Article ; Online: A software and hardware design scheme of intelligent valve positioner
E3S Web of Conferences, Vol 268, p
2021 Volume 01067
Abstract: Valve positioner is the core component of the pneumatic control valve. A new software and hardware design scheme of intelligent valve positioner is presented in this paper. The circuit composition of each part of the intelligent valve positioner is ... ...
Abstract | Valve positioner is the core component of the pneumatic control valve. A new software and hardware design scheme of intelligent valve positioner is presented in this paper. The circuit composition of each part of the intelligent valve positioner is introduced in hardware part. Based on it, a hardware solution to realize HART ‘multi-point’ communication is proposed in this research. In the software design, a novel combined PID control algorithm is proposed to solve the nonlinear problem caused by the friction between the valve stem and the packing during the control process. Simulation results show that the method proposed in this paper is better than traditional PID method and fuzzy PID method. The software and hardware design scheme of the valve positioner proposed in this paper has certain guiding significance for the development of related products. |
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Keywords | valve positioner ; pneumatic control valve ; combined pid ; hart ; nonlinear control ; Environmental sciences ; GE1-350 |
Subject code | 621 |
Language | English |
Publishing date | 2021-01-01T00:00:00Z |
Publisher | EDP Sciences |
Document type | Article ; Online |
Database | BASE - Bielefeld Academic Search Engine (life sciences selection) |
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