Virtual-Voltage Partition-Based Approach to Optimal Transmission Switching
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Univ. of California, San Diego, CA (United States)
This article deals with optimal transmission switching (OTS) problems involving binary decisions about network topology and nonconvex power flow constraints. We adopt a semidefinite programming formulation for the optimal power flow (OPF) problem that, however, remains nonconvex due to the presence of discrete variables and bilinear products between the decision variables. To tackle the latter, we introduce a physically inspired, virtual-voltage approximation that leads to provable lower and upper bounds on the solution of the original problem. To deal with the exponential complexity caused by the discrete variables, we introduce a graph partition-based algorithm that breaks the problem into several parallel mixed-integer subproblems of smaller size. Simulations on the IEEE bus test cases demonstrate the high degree of accuracy and affordable computational requirements of our approach.
- Research Organization:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Advanced Research Projects Agency - Energy (ARPA-E)
- Grant/Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1665870
- Report Number(s):
- NREL/JA--5D00-77924; MainId:31833; UUID:3667f0f8-ca53-4d1b-a8bd-dd76cf64f7cf; MainAdminID:18543
- Journal Information:
- IEEE Transactions on Control Systems Technology, Journal Name: IEEE Transactions on Control Systems Technology Journal Issue: 3 Vol. 29; ISSN 1063-6536
- Publisher:
- IEEECopyright Statement
- Country of Publication:
- United States
- Language:
- English
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