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Thematische Bibliographien / Speed and position regulation / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „Speed and position regulation“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 29. Juli 2025

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1

Patil, Navendu S., Jonathan B. Dingwell, and Joseph P. Cusumano. "Task-level regulation enhances global stability of the simplest dynamic walker." Journal of The Royal Society Interface 17, no. 168 (2020): 20200278. http://dx.doi.org/10.1098/rsif.2020.0278.

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Much remains unknown about how considerations such as stability and energy minimization shape the way humans walk. While active neuromotor control keeps humans upright, they also need to choose from multiple stepping regulation strategies to achieve one or more task goals, such as maintaining a desired speed or direction. Experiments on human treadmill walking motivate an important question: why do humans prefer one task-level regulation strategy over another—perhaps to enhance their ability to reject large disturbances? Here, we study the relationship between task-level regulation and global

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JIN, Bo. "Energy-regulation based variable speed hydraulic cylinder position control system." Chinese Journal of Mechanical Engineering 44, no. 01 (2008): 25. http://dx.doi.org/10.3901/jme.2008.01.025.

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3

Fan, Na, Zhi Quan Deng, Xiao Yuan Chen, Yu Yang Mao, and Pei Lin Xu. "Speed Closed-Loop Control for Switched Reluctance Motor with Segmental Rotors Based on Angle Position Regulation." Advanced Materials Research 433-440 (January 2012): 6789–94. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.6789.

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This paper describes the structure and the magnetic circuit of switched reluctance motor with segmental rotors (SSRM), and presents the control strategy of speed closed-loop by regulating the turn-on angle of the main switches in the power converter based on PI algorithm. The turn-off angle is optimized according to different speeds of the motor. The deviation of the rotor speed is the input control parameter of PI controller, and the turn-on angle is the output control parameter. The strategy of current chopping control is used for comparing with angle position control when rotor speed is hig

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Cai, Feng, Ke Li, and Xiaodong Sun. "Speed Sensorless Control Based on Initial Rotor Position Detection for EESM." Mathematical Problems in Engineering 2022 (January 12, 2022): 1–15. http://dx.doi.org/10.1155/2022/2638858.

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Electrically excited synchronous motor (EESM) is widely used in many large equipment drives because of its strong overload capacity, high efficiency, and adjustable power factor. The research and development of a high-performance EESM control system can realize the high combination of energy-saving speed regulation and green environmental protection and has a high social effect and economic value. In this paper, the signal injection method is used to obtain the initial rotor position information of EESM. Sliding Fourier transform is used to improve the initial position angle detection method b

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Cao, Yanfei, Shuxin Xiao, and Zhichen Lin. "A Flying Restart Strategy for Position Sensorless PMSM Driven by Quasi-Z-Source Inverter." Energies 15, no. 9 (2022): 3469. http://dx.doi.org/10.3390/en15093469.

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The accurate estimation of rotor position and speed before flying restart is of great significance to improve the operation reliability of permanent magnet synchronous motor systems. The traditional multizero vector short-circuit method can improve the estimation accuracy of speed and rotor position, but the increased number of short-circuits reduces the electromagnetic torque response speed after the power supply recovers. In order to accurately estimate the initial speed and rotor position before the flying restart and effectively improve the electromagnetic torque response speed, a shoot-th

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Zhou, Ying, Zuyu Wu, and Yutong Wu. "Intelligent Permanent Magnet Motor-Based Servo Drive System Used for Automated Tuning of Piano." Energies 14, no. 20 (2021): 6627. http://dx.doi.org/10.3390/en14206627.

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This paper presents an intelligent permanent magnet synchronous motor-based servo drive system used in automated piano tuning applications. The permanent magnet synchronous motor-based drives are able to improve the accuracy of the piano tuning process in comparison with the traditional direct-current motor-based and step motor-based servo drives. To explain the techniques, firstly, the structure and principles of the automated piano tuning devices with a surface-mounted permanent magnet synchronous motor-based drive system integrated are introduced, illustrating that it is feasible to impleme

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Zhou, Ying, Zuyu Wu, and Yutong Wu. "Intelligent Permanent Magnet Motor-Based Servo Drive System Used for Automated Tuning of Piano." Energies 14, no. 20 (2021): 6627. http://dx.doi.org/10.3390/en14206627.

