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Distributed AC security-constrained unit commitment for multi-area interconnected power systems
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DOI：10.1016/j.epsr.2022.108197.png)
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Abstract
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An AC Security-Constrained Unit Commitment (AC SCUC) for multi-area interconnected power systems is an extension of the unit commitment and AC dynamic optimal power flow, which is nonconvex mixed-integer nonlinear programming. In this paper, the alternating directions method of multipliers combined with the regularized prime-dual interior point method, which is denoted by ADMM-R-PDIPM, is proposed to solve this problem in a distributed way to achieve joint dispatching privacy protection in multi-area interconnected power systems. The alternating directions method of multipliers decomposes the AC SCUC problem into unit commitment and AC dynamic optimal power flow subproblems, it can be solved distributed. In addition, an improved approach reduces the iterative numbers and the running time to overcome the defects of inner and outer algorithms. Then case studies on the IEEE 38 and 118 systems are presented. The results show that the ADMM-R-PDIPM approach can effectively realize the distributed optimal scheduling of AC SCUC.
Keywords:
AC SCUC
Distributed optimization
Alternating directions method of multipliers
Regularized prime-dual interior point method
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