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A fault tolerant sensorless position estimation scheme for switched reluctance motor at low speed

COMPEL 2020年第4期39卷 823-837页

作者： Dong, Feng Chen, Hao Xu, Shuai Cui, Sihang School of Electrical and Power Engineering China University of Mining and Technology Xuzhou China

Purpose: This paper aims to present a novel position sensorless control scheme with fault-tolerance ability for switched reluctance motor at low speed. Design/methodology/approach: First, the detection pulses are injected in the freewheeling and idle intervals of each phase. Second, the aligned position of each phase can be detected by comparing the consecutive rise time of detection current. Third, the whole-region rotor position and real-time rotational speed can be updated four times for the improvement of detection accuracy. Finally, the fault-tolerant control strategy is performed to enhance the robustness and reliability of proposed sensorless scheme under faulty conditions. Findings: Based on proposed sensorless control strategy, the estimated rotor position is in good agreement with the actual rotor position and the maximum rotor position error is 1.5°. Meanwhile, the proposed sensorless scheme is still effective when the motor with multiphase loss and the maximum rotor position error is 1.9°. Moreover, the accuracy of the rotor position estimation can be ensured even if the motor is in an accelerated state or decelerated state. Originality/value: The proposed sensorless method does not require extensive memory, complicated computation and prior knowledge of the electromagnetic properties of the motor, which is easy to implement. Furthermore, it is suitable for different control strategies at low speed without negative torque generation. [ABSTRACT FROM AUTHOR]

关键词： Electrical machine Fault-tolerant ability position sensorless control sensorless control Switched reluctance motor Tolerances

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position sensorless control Based on Augmented Extended Kalman Filter for Permanent Magnet Linear Synchronous Motor

Position Sensorless Control Based on Augmented Extended Kalm...

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International Conference on Computer-Aided Design, Manufacturing, Modeling and Simulation (CDMMS 2011)

作者： Lu, Huacai Jiang, Ming Wei, Lisheng Liu, Bingyou Anhui Polytech Univ Anhui Prov Key Lab Elect & Control Wuhu 241000 Peoples R China

ISBN: (纸本)9783037852361

In order to achieve position sensorless control for PMLSM drive system, speed and position of the motor must be estimated. A novel sensorless position and speed estimation algorithm was designed for PMLSM drive by measuring terminal voltages and currents. That was state augmented extended Kalman filter (AEKF) estimation method. The resistance of the motor was augmented to the state variable. Then, the speed, position and the resistance were estimated simultaneously through extended Kalman filter (EKF). The influence of the resistance on the state estimation results could be reduced. As well as giving a detailed explanation of the new algorithm, experimental results were presented. It shows that the AEKF is capable of estimating system states accurately and reliability, and the proposed sensorless control system has a good dynamic response.

关键词： permanent magnet linear synchronous motor (PMLSM) position sensorless control augmented extended Kalman filter (AEKF)

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On the sensorless rotor position control of the Permanent Magnet Synchronous Motor: An Active Disturbance Rejection Approach 13

On the sensorless rotor position control of the Permanent Ma...

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13th International Conference on Power Electronics (CIEP)

作者： Zurita-Bustamante, E. W. Sira-Ramirez, Hebertt Linares-Flores, Jesus CINVESTAV Secc Mecatron Mexico City 07360 DF Mexico Univ Tecnol Mixteca Inst Elect & Mecatron Huajuapan De Leon Oaxaca Mexico

ISBN: (纸本)9781509017751

This paper presents a rotor position sensorless control for the permanent magnet synchronous motor (PMSM), based on an active disturbance rejection control technique and an integral reconstructor for the rotor position estimation. The control law uses a generalized proportional integral observer (GPIO) for estimating and compensating the unknown uncertainties which the PMSM system is subject. The control law is designed in the alpha-beta coordinate as it is just like the integral reconstructor of the PMSM rotor position. The validity and robustness of the proposed scheme is verified via realistic co-simulations using Matlab/Simulink and PSIM packages.