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This paper presents an intelligent permanent magnet synchronous motor-based servo drive system used in automated piano tuning applications. The permanent magnet synchronous motor-based drives are able to improve the accuracy of the piano tuning process in comparison with the traditional direct-current motor-based and step motor-based servo drives. To explain the techniques, firstly, the structure and principles of the automated piano tuning devices with a surface-mounted permanent magnet synchronous motor-based drive system integrated are introduced, illustrating that it is feasible to impleme

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Zhao, Ji Yun, Hai Gang Ding, and Liang Zhao. "Research on Electrohydraulic Servo Proportional Speed Regulation System for Anti-Explosion Hydraulic Hoisters." Applied Mechanics and Materials 34-35 (October 2010): 1205–10. http://dx.doi.org/10.4028/www.scientific.net/amm.34-35.1205.

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In terms of poor controllability of motor speed, the drum speed of the anti-explosion hydraulic hoister is fed back and controlled in closed loop. An electrohydraulic servoproportional speed regulation systems for anti-explosion hydraulic hoisters is proposed. Two control constructions are formed, the pump controlled motor system with/without position loop (PCMWP, PCMP, resp.) according to whether the displacement of pump is controlled in closed loop or not. Experiments of two control constructions are made under overflow load and weight load. Experimental results indicate that the presented s

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Zhang, Yan, Huacai Lu, Minghu Li, and Xiang Liu. "Speed Regulation and Optimization of Sensorless System of Permanent Magnet Synchronous Motor." Machines 11, no. 6 (2023): 656. http://dx.doi.org/10.3390/machines11060656.

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Aiming at the problems of speed overshoot, slow convergence and poor anti-interference in the control of permanent-magnet synchronous motors (PMSMs) without a position sensor, a pulse vibration high-frequency signal injection method for a permanent-magnet synchronous motor with an improved sliding mode control was designed. Firstly, the improved approach rate function is combined with the improved non-singular fast terminal sliding mode surface to design the non-singular fast terminal sliding mode controller (NFTSMC), which is used in the speed loop to improve the speed convergence ability and

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Xu, Qingsong. "Robust Impedance Control of a Compliant Microgripper for High-Speed Position/Force Regulation." IEEE Transactions on Industrial Electronics 62, no. 2 (2015): 1201–9. http://dx.doi.org/10.1109/tie.2014.2352605.

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11

Zhang, Kohao, Xin Zhao, Xuewei Lu, and Hongqiang Zhou. "Sensorless PMSM control system design based on XMC1302." Journal of Physics: Conference Series 2896, no. 1 (2024): 012001. https://doi.org/10.1088/1742-6596/2896/1/012001.

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Abstract Addressing the issues of insufficient torque, low efficiency, and limited speed regulation in traditional constant frequency ratio control of Permanent Magnet Synchronous Motors (PMSM), this paper designs a PMSM control system based on the XMC1302 microcontroller. The study focuses on how to achieve smooth speed regulation from 500 rpm to 5000 rpm without position sensors. By incorporating a rotor state estimation algorithm, the motor’s performance is significantly improved across a wide speed range. This research offers crucial theoretical and practical insights for achieving efficie

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Park, Gwangmin, Gyeongil Kim, and Bon-Gwan Gu. "Sensorless PMSM Drive Inductance Estimation Based on a Data-Driven Approach." Electronics 10, no. 7 (2021): 791. http://dx.doi.org/10.3390/electronics10070791.

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In the permanent magnet synchronous motor (PMSM) sensorless drive method, motor inductance is a decisive parameter for rotor position estimation. Due to core magnetic saturation, the motor current easily invokes inductance variation and degrades rotor position estimation accuracy. For a constant load torque, saturated inductance and inductance error in the sensorless drive method are constant. Inductance error results in constant rotor position estimation error and minor degradations, such as less optimal torque current, but no speed estimation error. For a periodic load torque, the inductance

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Ning, Bowen, Yiheng Zhao, and Shimin Cheng. "An Improved Sensorless Hybrid Control Method of Permanent Magnet Synchronous Motor Based on I/F Startup." Sensors 23, no. 2 (2023): 635. http://dx.doi.org/10.3390/s23020635.

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To realize permanent magnet synchronous motor (PMSM) in the full speed domain without speed sensor operation, a hybrid control method combining I/F startup and extended Kalman filter (EKF) is proposed in this paper. This method employs I/F startup to transition at low speed, effectively resolving the issue that the position estimation method based on the back electromotive force (EMF) model fails at zero speed and low speed, and converts to EKF for speed closed-loop vector control at medium and high speed. Moreover, a new feedback regulation mechanism as a solution to the problem of smooth swi

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Buyalsky, V. I. "Wind Power Plant Efficiency Increasing Methods in Ice Formation on Wind Wheels Blades." Intellekt. Sist. Proizv. 21, no. 4 (2023): 42–46. http://dx.doi.org/10.22213/2410-9304-2023-4-42-46.

