Power Quality Analysis in Microgrid: An Experimental Approach  

作　　者：Arangarajan Vinayagam KSV Swarna Sui Yang Khoo Alex Stojcevski Arangarajan Vinayagam;KSV Swarna;Sui Yang Khoo;Alex Stojcevski(Faculty of Science, Engineering and Built Environment, Deakin University, Geelong, Australia;Centre of Technology, RMIT University, Ho Chi Minh, Vietnam)

机构地区：[1]Faculty of Science, Engineering and Built Environment, Deakin University, Geelong, Australia [2]Centre of Technology, RMIT University, Ho Chi Minh, Vietnam

出　　处：《Journal of Power and Energy Engineering》2016年第4期17-34,共18页电力能源（英文）

摘　　要：Microgrid (MG) integrated with Distributed Generation (DG) provides several benefits like reliable, secure, and high efficient of energy supply, while minimizing power loss, deferring expansion of power distribution infrastructures, and reduced carbon emission of energy supply etc. to the communities. Despite of the several benefits, there are several challenges existing due to the integration of different characteristics and technology of DG sources in MG network. Power Quality (PQ) issue is one of the main technical challenges in MG power system. In order to provide improved PQ of energy supply, it is necessary to analyse and quantify the PQ level in MG network. This paper investigates the detail of PQ impacts in a real MG network carried out through an experimental analysis. Voltage and frequency variations/deviations are analysed in both on-grid and off-grid mode of MG operation at varying generation and varying load conditions. Similarly unbalance voltage and current level in neutral are estimated at unbalanced PV generation and uneven load distribution in MG network. Also current and voltage THD are estimated at different PV power level. Finally the results obtained from the analysis are compared to that of Australian network standard level.Microgrid (MG) integrated with Distributed Generation (DG) provides several benefits like reliable, secure, and high efficient of energy supply, while minimizing power loss, deferring expansion of power distribution infrastructures, and reduced carbon emission of energy supply etc. to the communities. Despite of the several benefits, there are several challenges existing due to the integration of different characteristics and technology of DG sources in MG network. Power Quality (PQ) issue is one of the main technical challenges in MG power system. In order to provide improved PQ of energy supply, it is necessary to analyse and quantify the PQ level in MG network. This paper investigates the detail of PQ impacts in a real MG network carried out through an experimental analysis. Voltage and frequency variations/deviations are analysed in both on-grid and off-grid mode of MG operation at varying generation and varying load conditions. Similarly unbalance voltage and current level in neutral are estimated at unbalanced PV generation and uneven load distribution in MG network. Also current and voltage THD are estimated at different PV power level. Finally the results obtained from the analysis are compared to that of Australian network standard level.

关 键 词：MICROGRID Distributed Generation Power Quality Renewable Energy Total Harmonic Distortion 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]