发电动态经济调度的有效响应能力调整量算法

A VALID RESPONSE ABILITY ADJUSTING AMOUNT-BASED ALGORITHM FOR DYNAMIC ECONOMIC DISPATCH IN POWER GENERATION

对基于前瞻技术和响应能力解耦的动态经济调度算法中的机组进行了精确分类,给出最大有效响应能力调整量的概念。分析了快速机组、临界机组和慢速机组补偿响应能力的作用特点,指出现有算法的不足。基于有效响应能力调整量提出一种新的动态经济调度算法,该算法以静态优化调度结果为基础,采用“在最大有效响应能力调整量范围内,快速机组向临界机组过渡、慢速机组向临界机组过渡”的调整原则进行二次经济调度。分析表明,该算法具有动态前瞻机制、可一次精确完成响应能力缺额补偿、迭代次数少、计算效率高等特点。算例证实了算法的可行性。

The units in the look-ahead technique and response ability decoupling technique-based heuristic dynamic economic dispatch algorithms are exactly classified and the notation of maximum valid response ability adjusting amount is defined. The characteristics of the fast units, critical units and slow units are analyzed in detail. The potential limitations in the existing algorithms are pointed out. A new dynamic economic dispatch feasible solution algorithm based on the proposed valid response ability adjusting amount has been developed. According to the optimal dispatch results in the first optimization phase via static economic dispatch, the adjustment principles that the fast units should change to critical ones and the slow units to critical ones within the maximum valid response ability adjusting amount are adopted in the second optimization phase. Thus, the response ability deficiency can be precisely compensated just once. The algorithm obtained has not only the features of dynamic look-ahead, but also a smaller iteration number and a higher computational efficiency. The feasibility of the new algorithm is proved by examples.