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Effective automated control method relevance of wind power plant in ice formation on wind wheel blades is justified for different operation modes, to minimize transient time of regulation of wind turbine rotor angular speed, so as to increase the stability of wind wheel rotation speed and to improve reliability indicators of modern wind power plant components at incomplete information of wind speed, the electric loading characteristics being changed significantly with time. The review of basic ways of wind power plant control for regions with severe winters and wind unit operation has a number

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Tang, Xingtao, Xiaodong Sun, and Ming Yao. "An Overview of Position Sensorless Techniques for Switched Reluctance Machine Systems." Applied Sciences 12, no. 7 (2022): 3616. http://dx.doi.org/10.3390/app12073616.

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Accurate real-time rotor position is indispensable for switched reluctance motors (SRM) speed and torque control. Traditional position sensors add complexity and potential failure risk to the system. Owing to the added advantages of high stability and low cost, the position sensorless method of SRMs has been extensively studied to advance its use in vehicles and construction machinery. This paper presents an overview of position sensorless control techniques from the perspective of whether the method requires the establishment of complex mathematical models. Various types of methods are compar

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Huang, Junjie, and Yingxiong Du. "Impact of Fan Position and Speed Adjustments in Glass Greenhouse Environments." Highlights in Science, Engineering and Technology 104 (June 11, 2024): 197–206. http://dx.doi.org/10.54097/bbf1x061.

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In the context of the contemporary development of precision agriculture, glass greenhouses, as an important infrastructure for enhancing crop production efficiency and quality, have become a frontier area of agricultural science and technology innovation for the internal microenvironmental regulation, especially the optimization of airflow dynamics and temperature distribution. In this paper, the study is based on the three-dimensional turbulence model equations of Reynolds number and Darcy-Forkheimer law, and modeled the cases without and with crops, simulated their different wind velocity an

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Echeveste, Salvador, Ernesto Hernandez-Hinojosa, and Pranav A. Bhounsule. "Event-Based, Intermittent, Discrete Adaptive Control for Speed Regulation of Artificial Legs." Actuators 10, no. 10 (2021): 264. http://dx.doi.org/10.3390/act10100264.

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For artificial legs that are used in legged robots, exoskeletons, and prostheses, it suffices to achieve velocity regulation at a few key instants of swing rather than tight trajectory tracking. Here, we advertise an event-based, intermittent, discrete controller to enable set-point regulation for problems that are traditionally posed as trajectory following. We measure the system state at prior-chosen instants known as events (e.g., vertically downward position), and we turn on the controller intermittently based on the regulation errors at the set point. The controller is truly discrete, as

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Jiang, Wei Hua, Yuan Cheng Fan, and Zheng Liu. "Double Position Loop Design of AC Servo Drive System." Applied Mechanics and Materials 529 (June 2014): 486–90. http://dx.doi.org/10.4028/www.scientific.net/amm.529.486.

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The loop controller of double position fully closed makes the AC servo drive system acquire a very high position accuracy and speed following which is hard to be achieved for time-varying parameters, load disturbance, AC motors and severely nonlinear controlled objects. For the system, the dynamic nature can be ensured by the inner position loop adopting PI regulation of half closed loop structure, while the stability and the immunity can be achieved by closed loop structures with the rings outside adopting dual-mode fuzzy control. This article analyzes the cause of positioning errors for serv

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Lin, Yizhu, Gemma E. May, Hunter Kready, et al. "Impacts of uORF codon identity and position on translation regulation." Nucleic Acids Research 47, no. 17 (2019): 9358–67. http://dx.doi.org/10.1093/nar/gkz681.

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Abstract Translation regulation plays an important role in eukaryotic gene expression. Upstream open reading frames (uORFs) are potent regulatory elements located in 5′ mRNA transcript leaders. Translation of uORFs usually inhibit the translation of downstream main open reading frames, but some enhance expression. While a minority of uORFs encode conserved functional peptides, the coding regions of most uORFs are not conserved. Thus, the importance of uORF coding sequences on their regulatory functions remains largely unknown. We investigated the impact of an uORF coding region on gene regulat

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Zhang, Yun, Liang Chen, Zhixue Wang, and Enguang Hou. "Speed Control of Switched Reluctance Motor Based on Regulation Region of Switching Angle." Energies 15, no. 16 (2022): 5782. http://dx.doi.org/10.3390/en15165782.

