Research on the Pumping Unit Model Driven by Linear Motor

With superior performances, Linear motor driven pumping unit becomes the electrical control of the focus and emphasis of the recent oil field equipment. Against the beam pumping unit motor efficiency, low power factor and stoke that difficult to regulate, this paper proposes new research programs about energy-saving line pumping systems by linear motor driven source. Paper Studys the mechanical model of linear motor in detail, using MATLAB / SIMULINK, a simulation model is analyzed. At the base of vector control of revolving induction motor, we established the linear motor control system. Theoretical analysis and computer simulation results show that the speed control system has good performance, response characteristics of the electromagnetic force, and demonstrate the proposed mathematical model and control method.

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Terminal sliding mode speed control method of permanent magnet synchronous linear motor based on adaptive parameter identification

Advances in Mechanical Engineering ◽

10.1177/16878140211012901 ◽

2021 ◽

Vol 13 (4) ◽

pp. 168781402110129

Author(s):

Zheng Li ◽

Qingshan Zhang ◽

Jinfeng An ◽

Yu Xiao ◽

Hexu Sun

Keyword(s):

Control System ◽

Parameter Identification ◽

Permanent Magnet ◽

Control Method ◽

Sliding Mode ◽

Speed Control ◽

Linear Motor ◽

Terminal Sliding Mode ◽

Adaptive Parameter ◽

Speed Regulator

In order to make the speed adjustment system of the permanent magnet synchronous linear motor more stable and make the convergence performance of the speed control system better, a speed regulator based on the terminal sliding mode algorithm is proposed. In addition, the permanent magnet synchronous linear motor will also be affected by temperature changes during its operation. Aiming to enhance the adaptability of linear motors to parameter changes, a terminal sliding mode speed control idea based on adaptive parameter identification is proposed. The Popov stability theory and the mathematical model of linear motor are used to construct a parameter identification system. The identification flux parameters are used as the control algorithm of the terminal sliding mode speed regulator and the update matching of speed regulator flux parameters and motor system parameters are realized. Through the above algorithm, the performance of the entire speed control system is improved. The results of simulation experiments can illustrate the effectiveness of this control method and its effect on improving the control performance.

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Control System Design of Improved Vertical Lifting Stereo Garage with Linear Motor as Transverse Device

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.416-417.940 ◽

2013 ◽

Vol 416-417 ◽

pp. 940-945

Author(s):

Dong Ru Sun ◽

Xiao Jie Ye ◽

Liang Cheng ◽

Yi Hua Yao ◽

Yun Yue Ye

Keyword(s):

Control System ◽

Induction Motor ◽

Control Method ◽

Frequency Control ◽

Linear Motor ◽

Direct Drive ◽

Drive Unit ◽

Linear Induction Motor ◽

Vehicle Loading ◽

Slip Frequency

Rotating induction motor serving as transverse device in traditional stereo garage makes system complex and inefficient. Installing linear motor in lifting platform as direct drive unit can remove intermediate links and drag vehicle loading board of parking slot directly. In this paper, control system of vertical lifting stereo garage with linear induction motor is put forward, including overall organization, operating principle and software program.Linear motor is controlled by Programmable Logic Controller (PLC) in slip frequency control method and PI algorithm. Experiment results indicate that linear motor can track reference velocitycurveand the whole stereo garage can store and take out vehicles automatically and efficiently.

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Consideration of Multi-Degree of Freedom Vibration on Large-Sized Gantry Type Linear Motor Slider

Journal of Robotics and Mechatronics ◽

10.20965/jrm.2019.p0240 ◽

2019 ◽

Vol 31 (2) ◽

pp. 240-250 ◽

Cited By ~ 1

Author(s):

Tetsuya Ojiro ◽

Toshiyuki Tachibana ◽

Hideki Honda ◽

Hiroshi Hamamatsu ◽

Kazuhiro Tsuruta ◽

...

Keyword(s):

Control System ◽

Modal Analysis ◽

Vibration Suppression ◽

Control Method ◽

Impedance Control ◽

Linear Motor ◽

Repulsive Force ◽

Degree Of Freedom ◽

Past Study ◽

Large Production

Many transport units for large production devices now incorporate large-sized gantry type linear motor sliders comprising two parallel linear sliders linked by a joint table. This type of linear motor slider develops a unique mechanical distortion, generating a repulsive force between the two axes that can raise the motor output forces higher than their rated limit. A previous study proposed a method to suppress the repulsive force. However, as feedback gains are set high, force references oscillate and the control system becomes unstable. In past study, yawing vibration suppression methods have been proposed. But, we consider that this vibration is not yawing vibration because the force references include same phase vibration with high gains. Therefore, the modal analysis is performed to analyze this vibration. As a result, it was found that the pitching vibration of the slider was greatly affected. This paper considers this vibration phenomenon, and suppression of the vibration by control method which is similar to impedance control is presented. Hence, it is shown that considering multi-degree of freedom vibration which means yawing vibration and pitching vibration included is important in order to control the large-sized gantry type linear motor sliders.

