Modeling and Analysis of 7-Phase BLDC Motor Drives

Song, Sang‐Hoon; Yoon, Yong‐Ho; Lee, Byoung-Kuk; Won, Chung-Yuen

doi:10.5370/kiee.2014.63.4.575

Cited by 2 publications

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Kim et al [6] made up for the problem that the traditional phase advance control method cannot compensate for the slowly rising phase current. Song et al [7] introduced a phase interleaving method to control seven-phase BLDCM by using a six-phase excitation method. The proposed control method for improving motor efficiency can be applied to other multi-phase BLDC.…”

Section: Introductionmentioning

confidence: 99%

Study on the Energizing Mode of Marine Seven-Phase Permanent Magnet Brushless DC Motor

Long

Xie

2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

The permanent magnet brushless DC propulsion motor is highly efficient and energy-saving and can be widely used in the electric propulsion system of ships. Therefore, taking the marine seven-phase permanent magnet brushless DC propulsion motor as the main research object, the basic structure of the motor is analyzed, the states of the seven-phase conduction, six-phase conduction, and five-phase conduction modes are listed, and mathematical models of the three different conduction modes are studied. Finally, the current fluctuation of the six-phase conduction mode is smaller through simulation. The speed is more stable, and the advantages are greater, which provides a reference for the application of a seven-phase permanent magnet brushless DC propulsion motor in marine power.

show abstract

Section: Introductionmentioning

confidence: 99%

Study on the Energizing Mode of Marine Seven-Phase Permanent Magnet Brushless DC Motor

Long

Xie

2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

A Study on New Current Control Method for Square Current Wave in Y Connected 7-Phase BLDC Motor Drive System

Moon¹,

Lee²,

Kim³

2016

The Transactions of The Korean Institute of Electrical Engineer

View full text Add to dashboard Cite

-The current control methods of Y-connected 7 Phase BLDC motor are sine wave current control and square wave control. The sine wave current control method needs dq axis transformation of 7x7 matrix for current control and very complex. Also this method is not suitable for multi Phase BLDC motor of trapezoidal back emf wave. Therefore, in Y connected multi phase BLDC motor, the square wave current control methods are required. Generally, in the 3Phase BLDC system, Average current control method is used for current control. The average current is obtained that the summation of absolute value of each phase current magnitude is divided by the number of conduction phase. However, if average current control method is applied to multi-phase system, there is a problem that each phase currents are different. This problem affects unbalance of each phase torque and fluctuation of total torque. This paper proposed each phase current control method of Y connected 7Phase BLDC system. Proposed method is used for PI controller of each phase for each phase current control. This method can perfect square wave current control. Also, configuration of the method is easier than DQ axis transformation. Proposed method is verified through simulation and experiments.

show abstract

Modeling and Analysis of 7-Phase BLDC Motor Drives

Cited by 2 publications

References 4 publications

Study on the Energizing Mode of Marine Seven-Phase Permanent Magnet Brushless DC Motor

Study on the Energizing Mode of Marine Seven-Phase Permanent Magnet Brushless DC Motor

A Study on New Current Control Method for Square Current Wave in Y Connected 7-Phase BLDC Motor Drive System

Contact Info

Product

Resources

About