Comparative study of effectiveness of different var compensation devices in large-scale power networks
来源期刊：中南大学学报(英文版)2013年第3期
论文作者：Reza Sirjani Azah Mohamed Hussain Shareef
文章页码：715 - 723
Key words：shunt capacitor; static var compensator; static synchronous compensator; power loss; voltage profile; voltage stability
Abstract: a comparison of the effectiveness of installing reactive power compensators, such as shunt capacitors, static var compensators (SVCs), and static synchronous compensators (STATCOMs), was presented in large-scale power networks. A suitable bus was first identified using modal analysis method. The single shunt capacitor, single SVC, and single STATCOM were installed separately on the most critical bus. The effects of the installation of different devices on power loss reduction, voltage profile improvement, and voltage stability margin enhancement were examined and compared for 57- and 118-bus transmission systems. The comparative study results show that SVC, and STATCOM are expensive compared to shunt capacitor, yet the effect of installing STATCOM is better than SVC and the effect of installing SVC is better than that of shunt capacitor in achieving power loss reduction, voltage profile improvement and voltage stability margin enhancement.
Reza Sirjani, Azah Mohamed, Hussain Shareef
(Department of Electrical, Electronic and Systems Engineering,
Universiti Kebangsaan, Bangi 43600, Malaysia)
Abstract:a comparison of the effectiveness of installing reactive power compensators, such as shunt capacitors, static var compensators (SVCs), and static synchronous compensators (STATCOMs), was presented in large-scale power networks. A suitable bus was first identified using modal analysis method. The single shunt capacitor, single SVC, and single STATCOM were installed separately on the most critical bus. The effects of the installation of different devices on power loss reduction, voltage profile improvement, and voltage stability margin enhancement were examined and compared for 57- and 118-bus transmission systems. The comparative study results show that SVC, and STATCOM are expensive compared to shunt capacitor, yet the effect of installing STATCOM is better than SVC and the effect of installing SVC is better than that of shunt capacitor in achieving power loss reduction, voltage profile improvement and voltage stability margin enhancement.
Key words:shunt capacitor; static var compensator; static synchronous compensator; power loss; voltage profile; voltage stability
