A switched energy saving position controller for variable-pressure electro-hydraulic servo systems
| Autor: | Mohammad Zareinejad, S. Mehdi Rezaei, Keivan Baghestan, Ali Tivay |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Engineering
business.industry Applied Mathematics Energy consumption Servomechanism Stability (probability) Computer Science Applications law.invention Variable (computer science) Control and Systems Engineering Control theory law Position (vector) Control system Electrical and Electronic Engineering business Instrumentation Energy (signal processing) |
| Zdroj: | ISA Transactions. 53:1297-1306 |
| ISSN: | 0019-0578 |
| DOI: | 10.1016/j.isatra.2014.04.010 |
| Popis: | The electro-hydraulic servo system (EHSS) demonstrates a relatively low level of efficiency compared to other available actuation methods. The objective of this paper is to increase this efficiency by introducing a variable supply pressure into the system and controlling this pressure during the task of position tracking. For this purpose, an EHSS structure with controllable supply pressure is proposed and its dynamic model is derived from the basic laws of physics. A switching control structure is then proposed to control both the supply pressure and the cylinder position at the same time, in a way that reduces the overall energy consumption of the system. The stability of the proposed switching control system is guaranteed by proof, and its performance is verified by experimental testing. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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