【作者】 杨光军；

【导师】 刘吉臻；

【作者基本信息】 华北电力大学（河北） ， 控制理论与控制工程， 2004， 硕士

【摘要】 本文改进了国内热力发电厂现有的负荷优化分配方法:提出了将有约束最小化的非线性规划思想应用于厂级负荷优化分配系统,这为将来综合考虑电厂多目标优化问题打下了基础;深入探讨了煤耗特性曲线的拟合取点问题,使得拟合结果满足优化计算求得全局最优解的要求;在Visual Basic编程中引入COM组件MatrixVB,极大简化了实现过程。首先选定煤耗量作为优化的唯一目标函数,并通过合理拟合各机组煤耗特性曲线,得到系统的非线性模型;然后应用等微增和非线性规划两种算法,仿真比较其优化结果;最终用Visual Basic编制两个具体的工程软件,使得本文的研究得以应用于实践。实践证明,本文所讨论的负荷优化分配思路具有更高的准确性和可行性,有着良好的应用前景。更多还原

【Abstract】 The method of plant load optimal distribution system is improved in the thesis. The constrained optimization, which belongs to the non-linear programming, has been proposed to used in plant load optimal distribution system. It avails to the research of the multiobjective optimization in the power plant. In order to get the global-optimal result, we discussed the collecting-dot for fitting the curve of coal consumption. The MatrixVB ,which combine the features of Matlab and Visual Basic, is used to abbreviate the procedure greatly.Firstly, the coal consumption is selected as the only objective function. We fitted the curve of each coal consumption and got the nonlinear model of the whole system. Then, the equal incremental principle and non-linear Programming is simulated on the plant load optimal distribution. Finally, two procedure is designed to accomplish the research actually. It proved that the research has better accuracy and better feasibleness. It has expansive foreground of application. Yang Guangjun(Control Theory and Control Engineering) Directed by Prof.Liu Jizhen更多还原