A Simplified Sensorless Vector Control Based on Average DC Bus Current for Fan Motor

Sumita, Satoshi; Tobari, Kazuaki; Aoyagi, Shigehisa; Maeda, Daisuke

doi:10.1541/ieejias.130.1233

Cited by 5 publications

(5 citation statements)

References 8 publications

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“…In this case, 𝑖𝑖 𝑞𝑞 is obtained according to Eq. ( 1) using 𝐼𝐼 𝐷𝐷𝐷𝐷 , 𝐸𝐸 𝐷𝐷𝐷𝐷 , and 𝑣𝑣 𝑞𝑞 [12]. However, when 𝑖𝑖 𝑑𝑑 is not zero, 𝑖𝑖 𝑑𝑑 and 𝑖𝑖 𝑞𝑞 cannot be detected separately.…”

Section: Principle Of the Proposed Methodsmentioning

confidence: 99%

“…In these cases, the harmonics contained in the phase currents tend to increase compared to the conventional triangular carrier wave. current through an analog low-pass filter, detect the current as the average current, and then convert it to the torque current [12]. Although this method does not require consideration of the ringing phenomenon, it has the problem that the exciting current component of the motor cannot be detected.…”

Section: Introductionmentioning

confidence: 99%

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Motor Current Reconstruction Method Using Single Shunt Resistance by High-Frequency Voltage Injection

Mitsui

Iwaji

2023

IEEJ Journal IA

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This paper describes a novel method for current detection in sensorless control using high-frequency voltage injection. The proposed method adopts a low-pass filter to prevent ringing. Generally, reactive current cannot be detected using a DC filter; however the proposed method permits detection via voltage injection. High responsiveness and a simple construction have been achieved using the method. Simulation results indicate that active and reactive currents can be reconstructed using a single shunt current; the experimental results indicate that the proposed method can be applied to a motor drive without lowering the performance, unlike when using a current sensor.

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Section: Principle Of the Proposed Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Motor Current Reconstruction Method Using Single Shunt Resistance by High-Frequency Voltage Injection

Mitsui

Iwaji

2023

IEEJ Journal IA

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“…Current vector control is normally used to drive PMSM. With this method, ac currents are projected onto d – q coordinates synchronized to magnetic pole position, thus making possible fast response and high efficiency: however, the problem is high cost because of position sensors . Thus, current vector control is widely employed in main motors where reduction of fuel consumption has a great effect, but rarely employed in auxiliary motors where cost requirements are stricter.…”

Section: Introductionmentioning

confidence: 99%

High‐performance V/f control of PMSM using state feedback control based on n–t coordinate system

Matsuki¹,

Doki

2019

Electrical Engineering Japan

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This paper proposes a new V/f control method for permanent magnetic synchronous motors (PMSMs) without a position sensor. The proposed method uses state feedback control based on an n–t coordinate system, and controls rotational speed and the voltage amplitude. The t‐axis is a tangent line of a constant voltage ellipse, and the n‐axis is a normal line of the ellipse. The t‐axis current is utilized to place the poles of the transfer function at the desired position at low‐speed and high‐speed conditions. The effectiveness of the proposed method was verified by simulation and experimental results.

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“…2 Thus, current vector control is widely employed in main motors where reduction of fuel consumption has a great effect, but rarely employed in auxiliary motors where cost requirements are stricter. With this method, ac currents are projected onto d-q coordinates synchronized to magnetic pole position, thus making possible fast response and high efficiency: however, the problem is high cost because of position sensors.…”

Section: Introductionmentioning

confidence: 99%

“…With this method, ac currents are projected onto d-q coordinates synchronized to magnetic pole position, thus making possible fast response and high efficiency: however, the problem is high cost because of position sensors. 2 Thus, current vector control is widely employed in main motors where reduction of fuel consumption has a great effect, but rarely employed in auxiliary motors where cost requirements are stricter. Auxiliary motor drives must be free of position sensors and implementable on low-performance inexpensive microcontrollers.…”

Section: Introductionmentioning

confidence: 99%

High Performance V/f Control of PMSM Using State Feedback Control Based on n-t Coordinate System

Matsuki

Doki

2018

IEEJ Trans. IA

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This paper proposes a new V/f control method for permanent magnetic synchronous motors (PMSMs) without a position sensor. The proposed method uses state feedback control based on an n-t coordinate system, and controls rotational speed and the voltage amplitude. The t-axis is a tangent line of a constant voltage ellipse, and the n-axis is a normal line of the ellipse. The t-axis current is utilized to place the poles of the transfer function at the desired position at low-speed and high-speed conditions. The effectiveness of the proposed method was verified by simulation and experimental results. K E Y W O R D S coordinate system, PMSM, state feedback control, V/f control Electr Eng Jpn. 2019;206:55-65.

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A Simplified Sensorless Vector Control Based on Average DC Bus Current for Fan Motor

Cited by 5 publications

References 8 publications

Motor Current Reconstruction Method Using Single Shunt Resistance by High-Frequency Voltage Injection

Motor Current Reconstruction Method Using Single Shunt Resistance by High-Frequency Voltage Injection

High‐performance V/f control of PMSM using state feedback control based on n–t coordinate system

High Performance V/f Control of PMSM Using State Feedback Control Based on n-t Coordinate System

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