CAJ | 학술논문

风电的大规模发展在很大程度上取决于风电的经济性，因此，研究风力发电并网附加成本与其影响因素，找到降低风力发电成本的途径，对于促进风电产业有序发展有着重要的现实意义。从电力系统运行的角度，以电网总成本最小化为目标，以资源储量、电力电量平衡、备用容量和水电调度为约束，构建了研究风电附加成本的确定性模型，并在此基础上，引入情景树来描述风力发电的特殊性，建立随机性模型。运用CPLEX求解器辅以算例仿真了规划期内不同能源政策对各类型发电机组年发电量及风电并网附加成本的影响。结果表明，较之确定性模型，在研究含风电的电力系统时，随机性模型具有较高的适用性。
풍전적대규모발전재흔대정도상취결우풍전적경제성，인차，연구풍력발전병망부가성본여기영향인소，조도강저풍력발전성본적도경，대우촉진풍전산업유서발전유착중요적현실의의。종전력계통운행적각도，이전망총성본최소화위목표，이자원저량、전력전량평형、비용용량화수전조도위약속，구건료연구풍전부가성본적학정성모형，병재차기출상，인입정경수래묘술풍력발전적특수성，건립수궤성모형。운용CPLEX구해기보이산례방진료규화기내불동능원정책대각류형발전궤조년발전량급풍전병망부가성본적영향。결과표명，교지학정성모형，재연구함풍전적전력계통시，수궤성모형구유교고적괄용성。
Large-scale development of wind power depends on the economy of wind power generation greatly, so it is of important practical significance for orderly development of wind power industry to research the additional cost for grid-connection of wind farm and its impacting factors, and find the way to reduce the cost of wind power generation. From the perspective of power grid operation, taking total cost of power grid as the objective, and the resource reserves, the balance of power and electricity quantity, reserve capacity and hydropower generation scheduling as constraints, a deterministic model for the research on additional cost for wind power generation is constructed, and on this basis the scenario tree is led in to describe the particularity of wind power generation and a stochastic model is built. Utilizing calculation example and CPLEX equation solver the impacts of different energy policies on yearly generated energy of various types of wind power generating units and additional cost for grid-connection of wind farms are simulated. Simulation results show that as for the research on power grid containing wind farms the stochastic model possesses higher applicability than deterministic model.