CAJ | 학술논문

提出了从多元电力系统的角度对抽水蓄能进行经济性分析的方法。基于混合整数规划构建了含火电、CCGT、水电、风电、核电、抽水蓄能等各类电源的多元电力系统机组组合模型。采用该模型计算抽水蓄能单位容量的收益现值，并与单位容量的投资成本比较以分析其经济性。算例测试的结果证明了模型和方法的可行性。在此基础上，进一步研究了负荷侧的峰谷差率、电源侧的风电容量、水火电比例、核电容量和火电调节范围变化对抽水蓄能经济性的影响。算例结果显示，水火电比例、风电容量以及核电容量的变化对抽水蓄能的经济性的影响较大。
제출료종다원전력계통적각도대추수축능진행경제성분석적방법。기우혼합정수규화구건료함화전、CCGT、수전、풍전、핵전、추수축능등각류전원적다원전력계통궤조조합모형。채용해모형계산추수축능단위용량적수익현치，병여단위용량적투자성본비교이분석기경제성。산례측시적결과증명료모형화방법적가행성。재차기출상，진일보연구료부하측적봉곡차솔、전원측적풍전용량、수화전비례、핵전용량화화전조절범위변화대추수축능경제성적영향。산례결과현시，수화전비례、풍전용량이급핵전용량적변화대추수축능적경제성적영향교대。
This paper proposes an approach to evaluate the economics of pumped-storage units from the perspective of a multi-type power system. An MIP-based unit commitment model with various types of power sources is established, which integrates thermal, CCGT, hydro, wind, nuclear with pumped-storage units. Based on the model, the net present value of pumped-storage per megawatt is calculated. By comparing the net present value with the capital cost per megawatt, the economic evaluation of pumped-storage unit is conducted. The case study proves the feasibility of the model and the above approach. Furthermore, this paper analyzes the influence on the economic results of pumped-storage units by the change of peak-valley difference of the system load, the regulating range of thermal units, the capacity of nuclear and wind power, and the thermal-hydro proportion. The case study shows that the economics of pumped-storage is most influenced by the change of the capacity of nuclear and wind power and the thermal-hydro proportion.