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一种用于直流微电网中恒功率负载多电平升压变换器的新型非线性稳定器

A Novel Assorted Nonlinear Stabilizer for DC–DC Multilevel Boost Converter With Constant Power Load in DC Microgrid

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中文摘要

多电平升压变换器(MBC)因高增益和简单结构在直流微电网中广泛应用。然而,恒功率负载(CPL)的负阻抗特性会降低系统稳定性。本文提出一种新型非线性稳定器,旨在解决CPL引起的系统不稳定性问题,确保直流微电网的有效功率流与系统稳定性。

English Abstract

The multilevel boost converter (MBC) has been widely adopted in the dc microgrid systems due to its high voltage gain and simple structure. In recent years, the power electronic loads, which usually behave as constant power loads (CPLs), are penetrating in microgrids. The incremental negative impedance of CPLs degrades the stability of microgrid systems. To ensure effective power flow and guarante...
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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)导致的系统振荡问题,提出了非线性控制策略,这对阳光电源的储能系统(如PowerTitan、PowerStack)及直流耦合光储系统具有重要参考价值。在直流微电网应用场景中,储能变流器(PCS)常作为主电源或负载接口,面临CPL带来的负阻抗稳定性挑战。该非线性稳定器技术可优化PCS的控制算法,提升系统在复杂负载下的动态响应能力和稳定性,增强阳光电源在工商业及电网侧储能项目中的系统集成竞争力。