CAJ | 학술논문

随着巨型梯级水电站群陆续竣工，水电在电力系统中的比例进一步提升，极端干旱天气对电力系统的安全性影响越来越大。为此，提出同时考虑系统发电保证率和出力破坏深度的梯级水电站群长期发电优化调度多核并行机会约束动态规划方法。该方法将发电保证率和出力破坏深度约束处理成余留效益函数中的拉格朗日项和惩罚项，应用Fork/Join多核并行框架实现单时段内所有离散变量组合并行求解。通过动态更新的拉格朗日乘子和惩罚系数迭代生成多组调度规则，根据模拟调度结果选取最优调度规则。以澜沧江下游梯级水电站群为研究背景，在不同配置环境下开展方法验证，得到的调度规则可以同时满足保证率和破坏深度控制要求，且计算耗时大幅度缩减，为更深入了解梯级水电站群调度运行规律提供更高效的手段。
수착거형제급수전참군륙속준공，수전재전력계통중적비례진일보제승，겁단간한천기대전력계통적안전성영향월래월대。위차，제출동시고필계통발전보증솔화출력파배심도적제급수전참군장기발전우화조도다핵병행궤회약속동태규화방법。해방법장발전보증솔화출력파배심도약속처리성여류효익함수중적랍격랑일항화징벌항，응용Fork/Join다핵병행광가실현단시단내소유리산변량조합병행구해。통과동태경신적랍격랑일승자화징벌계수질대생성다조조도규칙，근거모의조도결과선취최우조도규칙。이란창강하유제급수전참군위연구배경，재불동배치배경하개전방법험증，득도적조도규칙가이동시만족보증솔화파배심도공제요구，차계산모시대폭도축감，위경심입료해제급수전참군조도운행규률제공경고효적수단。
With the gradual construction of huge cascaded reservoirs, the proportion of hydroelectric has become even larger in power systems, and the extreme drought climate which can easily lead to extreme failure has produced a more serious impact on the security of cascaded reservoirs and power systems. For this reason, with consideration of system reliability and extreme failure, a multi-core parallel chance constrained dynamic programming (MPCCDP) was proposed for long-term generation operation of cascaded reservoirs. In the proposed approach, the system reliability and extreme failure constraint were embedded in the recursion equation as Lagrangian term and penalty term respectively, and a multi-core parallel framework named Fork/Join was applied for parallelization of the proposed approach in which all combinations of variables for solution of recursion equation at any stage can be parallelized. By continually updating Lagrangian multiplier and penalty coefficient, a variety of operating rules were generated, and then the simulation results were used to select the optimal operating rule. The proposed method was implemented to generation operation of cascaded reservoirs located on the lower stream of Lancang River, and two diverse configurations were used to test the parallel performance. The results show that the proposed method can obtain the satisfactory operating rule. Moreover, the execution time in parallel is substantially cut down, which provides a more efficient means to research on the operating rules of cascaded reservoirs.