Transactions of Materials and Heat Treatment

Title：Research on control system of smart rotating speed sensing for hydraulic machine

Authors： Wang Quangang Cheng Lianglun Liu Siliang

Unit： Guangdong University of Technology

KeyWords： hydraulic machine PID control variable frequency control load limit control

ClassificationCode：

year,vol(issue):pagenumber：2015,40(1):76-80

Abstract：

For the common phenomenon of hydraulic machine that the running power in production is greater than its need and there is a serious waste of energy when running without load and reactive power during power frequency state, a control method of the speed intelligent sensing control for a hydraulic machine motor was proposed based on load limit control principle. When PID control strategy based on PLC was applied in the hydraulic machine motor frequency control, the large inertia, highly nonlinear, large delay and other unfavorable phenomenon existed in hydraulic machine operating cycle with varied load were overcome. The results of testing show that energy saving is up to 25%, and the rotating speed change of motor variable frequency is more smooth, which improves system stability and meets the requirements of real-time adjustment of hydraulic machines in changing load conditions.

Funds：

2012年广东省产学研结合项目“大中型智能控制高效节能油压机床的研发及产业化”(20120980)

王全刚（1990-），男，硕士研究生

Reference：

［1］朱钒,张志,张道富，等.国内外液压机技术现状及发展趋势[J］.机床与液压,2000,28(1):6-7.Zhu F, Zhang Z, Zhang D F ,et al. Status and development trend of hydraulic machine technology home and abroad [J］.Machine & Hydraulics, 2000,28(1):6-7.

［2］Zheng J, Zhao S, Wei S. Application of self-tuning fuzzy PID controller for a SRM direct drive volume control hydraulic press[J］. Control Engineering Practice, 2009, 17 (12): 1398-1404.

［3］Xia L, Xiao Y, Li G S, et al. Research of new servo-hydraulic press based on the AC servo motor control[J］. Key Engineering Materials, 2012, 522: 542-545.

［4］姚静，郭悦，张哲.高速组合油压机冲盂过程减速特性仿真研究[J］.锻压技术，2013,38（5）：110-114.Yao J, Guo Y, Zhang Z. Simulation study on punching process deceleration characteristics of high speed combined hydraulic press[J］. Forging & Stamping Technology, 2013,38（5）：110-114.

［5］赵青,唐省名.油压机回油冲击产生的原因及解决措施[J］.液压与气动,2011,(5)：94-96.Zhao Q, Tang S M .The causes and solutions of return flow shock for hydraulic press[J］. Hydraulic & Pneumatics, 2011,(5)：94-96.

［6］姚静.锻造油压机液压控制系统的关键技术研究[D］.秦皇岛：燕山大学，2008.Yao J. Research on Key Technology of Hydraulic Control System in Forging Oil Press[D］.Qinhuangdao: Yanshan University, 2008.

［7］尚涛,赵丁选,肖英奎,等.液压挖掘机功率匹配节能控制系统[J］.吉林大学学报：工学版,2004,34(4):592-596.Shang T, Zhao D X, Xiao Y K, et al. Power matching for energy-saving control system of hydraulic excavators[J］. Journal of Jilin University：Engineering and Technology Edition,2004,34(4):592-596.

［8］刘东汉. 基于PLC的铜管退火炉PID温度控制系统[J］ .长春工业大学学报：自然科学版,2004,3（1）：52-54.Liu D H. PID temperature-controlled system in brass pipe annealing stove based on PLC [J］. Journal of Changchun University of Technology:Natural Science Edition, 2004,3（1）：52 -54.

［9］刘品潇.电气控制与PLC[M］.长沙:国防科技大学出版社,2009.Liu P X. Electrical Control and PLC[M］. Changsha: National Defense University Publishing House, 2009.

［10］张厥盛,郑继禹,万心平.锁相技术[M］.西安:西安科技大学出版社,1996.Zhang J S, Zheng J Y, Wan X P. Phase-locked Technology[M］. Xi′an: Xi′an University of Science and Technology Publishing House, 1996.

Service：

【This site has not yet opened Download Service】【Add Favorite】