Research on Planning of PV-integrated Transmission Grid Considering Operation Efficiency

摘要

With the large-scale application of solar in power system, traditional transmission planning of merely focusing on construction investment and operation cost could not meet the practical demands. Based on the evaluation index of the line operation efficiency and the distribution of the power flow, a method for evaluating the operation efficiency of power grid based on the betweenness of active power flow is proposed. On this basis, a transmission grid planning model considering operation efficiency and photovoltaic(PV) curtailment loss is established. The optimization problem is then solved via modified firefly algorithm(MFA) and verified on an IEEE 18-node system. The case study verifies the rationality and validity of the planning model and the method.