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A genetic based method for optimal reactive power compensation of transmission network

Pirayesh, A ; Sharif University of Technology | 2006

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  1. Type of Document: Article
  2. DOI: 10.1080/1448837X.2006.11464144
  3. Publisher: Institution of Engineers (Australia) , 2006
  4. Abstract:
  5. Reactive power compensation is known as an effective tool to overcome the violations of voltage limits in electric power systems. It is also deployed to be an efficient method to minimise transmission losses. In order to maximize the effectiveness of reactive power compensation, VAr sources of proper sizes should be placed at some network buses. In this paper, a new VAr expansion tool has been developed to improve the voltage profile and reduce MW losses in a bulk power network. Keeping the minimum expansion cost and minimum switching of capacitor banks during change of load level of the system are emphasized in the proposed method. This method is based on application of genetic algorithm in conjunction with linear programming. Selection of candidate buses for VAr compensation is performed with a modified weak bus oriented method. Genetic algorithm is effectively employed in this algorithm both for selecting the candidate buses for VAr compensation and for preliminary suggestion of optimal solution. The developed method is then applied to the transmission network of Bakhtar Regional Electric Company (BREC) which supplies three provinces of Iran. The simulation results of this case study are also presented in this paper. © Institution of Engineers Australia, 2006
  6. Keywords:
  7. Busbars ; Capacitors ; Electric losses ; Electric potential ; Electric power transmission ; Genetic algorithms ; Linear programming ; Expansion cost ; Network buses ; Transmission losses ; Voltage sensitivity ; Reactive power
  8. Source: Australian Journal of Electrical and Electronics Engineering ; Volume 3, Issue 1 , 2006 , Pages 47-55 ; 1448837X (ISSN)
  9. URL: https://www.tandfonline.com/doi/abs/10.1080/1448837X.2006.11464144