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一种用于缓解LCC型高压直流输电系统换相失败的预测控制策略

A Predictive Control Strategy for Mitigation of Commutation Failure in LCC-Based HVDC Systems

语言:

中文摘要

高压直流(HVDC)系统因其大容量、长距离输电及灵活功率控制等优势被广泛应用。然而,基于电网换相换流器(LCC)的HVDC系统存在换相失败的固有缺陷,会导致设备应力增加及输电中断。本文提出了一种预测控制策略,旨在有效缓解换相失败问题,提升系统运行的可靠性与稳定性。

English Abstract

High-voltage direct-current (HVDC) systems are being widely employed in various applications because of their numerous advantages such as bulk power transmission, efficient long-distance transmission, and flexible power-flow control. However, line-commutated-converter-based HVDC systems suffer from commutation failure, which is a major drawback, leading to increased device stress and interruptions...
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SunView 深度解读

虽然阳光电源的核心业务聚焦于光伏逆变器、储能系统及风电变流器(主要基于VSC技术),而非传统的LCC-HVDC输电,但该文献提出的模型预测控制(MPC)策略在提升并网稳定性方面具有重要参考价值。在弱电网环境下,阳光电源的组串式逆变器及PowerTitan储能系统同样面临电压跌落导致的并网故障挑战。建议将该预测控制思路应用于构网型(GFM)逆变器控制算法的优化中,以提升设备在复杂电网故障下的抗扰动能力,增强对弱电网的支撑性能。