一种基于自适应参数的储能变换器VDM控制方法

The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020) Pub Date : 1900-01-01 DOI:10.1049/icp.2021.1199

P. Wang, J. Zhao, K. Liu

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引用次数: 0

摘要

为了抑制直流微电网系统中功率波动的影响，将虚拟直流电机控制应用于直流变换器中，以提高系统的稳定性。传统的定参数虚拟直流电动机控制不能考虑系统的动态响应。本文分析了虚拟直流电动机的控制原理，建立了一种小信号控制模式。然后，分析了虚转矩和阻尼系数对直流母线电压在功率波动下动态响应的影响。在此基础上，提出了基于自适应参数的虚拟直流电机控制策略，并设计了虚拟转矩和阻尼系数的自适应调整方案。最后，通过不同工况下的对比仿真，验证了所提策略的可行性和优越性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A novel VDM control of energy storage converter based on adaptive parameters

In order to suppress the influence of power fluctuation i n DC micro grid system, virtual DC motor ( control is applied to DC converter for improv in g the stability of the system. However, t he traditional virtual DC motor control with fixed parameters cannot take the dynamic response of the system into account. This paper analyzes the principle of virtual DC motor control and builds a small signal mode l . After that, the influence of virtual torque and damping coefficient on the dynamic response of DC bus voltage under power fluctuation is analyzed. On this basis, the virtual DC motor control strategy based on adaptive parameter is proposed, and the adap tive adjustment scheme of virtual torque and damping coefficient is designed. Finally, the feasibility and superiority of the proposed strategy are verified by c omparative simulation under different operating conditions.

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来源期刊

The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020)

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