18547806. MOTOR CONTROL DEVICE simplified abstract (OMRON Corporation)
Contents
MOTOR CONTROL DEVICE
Organization Name
Inventor(s)
Masashi Doi of Kyoto-shi, KYOTO (JP)
Takeo Nishikawa of Kyoto-shi, KYOTO (JP)
Takeshi Ashida of Kyoto-shi, KYOTO (JP)
Hiroyuki Tokusaki of Kyoto-shi, KYOTO (JP)
Liangyu Shen of Kyoto-shi, KYOTO (JP)
MOTOR CONTROL DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18547806 titled 'MOTOR CONTROL DEVICE
The patent application describes a motor controller that utilizes multiple inverters to power various motors through pulse width modulation control, along with a direct current power supply and a capacitor connected in parallel to the power supply.
- The inverters are grouped based on switching frequency, with each group having corresponding triangular wave signals for control.
- The triangular wave signals are determined by a reference frequency assigned to the group, with variations in frequency or phase among the signals.
- This system allows for precise control and coordination of multiple motors in a single controller setup.
Potential Applications: - Industrial automation systems - Electric vehicle powertrains - Renewable energy systems
Problems Solved: - Efficient and synchronized control of multiple motors - Reduction of electromagnetic interference - Improved energy efficiency in motor operations
Benefits: - Enhanced motor performance and reliability - Simplified motor control system design - Energy savings and reduced operational costs
Commercial Applications: Title: "Advanced Motor Controller for Industrial Automation and Electric Vehicles" This technology can be applied in various industries such as manufacturing, automotive, and renewable energy sectors, offering improved motor control and energy efficiency.
Questions about the technology: 1. How does the grouping of inverters based on switching frequency improve motor control efficiency? 2. What are the advantages of using triangular wave signals for motor control in this system?
Original Abstract Submitted
A motor controller includes a plurality of inverters that supply power to a corresponding motor of a plurality of motors through pulse width modulation control, a direct current power supply that supplies power to the plurality of inverters, and a capacitor connected parallel to the direct current power supply. Each of the plurality of inverters is categorized into one of a plurality of groups based on a switching frequency. All inverters in each of the groups have corresponding carrier signals being triangular wave signals determined based on a reference frequency assigned to the group. At least one of the triangular wave signals has at least one of a frequency or a phase different from a frequency or a phase of another triangular wave signal of the triangular wave signals.
