风电并网下含核电受端电力系统调峰问题研究

  目的  随着风电装机规模和比重的不断提升，受风电反调峰特性的影响，含核电的受端电力系统（如广东电网）在汛期的调峰问题将更为凸显。为了保障多类型电源协调发展和电网的安全可靠运行。  方法  针对风电并网下含核电的受端电力系统调峰问题，在充分分析国内外核电机组参与调峰情况及其技术经济性的基础上，结合常规确定性调峰校核方法存在的不足，提出了确定性与概率性相结合、典型周/典型日和全年8 760 h全景模拟相结合的系统调峰平衡分析方法。  结果  以我国某沿海省级电网为例，采用所提方法，分析不同风电和外电场景下电网的调峰形势，并提出相应措施建议。  结论  所述方法能够发挥确定性与概率性两种方法各自的优点，对系统调峰平衡进行更为全面和有效的分析与校核。

Research on Peak-shaving Problem of Receiving Power System with Nuclear Power Under Wind Power Grid Connection

  Introduction  With the continuously increasing of the installed capacity and proportion of wind power and other new energy sources generation，the peak-shaving problem of receiving power system with nuclear power（such as Guangdong Power Grid） in flood season will be more prominent due to the influence of wind power anti peak shaving characteristics. In order to ensure the coordinated development of multiple types of power supply and the safe and reliable operation of power grid.  Method  Aiming at the peak shaving problem of the receiving end power system with nuclear power under the wind power grid connection， based on the full analysis of the domestic and foreign nuclear power units' participation in peak shaving and their technical economy， combined with the shortcomings of the conventional deterministic peak shaving check method， a peak shaving balance analysis method combining certainty with probability， typical week / typical day and whole year 8 760 h panoramic simulation was proposed.  Result  Taking the coastal provincial power grid as an example，the proposed method was applied to analyze the peak-shaving situation of receiving power system under different scenarios， and then some suggestions was presented.  Conclusion  The proposed method can give full play to the advantages of both deterministic and probabilistic methods and carry out more comprehensive and effective analysis and verification of the system peak regulation balance.