介绍一种经过优化设计的逆变电源,适用于现代农业可再生能源供电系统。针对经典PI调节无法解决跟踪静差的问题,提出使用模糊准PR调节用于控制环对逆变电源进行闭环调节,在实现无静差跟踪的同时由模糊算法整定参数,增加系统抗干扰和模型不确定性的能力。采用SVPWM控制算法进行调制,提高直流侧电压利用率。仿真和实验结果表明,使用该优化设计逆变电源后供电系统运行稳定,跟踪误差问题得到解决。
This paper describes a optimized design of power inverter, suitable for modern agriculture renewable energy power supply system. For classic PI regulator can not solve the problem of poor tracking of static, fuzzy quasi-PR adjustment is presented on inverter power control loop for closed-loop regulation. It aeheives no static error tracking, while the fuzzy algorithm tuning parameters, increasing the capacity of the system interference and model uncertainty. Using SVPWM control algorithm modulates to improve the DC voltage utilization. Simulation and experimental results show that the optimal design using inverter, the power system is stable, the tracking error problem is resolved.