摘要
光伏发出的电压较小且不够稳定,不能直接接入到配电网中,需要通过升压型变换器来实现电压的升高和稳定。为此,设计了升压型DC-DC变换器,采用全控型器件绝缘栅双极型晶体管(insulated gate bipolar transistor,IGBT)构成的控制电路,将最大功率点跟踪控制器的输出电压与光伏电池板输出电压进行比较,经过PI控制器调节,进行SPWM调制,从而实现变换器升压和稳压的功能。仿真结果表明,所设计的DC-DC变换器实现了光伏电池的升压和稳压,验证了所提控制方法的有效性和可行性。
The voltage generated by photovoltaic（PV） is small and unstable, and cannot be directly connected to the distribution network. Step-up converter is needed to improve the amplitude and stability of voltage. Therefore, the step-up DC-DC converter adopting the control circuit of the insulated gate bipolar transistor （IGBT） is designed. It compares the output voltage of the maximum power point tracking（MPPT） controller with that of the PV cell panel, and achieves the SPWM modulation through the adjustment of PI controller, so as to realize the function of boosting and stabilizing the voltage. The result of simulation shows that the designed DC-DC converter achieves the boosting and stabilizing of voltage of PV cells, and verifies the effectiveness and feasibility of the proposed control method.
作者
黄飞
王帅
吴晨立
HUANG Fei;WANG Shuai;WU Chenli(Power Engineering College,Nanjing Institute of Technology,Nanjing 211167,China;State Grid Zhejiang Electric Power Co.,Ltd.,Huzhou 310007,China)
出处
《黑龙江电力》
CAS
2018年第5期398-404,共7页
Heilongjiang Electric Power
