Reactive Power and Voltage Co-Control Technology to Control Over-Voltage Problem of Distribution Network Caused by Grid-Connected Distributed Photovoltaic Project

For the over-voltage of 10 kv bus, line and distribution transformer in substation caused by photovoltaic power backward after a large number of distributed PV access, we independently develop reactive power-voltage control equipment, actively monitor and cooperate control, at the same time, the voltage of the distribution network should be adjusted to meet the requirements of the national supply voltage standards to reduce the impact of distributed photovoltaic access on the grid, to achieve the distributed photovoltaic project grid and distribution network voltage management organic coordination.