CAJ | 학술논문

传统预测函数控制算法的基函数是固定的，在控制环境不稳定的情况下控制品质不理想，本文提出一种通过对基函数的自适应选择来改善控制品质。本文根据过程输出值与期望值的误差来选择基函数，将全体误差分为几个区域，每个区域分别对应一个基函数，通过计算误差落选区域来选择对应的基函数。针对混凝投药过程的时滞原因，本文利用软测量方法建立一个混凝投药模型，应用该模型预测过程的输出。Matlab仿真表明此算法具有更好的平稳性和快速响应能力，比传统预测函数控制算法具有更好的控制品质。
전통예측함수공제산법적기함수시고정적，재공제배경불은정적정황하공제품질불이상，본문제출일충통과대기함수적자괄응선택래개선공제품질。본문근거과정수출치여기망치적오차래선택기함수，장전체오차분위궤개구역，매개구역분별대응일개기함수，통과계산오차락선구역래선택대응적기함수。침대혼응투약과정적시체원인，본문이용연측량방법건립일개혼응투약모형，응용해모형예측과정적수출。Matlab방진표명차산법구유경호적평은성화쾌속향응능력，비전통예측함수공제산법구유경호적공제품질。
The traditional algorithm of predictive functional control is fixed. When the control environment is not stable, the control quality of the basis function is not ideal. This paper proposes an adaptive selection algorithm of the basis function to improve the control quality. According to the errors between the output value and the expectation, the base function is selected. All the errors can be divided into several zones, with each zone corresponding to a basis function respectively. Through the calculation of the errors to the areas, the corresponding basis function is selected. For delay reason, this paper establishes a model of coagulant dosage based on soft measurement method in the process of coagulant dosage. The model is applied to forecast the output of the process. Matlab simulation shows that this algorithm has better stability and fast response ability. It has better control quality than the traditional predictive functional control algorithm.