AC-DC power grid decoupled load flow simulation model

交直流电网解耦潮流仿真模型

Abstract

本发明涉及一种交直流电网解耦潮流仿真模型,包括交流网络部分ΔSph、直流网络部分ΔDph、换流器部分ΔVph及一控制方程ΔVkz;所述交流网络部分ΔSph包括交流节点有功平衡方程ΔPs及交流节点无功平衡方程ΔQs,所述直流网络部分ΔDph包括直流节点功率平衡方程ΔPd,所述换流器部分ΔVph包括换流器交流侧有功平衡方程换流器交流侧无功平衡方程及换流器直流侧功率平衡方程所述控制方程ΔVkz包括定直流侧电压控制方程定交流侧有功控制方程定交流侧无功控制方程及定交流侧电压控制方程本发明保障了模型在大规模交直流混联电网的潮流仿真的并行计算中的计算效率。
The invention relates to an AC-DC power grid decoupled load flow simulation model. The AC-DC power grid decoupled load flow simulation model comprises an AC network part Delta Sph, a DC network part Delta Dph, a transverter part Delta Vph and a control equation Delta Vkz, wherein the AC network part Delta Sph comprises an AC node active balance equation Delta Ps and an AC node reactive balance equation Delta Qs; the DC network part Delta Dph comprises a DC node power balance equation Delta Pd; the transverter part Delta Vph comprises a transverter AC side active balance equation Delta Pcs, a transverter AC side reactive balance equation Delta Qcs and a transverter DC side power balance equation Delta Pcd; and the control equation Delta Vkz comprises a constant DC side voltage control equation Delta icuc_set, a constant AC side active control equation Delta PcPs_set, a constant AC side reactive control equation Delta QcQs_set and a constant AC side voltage control equation Delta QcUs_set. The AC-DC power grid decoupled load flow simulation model can guarantee the calculation efficiency for parallel computing for load flow simulation in a large scale AC-DC hybrid power grid for the model.

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