输入均压结合输出同角度控制策略下ISOS逆变器系统的环路设计

Design of ISOS Inverters Control Loop Under Control Strategy of Input Voltage Sharing Combined With Same Output Angle

输入串联输出串联(input-series and output-series,ISOS)逆变器系统的控制目标是在实现输入均压的同时,控制输出电压的幅值和相位都相等从而实现输出均压。在已有的输入均压结合输出同角度的三环控制策略的基础上,对系统的控制环,即输入均压环和输出电压环之间的解耦关系进行分析,并在此基础上分别对它们进行具体的参数设计,以使系统具有良好的稳态和动态性能。仿真及实验结果验证了环路间的解耦关系及参数设计的合理性与有效性。

The control aim of the input-series and output-series （ISOS） inverters system is to realize input voltage sharing and at the same time to achieve output voltage sharing by controlling the same magnitude and phase of output voltage. The decoupling relationship between input voltage sharing loop and output voltage loop was analyzed about the existed control strategy of input voltage sharing combined with the same output angle,and based on it the detailed parameter design was carried out to make the system have satisfactory static and dynamic characteristic. The simulation and experimental results were presented to verify the decoupling relationship between two control loops and the rationality and effectiveness of the parameter design.