考虑不同运行模式的交直流混合微电网优化运行方法

Operation method of AC/DC hybridmicrogrid considering different operation modes

交直流混合微电网为直流负荷和直流微源的并网和管理提供了便利的平台,其优化运行研究逐渐成为重要课题。针对交直流混合微电网相比于传统交流微电网更加复杂多样的运行模式,计及经济成本和环保成本建立其优化运行模型,所建立模型因涵盖了交直流混合微电网在实际应用中的不同运行模式而更具适用性。在此基础上,建立在预期模式切换下和非预期模式切换下的综合优化运行模型,保证交直流混合微电网在模式切换下的效益最优。采用混沌粒子群算法对所建立模型设计求解流程。最后通过算例验证该文方法的适用性和有效性。

The AC/DC hybrid microgrid provides a convenient platform for the integration and management of DC load and DC micro sources.It has more complex and diverse operation modes comparing with the traditional AC microgrid.Therefore,an optimal operation model is established under the consideration of the economic and environmental cost to realize a better applicability.Furthermore,the integrated optimal operation models are established under the expected mode switching and the unexpected mode switching respectively.The optimal efficiency of AC/DC hybrid microgrid is guaranteed by model under any mode switching.Then,a chaotic particle swarm optimization algorithm is utilized to solve this model.Finally,an example is given to verify the applicability and effectiveness of proposed method.