For pmsm drives with the fault of stator current sensor, a novel current sensorless mptc based on adaptive backstepping observer abo is proposed. Control of a dc motor using sensorless observer based sliding mode control method. Unfortunately the initialization and the optimal choice of covariance and gain matrix are delicate. The system allows fast and precise speed tracking over a wide range of torque. Research on sensorless control of pmsm based on sliding mode observer. Sensorless dtc of an induction motor based on intelligent. In order to solve this problem, the sliding mode technique with smooth function is used. Mras and luenberger observer based sensorless indirect vector control of induction motors article pdf available in asian journal of information technology 75. The proposed smo substitutes a sigmoid function for the conventional signum function with a variable boundary layer which is changed according to the rotational velocity. The voltage model in stator reference is the reference model, and the current model in estimated. Sensorless control for ipmsm based on adaptive supertwisting. Nonlinear stateobserver techniques for sensorless control of. Abstract sensorless control of permanent magnet synchronous motor has received a lot of research interest due to cost reduction and reliability improvement of the drive. Sensorless luenberger observer based sliding mode control of.
Permanent magnet synchronous drives observability analysis. Figure 3 shows the simulation diagram of natural observer based sensorless vector control with pi controller. Dc motor model without luenberger observer 0 the controller that is used is sliding mode controller and the control law for this dc motor is given by. The conventional reducedorder observer has large chattering on the speed and the torque. Among the solutions proposed are ways to eliminate the phase current sensors and use an observer for speed sensorless control. Sensorless luenberger observer based sliding mode control. Sensorless vector control techniques for efficient motor.
Improved sliding mode observer based sensorless control. Pdf irjetsensorless luenberger observer based sliding mode. Implementation of field oriented speed sensorless control of. Sensorless control of ac motor drives at low and zero. Pdf a novel approach to the design of backemf observer based. Improved sliding mode observer based sensorless control for pmsm weixin kanga and hong li school of instrument science and optoelectronics engineering, beihang university, beijing 83, china. In order to indirectly estimate the rotor position, the.
Slidingmode sensorless control has the advantage of strong robustness to parameter variations and external disturbances, as well as high dynamic performance, which is. Drm099, sensorless pmsm vector control with a sliding. Research on sensorless control of pmsm based on sliding mode. In this paper, an improved sliding mode observer smo is. Adaptive interconnected observerbased backstepping. There are used two models in mras observer to estimate the linkage flux with relatively clean waveforms.
This enables sinusoidal commutation or foc, fieldoriented control, with all its benefits. Adaptive interconnected observerbased backstepping control. Sliding mode observer based sensorless control of five phase pmsm in electric vehicle. The mean value theorem and sector nonlinearity approaches were implemented for a class of the lipchitz model of permanent magnet synchronous machine pmsm. Pdf speed sensorless observer based torque control of. The methods based on back emf are simple but doesnt work well in low. The dynamic performance of the drive during homing and open loop acceleration under current control is presented and investigated. Slidingmode observer based sensorless vector control of.
Observerbased sensorless control of permanent magnet synchronous motor for electrical vehicle. In modern day industry, robots are indispensable for achieving high production rates and competitiveness. Thus, developing its sensorless control for engineering applications is necessary. A new strategy for ipmsm sensorless control based on an adaptive supertwisting slidingmode observer and improved phaselocked loop is proposed in this paper. A load current sensorless control strategy using an optimized observer is designed for a threephase online transformerbased ups. Speed sensorless field oriented control of induction.
In order to further improve the performance of sliding. A robust backstepping sensorless control for interior. Pdf sensorless control of permanent magnet synchronous motor has received a lot of research interest due to cost reduction and reliability. It is typically computerimplemented, and provides the basis of many practical applications. Another approach proposed in 7 10 to estimate the state variables in a pmsm is the use of sliding mode observer smo. The dependence to motor parameters and chattering effects that. Overview general principles problems of sensorless control at low speed.
