17846655. MOTOR DRIVING APPARATUS simplified abstract (Hyundai Motor Company)
Contents
MOTOR DRIVING APPARATUS
Organization Name
Inventor(s)
Kang Ho Jeong of Hwaseong-si (KR)
Sang Cheol Shin of Suwon-si (KR)
Hyeon Gyu Choi of Seongnam-si (KR)
MOTOR DRIVING APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 17846655 titled 'MOTOR DRIVING APPARATUS
Simplified Explanation
The patent application describes a motor driving apparatus that drives a motor with multiple windings corresponding to multiple phases. It includes a first inverter connected to one end of each winding, a second inverter connected to the other end of each winding, and a controller.
- The first inverter has multiple first switching elements, and the second inverter has multiple second switching elements.
- The controller combines switching vectors to create a voltage command for the motor, ensuring that the difference between the common mode voltage of the first inverter and the common mode voltage of the second inverter is zero.
- The controller controls the first and second switching elements using a pulse width modulation method based on the obtained vector.
Potential Applications
- Electric vehicles: This motor driving apparatus can be used in electric vehicles to efficiently control the motor and improve overall performance.
- Industrial machinery: The apparatus can be applied to various industrial machinery, such as pumps, compressors, and conveyor systems, to enhance their motor driving capabilities.
Problems Solved
- Common mode voltage difference: The apparatus addresses the issue of common mode voltage difference between the first and second inverters, ensuring it is zero. This helps in reducing electrical noise and improving motor performance.
- Efficient motor control: The pulse width modulation method used by the controller allows for precise control of the motor, resulting in improved efficiency and performance.
Benefits
- Improved motor performance: By controlling the common mode voltage difference and using pulse width modulation, the apparatus enhances the performance of the motor, leading to smoother operation and reduced energy consumption.
- Reduced electrical noise: The apparatus helps in minimizing electrical noise generated during motor operation, resulting in a quieter and more reliable motor system.
- Versatile applications: The motor driving apparatus can be applied to various motor-driven systems, making it a versatile solution for different industries.
Original Abstract Submitted
A motor driving apparatus which drives a motor including a plurality of windings corresponding to a plurality of phases, respectively, includes: a first inverter including a plurality of first switching elements and connected to a first end of each of the windings; a second inverter including a plurality of second switching elements and connected to a second end of each of the windings; and a controller obtaining a vector corresponding to a voltage command of the motor by combining switching vectors which cause difference between a common mode voltage of the first inverter and a common mode voltage of the second inverter to be zero and configured to control the plurality of first switching elements and the plurality of second switching elements in a pulse width modulation method based on the obtained vector.
