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Optimal operation of controllable load and battery considering transmission constraint in smart grid

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6 Author(s)
Tomonori Goya ; The Department of Electrical and Electronics Engineering, Faculty of Engineering, University of the Ryukyus, Okinawa, Japan ; Tomonobu Senjyu ; Atsushi Yona ; Naomitsu Urasaki
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Recently, the deregulation and liberalization in power market increase the competition in retail and power sector. Therefore, power company needs to reduce operational cost and maximizes the profit by operating generator with higher efficiency. On the other hand, energy consumption is increasing rapidly due to the proliferation of all-electric houses. So the controllable load such as electric water heater, heat pump and electric vehicles are introduced to the power system. However conventional system does not operate the thermal unit and controllable load in a coordinated manner. This paper focuses on operating the controllable load, battery and thermal units in a coordinated manner. Furthermore, this paper considers the transmission constraints. The proposed method uses a tabu search for optimization method. Optimizing procedure is divided into two parts. Firstly, actual load is controlled by controllable load and battery. Finally, the schedule of thermal unit commitment problem is decided in the revised load. Simulation results show the validation of proposed method and validate the performance and effectiveness of the algorithm for controllable load and battery.

Published in:

IPEC, 2010 Conference Proceedings

Date of Conference:

27-29 Oct. 2010