中文摘要：

蒸汽动力系统多周期运行燃料消耗量的计算方法通常先建立蒸发量与效率的关系模型,再由能量平衡方程得出。为简化计算,建立蒸发量和燃料量关系的双燃料锅炉数学模型。提出背压式、抽背式汽轮机调优规则：如果需要同时运行两台以上相同型号的汽轮机,则优先最大负荷运行数学模型斜率大的汽轮机,斜率相等则任意分配负荷。汽轮机调优规则扩展到燃料量和蒸发量呈线性关系的单燃料锅炉负荷分配：如果一次项系数相等,则蒸发量任意分配。否则,最大负荷运行斜率小的锅炉。针对粒子群算法收敛速度慢、早熟的缺点,提出惯性权重对数递减策略的粒子群算法。采用改进的粒子群算法对建立的蒸汽动力系统运行优化调度的混合整数非线性规划模型进行求解,节约了运行成本,验证了算法的有效性和实用性。

英文摘要：

The fuel consumption calculation method in multi-period steam power system can be established the relationship model between evaporation and efficiency then calculated with energy balance equation. In order to simplify the calculation, a mathematical model of dual fuel boiler is put forward based on relationship between evaporation and fuel quantity. The adjustment rules of back pressure turbine and back pressure extraction turbine are put forward. If you need to run two more than the same type of turbine at the same time, the maximum load operation and the slope of the mathematical model of the turbine should be a priority. Slope equality then arbitrary allocation load. Steam turbine tuning rule extension to the single fuel boiler load distribution. And fuel quantity and the evaporation capacity of single fuel boiler is a linear relationship. If one-order term coefficient is equal, evaporation arbitrary distribution. Otherwise, the maximum load running small slope of boiler. An improved particle swarm optimization（PSO） with Inertia weigh and logarithmic decrement are put up because of slower convergence rate and premature in PSO. The operation cost could be saved, the validity and practicability of algorithm and the correctness of the optimization rules are verified by using the improved PSO for solving mixed integer nonlinear programming model of steam power system optimal scheduling.