| Cao Xiaoming(曹晓明)*,Yao Jing* **,Sha Tong*,Wang Pei*.[J].高技术通讯(英文),2020,26(2):224~234 |
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| Control performance and energy saving of multi-level pressure switching control system based on independent metering control |
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| DOI：doi：10.3772/j.issn.1006-6748.2020.02.013 |
| 中文关键词: |
| 英文关键词: multi-level pressure, independent metering control, displacement control, energy saving, hydraulic switching system |
| 基金项目: |
| Author Name | Affiliation | | Cao Xiaoming(曹晓明)* | (*College of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, P.R.China) | | Yao Jing* ** | (*College of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, P.R.China)
(**School of Mechanical Engineering, Nanjing Institute of Technology, Nanjing 210000, P.R.China) | | Sha Tong* | (*College of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, P.R.China) | | Wang Pei* | (*College of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, P.R.China) |
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| 中文摘要: |
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| 英文摘要: |
| Aiming at the problem of large energy consumption in hydraulic control system with large load and variable working conditions, based on the multi-level pressure switching control system (MPSCS), a multi-level pressure switching control system based on independent metering control is proposed combined with the independent metering control technology. The configuration principle of the system is given, the mathematical model of this system is established, and the control strategy of the system under 4 different working quadrants is put forward. Finally, the control performance and energy saving characteristics of the system are tested. The test results show that the switching of high and low pressure power supply has a certain effect on the response of step position and ramp position under impedance working condition. The displacement curves show slow climbing or abrupt change of ramp position, and the position accuracy is less than 1 mm. The multi-level pressure switching control system based on independent metering control can recover and store energy under the transcendence working conditions. The control accuracy is about 1 mm, and the energy recovery rate is about 70%~80%. |
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