| 用遗传算法建立连续系统低阶近似模型的方法及其在电机控制中的应用 |
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| 引用本文： | 程仁洪,涂莑生. 用遗传算法建立连续系统低阶近似模型的方法及其在电机控制中的应用[J]. 南开大学学报(自然科学版), 1997, 0(2) |
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| 作者姓名： | 程仁洪 涂莑生 |
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| 作者单位： | 南开大学计算机与系统科学系!天津，300071 |
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| 摘 要： | 基于高阶非线性系统的阶跃响应数据，用遗传算法寻找最优参数，直接得到便于工程设计和分析的低阶线性连续系统模型．首先讨论了遗传算法及其改进方法，然后分析低阶系统参数变化范围的自动修改规则和建模方法，最后建立了交流电机调速系统的低阶近似模型．
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| 关 键 词： | 连续系统 遗传算法 交流电机 低阶模型 |
A METHOD TO BUILD LOW-ORDER APPROXIMATE MODEL OF CONTINUOUS SYSTEMS BY USING GENETIC ALGORITHM AND ITS APPLICATION TO MOTOR VARIABLE SPEED SYSTEMS |
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| Cheng Renhong, Tu Fengsheng. A METHOD TO BUILD LOW-ORDER APPROXIMATE MODEL OF CONTINUOUS SYSTEMS BY USING GENETIC ALGORITHM AND ITS APPLICATION TO MOTOR VARIABLE SPEED SYSTEMS[J]. Acta Scientiarum Naturalium University Nankaiensis, 1997, 0(2) |
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| Authors: | Cheng Renhong Tu Fengsheng |
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| Abstract: | ow--order linear systems are convenient for engineering design and analysis. This paper presents a method to build low--order linear models of high-order nonlinear systems.The method is based on the step response data of high-order nonlinear system and uses genetic algorithm to search the optimal parameters. First, the genetic algorithm and thewaysto improve it are discussed; Then, the modeling methods and the rules to alter theparameter ranges are presented; At last, a low-order approximate model of AC motorvariable speed systems is obtained by using the presented method. |
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| Keywords: | continuous system genetic algorithm AC motor low-order model |
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