Voltage Reactive Power Optimization Control Method for Rural Distribution Network with Distributed Generation

Due to the randomness, volatility and intermittent characteristics of distributed generation, more and more distributed generation are connected to rural distribution networks, which makes the voltage reactive power control in rural distribution network more difficult. For the problem of voltage reactive power optimization in active distribution network, considering the reactive power compensation effect of distributed generation to distribution network, a voltage reactive power optimization control method suitable for rural distribution network which had distributed generation was proposed. By regulating the reactive power output of the distributed generation, adjusting the tap position of the on-load tap changer, and switching the reactive power compensation equipment, the safe and reliable economic operation capability of the rural active distribution network can be effectively improved. The multi-objective coordinated optimization control model considering the distributed generation utilization rate, network loss, voltage fluctuation and reactive power equipment switching cost was established. A well-converged cooperative particle swarm optimization algorithm was used to solve the multi-objective optimization problem. Finally, the IEEE 13 node power distribution system was used for simulation calculation, and compared with several multi-objective optimization algorithms, and the feasibility and effectiveness of the proposed model and algorithm were verified. © 2019, Chinese Society of Agricultural Machinery. All right reserved.