风电功率外送输电容量规划的经济性研究

Economic Research on Transmission Capacity Planning of Wind Power Delivery

摘要:

随着风电规模的不断增加，受既有电网传输容量的限制，将导致大面积弃风，解决这一问题的有效途径是建设风电功率外送通道。因此，对于风电功率外送输电容量的规划是一项重要的研究课题。本文通过构建输电工程的经济效益评估模型，提出了基于风电功率分布特性与输电工程经济性的风电功率外送输电容量的规划方法。最后，以某区域实际电网系统为例，对本文所提出的方法进行验证，在减少输电工程投资成本的同时可以有效的增加输电工程的经济收益。

Abstract:

With the increasing scale of wind power, the transmission capacity limits of the existing power grid will result in a large area of wind curtailment, and the effective way to solve this problem is to build wind power delivery channel. So the transmission capacity planning of wind power delivery is an important research topic. Through constructing the economic evaluation model of transmission projects, the planning method for transmission capacity of wind power delivery is proposed based on wind power distribution characteristics and the economy of transmission projects. Finally, taking an actual power grid system for example, the proposed method is verified, which can reduce the investment cost of transmission projects and can effectively increase the economic benefits of transmission projects.