系统仿真学报 ›› 2017, Vol. 29 ›› Issue (9): 2081-2086.doi: 10.16182/j.issn1004731x.joss.201709027

• 仿真系统与技术 • 上一篇    下一篇

基于多目标遗传算法的过热汽温建模与仿真

吴振龙1, 何婷1, 王灵梅2, 贾峰生3, 杨云凯4, 吴海曙4, 李东海1*, 韩磊2   

  1. 1.清华大学 热能系 电力系统国家重点实验室,北京 100084;
    2.山西大学 工程学院,山西 太原 030013;
    3.国网山西省电力公司电力科学研究院,山西 太原 030001;
    4.大同煤矿集团同达热电有限公司,山西 大同 037001
  • 收稿日期:2017-05-20 发布日期:2020-06-02
  • 作者简介:吴振龙(1992-),男,河南商丘,博士生,研究方向为火电机组建模与自抗扰控制;何婷(1992-),女,四川巴中,博士生,研究方向为分布式能源系统建模与自抗扰控制。
  • 基金资助:
    山西省煤基重点科技攻关项目(MD2014-07)

Modeling and Simulation of Superheated Steam Temperature Based on Multi-objective Genetic Algorithm

Wu Zhenlong1, He Ting1, Wang Lingmei2, Jia Fengsheng3, Yang Yunkai4, Wu Haishu4, Li Donghai1*, Han Lei2   

  1. 1. State Key Laboratory of Thermal Power System, Tsinghua University, Beijing 100084, China;
    2. School of Engineering, Shanxi University, Taiyuan 030013, China;
    3. State Grid Shanxi Electric Power Research Institute, Taiyuan 030001, China;
    4. Datong Coal Mine Group Tongda Thermal Power Co., Ltd., Datong 037001, China
  • Received:2017-05-20 Published:2020-06-02

摘要: 基于过热汽温的分布参数模型,采用高阶惯性传递函数进行逼近。为分析串级回路中导前区、惰性区模型阶次对辨识精度的影响和得到高阶惯性传递函数的动态参数,根据电厂实际运行的数据,采用多目标遗传算法对模型参数进行优化和仿真。通过分析仿真可知,阶次在合理的范围时阶次越高时帕累托前锋面越靠前,辨识具有更高的精确度。考虑实际需求与精度的要求,建立该机组过热汽温系统的串级模型

关键词: 过热汽温模型, 串级系统, 多目标遗传算法, Pareto最优解集

Abstract: The high order inertial transfer functions were used to approximate the distribution parameter model. In order to compare the influence of the order of the leading region and the inertia object model on the accuracy and get the dynamic parameters, the multi-objective genetic algorithm was used to optimize the model parameters according to the actual operation data of the power plant. The higher the order, the Pareto front moves forward and recognizes the higher accuracy by the simulation when the orders are in a reasonable range. The reasonable superheated steam temperature system model was established considering the engineering and accuracy requirements.

Key words: superheated steam temperature model, cascade system, multi-objective genetic algorithm, Pareto optimal solution set

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