CAJ | 학술논문

提出了一种结合可中断电力合同交易的电力系统随机生产模拟方法,其中把可中断电力等效为具有随机停运特性的灵活发电资源.考虑了可中断合同定价模型与合同交货时段系统边际运行成本之间的相关性问题,并采用一种迭代协调算法来加以解决.该方法可用于分析可中断电力合同交易对于系统发电可靠性和经济性的影响,以及考虑系统需求不确定性和发电机组故障的可中断电力合同的系统决策.算例仿真验证了该方法的有效性,并且表明在不确定环境下要求以尽可能小的成本来保证系统适当可靠性水平时,可中断电力合同交易具有重要应用价值.
제출료일충결합가중단전력합동교역적전력계통수궤생산모의방법,기중파가중단전력등효위구유수궤정운특성적령활발전자원.고필료가중단합동정개모형여합동교화시단계통변제운행성본지간적상관성문제,병채용일충질대협조산법래가이해결.해방법가용우분석가중단전력합동교역대우계통발전가고성화경제성적영향,이급고필계통수구불학정성화발전궤조고장적가중단전력합동적계통결책.산례방진험증료해방법적유효성,병차표명재불학정배경하요구이진가능소적성본래보증계통괄당가고성수평시,가중단전력합동교역구유중요응용개치.
An efficient method is developed for integrating interruptible electricity contracts in probabilistic production simulation of power systems. The contracted interruptible electricity is modeled as a flexible generating resource with random outage effect. The presence of interdependence between the pricing models of interruptible electricity contracts and the system short-run marginal cost at the contracted delivery time is addressed and solved with an iterative coordinating algorithm. The proposed approach can be used to comprehensively assess the impacts of interruptible electricity contracts on power generation system reliability and economics.A systematic decision-making for interruptible electricity contracts can also be achieved, which allows uncertainties in system demand and generating unit outages to be effectively included. Numerical simulations are conducted to illustrate the validity of the methodology. It is shown that under uncertain environments, interruptible electricity contracts can play an important role as tools to ensure appropriate system reliability with minimum possible cost.