Review of Voltage Control in Low Voltage Distribution Networks with High Penetration of Photovoltaics

Abstract

Photovoltaic power generation is an important way to utilize renewable energy. The grid-connected photovoltaic system has a significant mitigation effect on the current global energy and environmental crisis. However, the voltage problem caused by high penetration grid-connected photovoltaics restricts photovoltaic consumption. Voltage problems caused by photovoltaic grid-connected are introduced, and its causes are analyzed in this paper. It summarizes the voltage control method of high penetration low-voltage distribution network based on voltage sensitivity, active, reactive and tap adjustment. At last, The trends of voltage control of high penetration photovoltaic low-voltage distribution network are prospected from two aspects: control strategy development directions and new technologies trends.