Pdf position sensorless vector control of pmsm drives. A luenberger state observer for simultaneous estimation of. In this work, different sensorless control methods were developed for different speed regions. Sliding mode observer based sensorless control of five phase. This paper presents the development and dsp implementation of the speed estimators for applications in sensorless drives with induction motor. Pdf observerbased sensorless speed control of pmsm. Sensorless dc motor drive via optimal observerbased servo. Sensorless control of pmsm based on extended kalman filter zheng zedong epe 2007 aalborg isbn. Nonlinear stateobserver techniques for sensorless control. Measurement and control the fullorder state observer the. Reducedorder sliding mode observerbased speed sensorless. A special interest is given to the standstill operation.
Sw written in ccode using a few library algorithms available for the mc56f80 and mc56f8346 hw based on freescale universal motor control hw. Even so, mptc has not yet been applied to current sensorless pmsm drive system. Oct 30, 2019 the focus of this paper is on the notion of an extended observer based on a state feedback controller. A luenberger state observer for simultaneous estimation of speed and rotor resistance in sensorless indirect stator flux orientation control of induction motor drive mabrouk jouili1, kamel jarray2, yassine koubaa1 and mohamed boussak3, senior member, ieee. The local observability of sensorless permanent magnet synchronous drives is studied in this paper. This paper proposes an alternative design of a sensorless dc motor drive via optimal observerbased servo control. Several assistive algorithms, including an online observer parameter adaption scheme, a model. Sensorless control for nonsinusoidal fivephase ipmsm.
The adaptive interconnected observer, developed in the sequel for the sensorless spmsm, is based on the interconnection between several observers satisfying some required properties, in particular the property of input persistence. In this paper, an improved sliding mode observer smo is proposed to guarantee the position detection accuracy of the permanent magnet synchronous motor. Current sensorless model predictive torque control based. This paper develops a model reference adaptive system mras based observer for sensorless vector control of permanent magnet synchronous motor pmsm drives. A closedloop observer containing state feedback is constructed based on the improved state space model of the inverter circuit. Position and speed sensorless control of pmsm drives based on. The observer depends heavily on a model of the pmsm. Observer or model based emf methods use information about the motor current to determine rotor position and speed. The transition from open loop acceleration to observerbased sensorless operation is discussed and the stability of sensorless control against load disturbances. A speed sensorless vector control method based on parameters identification with the fullorder adaptive state observer is proposed in this paper. One of the applied techniques is luenberger observer. This article presents a new speed observer based on fuzzy logic for speed sensorless control applications of permanent magnet synchronous motor pmsm. Due to the limitations of hall sensing or encoder based control in terms of increased machine size, reduced reliability and higher noise, sensorless methods are preferred 5. Observerbased load current sensorless control strategy of.
Verifying proposed flc fullorder luenberger observer using both numerical. Abstract motion sensorless control techniques of electrical drives are attracting more attention in different industries. Sensorless kinesthetic teaching of robotic manipulators assisted by observer based force control abstract. Research on sensorless control of pmsm based on sliding. Velocity control of dc motor is an important issue and a shorter settling time is desired. Real time implementation of adaptive sliding mode observer. Sensorless control of pmsm based on extended kalman filter zedong zheng 1,2. Sensorless control of ac motor drives at low and zero frequency professor greg asher power electronics, machines and control group. The modelbased approach yields a much higher resolution of the rotor position. Secondorder slidingmode mras observerbased sensorless vector control of linear induction motor drives for mediumlow speed maglev applications abstract. This paper presents a speed estimation scheme by combining a secondorder slidingmode observer smo with the model reference adaptive system mras in the sensorless vectorcontrolled. Sliding mode observer based sensorless control of bldc motor under dtc scheme girija p k 1, prince a 2 pg student, dept. In the model reference adaptive system of ac motor, the stator resistance and rotor flux are assigned as state variables to build the reference model, and a fullorder flux observer is introduced to.
