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Synthesis of dissipative nonlinear controllers for series resonant DC/DC converters

机译:串联谐振DC / DC转换器耗散非线性控制器的合成

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摘要

This paper describes analytical advances and practical experiences in a nonlinear controller design methodology for series resonant DC/DC converters. The control goal is to maintain the output voltage (which is the only measured variable) in the presence of large-load perturbations by varying the switching frequency. The proposed methodology utilizes large-scale, nonlinear switched, and generalized averaged models, and the resulting closed-loop system is exponentially convergent under typical operating conditions. The designer has a direct handle over the convergence rate, and the nonlinear controller requires only the usual output voltage measurements, while the load variations are estimated. The control structure allows for variations in both resistive and current loads. The dissipativity-based nonlinear controller is implemented in affordable analog circuitry and evaluated experimentally
机译:本文介绍了串联谐振DC / DC转换器的非线性控制器设计方法中的分析进步和实践经验。通过改变开关频率,控制目标是在存在大负载扰动时维持输出电压(即唯一测量的变量)。所提出的方法采用大规模,非线性切换和广义平均模型,并且在典型的操作条件下,所得到的闭环系统是指数增长的。设计者通过收敛速度直接处理,并且非线性控制器仅需要通常的输出电压测量,而估计负载变化。控制结构允许电阻和电流负载的变化。基于耗散性的非线性控制器在实验性的模拟电路中实现并通过实验评估

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