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This paper studies the speed control strategy of a switched reluctance motor based on angle-position control (APC). The switched reluctance motor has three control parameters: turn-on angle, turn-off angle and voltage PWM duty cycle. This paper studies the function of the three parameters and designs the control algorithms of the parameters, respectively, which can reduce the coupling degree, simplify the control process, and realize the optimal control of the switched reluctance motor. By studying the nonlinear characteristics of the switched reluctance motor, the optimal current waveform in

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Nikolić, Saša S., Igor Kocić, Dragan Antić, et al. "THE WINDER DANCER POSITION CONTROL MODEL USING DIFFERENT PID CONTROL STRUCTURES AND MICROLOGIX PLC." Facta Universitatis, Series: Automatic Control and Robotics 1, no. 2 (2022): 077. http://dx.doi.org/10.22190/fuacr220409007n.

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In the cable industry, improper regulation of the winding speed of the conductor cable, i.e. the position of the tensioner (dancer) leads to improper stretching of the conductor, which significantly affects the characteristics of the final product. Winding speed control is directly related to tensioning which is an additional problem. This paper presents a system for control a cable winding device using a linear PID controller with and without control signal limitation. The system parameters were determined using integral time-weighted absolute error (ITAE) criteria and realized using a conven

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Awaar, Vinay Kumar, Anjali Nagilla, Sravani Bannuru, Suchitha Veeramaneni, Prasanthi Veerla, and A. Hussien Abbas. "Position sensorless field-oriented control of BLDC motor for EV applications." E3S Web of Conferences 391 (2023): 01176. http://dx.doi.org/10.1051/e3sconf/202339101176.

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A brushless DC motor (known as BLDC) is a permanent magnet synchronous electric motor which is driven by direct current (DC) electricity, and it accomplishes an electronically controlled commutation system instead of a mechanical commutation system. Major of the BLDC applications are based on speed control like motors used in electric vehicles, washing machines, air conditioners, etc. For the speed regulation of BLDC, TMS320F2837xD and TMS320F28069M microcontrollers are used, which belong to the C2000 family. These microcontrollers are used to increase efficiency by reducing the system compone

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Sudhakar, Ambarapu, Bodapati Venkata Rajanna, Madhireddi Bhaskara Naidu, et al. "Speed control analysis of voltage source inverter fed brushless DC motor." International Journal of Applied Power Engineering 13, no. 4 (2025): 928–33. https://doi.org/10.11591/ijape.v13.i4.pp928-933.

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The brushless DC (BLDC) motor requires to be controlled at the preferred speed in order to operate. A brushless DC motor's speed can be adjusted by adjusting the input voltage. In general, speed increases with voltage. The application of a Luo converter is made to satisfy the load demand, get rid of output voltage ripples, and reduce parasitic effects. The magnitude of stator input voltage to BLDC motor is controlled through the pulses applied by ATMEGA 328P micro controller to voltage source Inverter which in turn controls the magnitude of speed of BLDC motor. The position of the brushless DC

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Diao, Han, and Hongji Xia. "Simulation and Optimization for Position Servo Control System of Switched Reluctance Motor." Journal of Physics: Conference Series 2469, no. 1 (2023): 012018. http://dx.doi.org/10.1088/1742-6596/2469/1/012018.

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Abstract Switched reluctance motors are widely used in household appliances, textile machines, electric vehicles, and other fields due to their simple structure, low cost, high reliability, high efficiency, large starting torque, and wide speed regulation range. With the continuous expansion of the application field of SRM, higher requirements are put forward for the design of the motor position servo control system. The control system should be highly accurate and easy to deploy and have strong anti-interference. Based on the traditional switched reluctance motor control method, this paper de

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Qin, Ya Jie. "Numerical Investigation of Pneumatic Regulating on Low-Pressure Guide Vane." Applied Mechanics and Materials 733 (February 2015): 554–57. http://dx.doi.org/10.4028/www.scientific.net/amm.733.554.

