CAJ | 학술논문

由于日前风电预测存在较大误差，采用日内滚动发电计划消纳风电波动性已成为业内的共识。然而，在我国现行的“三公”调度模式下，日内滚动发电计划须考虑电量完成进度的滚动协调和风电消纳成本的控制。为此，提出了日内滚动发电计划的2种实现模式，即电量完成进度滚动协调模式和风电消纳成本控制模式。针对电量完成进度滚动协调模式，提出了目标电量日内滚动计算模型，滚动修正剩余时段机组目标电量，并以该目标电量为约束实现机组电量完成进度的滚动协调，提升了发电调度的公平性。针对风电消纳成本控制模式，在调度模型中增加了风电消纳成本控制的约束条件，以决策可接受消纳成本下的弃风电量，在出现概率较大的风电波动区间内，以合理成本消纳风电。文章建立了统一的全景日内滚动发电计划模型，能够在跟踪日前计划的基础上，通过约束条件的选择，分别适应2种模式下滚动发电计划的编制。算例分析表明，提出的模型与方法能够满足2种模式所期望的目标，实现公平与成本控制的风电消纳。
유우일전풍전예측존재교대오차，채용일내곤동발전계화소납풍전파동성이성위업내적공식。연이，재아국현행적“삼공”조도모식하，일내곤동발전계화수고필전량완성진도적곤동협조화풍전소납성본적공제。위차，제출료일내곤동발전계화적2충실현모식，즉전량완성진도곤동협조모식화풍전소납성본공제모식。침대전량완성진도곤동협조모식，제출료목표전량일내곤동계산모형，곤동수정잉여시단궤조목표전량，병이해목표전량위약속실현궤조전량완성진도적곤동협조，제승료발전조도적공평성。침대풍전소납성본공제모식，재조도모형중증가료풍전소납성본공제적약속조건，이결책가접수소납성본하적기풍전량，재출현개솔교대적풍전파동구간내，이합리성본소납풍전。문장건립료통일적전경일내곤동발전계화모형，능구재근종일전계화적기출상，통과약속조건적선택，분별괄응2충모식하곤동발전계화적편제。산례분석표명，제출적모형여방법능구만족2충모식소기망적목표，실현공평여성본공제적풍전소납。
In view of the fair-sized error of day-ahead wind power prediction, it become the common view in the electricity industry to adopt intraday rolling scheduling to accommodate the fluctuation of wind energy. In current environment of carrying out the“open, just and fair” dispatching mode in China, in the intraday rolling scheduling the rolling coordination of the completion schedule of the generated energy and the control of the cost for accommodating wind power must be considered. For this purpose, two modes to implement the intraday rolling scheduling, namely the rolling coordination mode of the completion schedule of the generated energy and the control mode of the cost for accommodating wind power, are proposed. As for the former mode, an intraday rolling calculation model for target energy is put forward to modify target energy in residual time intervals in rolling way, and this target energy is taken as the constraint to implement the rolling coordination of completion schedule of unit energy, so that every unit can achieve almost the same energy completion rate and the fairness of generation scheduling is improved;as for the latter mode, the constraint for controlling the cost of accommodating wind power is added in the dispatching model to determine the energy due to wind power curtailment under acceptable accommodation cost, so within the fluctuation range with high occurrence probability the wind power can be accommodated by reasonable cost. Based on above-mentioned two modes, a full scenario intraday rolling scheduling model is proposed, and on the basis of tracking the day-ahead scheduling and through the selection of constraint conditions this model can make rolling schedulings that are suitable to the two modes respectively. Case study results show that the proposed method can achieve the desired objectives of the two modes and implement wind power accommodation under both fair dispatching and cost control.