摘要
为了提高电网的电能质量以及光伏并网逆变器的利用率,提出了一种融合有源滤波与无功补偿功能的光伏逆变控制策略。该策略采用法检测谐波和无功电流分量,并通过PR控制器实现交流信号无静差调节。仿真结果表明,融合有源滤波与无功补偿功能的光伏逆变控制策略能根据电网需求,实时补偿电网中的谐波与无功电流,提高了电网的电能质量,节约了投资成本。
In order to improve power quality of power grid and utilization rate of photovoltaic grid-connected inverter, a controlstrategy of photovohaic inverter fusing functions of active filter and reactive power compensation is proposed. The method is used in thestrategy to test harmonic and reactive power compensation components and the floating control of AC signal is realized by PR controller.Simulation results show that the control strategy of photovoltaic inverter fusing functions of active filter and reactive power compensationcan realize the real-time compensation of harmonic and reactive currents of power grid according to the requirement of power grid whichimproves the power quality of power grid and saves investment cost.
出处
《广西电力》
2017年第3期13-16,共4页
Guangxi Electric Power
基金
2015年度高等学校科学研究项目(KY2015YB409)
广西水能资源开发利用与环境影响研究(SL201527)
广西农村水电增效扩容改造效能与安全检测评价体系研究(SL201426)
关键词
光伏逆变器
有源滤波器
无功补偿
控制策略
photovoltaic inverter
active filter
reactive power compensation
control strategy
