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面向恒功率负载的高升压比交错变换器接口直流微电网的大信号稳定性反步控制

Backstepping Control for Large Signal Stability of High Boost Ratio Interleaved Converter Interfaced DC Microgrids With Constant Power Loads

语言:

中文摘要

随着可再生能源渗透率提升及电力电子负载增加,直流微电网的稳定性面临挑战。储能系统(ESS)被广泛应用以提升稳定性,但现有控制方法多仅针对小信号扰动。本文提出一种反步控制策略,旨在解决恒功率负载(CPL)下高升压比交错变换器接口直流微电网的大信号稳定性问题。

English Abstract

With the penetration of renewable generation and tightly regulated power electronic loads, the power quality and stability of modern dc microgrids are greatly challenged. To solve this problem, energy storage systems (ESSs) are widely proposed. Unfortunately, most of the existing control methods for ESSs can only ensure the stability of dc microgrids with small signal disturbances, which may not b...
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SunView 深度解读

该研究针对直流微电网中恒功率负载(CPL)引发的失稳问题,提出的反步控制策略对阳光电源的PowerTitan和PowerStack等储能系统具有重要参考价值。在工商业及电网侧储能应用中,PCS常作为直流微电网的核心接口,面临复杂的负载特性。该控制算法能显著提升PCS在复杂电网环境下的抗扰动能力和大信号稳定性,有助于优化阳光电源储能变流器的控制逻辑,提升系统在弱电网或高比例可再生能源接入场景下的运行可靠性。