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In order to reduce the turbine flow, injecting an airstream into the mainstream of the low-pressure turbine from the casing. A CFD analysis has been carried out to study the impact of jet parameters (jet position, Angle, flow rate and velocity) to the turbine flow. The calculation results show that when the low-speed region caused by the jet flow locates at the throat the flow regulating effect is the most obvious. In additional, when the jet is against the main stream or with a big flow rate, the turbine flow regulation is better, but the loss efficiency of the turbine will be significantly i

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Yan, Xuechen, Fei Yan, Danyao Zhao, and Shizhen Li. "Speed Control of Secondary Regulation Heave Compensation Based on Fuzzy PID." Journal of Physics: Conference Series 2419, no. 1 (2023): 012058. http://dx.doi.org/10.1088/1742-6596/2419/1/012058.

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Abstract Aiming at the problem that the widely used heave compensation technology is difficult to balance the compensation effect and energy consumption, based on the secondary regulation technology, the fuzzy PID control method is selected to design a winch heave compensation system with energy recovery. Firstly, a mathematical model is established and analyze the energy-saving characteristics of the heave compensation system. Then, the swash plate controller and speed outer loop controller are designed, and the simulation is model with the AMESim-MATLAB co-simulation platform. Finally, the s

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BIYA, MOTTO Frederic*1 TCHUIDJAN Roger2 NDZANA Benoît2 TATSA Colince3. "CONTROL OF DIRECT CURRENT ELECTRICAL MACHINE: DESIGN OF A SERVOCONTROLLER." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 5, no. 5 (2018): 33–37. https://doi.org/10.5281/zenodo.1247951.

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In this paper, a servocontroller electric drive is used for the regulation of executive organposition in functioning machine depending on input signal. The servocontroller should install the executive organ into corresponding position with a given precision. The servocontroller will include a stabilization current loop and its limitator installation, and also a stabilization speed loop. It is also necessary to build a third external loop on position of functioning machine executive organ.

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Stol, Karl, and Mark Balas. "Full-State Feedback Control of a Variable-Speed Wind Turbine: A Comparison of Periodic and Constant Gains." Journal of Solar Energy Engineering 123, no. 4 (2001): 319–26. http://dx.doi.org/10.1115/1.1412237.

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An investigation of the performance of a model-based periodic gain controller is presented for a two-bladed, variable-speed, horizontal-axis wind turbine. Performance is based on speed regulation using full-span collective blade pitch. The turbine is modeled with five degrees-of-freedom; tower fore-aft bending, nacelle yaw, rotor position, and flapwise bending of each blade. An attempt is made to quantify what model degrees-of-freedom make the system most periodic, using Floquet modal properties. This justifies the inclusion of yaw motion in the model. Optimal control ideas are adopted in the

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Liang, Jinxin, Feng Pan, Jincheng Chen, Hui Zhang, and Chao Ji. "A Precise Simultaneous Sowed Control System for Maize Seed and Fertilizer." Agriculture 14, no. 2 (2024): 192. http://dx.doi.org/10.3390/agriculture14020192.

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To improve the utilization rate of maize seed fertilizer, this study aimed to propose a precise co-sowing control system for the real-time control of the relative position of seed fertilizer during the co-sowing operation. According to the operating speed of the machine, the longitudinal distance between the seed feeder and the outer groove wheel, the height of the seed and fertilizer falling, and the relative position of the seed and fertilizer falling into the soil, the calculation method for the seed and fertilizer falling into the soil was obtained, the precise co-seeding model of the seed

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Aldana, Noé, Axel Ramirez Rocha, Edgar Daniel Martínez, and Emmanuel Ovalle Magallanes. "Nonlinear Model Predictive Control for Pose Regulation Robot and Obstacle Avoidance." Memorias del Congreso Nacional de Control Automático 7, no. 1 (2024): 244–49. https://doi.org/10.58571/cnca.amca.2024.042.

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The present work addressed the problem of autonomous navigation of wheeled mobile robots, specifically the Differential Driving Robot (DDR). The DDR kinematic model is nonlinear, which requires adequate automatic control strategies for good performance in autonomous navigation. The variables of the DDR mathematical model are the robot’s position expressed in a global Cartesian reference frame, its orientation, its linear speed, and its angular speed. It was proposed that the navigation problem of a DDR be solved by following a reference trajectory using model-based nonlinear predictive control

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Paula, Greg. "Taking Sensors Out of Motors." Mechanical Engineering 120, no. 01 (1998): 74–75. http://dx.doi.org/10.1115/1.1998-jan-6.

