比较缓解电网电压波动和频率变化对变速驱动器运行影响的方法

Q3 Engineering

WSEAS Transactions on Power Systems Pub Date : 2024-03-01 DOI:10.37394/232016.2024.19.2

Mohamed Ibrahim, M. Nashed, M. Eskander

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引用次数: 0

摘要

本文研究了非对称电网电压骤降对滑差功率恢复驱动器性能的影响，并探讨了减轻其影响的两种策略。第一种策略包括与转子电路相连的三相并联 RL 阻抗。第二种策略包括与转子电路相连的三相 LCL 滤波器。对 PI 控制器进行了调整，以测试恒速驱动。此外，还使用同样的两种保护策略研究了电网频率下降对驱动器性能的影响。提议的系统使用 Matlab/Simulink 建模，并对仿真结果进行了比较。将未采用任何保护方案的驱动器性能与采用两种建议策略的驱动器性能进行了比较。比较结果包括定子电压和电流、转子电压和电流、直流链路电压和电流、电动扭矩和转子速度。

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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Comparing Methods to Mitigate the Effect of Grid Voltage Sag and Frequency Variation on the Operation of Variable Speed Drives

In this paper, the effect of unsymmetrical grid voltage sag on the performance of a slip power recovery drive is studied, and two strategies to mitigate its effects are investigated. The first strategy consists of three phase parallel RL impedance connected to the rotor circuit. The second strategy consists of three phase LCL filter connected to the rotor circuit. A PI controller is tuned to test the drive at constant speed. Also, the effect of grid frequency drop on the drive performance is investigated with the same two protection strategies. The proposed systems are modeled with Matlab/Simulink and the simulation results are compared. The drive performance without any protection schemes are compared with its performance with the two proposed strategies. The compared results include the stator voltage and current, the rotor voltage and current, the DC link voltage and current, the electric torque, and the rotor speed.

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来源期刊

WSEAS Transactions on Power Systems Engineering-Industrial and Manufacturing Engineering

CiteScore

1.10

自引率

0.00%

发文量

期刊介绍： WSEAS Transactions on Power Systems publishes original research papers relating to electric power and energy. We aim to bring important work to a wide international audience and therefore only publish papers of exceptional scientific value that advance our understanding of these particular areas. The research presented must transcend the limits of case studies, while both experimental and theoretical studies are accepted. It is a multi-disciplinary journal and therefore its content mirrors the diverse interests and approaches of scholars involved with generation, transmission & distribution planning, alternative energy systems, power market, switching and related areas. We also welcome scholarly contributions from officials with government agencies, international agencies, and non-governmental organizations.