A Review of Distributed Control Techniques for Power Quality Improvement in Micro-grids

2017 2nd Asia Conference on Power and Electrical Engineering

能源学;电工学

Ali Zeeshan, Hafiz Muhammad^1 ; Nisar, Fatima^2 ; Hassan, Ahmad^1

Department of Electrical Engineering, UET, Lahore, Pakistan^1

Department of Electrical Engineering, UET, Taxila, Pakistan^2

关键词: Active-reactive power;    Distributed Energy Resources;    Distributed generation source;    Distributed generators;    Distribution feeders;    Harmonic compensation;    Power quality improvement;    Power supply networks;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/199/1/012025/pdf
DOI  :  10.1088/1757-899X/199/1/012025

来源: IOP

【 摘 要 】

Micro-grid is typically visualized as a small scale local power supply network dependent on distributed energy resources (DERs) that can operate simultaneously with grid as well as in standalone manner. The distributed generator of a micro-grid system is usually a converter-inverter type topology acting as a non-linear load, and injecting harmonics into the distribution feeder. Hence, the negative effects on power quality by the usage of distributed generation sources and components are clearly witnessed. In this paper, a review of distributed control approaches for power quality improvement is presented which encompasses harmonic compensation, loss mitigation and optimum power sharing in multi-source-load distributed power network. The decentralized subsystems for harmonic compensation and active-reactive power sharing accuracy have been analysed in detail. Results have been validated to be consistent with IEEE standards.