期刊
IEEE TRANSACTIONS ON SUSTAINABLE ENERGY
卷 2, 期 2, 页码 139-147出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TSTE.2010.2098483
关键词
Power distribution; power quality and voltage control; power systems; solar power generation
资金
- Solar Buildings Research Network (SBRN) under the Strategic Network Grants Program of the Natural Sciences and Engineering Research Council (NSERC) of Canada
- Government of Canada through the Program on Energy Research and Development (PERD)
Overvoltages in low voltage (LV) feeders with high penetration of photovoltaics (PV) are usually prevented by limiting the feeder's PV capacity to very conservative values, even if the critical periods rarely occur. This paper discusses the use of droop-based active power curtailment techniques for overvoltage prevention in radial LV feeders as a means for increasing the installed PV capacity and energy yield. Two schemes are proposed and tested in a typical 240-V/75-kVA Canadian suburban distribution feeder with 12 houses with roof-top PV systems. In the first scheme, all PV inverters have the same droop coefficients. In the second, the droop coefficients are different so as to share the total active power curtailed among all PV inverters/houses. Simulation results demonstrate the effectiveness of the proposed schemes and that the option of sharing the power curtailment among all customers comes at the cost of an overall higher amount of power curtailed.
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