- Title
- Optimal placement of static compensators for multi-objective voltage stability enhancement of power systems
- Creator
- Xu, Yan; Dong, Zhao Yang; Xiao, Chixin; Zhang, Rui; Wong, Kit Po
- Relation
- IET Generation, Transmission and Distribution Vol. 9, Issue 15, p. 2144-2151
- Publisher Link
- http://dx.doi.org/10.1049/iet-gtd.2015.0070
- Publisher
- The Institution of Engineering and Technology
- Resource Type
- journal article
- Date
- 2015
- Description
- The Institution of Engineering and Technology. Static compensators (STATCOMs) are able to provide rapid and dynamic reactive power support within a power system for voltage stability enhancement. While most of previous research focuses on only an either static or dynamic (short-term) voltage stability criterion, this study proposes a multi-objective programming (MOP) model to simultaneously minimise (i) investment cost, (ii) unacceptable transient voltage performance, and (iii) proximity to steady-state voltage collapse. The model aims to find Pareto optimal solutions for flexible and multi-objective decision-making. To account for multiple contingencies and their probabilities, corresponding risk-based metrics are proposed based on respective voltage stability measures. Given the two different voltage stability criteria, a strategy based on Pareto frontier is designed to identify critical contingencies and candidate buses for STATCOM connection. Finally, to solve the MOP model, an improved decomposition-based multi-objective evolutionary algorithm is developed. The proposed model and algorithm are demonstrated on the New England 39-bus test system, and compared with state-of-the-art solution algorithms.
- Subject
- STATCOMs; voltage stability; MOP model; evolutionary algorithm
- Identifier
- http://hdl.handle.net/1959.13/1329870
- Identifier
- uon:26261
- Identifier
- ISSN:1751-8687
- Language
- eng
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