关键词： Permanent magnet synchronous motor (PMSM) position sensorless control Active disturbance rejection control (ADRC) GPI observers Multivariable control Robust control

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High-Frequency Voltage-Injection Methods and Observer Design for Initial position Detection of Permanent Magnet Synchronous Machines

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IEEE TRANSACTIONS ON POWER ELECTRONICS 2018年第9期33卷 7971-7979页

作者： Jin, Xinhai Ni, Ronggang Chen, Wei Blaabjerg, Frede Xu, Dianguo Harbin Inst Technol Sch Elect Engn & Automat Harbin 150001 Heilongjiang Peoples R China Shanghai STEP Elect Corp Shanghai 201802 Peoples R China Aalborg Univ Dept Energy Technol DK-9220 Aalborg Denmark

The information of the initial rotor position is essential for smooth startup and robust control of permanent magnet synchronous machines (PMSMs). RoTating Voltage Injection (RTVI) methods in the stationary reference frame have been commonly adopted to detect the initial rotor position at standstill without any position sensors. However, although the Pulsating sqUare-wave Voltage-Injection (PUVI) method performs better in estimation time and accuracy, it is rarely used because the estimation result may converge to the q-axis. In this paper, this fault convergence is avoided by modifying the initial states of the position observer, and the PUVI method can finally be used for the robust initial rotor position detection. Modified signal processing techniques are proposed for both RTVI and PUVI methods for better implementations in fixed-point processors and easier observer gain designs. Detailed comparisons between these two methods are provided. Furthermore, two position estimation observers, i.e., the proportional-integral observer and the extended state observer are compared, and their parameter tuning methods are studied as well. Both simulation and experimental results are provided for verifications.

关键词： Initial rotor position detection observer permanent magnet synchronous machine (PMSM) position sensorless control square-wave voltage injection

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Research on Rotor position Model for Switched Reluctance Motor Using Neural Network

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IEEE-ASME TRANSACTIONS ON MECHATRONICS 2018年第6期23卷 2762-2773页

作者： Cai, Yan Wang, Yu Xu, Hainan Sun, Siyuan Wang, Chenhui Sun, Liubin Tianjin Key Lab Adv Technol Elect Engn & Energy Res Motors & Drives Tianjin 300387 Peoples R China Tianjin Key Lab Adv Technol Elect Engn & Energy Tianjin 300387 Peoples R China

Due to the double-salient structure of the switched reluctance motor (SRM) and highly magnetic saturation, its rotor position shows highly nonlinear function with phase current and flux linkage. Therefore, the establishment of accurate and small-scale SRM rotor position model is crucial to realize SRM position sensorless control. This paper is based on SRM flux characteristics collected by actual measurement, then adopts back-propagation neural network (BPNN) with improved algorithm and radial basis function neural network (RBFNN), respectively, to build SRM rotor position model. It is concluded that the model built by BPNN based on the Levenberg-Marquardt algorithm has smaller network structure and higher accuracy than RBFNN. In order to optimize BPNN model further, two kinds of pretreatment methods are used to study SRM rotor position model, respectively, and the modeling results of these two methods are compared. Adopting pretreatment method could reduce scale and improve accuracy to achieve the model optimization. After initial rotor position was estimated accurately without rotor position sensor, experiments are performed based on a three-phase 12/8 SRM. The experimental results verify that the BPNN model of rotor position for SRM based on a pretreatment method could be applied to SRM position sensorless control.

关键词： Neural network position sensorless control rotor position model switched reluctance motor (SRM)

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Rotor position estimation method for permanent magnet synchronous motor based on Super-Twisting Sliding Mode Observer 37

Rotor Position estimation method for permanent magnet synchr...

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37th Chinese control Conference (CCC)

作者： Wang, Dazhi Liu, Jingjing Miao, Shu Yuan, Tianqing Li, Ye Tian, Wenbo Liu, Zhen Northeastern Univ Coll Informat Sci & Engn Shenyang 110819 Liaoning Peoples R China

ISBN: (纸本)9789881563958

In order to solve the restrictions, imposed by the position sensor, on the application of the permanent magnet synchronous motor (PMSM) in the robot field, a rotor position estimation method based on super-twisting sliding mode observer (STSMO) is proposed. The observer is built according to the back electromotive force (EMIF) model after the back EMIF equivalent signal is obtained. In this way, not only are low-pass filter and phase compensation module eliminated, but also estimation accuracy is improved. Then, the Lyapunov stability analysis is carried out to verify the stability of SPMSM control system. Finally, Numerical simulations is carried out on Matlab/Simulink, the results demonstrate that the STSMO can effectively estimate rotor position and velocity, and the system has good dynamic and static performance.

关键词： SPMSM position sensorless control super-twisting sliding mode observer Lyapunov stability analysis

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sensorless control of Switched Reluctance Motor with Unknown Load Torque for EV Application using Extended Kalman Filter and Second Order Sliding Mode Observer 19

Sensorless control of Switched Reluctance Motor with Unknown...

