基于电力弹簧的电压及功率因数的光伏并网稳定方法  

Photovoltaic Grid-connected Stabilization Method Based on Voltage and Power Factor of Electric Spring

作　　者：刘勋宇 庞宇琦 张新源 徐啸天 周杨 马刚[1] Liu Xunyu;Pang Yuqi;Zhang Xinyuan;Xu Xiaotian;Zhou Yang;Ma Gang(School of Electrical and Automation Engineering,Nanjing Normal University,Nanjing Jiangsu 210046,China)

机构地区：[1]南京师范大学电气与自动化工程学院,江苏南京210046

出　　处：《电气自动化》2021年第5期55-58,61,共5页Electrical Automation

基　　金：国家自然科学基金项目(51607093)。

摘　　要：电力弹簧(electric spring, ES)的提出,能够有效解决因分布式光伏接入出现的功率波动及功率因数不达标问题。首先分析了ES的拓扑及其功率控制方法,同时提出了一种基于ES的负荷电压及功率因数控制方法,有效地稳定ES电压及功率因数,抑制光伏并网点的功率波动。然后在MATLAB/Simulink仿真平台中搭建分布式光伏并网系统。最后通过算例验证所提基于ES的负荷电压及功率因数控制方法的正确性和有效性。The proposal of electric spring(ES) can effectively solve the problems of power fluctuation and substandard power factor after the distributed photovoltaic connection. Firstly, the topology and power control method of ES were analyzed. At the same time, a load voltage and power factor control method based on ES was proposed, which could effectively stabilize the voltage and power factor of ES and restrain the power fluctuation of photovoltaic grid. Then the distributed photovoltaic grid-connected system was built in the MATLAB/Simulink simulation platform. Finally, an example was used to verify the correctness and effectiveness of the proposed ES-based load voltage and power factor control method.

关 键 词：电力弹簧 负荷电压 功率因数 功率波动 光伏并网 

分 类 号：TM712[电气工程—电力系统及自动化]