CAJ | 학술논문

引入两模态马尔科夫链随机PWM策略到DCM Boost变换器，推导建立了变换器的离散随机跳变模型，并基于随机跳变系统非脆弱H∞控制理论为Boost变换器设计了非脆弱H∞控制器，利用Simulink软件平台设计仿真电路进行验证。仿真分析表明，设计的控制器改善了Boost变换器的EMI品质，对控制器参数摄动表现出非脆弱性，使整个变换器系统具有较好的鲁棒性。
인입량모태마이과부련수궤PWM책략도DCM Boost변환기，추도건립료변환기적리산수궤도변모형，병기우수궤도변계통비취약H∞공제이론위Boost변환기설계료비취약H∞공제기，이용Simulink연건평태설계방진전로진행험증。방진분석표명，설계적공제기개선료Boost변환기적EMI품질，대공제기삼수섭동표현출비취약성，사정개변환기계통구유교호적로봉성。
The two-state-Markov-chain random pulse width modulation (PWM) scheme was introduced into the DCM Boost converter. This paper derived the random discrete-time jumping model of the converter and designed the non-fragile H∞ con-troller based on non-fragile H∞ control theory of stochastic jumping system. The simulation was done to check the validity of non-fragile H∞controller on the Simulink platform. The simulation analysis indicates that the designed controller has improved the EMI quality of Boost converter along with non-fragility to its parameters uncertainty, and with better robust for the whole converter system.