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This article discusses that advanced signal processors are replacing the feedback sensors that had been required for motor control in applications ranging from disk drives to appliance motors. The traditional method of closed-loop motor control has been to use one or more sensors to provide feedback. A growing number of applications, however, are now eliminating the sensor through one of several methods, such as back electromotive force (EMF) or inductance measurement. Sensorless motors are best suited for applications where speed control is needed, but precise position control is not critical

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Yu, Wentao, and Guoyang Cheng. "A large-stroke rapid motion controller for servo applications with speed and control constraints." Transactions of the Institute of Measurement and Control 44, no. 7 (2021): 1424–39. http://dx.doi.org/10.1177/01423312211056444.

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Large-stroke rapid motion is required in many industrial servo systems (e.g. pick-and-place applications), on which constraints of control input and motion speed are usually imposed. This paper presents a hybrid control scheme for large-stroke rapid motion in such systems. The controller resorts to the time-optimal control (TOC) for maximum acceleration initially and then switches into a linear control law to achieve smooth settling. A speed regulation stage is inserted in the tracking process to prevent violating the speed constraint. To tackle the unmeasured speed and unknown disturbance, an

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Radzevicius, Lionginas, and Edvardas Matkevicius. "The Operation of the Linear Induction Motor by Changing the Position of the Inductors between each other." Solid State Phenomena 144 (September 2008): 169–74. http://dx.doi.org/10.4028/www.scientific.net/ssp.144.169.

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The most important scientific theoretical research works of the linear induction motor (LIM) are made having in mind double – sided symmetric model with the uniform secondary element. Its operation is investigated by already well-known methods used for the rotor asynchronous machines and as a rule with the opposite value of the magnetic poles of the inductors (NS). Authors give the results of the research only of LIM (the scientific aspect of the problem is not well studied yet, it is little known about the ways of the speed and development regulation of the LIM force, by changing the location

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Huang, Shouren, Niklas Bergström, Yuji Yamakawa, Taku Senoo, and Masatoshi Ishikawa. "Applying High-Speed Vision Sensing to an Industrial Robot for High-Performance Position Regulation under Uncertainties." Sensors 16, no. 8 (2016): 1195. http://dx.doi.org/10.3390/s16081195.

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Tsai, I.-Hsun, Wei-Fong Kao, Chorng-Kuang How, et al. "Cardiac autonomic regulation following a 246-km mountain ultra-marathon: An observational study." Medicine 103, no. 27 (2024): e38756. http://dx.doi.org/10.1097/md.0000000000038756.

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Physical exercise requires integrated autonomic and cardiovascular adjustments to maintain homeostasis. We aimed to observe acute posture-related changes in blood pressure, and apply a portable noninvasive monitor to measure the heart index for detecting arrhythmia among elite participants of a 246-km mountain ultra-marathon. Nine experienced ultra-marathoners (8 males and 1 female) participating in the Run Across Taiwan Ultra-marathon in 2018 were enrolled. The runners’ Heart Spectrum Blood Pressure Monitor measurements were obtained in the standing and supine positions before and immediately

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Zhu, Jian Feng, Peng Xiang Hua, Jun Bang Liu, Xin Wang, and Di Min Wu. "Research on Speed Control Problem of Industrial Sewing Machine System." Applied Mechanics and Materials 602-605 (August 2014): 1117–21. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.1117.

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This paper presents a new method of braking control related to the brushless DC Motor control industrial sewing machine system by analyzing the braking method of brushless DC Motor and the characteristics of control method concerning industrial sewing machines system. With the RENESAS SH7125 MCU as the core controlling, this paper analyzes from the both aspects of speed regulation and braking control, adopts oscillating circuit frequency input method for frequency control, reversing locking brake by detecting needle position signal. Practice proves that the method has achieved good effect, met

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Liu, Wei, Yunhua Li, and Dong Li. "A coordinated control law for inlet/outlet independent regulation of electro-hydraulic speed control system under sustained negative load." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 234, no. 9 (2020): 1689–705. http://dx.doi.org/10.1177/0954406219899691.

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Negative load operation is an inevitable operating condition for a completed task cycle of electro-hydraulic speed control system. In this working condition, to coordinate both tracking control and speed smooth regulation is necessary for avoiding stall. In this paper, a nonlinear coordinated control law aiming at independent regulation of inlet/outlet oil of valve-controlled electro-hydraulic speed system under sustained negative load is proposed. The overall control system can be divided into position tracking control subsystem and speed smooth control subsystem according to the function of

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Ivanišević, Tijana, Aleksandar Trifunović, Sreten Simović та Svetlana Čičević. "The importance of using a retroreflective vest for the Е-bicycle speed perception". Put i saobraćaj 67, № 3 (2021): 39–42. http://dx.doi.org/10.31075/pis.67.03.07.