Higher efficiency, lower heat generation, less vibration. Sensorless field oriented control of 3phase induction motors using control law accelerator cla. Sliding mode observer based sensorless control of bldc motor. Article sensorless control for ipmsm based on adaptive. Secondorder slidingmode mras observer based sensorless vector control of linear induction motor drives for mediumlow speed maglev applications abstract. In this study, luenberger observer lo with a model reference adaptive system mras are associated for a sensorless vector control of an induction motor im. In traditional sensorless control of the interior permanent magnet synchronous motors ipmsms for medium and high speed domains, a control strategy based on a slidingmode observer smo and phaselocked loop pll is widely applied. Permanent magnet synchronous drives observability analysis for motionsensorless control mohamad koteich, student member, ieee, abdelmalek maloum, gilles duc and guillaume sandou keywords sensorless control, synchronous motor, induction motor, ac machine. Position and speed sensorless control of pmsm drives based. The transition from open loop acceleration to observer based sensorless operation is discussed and the stability of sensorless control against load disturbances is discussed. Since these methods do nonlinear state observer techniques for sensorless control of automotive pmsms, including load torque estimation and saliency bhangu bikramjit. The model based approach yields a much higher resolution of the rotor position. Position sensorless control of pmsm basedonanovel sliding.
Sensorless control, synchronous motor, induction motor, ac machine. Speed sensorless control of dfig based mras observer. Sensorless vector control techniques for efficient motor control continues. It is shown by an extensive study that this adaptive observer is completely satisfactory. In this paper a reducedorder sliding mode observer based speed sensorless vector control of a double stator induction motor dsim is presented. Obtaining the observer gain matrix based on conventional stability theory. A simple feedback matrix design method is then applied to the observer according to the deadbeat.
An improved flux observer based on pll frequency estimator for sensorless vector control of induction motors mihai comanescu, studentmember,ieee, and longya xu, fellow,ieee abstractthis paper presents an improved method of. An extended observer basedcontroller applied to sensorless. Chatteringfree sliding mode observer for speed sensorless control. Sensorless kinesthetic teaching of robotic manipulators assisted by observerbased force control abstract. Sensorless control of pmsm based on extended kalman filter. An extended sliding mode observer for speed, position and. Secondorder slidingmode mras observerbased sensorless. Observer or modelbased emf methods use information about the motor current to determine rotor position and speed. Proceedings of the 14th international middle east power systems conference mepcon10, cairo university, egypt, december 1921, 2010, paper id 210. Speed sensorless observer based torque control of induction motor. The main problem of the pmsm observerbased sensorless techniques is the.
A novel sliding mode observer smo of pmsmpermanent magnetic synchronous motor was presented, which estimated the rotor position and angular velocity accurately. A speedsensorless vector control method based on parameters identification with the fullorder adaptive state observer is proposed in this paper. Designing a proper adaptive scheme based on fuzzylogic control flc to estimate linear speed. In the medium and highspeed regions, quasislidingmode observerbased position estimators were proposed to obtain rotor position information.
Improved sliding mode observer based sensorless control for pmsm. The goal of sensorless fieldoriented control is to acquire the necessary highresolution rotor position estimate using only values that are readily sensed at the motor controller itself, namely voltage and current. Performance analysis of sensorless controlled bldc motor. The input persistence is related to the observability properties of system 34. Pdf irjetsensorless luenberger observer based sliding.
This paper proposes an alternative design of a sensorless dc motor drive via optimal observer based servo control. The transition from open loop acceleration to observerbased sensorless operation is discussed and the stability of sensorless control against load disturbances is discussed. Pdf control of a dc motor using sensorless observer. This paper describes sensorless dtc of brushless dc bldc motor drive operating in constant torque region under two phase conduction mode to get instantaneous torque control. In this paper a reducedorder sliding mode observerbased speed sensorless vector control of a double stator induction motor dsim is presented. It is the abovementioned advantages of mptc that motivates this paper. Flux observerbased sensorless fieldoriented control of. Speed sensorless field oriented control of induction machines using flux observer hisao kubota and kouki matsuse dept. An extended observer basedcontroller applied to sensorless pmsm drive.
