无功功率控制在光伏发电并网中的应用  

Application of Reactive Power Control in Grid-Connected Photovoltaic Power Generation

作　　者：王卓[1] 邹俊 谭建 WANG Zhuo;ZOU Jun;TAN Jian(China Machinery International Engineering Design&Research Institute Co.,Ltd.,Changsha 410000,China)

机构地区：[1]中机国际工程设计研究院有限责任公司,湖南长沙410000

出　　处：《通信电源技术》2024年第1期44-46,共3页Telecom Power Technology

摘　　要：无功功率控制可以应用于光伏发电并网,是确保电网稳定运行的关键措施。文章提出一种改进电压-无功(Voltage-Reactive Power,V-Q)控制算法用于控制光伏发电并网,并讨论了控制算法的实现方式。该方法能够有效提高光伏发电并网系统的响应灵敏度,防止系统出现振荡和过调节问题,且能够降低谐波水平。以西北某光伏发电场为例,深入分析了应用自适应比例-积分-微分(Proportion-Integration-Differentiation,PID)控制器的改进V-Q控制算法对系统稳定性的影响。研究结果表明,该算法能够确保光伏发电系统的稳定运行,为其他光伏发电场提供参考和借鉴。Reactive power control can be applied to grid-connected photovoltaic power generation,which is a key measure to ensure the stable operation of power grid.In this paper,an improved Voltage-Reactive Power(V-Q)control algorithm is proposed to control the grid connection of photovoltaic power generation,and the implementation of the control algorithm is discussed.This method can effectively improve the response sensitivity of photovoltaic power generation grid-connected system,prevent the system from oscillation and over-regulation,and reduce the harmonic level.Taking a photovoltaic power plant in northwest China as an example,this paper deeply analyzes the influence of the improved V-Q control algorithm with adaptive proportion-integration-differentiation(PID)controller on the stability of the system.The research results show that the algorithm can ensure the stable operation of photovoltaic power generation system and provide reference for other photovoltaic power plants.

关 键 词：光伏发电并网 无功功率控制 电压-无功(V-Q)控制算法 控制器选择 

分 类 号：TM615[电气工程—电力系统及自动化]