The Improvement Method of Distributed Renewable Energy Consumption Capability and the Operation Control Strategy in 10kV Distribution Network

The development of distributed renewable energy has brought new challenges to the security and stability operation of the power grid. Its influence on the local 10kV distribution network is increasingly prominent. Distribution network access to distributed renewable energy makes the power flow have multi-directivity characteristics. The original distribution network operation mode is difficult to adapt. In this paper, the constraint of the power abandoning of renewable energy, 10kV line power, the power balance of distribution network, and transformer power are considered. The optimal allocation model of energy storage capacity is proposed based on the peak-valley electricity price at different times. Then, by analyzing the actual power abandonment rate of the distribution network, the evaluation index of distributed renewable energy consumption capability is proposed. Finally, an actual 10kV distribution network is used to analyze the consumption capability of the distribution network with distributed renewable energy under different energy storage configurations. The effectiveness and adaptability of the proposed method are verified.