摘要
为了改善光伏发电系统对于电网电压的影响,光伏发电系统利用并网逆变器的无功调节能力,通过各种无功控制策略为电网提供无功支撑。为了考察目前提出的各种光伏发电系统无功控制策略的无功支撑能力,以光伏发电系统作为研究对象,对光伏逆变器无功输出能力进行分析。搭建光伏发电系统接入配电网模型,在此基础上利用MATLAB/Simulink仿真软件对各种无功控制方法进行仿真分析,根据仿真结果评估各种光伏发电系统无功控制策略的无功支撑能力,并对光伏发电系统无功控制提出改善意见。
In order to improve the influence of photovoltaic generation system to power grid voltage, the reactive regulation capability of connection inverter is used by photovoltaic generation system, and every kind of reactive control strategy is used to provide reactive support for power grid. In order to observe reactive support capability of every kind of reactive control strategy of photovohaic generation system, the photovoltaic generation system is taken as the study object, and the reactive output capability of photovohaic inverter is analyzed. The photovohaic generation system was built and connected to distribution network model. On that basis, every kind of reactive control method is simulated and analyzed by using MATLAB/Simulink simulation software. The reactive support capability of every kind of reactive control strategy of photovoltaic generation system is evaluated based on simulation results, and improvement suggestions on reactive control of photovoltaic generation system are proposed.
出处
《广西电力》
2015年第6期28-34,共7页
Guangxi Electric Power
关键词
光伏发电系统
无功控制策略
电网电压
光伏逆变器
photovohaic generation system
reactive power control strategy
power grid voltage
photovoltaic inverter