Sliding mode observer smo which is robust to parameter uncertainties is proposed to estimate the phasetophase trapezoidal backemf for the sensorless operation. A theoretical background on field oriented motor control principle incremental build levels based on modular software blocks experimental results contents. Pdf control of a dc motor using sensorless observer based. Direct field oriented sensorless vector control scheme is used and the rotor angle is calculated from the estimated rotor fluxes. These matrixes play a critical role in robustness of the efk. An improved flux observer based on pll frequency estimator. In the first group, the rotor position can be estimated by using inductance variations due to the magnetic saturation andor saliency of pmsm. The paper investigates various nonlinear observerbased rotor position estimation schemes for sensorless control of permanent magnet synchronous motors. Sensorless control for ipmsm based on adaptive super. Since these methods do nonlinear stateobserver techniques for sensorless control of automotive pmsms, including load torque estimation and saliency bhangu bikramjit. An extended observerbased robust nonlinear speed sensorless. Home applied mechanics and materials mechanical components and control engineering iii research on sensorless control of pmsm based on.
Pdf improved sliding mode observer based sensorless control for. Sensorless kinesthetic teaching of robotic manipulators. A sensorless velocity control system for dc motor is developed. Sensorless control of pmsm based on sliding mode observer. Observerbased sensorless control of permanent magnet. Article sensorless control for ipmsm based on adaptive super. In control theory, a state observer is a system that provides an estimate of the internal state of a given real system, from measurements of the input and output of the real system. The voltage model in stator reference is the reference model, and the current model in estimated rotor reference is the adaptive. A novel sliding mode observersmo of pmsmpermanent magnetic synchronous motor was presented, which estimated the rotor position and angular velocity accurately. Sliding mode observer based sensorless control of bldc.
Next, an observer scheme that takes account of the full nonlinear dynamic characteristics of the motor, is considered. However, starting the drive from unknown initial position and from standstill are not sufficiently covered. Position sensorless vector control of pmsm drives based on sliding mode observer conference paper pdf available december 2015 with 349 reads how we measure reads. This paper presents the details of starting the drive from. Frus and kuo 4 first intilaized the milstone research in sensorless control. This paper presents a speed estimation scheme by combining a secondorder slidingmode observer smo with the model reference adaptive system mras in the sensorlessvectorcontrolled.
Remaining driving range estimation for electric vehicles through information fusion method. This work focuses on the problem of observerbased robust speed sensorless control of a 3phase permanent magnet synchronous motor pmsm. A robust backstepping sensorless control for interior permanent magnet synchronous motor using a supertwisting based torque observer shaofang wu, jianwu zhang and benben chai abstract in order to achieve highperformance speed regulation for sensorless interior permanent magnet synchronous motors. Research on sensorless control of pmsm based on sliding mode observer p. Sensorless pmsm vector control with a sliding mode observer for compressors using mc56f80, rev. Based on this, an observer based fuzzy double loop integral sliding mode control ofdlismc law, including internal loop and external loop, is derived. Speed sensorless field oriented control of induction machines. Sensorless field oriented control of 3phase induction. Pdf mras and luenberger observer based sensorless indirect. Flux observerbased sensorless fieldoriented control of surface. A simple feedback matrix design method is then applied to the observer according to the deadbeat control law, and the load current. A novel approach to the design of backemf observer based sensorless control of nonsalient pmsm. Verifying proposed flc fullorder luenberger observer using both numerical simulation and realtime hardwareintheloop hil test. Fullorder luenberger observer based on fuzzylogic control.
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