A centralized voltage control strategy to mitigate effects of highly intermittent PV generation in distribution network
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Date
2024-11
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University of New Brunswick
Abstract
High penetration of photovoltaics in distribution networks creates voltage regulation problems. The local volt-watt and volt-var control of PVIs are capable of voltage regulation however, their uniform control curves lead to unfair utilization of active and reactive power in voltage stability. This unfairness in active and reactive power minimizes the total active power injection into the grid. This research considered a centralized optimization algorithm in an attempt to reduce the unfairness in utilization of active and reactive power in voltage stability. An optimization algorithm is run to set the PVI volt-watt and volt-var control curves setpoints to minimize the unfairness with the objective of prioritizing reactive power capabilities and maximizing active power injection in distribution networks. Test results indicate that the centralized strategy successfully reduces the unfairness in utilization of available resources as well as maximizes the total active power injected into the system.