A multiagent-based cooperative voltage and reactive power control

In order to maintain the system voltage within the optimal range and to prevent voltage instability phenomena before they occur, a variety of phase modifying equipment are installed in optimal locations throughout the power system network and a variety of methods of voltage reactive control are employed. The proposed system divides the traditional method of controlling voltage and reactive power into two subproblems: “voltage control” to adjust the secondary bus voltage of substations, and “reactive power control” to adjust the primary bus voltage. In this system, two types of agents are installed in substations in order to coordinate voltage control and reactive power control. In order to verify the performance of the proposed method, it was applied to a model network system. The results confirm that our proposed method is able to control violent fluctuations in load. © 2012 Wiley Periodicals, Inc. Electr Eng Jpn, 181(2): 20–28, 2012; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/eej.22286

[1]  P. Pruvot,et al.  An improved voltage control on large-scale power system , 1996 .

[2]  Yuan-Yih Hsu,et al.  A hybrid artificial neural network-dynamic programming approach for feeder capacitor scheduling , 1994 .

[3]  Takeshi Nagata,et al.  A multi-agent based distributed reactive power control method , 2009 .

[4]  S.-K. Chang,et al.  Optimal real-time voltage control , 1990 .

[5]  M.E. Baran,et al.  A Multiagent-Based Dispatching Scheme for Distributed Generators for Voltage Support on Distribution Feeders , 2007, IEEE Transactions on Power Systems.

[6]  Naoto Yorino,et al.  Interaction among multiple controls in tap change under load transformers , 1996 .

[7]  Jong-young Park,et al.  Control of a ULTC Considering the Dispatch Schedule of Capacitors in a Distribution System , 2007, IEEE Transactions on Power Systems.

[8]  C. J. Bridenbaugh,et al.  Voltage control improvement through capacitor and transformer tap optimization , 1992 .

[9]  Atsushi Kato,et al.  Voltage and Reactive Power Control Taking into Account of Economy and Security by using Tabu Search , 2008 .

[10]  J.-C. Vannier,et al.  Multiobjective Location of Automatic Voltage Regulators in a Radial Distribution Network Using a Micro Genetic Algorithm , 2007, IEEE Transactions on Power Systems.

[11]  O. T. Tan,et al.  Neural-net based real-time control of capacitors installed on distribution systems , 1990 .

[12]  K.Y. Lee,et al.  Coordination control of ULTC transformer and STATCOM based on an artificial neural network , 2005, IEEE Transactions on Power Systems.

[13]  Yutian Liu,et al.  Optimal reactive power and voltage control for radial distribution system , 2000, 2000 Power Engineering Society Summer Meeting (Cat. No.00CH37134).

[14]  G. Moreschini,et al.  Coordination between the reactive power scheduling function and the hierarchical voltage control of the EHV ENEL system , 1995 .

[15]  W. G. Scott,et al.  Automating the restoration of distribution services in major emergencies , 1990 .

[16]  Takeshi Nagata,et al.  Multi‐agent cooperative voltage and reactive power control , 2010 .

[17]  Takeshi Nagata,et al.  A Multi-agent Cooperative Voltage and Reactive Power Control , 2008 .

[18]  M. G. Lauby,et al.  Coordination of a distribution level continuously controlled compensation device with existing substation equipment for long term VAr management , 1994 .