The main objective of load-sharing is to distribute the active and reactive loads among the available DGs while maintaining voltage regulation and accommodating various types of loads . In LV and MV networks, load-sharing becomes challenging due to the following factors.
• Most DGs have some local loads,
• Most DGs are non-dispatchable RESs, and
• The stability and reliability of the system gain importance, apart from the cost.
Three different methods of load sharing are commonly employed: droop-based control, communication-based control, and droop-based control with communication link, as described in the following subsections.