CAJ | 학술논문

国内风电发展迅猛，但“三北”地区电力系统调峰能力有限，造成风电“弃风”现象严重。现有风电年度计划方法只能将风电电量预测结果纳入年度计划，与风电运行受阻的实际情况偏差较大，年度计划难以执行。文中提出一种基于时序仿真的风电年度计划方法，综合考虑风电出力特性、负荷特性、机组调峰特性、电网送出能力等因素，逐时段优化全网含风电的电力平衡，建立了用于研究省级电网年度风电计划的优化模型。以某省级电网为例，对比分析了时序仿真法和典型日分析法的风电平衡能力及其节能减排效益，研究了不同开机方式对风电平衡能力的影响。结果表明，采用滚动3d优化风电平衡模型符合电网调度实际情况，计算速度快，且能够提高年度风电上网电量，为年度计划制定提供了参考。
국내풍전발전신맹，단“삼북”지구전력계통조봉능력유한，조성풍전“기풍”현상엄중。현유풍전년도계화방법지능장풍전전량예측결과납입년도계화，여풍전운행수조적실제정황편차교대，년도계화난이집행。문중제출일충기우시서방진적풍전년도계화방법，종합고필풍전출력특성、부하특성、궤조조봉특성、전망송출능력등인소，축시단우화전망함풍전적전력평형，건립료용우연구성급전망년도풍전계화적우화모형。이모성급전망위례，대비분석료시서방진법화전형일분석법적풍전평형능력급기절능감배효익，연구료불동개궤방식대풍전평형능력적영향。결과표명，채용곤동3d우화풍전평형모형부합전망조도실제정황，계산속도쾌，차능구제고년도풍전상망전량，위년도계화제정제공료삼고。
China”s wind power industry has developed rapidly these years.Because of the limited peak demand regulation capability of the power systems in Northeast,North and Northwest China,the curtailment of wind power has been serious.If we only consider the prediction of wind power,the existing annual wind power plan differs from the real situation after wind curtailment and as such it is difficult to do wind power planning.Considering wind power output characteristics,load characteristics,transmission capacity and some other factors,an annual wind power planning method based on time sequential simulation is proposed.The method can optimize the power balance with wind power at each time period of a year.An optimization model is built for analyzing the wind power plan of provincial power grid.Based on an actual provincial power grid,capabilities in wind power balancing,energy-saving,and emission reduction between time sequence simulation method and typical day analysis method are studied.The impacts of different generating schedules on the wind power balance ability are also included.Case study results show that the model of a 3-day rolling optimization is appropriate for the actual grid dispatching with high computational efficiency.Moreover,the wind power accommodation ability can be improved by using this model to provide a reference for annual planning.