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Logistic center’s location for goods distribution in Republic of Srpska can be asserted on many parameters from whom two has vital importance: geographical position and size of traffic flow. Special significance of these center’s are logistical diversity, especially where different branches of traffics are involved. Starting factors for developing such a center in Republic of Srpska are position on roads, rails and corridors. Main purpose of these centers are command gathering, sendig commands to transport vehicles, depo good if necessary, forming transport units and delivery. There are seven

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Jiang, Bin, Yongcheng Cao, Chengquan Wang, Qiang Wang, and Qiong Wu. "Research on Performance Speed Regulation System of Direct Conversion AC-DC Power Conversion Device." Journal of Physics: Conference Series 2074, no. 1 (2021): 012018. http://dx.doi.org/10.1088/1742-6596/2074/1/012018.

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Abstract With the continuous development of social economy, the application market of electric motors has become more and more broad. Based on the principle of modular design, this paper designs the hardware circuit system of the matrix converter, and completes the parameter calculation of the input LC filter. The modulation algorithm needs to determine the sector and position angle of the input three-phase voltage. The DC speed regulation system powered by the conversion AC-DC power conversion technology is compared with the Buck circuit power supply system. Practice shows that the system has

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Liu, Guan Da, Bo Mo, De Zhi Zhou, and Shu Cen Du. "High-Speed Brushless DC Motor Current-Loop Sampling System Design for Three-Axis Turntable." Applied Mechanics and Materials 527 (February 2014): 252–58. http://dx.doi.org/10.4028/www.scientific.net/amm.527.252.

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Brushless DC motor (BLDCM) is adopted in the driving of a three-axis turntable. A high-speed current sampling system plays a vital role in intelligent control. This article firstly describes the working principle of a triple-closed-loop regulation system and emphatically dissects the characteristic of the current-loop among speed-loop and position-loop. Secondly, a signal acquisition-alignment circuit of three phases’ current and voltage is designed. Based on ADS8365, a scheme of high-speed current loop’s precise and synchronous sampling system is provided. Finally, experimental results have p

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Shi, Yong, Lian Yu Zhang, Jun Sun, and Hong Guang Zhang. "Research on the Speed of Diesel Engine Based on Improved BP Neural Network Controller." Applied Mechanics and Materials 281 (January 2013): 105–11. http://dx.doi.org/10.4028/www.scientific.net/amm.281.105.

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Marine diesel engine is of characteristics of non-linear and time-invariant, so it is difficult to be controlled with traditional PID controller. An adaptive controller based on back-propagation (BP) neural networks was put forwarded for marine diesel engine speed control system, where two neural networks are proposed to control the position loop and speed loop. The adaptive controller was improved was improved via introducing relative error in target evaluation function of the BP neural network, and obtain sensitivity function of diesel engine output with respect to its input using a differen

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Liu, Xue Peng, and Dong Mei Zhao. "The Study on Motor Speed Controller." Applied Mechanics and Materials 299 (February 2013): 89–92. http://dx.doi.org/10.4028/www.scientific.net/amm.299.89.

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The speed regulating motor controller is designed. On the basis of the controller the position detection, the control strategy and the main power circuit application are discussed. The related hardware debugging is completed and tested.

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Zhang, Ji, Qigang Gao, and Hai Wang. "Discover Gene Specific Local Co-Regulations from Time-Course Gene Expression Data." Scientific Programming 16, no. 1 (2008): 31–47. http://dx.doi.org/10.1155/2008/182058.

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Discovering gene co-regulatory relationships is one of most important research in DNA microarray data analysis. The problem of gene specific co-regulation discovery is to, for a particular gene of interest (called target gene), identify the condition subsets where strong gene co-regulations of the target gene are observed and its co-regulated genes in these condition subsets. The co-regulations are local in the sense that they occur in some subsets of full experimental conditions. The study on this problem can contribute to better understanding and characterizing the target gene during the bio

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Su, Rui, Xiaoming Rui, Xin Wu, and Qidong Yin. "The design and analysis of wind turbine based on differential speed regulation." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 230, no. 2 (2015): 221–29. http://dx.doi.org/10.1177/0954406215586008.

