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The Closed-loop Control Strategy for Precise Low Pressure of Powder Pressing Equipment
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- 발행기관
- 보안공학연구지원센터(IJCA) 바로가기
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- 간행물
- International Journal of Control and Automation SCOPUS 바로가기
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- 통권
- Vol.9 No.11 (2016.11)바로가기
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- 페이지
- pp.407-420
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- 저자
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- 언어
- 영어(ENG)
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- URL
- https://www.earticle.net/Article/A290846
※ 원문제공기관과의 협약기간이 종료되어 열람이 제한될 수 있습니다.
원문정보
초록
- 영어
- The multistage compression is usually adopted for large tonnage powder pressing equipment to improve product quality. The first compression is the key process during the powder processing as the target pressure is small and the load is great fluctuant. The pressure in the first compression is likely to be much overshot that makes laminated products if conventional control strategy is applied. The control parameters of routine mode have bad adaptation because they change with the target pressure. In order to improve the accuracy of the pressure and adaptability of control parameters in the first compression, one strategy oriented to engineering application that includes data testing, parameter setting and control optimizing has been proposed. Real-time monitoring system with multi-channels based on LabVIEW is built, and the full-state of equipment can be acquired based on the system. The working statuses of control elements during the pressing process due to inertial force are optimized with the experimental data, and the segmented variable gain control strategy based on parameterization is developed and applied. The experimental results with the strategy during the first compression indicate that the pressure precision is raised from 0.3MPa and above (conventional opened-loop control) to 0.05MPa and below, and the pressing time is controlled in 300ms and below. The control strategy ensures the high accuracy and efficiency of pressing process and it is convenient to be applied in engineering.
목차
Abstract
1. Introduction
2. Working Principle
3. Mathematical Model
4. The Design of the Monitoring System
4.1. The Hardware Design of Monitoring System
4.2. The Software Design of Monitoring System
5. Experimental Results
5.1. Control Objective
5.2. Classical Open-Loop Control
5.3. Optimization of Inertia Compressing Action and Constant Proportion Close-Loop Control
5.4. Segmented Variable Gain Control Strategy Based On Parameterization
6. Conclusions
References
키워드
Powder pressing electro-hydraulic control pressure closed-loop data acquisition segmented variable gain저자
간행물 정보
발행기관
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- 발행기관명
- 보안공학연구지원센터(IJCA) [Science & Engineering Research Support Center, Republic of Korea(IJCA)]
- 설립연도
- 2006
- 분야
- 공학>컴퓨터학
- 소개
- 1. 보안공학에 대한 각종 조사 및 연구 2. 보안공학에 대한 응용기술 연구 및 발표 3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최 4. 보안공학 기술의 상호 협조 및 정보교환 5. 보안공학에 관한 표준화 사업 및 규격의 제정 6. 보안공학에 관한 산학연 협동의 증진 7. 국제적 학술 교류 및 기술 협력 8. 보안공학에 관한 논문지 발간 9. 기타 본 회 목적 달성에 필요한 사업
간행물
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- 간행물명
- International Journal of Control and Automation
- 간기
- 월간
- pISSN
- 2005-4297
- 수록기간
- 2008~2016
- 십진분류
- KDC 505 DDC 605
이 권호 내 다른 논문 / International Journal of Control and Automation Vol.9 No.11
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