Reactive power voltage control in a distribution substation using dynamic-programming

Reactive power voltage control in a distribution substation using dynamic-programming

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Article ID: iaor19962102
Country: United States
Volume: 142
Issue: 6
Start Page Number: 639
End Page Number: 645
Publication Date: Jun 1995
Journal: IEEE Proceedings Generation Transmission and Distribution
Authors: ,
Keywords: programming: dynamic
Abstract:

The reactive power/voltage control problem in a distribution substation is investigated. The purpose is to properly dispatch the shunt capacitors and onload tap changers at the distribution substation based on the forecast hourly loads of main transformer and its primary bus voltage such that the reactive power floads through the main transformer, and the transformer secondary but voltage deviations from the desired values can be minimised. Practical constraints on secondary bus voltage limits and the maximum allowable number of switching operations in a day for the onload tap changers are taken into account. An approach based on dynamic programming is presented to reach the desired dispatching schedule. To demonstrate the usefulness of the proposed approach, reactive power/voltage control in a distribution substation within the service area of Taipei City District Office of Taiwan Power Company is performed. It is found that a proper dispatching schedule for the shunt capacitors and onload tap changers can be reached by the proposed method.

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