一种协调控制微电网功率平衡的策略

A Coordinated Control Strategy for Microgrid Power Balance

针对交直流混合微电网控制机制存在一定缺陷且急需完善的状况,提出交直流混合微电网中的相关功率协调控制策略。分析交直流混合微电网在不同运行条件下的功率平衡关系;设计并网和孤岛条件下交直流混合微电网的功率协调控制策略。实验阶段,在MATLAB/Simulink中设计出交直流混合微电网的整个仿真模型,对所提控制策略实效性进行验证。结果表明,所提控制策略能有效稳定混合微电网功率。仿真结果进一步验证了所提模型对提高混合微电网稳定性能具有一定借鉴作用。

Aiming at the defects of imperfect control mechanism of AC/DC hybrid microgrid,a power coordination control strategy in AC/DC hybrid microgrid is proposed.The power balance relationship of AC/DC hybrid microgrid under different operating conditions is analyzed.The power coordination control strategy of AC/DC hybrid microgrid under the conditions of grid connection and island is designed.In the experimental stage,the simulation model of the whole AC/DC hybrid microgrid is established in MATLAB/Simulink to verify the effectiveness of the proposed control strategy.The results show that the proposed control strategy can effectively stabilize the power of hybrid microgrid.The simulation results further verify that the proposed model can be used as a reference to improve the stability performance of hybrid microgrid.