基于微电网直流母线电压的正弦扰动MPPT法  

Sinusoidal Disturbance MPPT Method Based on DC Bus Voltage of Microgrid

作　　者：姜茂林 张继勇 Jiang Maolin;Zhang Jiyong(School of Electrical and Energy Power Engineering,Yangzhou University,Yangzhou Jiangsu,225127)

机构地区：[1]扬州大学电气与能源动力工程学院,江苏扬州225127

出　　处：《电子测试》2022年第7期113-115,共3页Electronic Test

摘　　要：微电网中直流母线电压的波动影响着系统的稳定,光伏发电能量过剩造成直流母线电压上升,无法通过下垂控制来维持母线电压稳定,从而影响系统平衡。通过对光伏MPPT的控制,提出一种正弦扰动非线性控制,使得微电网系统在光伏能量过剩时不工作在最大功率点,从而维持直流母线电压的稳定。在psim上搭建仿真模型,验证方法的有效性。The fluctuation of the DC bus voltage in the microgrid affects the stability of the system.The excess photovoltaic power generation energy causes the DC bus voltage to rise,and the droop control cannot be used to maintain the stability of the bus voltage,which affects the system balance.Through the control of the photovoltaic MPPT,a sinusoidal disturbance nonlinear control is proposed,so that the microgrid system does not work at the maximum power point when the photovoltaic energy is excessive,so as to maintain the stability of the DC bus voltage.A simulation model was built on psim to verify the effectiveness of the method.

关 键 词：光伏发电 正弦扰动 直流母线电压 孤岛模式 

分 类 号：TM46[电气工程—电器]