Sensorless High-Precision Position Correction Strategy for a 100 kW@20 000 r/min BLDC Motor With Low Stator Inductance

Chen, Shaohua; Sun, Weiji; Wang, Kun; Liu, Gang; Zhu, Lianqing

doi:10.1109/tii.2018.2793947

Cited by 29 publications

(11 citation statements)

References 27 publications

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“…In most of the sensorless operations, conventional RC filter 13,40 based indirect back EMF detection is used. Transfer function G s ð Þ, phase delay θ d N ð Þ, and cutoff frequency f 0 of these LPFs for the drive operating at speed N rpm as shown in Figure 1 are given by, 27…”

Section: Various System Delays and Commutation Errorsmentioning

confidence: 99%

“…In most of the sensorless operations, conventional RC filter 13,40 based indirect back EMF detection is used. Transfer function

G ((), s)

, phase delay

θ_{d} ((), N)

, and cutoff frequency

f_{0}

of these LPFs for the drive operating at speed N rpm as shown in Figure 1 are given by, 27

({, \begin{array}{l} G ((), s) = \frac{V_{o} ((), s)}{V_{in} ((), s)} = \frac{R_{2}}{R_{1} + R_{2} + {sR}_{1} R_{2} C} \\ θ_{d} ((), N) = - \arctan ((), \frac{2 π {italicNR}_{1} R_{2} CP}{60 (R_{1} + R_{2})}) \\ f_{0} = \frac{R_{1} + R_{2}}{2 π R_{1} R_{2} C} \end{array})

where,

V_{o} ((), s)

is output voltage of filter in ‘ s ’ domain,

V_{in} ((), s)

is input line‐to‐virtual neutral voltage,

R_{1}

and

R_{2}

are filter resistances,

C

is filter capacitance. The phase delay in RC filter based detection circuit increases with increase in speed as shown in Equation (1).…”

Section: Various System Delays and Commutation Errorsmentioning

confidence: 99%

See 1 more Smart Citation

Sensorless control of high‐speed BLDC motor using equal area criterion based precise commutation scheme with Fuzzy based phase delay compensation

Soni

Tripathi

2021

Int Trans Electr Energ Syst

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show abstract

Section: Various System Delays and Commutation Errorsmentioning

confidence: 99%

“…In most of the sensorless operations, conventional RC filter 13,40 based indirect back EMF detection is used. Transfer function

G ((), s)

, phase delay

θ_{d} ((), N)

, and cutoff frequency

f_{0}

of these LPFs for the drive operating at speed N rpm as shown in Figure 1 are given by, 27

({, \begin{array}{l} G ((), s) = \frac{V_{o} ((), s)}{V_{in} ((), s)} = \frac{R_{2}}{R_{1} + R_{2} + {sR}_{1} R_{2} C} \\ θ_{d} ((), N) = - \arctan ((), \frac{2 π {italicNR}_{1} R_{2} CP}{60 (R_{1} + R_{2})}) \\ f_{0} = \frac{R_{1} + R_{2}}{2 π R_{1} R_{2} C} \end{array})

where,

V_{o} ((), s)

is output voltage of filter in ‘ s ’ domain,

V_{in} ((), s)

is input line‐to‐virtual neutral voltage,

R_{1}

and

R_{2}

are filter resistances,

C

is filter capacitance. The phase delay in RC filter based detection circuit increases with increase in speed as shown in Equation (1).…”

Section: Various System Delays and Commutation Errorsmentioning

confidence: 99%

Sensorless control of high‐speed BLDC motor using equal area criterion based precise commutation scheme with Fuzzy based phase delay compensation

Soni

Tripathi

2021

Int Trans Electr Energ Syst

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show abstract

“…But there are more ripples in the torque which causes the motor torque cogging and the waveforms will be imperfect [9]. So, the sensor less direct torque control technique is designed in [8].…”

Section: Fig 1 the Electric Vehicle Systemmentioning

confidence: 99%

Design of Adaptive Fuzzy PI Controller for Electric Vehicle with BLDC Drives

Soundarya¹,

Sharma²,

Balasundar³

et al. 2019

IJITEE

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Electric vehicles in concern with its innumerable advantages, replaces the internal combustion engine vehicles (ICEV). The efficiency and performance of the Electric Vehicle (EV) depends mainly on the electric motor and its control technique. The Brushless DC (BLDC) Motor is used as the electric motor in the EV as it has high efficiency and high starting torque. The sensorless direct torque control technique is used to enhance the performance of the EV. The Adaptive Fuzzy PI (AFPI) Controller is the proposed controller in the EV. The comparison of reference torque and actual torque produce the error. It is applied to the AFPI controller which produces an output of reference torque. The EV with stationary reference frame theory of direct torque control with AFPI controller is simulated using MATLAB/SIMULINK.

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“…In order to obtain a more accurate commutation point of the sensorless method to reduce the phenomenon of high current ripple and motor power consumption, a large number of researchers have invented various sensorless control methods in the past decades to correct the inevitable commutation point error [24][25][26][27][28][29][30][31]. Jang et al used the proportion-integration (PI) controller to adjust the voltage difference between the front and rear ends of the back-EMF in a conduction interval to compel the elimination of commutation error indirectly.…”

Section: Introductionmentioning

confidence: 99%

“…Then, a robust compensation optimisation method based on current index is proposed to minimise the time of commutation error [26]. Chen et al analysed the main factors affecting rotor position detection and commutation accuracy, deduced the relationship between commutation error and phase current deviation and proposed a sensorless high‐precision position correction strategy based on non‐commutation phase current [27]. In summary, the aforementioned methods indirectly correct commutation errors by adjusting some variables that can reflect commutation errors, such as voltage and current.…”

Section: Introductionmentioning

confidence: 99%

Commutation error rapid compensation for brushless DC motor based on DC‐link current phase extraction method

Liu

Chen

Zheng

et al. 2020

IET Electric Power Applications

Self Cite

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In order to reduce the torque ripple and running loss caused by the commutation error in the brushless DC motor (BLDCM) of the magnetically suspended control moment gyroscope (MSCMG), this study proposes a novel method dealing with commutation error in sensorless controlled BLDCM by rapid phase extraction and compensation technique. First, a traditional virtual neutral point circuit consisted of three-phase resistance network and low-pass filter are used to obtain the zero-crossing points of the non-conducting phase back electromotive force without noise interference. Then, an improved phase extraction method is built after analysing the DC-link current. Commutation error is extracted from DC-link current with the improved phase extractor rapidly. Furthermore, the effect of speed offset caused by fluctuation during phase extraction is also analysed and an adaptive commutation error compensation method based on the DC-link current phase extraction is proposed. Finally, simulation and experimental results performed on the high-speed motor of MSCMG verify its effectiveness and rapidity. The main novelties of this study are the direct phase extraction algorithm with natural parameter insensitivity and robustness and the rapid iterative commutation error compensation method based on the extraction algorithm.

show abstract

Sensorless High-Precision Position Correction Strategy for a 100 kW@20 000 r/min BLDC Motor With Low Stator Inductance

Cited by 29 publications

References 27 publications

Sensorless control of high‐speed BLDC motor using equal area criterion based precise commutation scheme with Fuzzy based phase delay compensation

Sensorless control of high‐speed BLDC motor using equal area criterion based precise commutation scheme with Fuzzy based phase delay compensation

Design of Adaptive Fuzzy PI Controller for Electric Vehicle with BLDC Drives

Commutation error rapid compensation for brushless DC motor based on DC‐link current phase extraction method

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