基于改进无转速传感器并网DFIG的风能转换系统有功无功解耦控制

2015 International Conference on Power and Advanced Control Engineering (ICPACE) Pub Date : 2015-09-24 DOI:10.1109/ICPACE.2015.7274912

Subir Datta, J. Mishra, A. Roy

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引用次数: 5

摘要

本文研究了一种无速度传感器控制的并网DFIG型变速风能转换系统的性能。针对转子侧变流器无速度传感器定子磁场定向矢量控制，提出了一种基于锁相环(PLL)的转子电流转差速度估计方法，实现了定子有功功率和无功功率的解耦控制，同时在变风速条件下实现了等功率因数下发电量的最大化。估计的转差速度用于转子电流控制器的反电动势补偿。在MATLAB/ Simulink环境下进行了仿真，结果表明所提出的无速度传感器DFIG的变速wcs运行良好。

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Modified speed sensor-less grid connected DFIG based wind energy conversion system for decoupled control of active and reactive power

This paper presents the performance study of a speed sensor-less control of grid connected DFIG based variable speed Wind Energy Conversion System (WECS). A new phase locked loop (PLL) based slip speed estimator using rotor current is proposed for speed sensor-less stator field oriented vector control operation of rotor side converter (RSC) to ensure decoupled control of stator active and reactive power while maximizing the power generation at unity power factor under varying wind speed. The estimated slip speed is used for back emf compensation of rotor current controllers. Simulation has been carried out in MATLAB/ Simulink environment and results show satisfactory operation of the proposed speed sensor-less DFIG based variable speed WECS.

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2015 International Conference on Power and Advanced Control Engineering (ICPACE)

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