← 返回

驱动多相电机的级联H桥逆变器故障后最小谐波注入运行策略

Postfault Operation Strategy With Minimum Harmonic Injection for Cascaded H-Bridge Inverters Driving a Multiphase Motor

语言:

中文摘要

本文针对基于级联H桥(CHB)逆变器的多相电机驱动系统,提出了一种故障后运行策略。该策略通过旁路受损的H桥单元,在保证系统持续运行的同时,通过优化控制算法最小化谐波注入,从而降低转矩脉动和损耗,提升了系统在故障工况下的可靠性与运行性能。

English Abstract

Multiphase motor drives based on cascaded H-bridge (CHB) voltage source inverters (VSIs) offer enhanced reliability by accommodating both motor and VSI faults. The VSI faults, the most prevalent type, can be addressed by bypassing damaged H-Bridges. However, operating the VSI in this condition without an appropriate postfault strategy can increase the torque ripple and losses, and reduce the maxim...
S

SunView 深度解读

该研究聚焦于级联H桥(CHB)多电平拓扑的容错控制,这与阳光电源在大型光伏电站及储能系统(如PowerTitan系列)中使用的多电平拓扑具有技术同源性。虽然阳光电源目前的产品多为并网型逆变器而非电机驱动,但其提出的“故障旁路与谐波优化”策略对于提升大型储能变流器(PCS)在极端工况下的可靠性具有重要参考价值。建议研发团队关注该容错控制逻辑,以优化PowerTitan系列在单模块故障时的降额运行能力,提升系统可用性。