Solar power generation voltage overvoltage

How to control overvoltage in a PV generator?

An effective way to correct the unacceptable overvoltage is to control the reactive power of the line through the inverter of the PV generators whenever an out of limit overvoltage is detected.

Do radial low-voltage grids cause overvoltage?

In the previous section, it became obvious that PV power generators connected in radial low-voltage grids cause overvoltage at the end of the line, depending on the topology, the consumption loads and the intensity of the solar radiation.

Can solar power increase the voltage levels of a distribution grid?

In addition to solar PV, other types of electricity generation, such as wind or combined heat power, can increase the voltage levels of the grid, potentially leading to overvoltages. However, for the distribution grid in scope of this research, these types of generation are seldomly connected to the grid at the household-level.

Can a low PV system cause overvoltage?

In residential feeders, in which the load consumption is relatively small during high PV generation periods, the potential for overvoltage is greater, and a lower share of PV systems may cause reverse power flow and an unacceptable voltage rise in the grid.

Why is photovoltaic overvoltage a problem?

This in turn increases the occurrence of overvoltages, when photovoltaic (PV) feed-in minus local energy consumption exceeds grid constraints. Such overvoltages can lead to unsafe situations and failure or destruction of appliances for customers within the residential and commercial fields ( David, Elphick, & Crawford, 2017 ).

Can grid reinforcement solve the overvoltage problem in high PV generation?

Grid reinforcement is suggested as a solution to improve the voltage profiles of customers in the condition of high EV penetration. In a similar way, grid reinforcement seems one of the most effective methods for solving the overvoltage issue in high PV generation conditions .