A Trust Region SQP Method for Coordinated Voltage Control in Smart Distribution Grid

This paper investigates the coordinated voltage control problem for smart distribution grid with the integration of distributed generation (DG). By actively participating in voltage control together with under-load tap changer and shunt capacitors, DG can operate more effectively in the distribution...

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Bibliographic Details
Published in:IEEE transactions on smart grid Vol. 7; no. 1; pp. 381 - 391
Main Authors: Sheng, Wanxing, Liu, Ke-yan, Cheng, Sheng, Meng, Xiaoli, Dai, Wei
Format: Journal Article
Language:English
Published: IEEE 01.01.2016
Subjects:
Active control
Capacitors
Control systems
Coordinated voltage control
Devices
distribution generation (DG)
Electric potential
Mathematical models
Networks
Optimization
Reactive power
sequential quadratic programming
Shunt capacitors
smart distribution grid
Switches
Vectors
Voltage
Voltage control
Wind speed
Coordinated voltage control
smart distribution grid
distribution generation (DG)
sequential quadratic programming
ISSN:1949-3053, 1949-3061
Online Access:Get full text
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Summary:This paper investigates the coordinated voltage control problem for smart distribution grid with the integration of distributed generation (DG). By actively participating in voltage control together with under-load tap changer and shunt capacitors, DG can operate more effectively in the distribution network. The objective of the proposed control method is to minimize the active power loss in the distribution system and to decrease the number of switching device operations while maintaining the grid voltage within the allowable range. Nondispatchable and dispatchable DG are both considered in the control method. To solve the mixed integer nonlinear programming problem, the trust region sequential quadratic programming method is integrated with the branch and bound approach to iteratively approximate the optimization with trust region guidance. Numerical tests on a standard 10-kV distribution system, a real 10-kV distribution system in the Sichuan province of China, and the IEEE 13-bus demonstrate the applicability of the proposed coordinated voltage control method.
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content type line 23
ISSN:1949-3053
1949-3061
DOI:10.1109/TSG.2014.2376197