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In the field of process control, there are cases where the control performance becomes inferior due to the change of surrounding environment. On the other hand, the best control performance is required from the viewpoint of high-quality and energy saving. Therefore, it is important to monitor the process state and evaluate the control performance. The scheme based on minimum variance control (MV-Index)...
This study discusses a design method for controlling a weigh feeder which has been employed to dispense material at a specified rate. In this study, a proportional-integral (PI) control law is designed based on a generalized minimum variance control (GMVC) law. The control performance of the designed control system is evaluated using a minimum variance index. Based on the evaluated control performance,...
This paper proposes the switching control method based on the controller performance assessment. The switching mechanism is based on the estimated controller performances of all prepared candidate controllers. The accepted controller must have the best estimated performance of all controllers. Each controller performance is estimated by the gain of the controllers. Finally, the effectiveness of the...
This paper considers control scheme for the the DC-DC converters with Electric Double-Layer Capacitor. The applied control method is switching control method based on the controller performance assessment. The reference value of DC-DC converter is given as the steady value. So, the control performance index based on the steady state is effective. Finally, the practically and utility of this idea are...
The idea of control performance assessment is becoming very important in the process control area. One of the first performance monitoring index was based on the minimum variance control benchmark based method proposed by Harris. This paper proposes the switching control method based on the controller performance assessment. Finally, experimental result demonstrate the practically and utility of this...
In the challenge to manufacture high quality products for less, it is necessary to regularly monitor performance of control loops that regulate the quality variables of interest. This paper describes performance-adaptive PID control schemes which is based on a unified approach to the design of a control performance and PID controller. According to the proposed approach, the control performance is...
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