Evaluation of Receiving-end Credible Capacity for Joint Delivery of Wind Power and Conventional Electricity Generation

As a tool of measuring how much electricity generation contributes to system adequacy, the concept of credible capacity has received great attention in power system planning, especially on wind power. However, current evaluation ignores the outages of transmission lines. In China, several electric generation bases containing intermittent energy are planned to be delivered to load center through long transmission lines. With such background, this paper proposed the concept of receiving-end credible capacity. By modeling transmission line outages using sequence operation theory, two-node power system production simulation procedure was proposed. The model can be calculated efficiently and thus facilitates the evaluation of receiving-end credible capacity. Modified IEEE RTS-79 system was used to verify the validity of the proposed model. Impact factors of receiving-end credible capacity under the circumstance of wind power and thermal generation bundling delivery were studied.