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Aiming problems arising from the wind turbine with the frequency converter, this paper proposes a design for wind turbine based on differential speed regulation. The dynamic characteristics and parameter determination method of the structural components including differential gear train and speed regulating motor (SRM) were studied and the dynamic characteristic expression were obtained. The critical conditions about input power or output power for ring gear driven by SRM were researched. The way to determine the optimal structure parameters of SRM was put forward. The minimum peak power of SR

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Xu, Lei, Linxuan Mao, and Shihua Li. "Anti-disturbance low speed regulation control of PMSMs using modified extended state observer based on rotor position." IET Conference Proceedings 2024, no. 26 (2025): 63–68. https://doi.org/10.1049/icp.2025.0050.

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Nikitin, Artur, and Oleh Levchenko. "Position control systems with friction compensation for servo pneumatic actuators." Mechanics and Advanced Technologies 8, no. 4(103) (2024): 419–27. https://doi.org/10.20535/2521-1943.2024.8.4(103).313292.

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Article is devoted to the development of control systems for a pneumatic system taking into account the current position of the working body of the actuator and the amount of friction in the friction pairs of the actuator. This work also examines control systems for pneumatic drives based on the position of the working body, taking into account the nonlinearity of the motion caused by friction forces in the pneumatic actuator. The study demonstrates existing control systems and implemented static and dynamic models of friction compensation and the impact of such models on the accuracy and cont

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Sudhakar, Ambarapu, Bodapati Venkata Rajanna, Madhireddi Bhaskara Naidu, et al. "Speed control analysis of voltage source inverter fed brushless DC motor." International Journal of Applied Power Engineering (IJAPE) 13, no. 4 (2024): 928. http://dx.doi.org/10.11591/ijape.v13.i4.pp928-933.

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The brushless DC (BLDC) motor requires to be controlled at the preferred speed in order to operate. A brushless DC motor's speed can be adjusted by adjusting the input voltage. In general, speed increases with voltage. The application of a Luo converter is made to satisfy the load demand, get rid of output voltage ripples, and reduce parasitic effects. The magnitude of stator input voltage to BLDC motor is controlled through the pulses applied by ATMEGA 328P micro controller to voltage source Inverter which in turn controls the magnitude of speed of BLDC motor. The position of the brushless DC

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Ferdiansyah, Indra, and Tsuyoshi Hanamoto. "An Improved Extraction Scheme for High-Frequency Injection in the Realization of Effective Sensorless PMSM Control." World Electric Vehicle Journal 16, no. 6 (2025): 326. https://doi.org/10.3390/wevj16060326.

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High-frequency (HF) injection is a widely used technique for low-speed implementation of position sensorless permanent magnet synchronous motor control. A key component of this technique is the tracking loop control system, which extracts rotor position error and utilizes proportional–integral regulation as a position observer for estimating the rotor position. Generally, this process relies on band-pass filters (BPFs) and low-pass filters (LPFs) to modulate signals in the quadrature current to obtain rotor position error information. However, limitations in filter accuracy and dynamic respons

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Shoby, Niba, Deepika Vasanthakumar, and Anupama P K. "Speed Control Using Fuzzy Controller for a Four Switch Sensorless BLDC Motor." Volume 5 - 2020, Issue 8 - August 5, no. 8 (2020): 1668–74. http://dx.doi.org/10.38124/ijisrt20aug689.

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- Brushless Direct Current (BLDC) motors are highly efficient motors with high reliability and a longer life span. The advent of sensor less technology has improved the performance and reliability of BLDC motor drives. This work is to analyze a drive system for BLDC motor with Four-Switch Three-Phase Inverter (FSTPI). Back Electromotive Force (EMF) Zero Crossing Detection (ZCD) method is used to estimate the rotor position. Speed control of motor is achieved by using Fuzzy Logic Controller (FLC) based closed loop control system. The Simulation was carried out using MATLAB software and motor th

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Li, Taochang, Ang Li, and Limin Hou. "Improved GOA-based fuzzy PI speed control of PMSM with predictive current regulation." PLOS ONE 20, no. 1 (2025): e0318094. https://doi.org/10.1371/journal.pone.0318094.

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To address the susceptibility of conventional vector control systems for permanent magnet synchronous motors (PMSMs) to motor parameter variations and load disturbances, a novel control method combining an improved Grasshopper Optimization Algorithm (GOA) with a variable universe fuzzy Proportional-Integral (PI) controller is proposed, building upon standard fuzzy PI control. First, the diversity of the population and the global exploration capability of the algorithm are enhanced through the integration of the Cauchy mutation strategy and uniform distribution strategy. Subsequently, the fusio

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