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19th IEEE International Conference on Industrial Technologies (ICIT)

作者： Saadi, Yakoub Sehab, Rabia Chaibet, Ahmed Boukhnifer, Mousaa Diallo, Demba ESTACA Engn Sch Paris France Grp Elect Engn Paris GeePs Paris France

ISBN: (纸本)9781509059492

This paper deals with the sensorless position control of 8/6 Switched Reluctance Machine with unknown load torque input of an Electric Vehicle drivetrain based on Extended Kalman Filter and Second Order Sliding mode Observers. The both developed observers could be an excellent alternative to replace the analog position sensor, in case of high maintenance cost, limit lifecycle and safety-driving with a sensor default. The software position sensors consist of estimating the rotor position, the velocity and the unknown load torque of the SRM. The main advantage of the developed observers is to estimate online the variables over all the velocity operation range using only the current and voltage measurements of each phase. However, the proposed observers are implemented in a simulator. The simulation results confirm the reliability and the accuracy of the developed observers comparing to the real position, velocity, motor and load torques.

关键词： Electric Vehicle Switched Reluctance Machine position sensorless control Extended Kalman Filter Observer Second Order Sliding Mode Observer rotor position estimation velocity estimation machine torque estimation machine load torque estimation unknown input

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sensorless control of Switched Reluctance Motor for EV Application using a Sliding Mode Observer with Unknown Inputs 19

Sensorless control of Switched Reluctance Motor for EV Appli...

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19th IEEE International Conference on Industrial Technologies (ICIT)

作者： Saadi, Yakoub Sehab, Rabia Chaibet, Ahmed Boukhnifer, Mousaa Diallo, Demba ESTACA Engn Sch Laval France ESTACA Engn Sch Paris France Grp Elect Engn Paris GeePs Paris France

ISBN: (纸本)9781509059492

This paper deals with the sensorless position control of 8/6 Switched Reluctance Machine used in the drivetrain of an Electric Vehicle. The developed observer could be an excellent alternative to replace the analog position sensor, in case of high maintenance cost, limit lifecycle and safety-driving with a sensor default. The software position sensor based on Sliding Mode Observer consists of estimating the rotor position, the velocity and the torque of the SRM drive with a known and an unknown load torque. The main advantage of the developed observer is to estimate online the variables over all the velocity operation range using only the current and voltage measurements of each phase. However, the proposed observer is implemented in a simulator, where results confirm the reliability and the accuracy of the developed observer comparing to the real rotor position, velocity and machine torque.

关键词： Electric Vehicle Switched Reluctance Machine position sensorless control Sliding Mode Observer rotor position estimation velocity estimation machine torque estimation

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Quiet position sensorless Drive of IPMSM using Ultrasonic Three-phase Triangular-wave Carrier 44

Quiet Position Sensorless Drive of IPMSM using Ultrasonic Th...

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44th Annual Conference of the IEEE Industrial-Electronics-Society (IECON)

作者： Ishizuka, Ryosuke Kubota, Hisao Meiji Univ Grad Sch Sci & Technol Kawasaki Kanagawa Japan Meiji Univ Sch Sci & Technol Kawasaki Kanagawa Japan

ISBN: (纸本)9781509066841

This paper proposes a method for the removal of acoustic noise in position sensorless control using high-frequency three-phase triangular-wave carriers. In general, high-frequency voltage injection is used for sensorless control of permanent magnet synchronous motors in low-speed range. As control using three-phase triangular-wave carriers automatically generates the voltage of the carrier frequency component and induces the current of the same frequency, it is possible to realize sensorless vector control in the low-speed range without applying high-frequency voltage and to estimate the magnetic pole position from the current. This control method corresponds to not only the low-speed range but also the full-speed range. However, injection of a high-frequency voltage signal causes acoustic noise of the same frequency. To remove acoustic noise, the injecting voltage frequency is increased above the audible range. Moreover, as the current used for estimating the magnetic pole position is a high-frequency current and its values are small, it is considerably affected by the dead time and delay of switching devices. Therefore, by considering these two parameters and measuring the high-frequency current at the ideal point, the position estimation error was reduced. Experiments confirm the validity of the proposed method.

关键词： IPMSM position sensorless control Three-phase triangular-wave carrier FPGA Dead time compensation

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Power Electronics and control Technologies for Household Washer 8

Power Electronics and Control Technologies for Household Was...

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8th International Power Electronics Conference (IPEC-Niigata) / Energy Conversion Congress and Exposition (ECCE Asia)

作者： Niki, Toru Hitachi Appliances Inc Home & Echo Appliances Grp Taga Home Appliance Works Ibaraki Japan

ISBN: (纸本)9784886864055

This paper presents the motor control technology for household washers. Recently, customers have required not only basic functions (washing and drying performance), but also further advantages such as energy efficiency and saving water. Additionally, the customers require lower noise and vibration damping properties. To solve these requirements, we developed a multipole permanent magnet synchronous motor and control software with vector operation.

关键词： household washer parmanent magnet synchronous motor position sensorless control vector control

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