Scalable Optimization Methods for Distribution Networks With High PV Integration
- University of Minnesota, Minneapolis, MN (United States)
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- University of British Columbia, Vancouver, BC (Canada)
Here this paper proposes a suite of algorithms to determine the active- and reactive-power setpoints for photovoltaic (PV) inverters in distribution networks. The objective is to optimize the operation of the distribution feeder according to a variety of performance objectives and ensure voltage regulation. In general, these algorithms take a form of the widely studied ac optimal power flow (OPF) problem. For the envisioned application domain, nonlinear power-flow constraints render pertinent OPF problems nonconvex and computationally intensive for large systems. To address these concerns, we formulate a quadratic constrained quadratic program (QCQP) by leveraging a linear approximation of the algebraic power-flow equations. Furthermore, simplification from QCQP to a linearly constrained quadratic program is provided under certain conditions. The merits of the proposed approach are demonstrated with simulation results that utilize realistic PV-generation and load-profile data for illustrative distribution-system test feeders.
- Research Organization:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Laboratory Directed Research and Development (LDRD) Program; National Science Foundation (NSF); University of Minnesota
- Grant/Contract Number:
- AC36-08GO28308; CCF 1423316; CyberSEES 1442686; ECCS-1453921; RL-0010-13
- OSTI ID:
- 1329994
- Report Number(s):
- NREL/JA-5D00-66169
- Journal Information:
- IEEE Transactions on Smart Grid, Vol. 7, Issue 4; ISSN 1949-3053
- Publisher:
- IEEECopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Similar Records
Beyond Relaxation and Newton–Raphson: Solving AC OPF for Multi-Phase Systems With Renewables
A QCQP Approach for OPF in Multiphase Radial Networks with Wye and Delta Connections: Preprint