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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yinghua Song Yunkuan Wang Li Gong Yan Yang |
| Copyright Year | 2007 |
| Description | Author affiliation: Chinese Acad. of Sci., Beijing (Yinghua Song; Yunkuan Wang; Li Gong; Yan Yang) |
| Abstract | The heater of injection molding machine's cylinder is composed of several zones which spread along the cylinder's axis. There are strong coupling effects among the zones. To avoid computing-intensive decoupling matrices, we treat every zone as an independent nonlinear time-varying second-order system and compensate them with a proposed self-turning PID controller separately. Due to the self-turning PID controller must include some kind of parameter estimation algorithm, the recursive instrumental variable method (RIV) is employed to avoid computing noise model of objects and ensure the consistent progressive convergence of model parameters in the environment with non-white noise. In addition, we introduce the forgetting factor to modify the RIV method to keep the online continuing identifiable capability for time-varying parameters. It has validated that this controller has better stability, high accuracy and good adaptability to the variety of environmental conditions and cylinder specification in the factory. |
| Starting Page | 559 |
| Ending Page | 559 |
| File Size | 118043 |
| Page Count | 1 |
| File Format | |
| ISBN | 0769528821 |
| DOI | 10.1109/ICICIC.2007.124 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-09-05 |
| Publisher Place | Japan |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Programmable control Parameter estimation Time varying systems Three-term control Working environment noise Injection molding Nonlinear control systems Control systems Temperature control Adaptive control |
| Content Type | Text |
| Resource Type | Article |
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