| 开关变换器的新型非线性离散控制方法(英) |
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| 引用本文： | 吴爱国. 开关变换器的新型非线性离散控制方法(英)[J]. 天津大学学报(英文版), 1999, 0(1) |
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| 作者姓名： | 吴爱国 |
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| 作者单位： | 天津大学电气自动化与能源工程学院 |
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| 摘 要： | 针对开关变换器，基于高频、大信号离散时间模型，应用动态规划的原理，研究了一种非线性离散时间的控制方法．在一个开关周期内，以周期末输出电压偏差最小为目标确定最优导通比；为保证全局范围内调节性能最好，设计了能量函数对导通比进行校核和修正；进一步将一个开关周期的输出电压偏差最小与能量校校依不同调节范围按不同比例进行组合，得到了完整的目标函数．由该目标函数可根据初始状态和性能指标实施快速准确的控制．
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| 关 键 词： | 开关变换器 非线性 离散 模型 控制 |
DESIGN OF A NOVEL NONLINEAR DISORETE-TIME CONTROLMETHOD FOR SWITOHING OONVERTERS |
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| WU Aiguo ,ZHANG Tao, YUAN Hao, HUANG Ruixiang. DESIGN OF A NOVEL NONLINEAR DISORETE-TIME CONTROLMETHOD FOR SWITOHING OONVERTERS[J]. Transactions of Tianjin University, 1999, 0(1) |
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| Authors: | WU Aiguo ZHANG Tao YUAN Hao HUANG Ruixiang |
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| Abstract: | Based on the high frequency and large signal discrete-time model for switching converters,a nonlinear discrete-time control method is designed on the principle of dynamic programming. In one switch period the optimal duty ratio is got in accordance with a minimum error of the output voltage,then the duty ratio is checked and regulated with the energy function in order to make the global performance best. In thisway the complete objective function is obtained. Based on the objective function,the fast and accurate control effect is accomplished. |
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| Keywords: | switching converter control nonlinear discrete |
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