轨道车辆变频空调谐波抑制应用及仿真分析

Harmonic Suppression Application and Simulation Analysis of Variable Frequency Air Conditioner for Railway Vehicles

通过分析三相不控整流电路中二极管导通状态得出电流连续和断续的临界条件,以及谐波产生的原因,梳理了当前谐波研究的现状并提出新的谐波抑制方案,最后通过理论分析推导、示例计算、仿真分析及试验验证,确认了谐波抑制方案的可行性,证明了理论分析推导的有效性。

By analyzing the critical conditions of the continuous and intermittent current of the diode in the threephase uncontrolled rectifier circuit,and the cause of the harmonic generation,the current harmonic research status was combed and the new harmonic suppression scheme was put forward. The feasibility of the harmonic suppression scheme was confirmed by theoretical analysis and derivation,example calculation,imitation true analysis and test verification. It proves the validity of the theoretical analysis and derivation.