A Complete Guide to PV Power Plant Overvoltage
Discover the causes, grid impacts, and systematic solutions for overvoltage faults in PV plants. Learn how to prevent failures and ensure stable grid integration.
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.
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 ).
Depending on how long the system is turned off due to the over-voltage issue, Solar Analytics will detect it either as a zero production fault or an under performance issue. In both cases, we will notify you depending on its severity. Some examples of over voltage issues will look like on your dashboard can be seen below.
The distribution of overvoltage events follows that of the seasonal and daily solar cycle, as one would expect assuming solar PV energy being the main driver of overvoltage events.
Discover the causes, grid impacts, and systematic solutions for overvoltage faults in PV plants. Learn how to prevent failures and ensure stable grid integration.
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