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Position Sensorless Control Method for SRM Using Analog Circuit of Type-1 Control System

IEEJ Transactions on Industry Applications ◽

10.1541/ieejias.137.612 ◽

2017 ◽

Vol 137 (8) ◽

pp. 612-621

Author(s):

Satoshi Sumita ◽

Kenta Deguchi ◽

Yoshitaka Iwaji

Keyword(s):

Control System ◽

Analog Circuit ◽

Control Method ◽

Sensorless Control ◽

Position Sensorless

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Control of coagulation process by dual wavelength article analyzer

Water Science & Technology ◽

10.2166/wst.1997.0104 ◽

1997 ◽

Vol 36 (4) ◽

pp. 135-142 ◽

Cited By ~ 2

Author(s):

Norihito Tambo ◽

Yoshihiko Matsui ◽

Ken-ichi Kurotani ◽

Masakazu Kubota ◽

Hirohide Akiyama ◽

...

Keyword(s):

Water Quality ◽

Control System ◽

Predictive Control ◽

Control Method ◽

Feedforward Control ◽

Raw Water ◽

Floc Size ◽

Coagulation Process ◽

Series Of Experiments ◽

Size Data

A coagulation process for water purification plants mainly uses feedforward control based on raw water quality and empirical data and requires operator's help. We developed a new floc sensor for measuring floc size in a flush mixer to be used for floc control. A control system using model predictive control was developed on the floc size data. A series of experiments was performed to confirm controllability of settled water quality by controlling flush mixer floc size. An automatic control with feedback from the coagulation process was evaluated as practical and reliable. Finally this new control method was applied for actual plant and evaluated as practical.

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Independent wheel control system design for highly automated driving

Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering ◽

10.1177/09544070211006525 ◽

2021 ◽

pp. 095440702110065

Author(s):

Shihuan Li ◽

Lei Wang

Keyword(s):

Control System ◽

Control Method ◽

Autonomous Driving ◽

Control System Design ◽

Steering Control ◽

Automated Driving ◽

Accuracy And Precision ◽

Actual Observation ◽

Control Scheme ◽

Interference Measurement

For L4 and above autonomous driving levels, the automatic control system has been redundantly designed, and a new steering control method based on brake has been proposed; a new dual-track model has been established through multiple driving tests. The axle part of the model was improved, the accuracy of the transfer function of the model was verified again through acceleration-slide tests; a controller based on interference measurement was designed on the basis of the model, and the relationships between the controller parameters was discussed. Through the linearization of the controller, the robustness of uncertain automobile parameters is discussed; the control scheme is tested and verified through group driving test, and the results prove that the accuracy and precision of the controller meet the requirements, the robustness stability is good. Moreover, the predicted value of the model fits well with the actual observation value, the proposal of this method provides a new idea for avoiding car out of control.

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Electromagnetic Actuator System Using Witty Control System

Actuators ◽

10.3390/act10030065 ◽

2021 ◽

Vol 10 (3) ◽

pp. 65

Author(s):

Der-Fa Chen ◽

Shen-Pao-Chi Chiu ◽

An-Bang Cheng ◽

Jung-Chu Ting

Keyword(s):

Control System ◽

Control Method ◽

Search Algorithm ◽

Electromagnetic Actuator ◽

Control Performance ◽

Learning Capability ◽

Learning Rates ◽

Agricultural Applications ◽

Actuator System ◽

Rice Milling

Electromagnetic actuator systems composed of an induction servo motor (ISM) drive system and a rice milling machine system have widely been used in agricultural applications. In order to achieve a finer control performance, a witty control system using a revised recurrent Jacobi polynomial neural network (RRJPNN) control and two remunerated controls with an altered bat search algorithm (ABSA) method is proposed to control electromagnetic actuator systems. The witty control system with finer learning capability can fulfill the RRJPNN control, which involves an attunement law, two remunerated controls, which have two evaluation laws, and a dominator control. Based on the Lyapunov stability principle, the attunement law in the RRJPNN control and two evaluation laws in the two remunerated controls are derived. Moreover, the ABSA method can acquire the adjustable learning rates to quicken convergence of weights. Finally, the proposed control method exhibits a finer control performance that is confirmed by experimental results.

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Intelligent Information of TS Fuzzy PID Control System of BLDCM

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.846-847.313 ◽

2013 ◽

Vol 846-847 ◽

pp. 313-316 ◽

Cited By ~ 2

Author(s):

Xiao Yun Zhang

Keyword(s):

Control System ◽

Dynamic Model ◽

Pid Control ◽

Control Method ◽

Design Method ◽

Fuzzy Pid ◽

Fuzzy Pid Control ◽

Control Precision ◽

Simulation Results ◽

Intelligent Information

This paper presented a new method based on the Fuzzy self - adaptive PID for BLDCM. This method overcomes some defects of the traditional PID control. Such as lower control precision and worse anti - jamming performance. It dynamic model of BLDCM was built, and then design method for TS fuzzy PID model is given, At last, it compared simulation results of PID control method with TS Fuzzy PID control method. The results show that the TS Fuzzy PID control method has more excellent dynamic antistatic performances, as well as anti-jamming performance. The experiment shows that TS fuzzy PID control has the stronger adaptability robustness and transplant.

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