CAJ | 학술논문

针对风电出力波动性和间歇性对电力系统运行的影响，构建基于条件风险方法的电力系统旋转备用模型。以发电总成本和旋转备用总费用最小为目标，在常规调度优化约束基础上，增加正、负旋转备用 CVaR 值的不等式约束，量化风电不确定性因素。采用蒙特卡罗模拟和解析法相结合，解决旋转备用 CVaR 值解析的难题，将函数离散化，计算方便简捷。仿真结果表明，旋转备用的条件风险方法可获得不同置信水平和不同风电出力情况下的经济成本和备用容量，更大限度利用风电出力，降低常规能源调度成本，有效解决了风电等新能源带来的随机性调度问题。
침대풍전출력파동성화간헐성대전력계통운행적영향，구건기우조건풍험방법적전력계통선전비용모형。이발전총성본화선전비용총비용최소위목표，재상규조도우화약속기출상，증가정、부선전비용 CVaR 치적불등식약속，양화풍전불학정성인소。채용몽특잡라모의화해석법상결합，해결선전비용 CVaR 치해석적난제，장함수리산화，계산방편간첩。방진결과표명，선전비용적조건풍험방법가획득불동치신수평화불동풍전출력정황하적경제성본화비용용량，경대한도이용풍전출력，강저상규능원조도성본，유효해결료풍전등신능원대래적수궤성조도문제。
For the impact from the fluctuations and intermittent of wind power output,a new model of spinning reserve with conditional method-at-risk (CVaR)on power system operation was presented in this paper.Taking minimized generation cost and spinning reserve cost as objec-tive,adding CVaR of up/down spinning reserve as inequality constraints which based on conven-tional dispatching optimization constraints,the impact from the uncertain factors of wind power was quantified in the model.Based on the Monte Carlo simulation and analytical combined meth-od,the CVaR of spinning reserve resolve difficulties were solved.The Monte Carlo simulation and analytical method are combined to disperse function and make calculation convenient and sim-ple.Simulation results showed that the spinning reserve method with CVaR could get the eco-nomic cost and reserve capacity which were analyzed in different confident levers and different wind power outputs,it also made greater extent use of wind power output and reduced the dis-patching cost of conventional energy,and deal with stochastic problems by the new energy such as wind power effectively.