Research on Distributed Control of Controllable Micro-Source in Micro-Grid

To overcome the shortcomings of the centralized control method, such as large calculation, strong communication dependency and poor system reliability. First, based on the traditional IEEE14 standard network topology, this paper introduces the controllable micro-source consist of PV and energy storage basic units. Micro-source cost model and constraints of photovoltaic renewable power generation unit, controllable flexible load, energy storage unit and so on are established. Next, consensus algorithm with no leader of two different communication coefficients D and M, N (CANLD and CANLMN) are finished when controllable micro-sources are inserted into micro-grid, and finally the eigenvalue perturbation method is used to prove the convergence of two different consensus algorithms. The results of the case study show that the two different multi-agent non-leader algorithms with traditional energy and controllable microsources incremental cost as the consistency variable can satisfy the optimal economic objective in microgrid and CANLMN can reach the incremental cost consistency of each micro-source with smaller computation and faster speed.