大规模风电并网的电源规划研究

Study on generation expansion planning of large-scale wind power integration

随着风电的大规模并网,电网的调峰能力将成为电源发展的重要约束。所以,为了寻求一个最经济可行的电源规划,笔者提出通过建立数学模型来获取。在建立模型时,首次考虑了风电机组的规划问题,把电网对风电的接纳能力作为重要的约束条件进行研究。同时,在使用进化规划方法求解电源规划优化问题的过程中,针对常规电源与风电机组在单台容量上的差异,设计了新的初始种群形成方法与进化策略,改进了原有算法的优化精度和收敛特性,并基于完备的数学模型和改进的优化算法,在最后对实际算例进行了计算求解。

With large - scale wind power integrating to power system, peak regulation seriously restricts the develop-ment of generation expansion. Therefore in order to seek the most economic and feasible plan, the author proposes to solve the question through the mathematical model, a model which takes the planning of wind power units into consideration and regards the adaptability of power network of wind power as the significant constraint. As the meantime, during the optimization of generation expansion p sis of the difference of single capacity between common and ulation formulation and evolutionary strategy are designed, lanning solved by evolutionary programming, on the ba- wind -power generation expansion, the new initial pop-which improves the optimization precision and conver- gence of the original algorithm. Based on the complete mathematical model and the improved optimization algo-rithm, the practical example is solved.