CAJ | 학술논문

在编制短期发电计划时,为保证机组年度、月度合同电量的完成,需要对部分机组的日发电量进行限定,电能计划安全校正优化计算需要考虑这类约束.发电量属能量量纲,而安全校正模型中优化变量为机组出力,属功率量纲,且分时段独立建模,这给引入该约束造成一定困难.本文综合分析了机组发电量约束及安全校正计算的特点,提出了一种有效的处理方法,通过修正机组出力可调整量约束,将发电量约束隐含于各越限时段的建模和计算过程中,在安全校正计算完成后自然得到满足.提出了电量分解算法及动态修正步骤.该处理方案只修正约束值,不增加约束条件个数,实用性强.在某省调的实际应用结果证明了解决方案的有效性.
재편제단기발전계화시,위보증궤조년도、월도합동전량적완성,수요대부분궤조적일발전량진행한정,전능계화안전교정우화계산수요고필저류약속.발전량속능량량강,이안전교정모형중우화변량위궤조출력,속공솔량강,차분시단독립건모,저급인입해약속조성일정곤난.본문종합분석료궤조발전량약속급안전교정계산적특점,제출료일충유효적처리방법,통과수정궤조출력가조정량약속,장발전량약속은함우각월한시단적건모화계산과정중,재안전교정계산완성후자연득도만족.제출료전량분해산법급동태수정보취.해처리방안지수정약속치,불증가약속조건개수,실용성강.재모성조적실제응용결과증명료해결방안적유효성.
When scheduling the short-term power generation, in order to fulfill the units’ annual and monthly contract, some units’ daily generation amount should be constrained. Such constraints should be taken into account when calculating optimal security correction. The generation amount is an energy dimension, but the optimal variables in unit generation is a power dimension and is period-divided modeling, which causes trouble in the introduction of the constraint. Based on the comprehensive analysis of the features of both unit generation amount constraint and security correction model, a novel solution by revising the constraints of adjustable amount of unit generation power is proposed, in which the generation amount constraints are implicit in the period-divided modeling and calculation process and be met naturally when calculation is finished. Two key algorithms, the generation amount decomposition and the dynamic revising, are also proposed in the paper. The solution only modifies the value of constraints, and does not increase the number of constraints, so it has strong practicability. The actual application example achieves expect in a province power dispatching&communication center, as demonstrates the solution be effective.