新型组合式Sepic逆变器双闭环控制研究

摘要

For the photovoltaic grid-connected inverters applicable to the solar photovoltaic grid-connected power generation, a voltage-current double-loop control strategy was proposed, and based on it, a system for double-loop control of combined Sepic inverters was designed.A simulation model of the system was constructed by using the Matlab/Simulink to conduce the system's steady-state simulation and dynamic simulation to verify its feasibility and effectiveness.The simulation results show the system's good dynamic performance and steady performance.%针对适用于太阳能并网发电系统的光伏并网逆变器,提出了一种电压电流双闭环控制策略,并据此建立了新型组合式Sepic逆变器的双闭环控制系统.利用Matlab/Simulink模仿工具建立了该控制系统的仿真模型,对该系统进行了稳态仿真和动态仿真,以验证此系统的可行性和有效性.仿真实验结果表明,这种新型组合式Sepic逆变器双闭环控制具有良好的动态和稳态性能.