Load profile partitioning and dynamic reactive power optimization

The optimal reactive power control scheme changes throughout a day due to the time-varying load demands. In order to reduce switching operations of control devices, the load demand profile is usually decomposed into several sequential segments, in which the load can be regarded approximately invariable. Two new load profile partitioning methods are proposed in this paper. One of them uses an optimization method, where the objective function is inherited from typical clustering problems, and the other uses a heuristic iteration method to partition the load profile by evaluating the maximum load deviation (MLD).