CAJ | 학술논문

对于多扰动动态下的线性时不变控制器的性能评价进行了研究.针对系统具有多个扰动动态的情况,提出了一种新的控制器件能评价方法.这一方法构建了一个加权的性能指标,权值与不同扰动的种类和优先级相对应.同时该方法可以明确计算出各个扰动的结构闭环输出方差的下限值.通过为不同的扰动选取适当的权值和方差范围,可以计算得出最优的输出方差.将这一最优方差值作为基准就可以评价实际生产系统的控制性能.仿真例子表明了该方法的有效性.
대우다우동동태하적선성시불변공제기적성능평개진행료연구.침대계통구유다개우동동태적정황,제출료일충신적공제기건능평개방법.저일방법구건료일개가권적성능지표,권치여불동우동적충류화우선급상대응.동시해방법가이명학계산출각개우동적결구폐배수출방차적하한치.통과위불동적우동선취괄당적권치화방차범위,가이계산득출최우적수출방차.장저일최우방차치작위기준취가이평개실제생산계통적공제성능.방진례자표명료해방법적유효성.
This paper focuses on performance assessment of linear time-invariant controller subject to multi-disturbance dynamics. A new method of performance assessment for the system subject to multi-disturbance dynamics is proposed. A weighted performance index is introduced, which weights each disturbance to suggest the type and the preference to each of them. Also, the exact output variance lower limit of the structured closed-loop response for each disturbance can be obtained. Once the weights and variance limits are determined, the optimum value of the variance can be calculated. The optimum variance can be used as a benchmark to assess the control performance of the actual system. Simulation results show the validity of the proposed method.