divided into grid and off-grid modes. A research is conducted in view of constant voltage / frequency control strategy adopted by the energy storage inverter under the condition of the off-grid.The research is started from the topology structure of energy storage inverter,and its mathematical model is set up and formulate the corresponding control strategy. Depending on the choosed controller,this paper introduces the control strategy based on PI controller and quasi PR controller respectively,and draws the detailed control diagram.Based on the Matlab simulation model,making two different operation conditions,the inverter＇s output characteristics are analyzed under the condition of different controllers for the two different operation conditions. The corresponding conclusions are drawn which can provide the theoretical support and guidance experience for the engineering practice.
出处
《电工电能新技术》
CSCD
北大核心
2016年第2期54-61,共8页
Advanced Technology of Electrical Engineering and Energy
基金
国家高技术研究发展计划(863计划)项目(2014AA052004)
国网公司科技项目(DG71-15-039)
关键词
储能PCS
定电压/频率控制
PI控制器
准PR控制器
外输出特性
energy storage converter
constant voltage / frequency control
PI controller
quasi PR controller
out put characteristic
