基于PMSG的DG机组馈电三相三线负载电能质量的改进

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI:10.1109/PEDES.2014.7041996

Bhim Singh, Kam Niwas

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引用次数: 1

摘要

本文介绍了采用STATCOM(配电静态补偿器)对基于永磁同步发电机(PMSG)的DG(柴油发电机)机组馈电三相三线负载时电能质量的改善。在直流链路上带有电容的3腿电压源转换器(VSC)被用作STATCOM。采用基于Adaline的控制算法对系统的参考源电流进行估计。采用PWM(脉宽调制)电流控制器对STATCOM三支路VSC的igbt产生门控脉冲。STATCOM能够提供电压控制、谐波消除、功率因数改善、负载平衡和负载补偿。在稳态和动态条件下对系统的性能进行了实验测试。采用变频驱动三相感应电动机作为柴油机调速样机。因此，DG机组以恒速运行，使供电频率保持恒定，而不受负载条件的影响。

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Power quality improvement of PMSG based DG set feeding 3-phase 3-wire load

This paper presents power quality improvement of PMSG (Permanent Magnet Synchronous Generator) based DG (Diesel Generator) set feeding a 3-phase 3-wire load using STATCOM (Distribution Static Compensator). A 3-leg VSC (Voltage Source Converter) with a capacitor on the DC link is used as STATCOM. The reference source currents for the system are estimated using a Adaline based control algorithm. A PWM (Pulse Width Modulation) current controller is using for generation of gating pulses of IGBTs of three leg VSC of the STATCOM. The STATCOM is able to provide voltage control, harmonics elimination, power factor improvement, load balancing and load compensation. The performance of the system is experimentally test on various types of loads under steady state and dynamic conditions. A 3-phase induction motor with variable frequency drive is used as a prototype of diesel engine with speed regulation. So, the DG set is run at constant speed so that frequency of supply remains constant irrespective of loading condition.

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2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)

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