New approaches with sensorless drives

Tatemarsu, K.; Hamada, D.; Uchida, Kenko; Wakao, Shinji; Onuki, Takashi

doi:10.1109/2943.847915

Cited by 16 publications

(11 citation statements)

References 6 publications

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“…However, these position transducers lead to higher cost, larger volume and weight, and moreover lower system reliability. Many sensorless control strategies have been developed for the motor drives over the years [17] - [24]. In [25], a design methodology for a PM motor sensorless vector control scheme using a two-stage approach is presented.…”

Section: Literature Survey and Research Challengesmentioning

confidence: 99%

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Unified control for the permanent magnet generator and rectifier system

Zhang

Wang

et al. 2011

2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

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The structure of a permanent magnet generator (PMG) connected with an active front-end rectifier is very popular in the AC-DC architecture. Especially for certain applications like aircraft and vehicles, power density and efficiency is critical. Since the generator and the rectifier can be controlled simultaneously, it would be very desirable to develop a unified control. With this unified control, the boost inductors between the PMG and rectifier is eliminated, which significantly reduce the volume and the weight of the whole system and improve the system power density. Also the system efficiency can be improved with appropriate control strategy.In this thesis, a unified control for the permanent magnet generator and rectifier system is presented. Firstly, the unified model of the PMG and rectifier system is given as the basis to design the control system. Secondly, a unified control method for PMG and rectifier system is introduced. The design procedure for each control loops are presented in detail, including current control loop, voltage control loop, reactive control loop and speed and rotor position estimator loop. Thirdly, the hardware is developed and the experiment is conducted to verify the control strategy. Fourthly, a method to optimize the overall system efficiency by appropriate reactive power distribution is proposed. The two cases when the DC link voltage is flexible and the DC link voltage is fixed are considered.iii

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Section: Literature Survey and Research Challengesmentioning

confidence: 99%

“…The PMG back EMF voltages in the estimated reference frame is given by (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18) and (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19).…”

Section: Instantaneous Reactive Power Loop Controlmentioning

confidence: 99%

Unified control for the permanent magnet generator and rectifier system

Zhang

Wang

et al. 2011

2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

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“…Also, Bolognani and colleagues [14] proposed a rotor position estimation algorithm with an extended Kalman filter. Tatematsu and colleagues [15] presented a sensorless driver that estimates the rotation speed by using a low-level linear observer. In addition, an algorithm for rotor position estimation using the current vector when power is supplied again has been reported [16].…”

Section: Introductionmentioning

confidence: 99%

“…One approach is to estimate the initial rotor position without position sensors in the stopped state of the rotor [7][8][9][10]. The other approach is that, after the BLDC motor rotates, the BLDC motor speed is controlled without position sensors [11][12][13][14][15][16][17][18][19][20][21][22]. The latter approach is especially considered in this paper.…”

Section: Introductionmentioning

confidence: 99%

“…However, these position sensors are very expensive, and produce complex problems involving motor assemblers, and wiring between a sensor board and a drive circuit. Thus, many efforts to realize light weight, compact size, and low price of BLDC motors without position sensors have been reported [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

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A sensorless drive system for brushless DC motors using a digital phase‐locked loop

Amano

Tsuji

Takahashi

et al. 2002

Electrical Engineering Japan

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SUMMARYThis paper proposes a sensorless drive system for Brushless DC (BLDC) motors using a Digital PhaseLocked Loop (DPLL). The Back Electromotive Force (BEMF) voltage is measured from the motor winding to determine the permanent magnet rotor position using the DPLL, and Pulse Width Modulation (PWM) limits the motor current to control the speed of BLDC motors. The proposed method can drive BLDC motors using an openloop control without stepping out. Also, the proposed method is compared experimentally with a control method that uses Hall sensors. Experimental results for the BLDC motor show the effectiveness of the proposed method.

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Position/Speed Sensorless Control of AC Machines

Sul¹

2010

Control of Electric Machine Drive Systems

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New approaches with sensorless drives

Cited by 16 publications

References 6 publications

Unified control for the permanent magnet generator and rectifier system

Unified control for the permanent magnet generator and rectifier system

A sensorless drive system for brushless DC motors using a digital phase‐locked loop

Position/Speed Sensorless Control of AC Machines

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