摘要
针对传统PI控制无法满足风光互补电源协调控制的问题,研究了风光互补电源储能变换器模型预测控制。首先分析了风光互补电源中发电系统的功率输出特性,结合蓄电池荷电状态的限制归纳总结出系统运行的4种工作模式和8种工作状态。然后引入基于模型预测的蓄电池充放电控制方法,可以在不同状态之间切换时实现风力发电系统、光伏发电系统和蓄电池之间的协调控制,从而保证风光互补电源为负荷提供稳定可靠的电能。最后通过仿真验证了该控制方法的可行性。
The traditional PI control cannot satisfy the coordinated control of wind and solar complementary power supply, the model predictive control of energy storage converter in the wind and solar complementa- ry power supply is studied. First of all, by analysing the power generation system and operation characteris- tics of the hybrid power system, four operating modes and eight working conditions are summarized. Then the battery charging and discharging control method based on model predictive control is used, in which the control method can realize the coordinated operation between the wind,photovoltaic and battery switching between different working modes and working state,thus ensuring the wind-solar hybrid power supply to provide stable and reliable power to load. Finally, the simulation results show the effectiveness of the pro- posed control method.
作者
俞容江
胡晨刚
陈忠华
陈攀
高振宇
YU Rong-jiang HU Chen-gang CHEN Zhong-hua CHEN Pan GAO Zhen-yu(Hangzhou Electric Power Design Institute Co. ,Ltd. , Hangzhou 310009, China)
出处
《电力学报》
2017年第4期281-286,343,共7页
Journal of Electric Power
关键词
风光互补电源
储能系统
能量管理策略
模型预测控制
wind-solar hybrid power system
energy storage system
energy management strategy
modelpredictive control
