Abstract
This paper illustrates regenerative battery charging control method of the permanent magnet synchronous motor (PMSM) drive without DC/DC converter. Conventional control methods for battery current and voltage control methods generally use a bidirectional DC/DC converter for regenerative control. The reason to use this DC/DC converter is the DC-Link current ripple of the inverter of is affected by switching of the inverter and the motor speed. This problem causes to use a low pass filter (LPF) for sensing the DC-link current, however, it occurs deteriorating the control performance. In this paper, battery current and voltage control methods using only the motor drive are illustrated. To control the DC-link current, power control is performed using the look-up table (LUT) data that are extracted from the experiment. In addition, an applicable method for the variable DC-link voltage of the proposed regenerative control method is illustrated.
Highlights
Electrical components in vehicles are continuously modified to suit specific needs and requirements, and enhance drive efficiency [1,2,3]
In order to verify the validity of the constant current (CC)-constant voltage (CV) regenerative control in an integrated starter and generator (ISG) system, we created experimental setup (Figure 11)
This paper proposes regenerative battery current and voltage control methods for permanent magnet synchronous motor (PMSM) drive
Summary
Electrical components in vehicles are continuously modified to suit specific needs and requirements, and enhance drive efficiency [1,2,3]. A variety of electrical systems are used in vehicles and operating motors to improve fuel efficiency and performance. This has led to a rise in electric power consumption, especially with the application of active steering, suspension systems, and braking devices; mechanical or hydraulic motors are being replaced by electric drive systems. A permanent magnet synchronous motor (PMSM) drive for integrated starter and generator (ISG), have certain advantages. It propels initial driving power, and reduces fuel consumption with an idle stop and go function. An ISG implements regenerative braking, which improves fuel efficiency by recovering some of the energy lost during conventional braking [4,5,6]
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