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直流微电网电力变换器在线稳定性监测方法分析

Analysis of an Online Stability Monitoring Approach for DC Microgrid Power Converters

语言:

中文摘要

本文提出了一种评估和监测直流微电网电力变换器稳定裕度的在线方法。该技术基于Middlebrook环路增益测量原理,并针对数字控制变换器进行了适配。通过在变换器的特定数字控制回路中注入扰动,实现对系统稳定性的实时监测。

English Abstract

An online approach to evaluate and monitor the stability margins of dc microgrid power converters is presented in this paper. The discussed online stability monitoring technique is based on the Middlebrook's loop-gain measurement technique, adapted to the digitally controlled power converters. In this approach, a perturbation is injected into a specific digital control loop of the converter and af...
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SunView 深度解读

该研究提出的在线稳定性监测技术对阳光电源的储能系统(如PowerTitan、PowerStack)及直流微电网解决方案具有重要价值。在复杂的直流微电网或多机并联场景下,系统阻抗匹配导致的振荡是行业痛点。通过集成该在线监测算法,阳光电源的PCS产品可实现对系统稳定裕度的实时感知,从而主动调整控制参数,提升系统在弱电网或复杂负载下的运行可靠性。建议将此技术应用于iSolarCloud智能运维平台,实现对电站侧变换器稳定性的远程预警,降低运维成本。