Economical Operation Optimization of Distribution Network Considering Multiple Adjustment Measures

doi:10.3969/j.issn.1000-7229.2018.08.006

Abstract

Abstract: Due to the strong coupling relationship between active power and reactive power in distribution network, the traditional method of optimizing the active and reactive power cannot make the distribution network operate in the optimal state of economical operation. And the uncertainties of load demand and power of distributed generation bring great challenges to the operation of distribution network. A two-stage robust economical operation optimization method for distribution network considering multiple adjustment measures, including on-load tap changer, capacitor banks, static var compensator, electrical storage system and switch reconfiguration, is proposed on the basis of the branch power flow model. And the non-linear power flow constraints are relaxed by second order cone so that the economical operation optimization model is transformed into the mixed integer second order conic programming model to solve effectively. To solve the uncertainties of load demand and power of distributed generation, two-stage robust optimization method is adopted, and the optimal robust operation strategy of each adjustment measure is obtained through the column-and-constraint generation algorithm. Finally, the validity of the proposed model is verified by IEEE 33-node system.

Key words: distribution network, economical operation, second order conic programming, two-stage robust coordination optimization, distributed generation （DG）

CLC Number:

TM 73

TU Hui1，ZHOU Jiancong，SHI Wenchao，GAO Hongjun，LI Xiang，LIAO Lijuan，LU Lin. Economical Operation Optimization of Distribution Network Considering Multiple Adjustment Measures[J]. Electric Power Construction, 2018, 39(8): 42-52.

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Economical Operation Optimization of Distribution Network Considering Multiple Adjustment Measures

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