直线式移相变压器逆变系统的不对称研究

Study on Asymmetry of Inverter System of Linear Phase Shift Transformer

简要介绍了基于直线式移相变压器的12相多重叠加逆变器的工作原理,从多方面比较了直线式移相变压器与传统移相变压器相比的优点。分析了直线式移相变压器的绕组结构以及造成这种不对称的成因,并用Maxwell进行了仿真分析。仿真结果表明,改善绕组结构可以有效减小谐波,改善变压器性能。

The working principle of 12-phase multi-overlap plus inverters based on linear phase-shifting transformer is briefly introduced.The advantages of linear phase-shifting transformers compared to traditional ones are presented in several aspects.The winding structure of linear phase-shifting transformer and the cause of the asymmetry are analyzed,and the Maxwell simulation of the transformer with the full-pitch winding or the long-pitch winding is introduced respectivly.The simulation results show that improving winding structure can effectively reduce harmonics and improve transformer performance.