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拓扑与电路 DAB 双向DC-DC 三电平 储能变流器PCS ★ 4.0

基于二极管钳位变换器和双有源桥的中压电力弹簧系统协同电压平衡控制

Cooperative Voltage-Balancing Control for Medium-Voltage Electric–Spring System Based on Diode-Clamped Converter and Dual Active Bridges

语言:

中文摘要

本文研究了用于中压(MV)电网的电力弹簧(ES)技术,旨在稳定电网电压与频率。系统采用二极管钳位变换器(NPC)与双有源桥(DAB)级联架构,实现6.6/11/22 kV配电网与800 V直流网的互联。重点探讨了中压侧的协同电压平衡控制策略,以提升系统在需求侧管理中的稳定性和可靠性。

English Abstract

Electric spring (ES) is an emerging smart grid technology for stabilizing the voltage and frequency in a power network. Being fast demand-side-management technology, ES has recently been extended to the medium-voltage (MV) level in an ac–dc power conversion system that connects the distribution line of 6.6/11/22 kV to a dc grid of 800 V. To interface with the MV power grid, a diode-clamped convert...
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SunView 深度解读

该研究涉及的中压级联拓扑(NPC+DAB)与阳光电源的PowerTitan系列大型储能系统及中压并网方案高度相关。DAB变换器是实现储能系统双向功率流动的核心,而二极管钳位技术在提升中压变流器效率和功率密度方面具有重要参考价值。建议研发团队关注该文提出的电压平衡控制策略,以优化PowerTitan在复杂电网环境下的直流侧电压稳定性,并为未来中压直挂式储能系统的技术储备提供理论支撑。