17959635. OVER-TEMPERATURE MANAGEMENT OF DC LINK CAPACITOR IN ELECTRIC VEHICLE PROPULSION DRIVE CONVERTER simplified abstract (Ford Global Technologies, LLC)
Contents
- 1 OVER-TEMPERATURE MANAGEMENT OF DC LINK CAPACITOR IN ELECTRIC VEHICLE PROPULSION DRIVE CONVERTER
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 OVER-TEMPERATURE MANAGEMENT OF DC LINK CAPACITOR IN ELECTRIC VEHICLE PROPULSION DRIVE CONVERTER - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Potential Applications
- 1.6 Problems Solved
- 1.7 Benefits
- 1.8 Potential Commercial Applications
- 1.9 Possible Prior Art
- 1.10 Unanswered Questions
- 1.11 Original Abstract Submitted
OVER-TEMPERATURE MANAGEMENT OF DC LINK CAPACITOR IN ELECTRIC VEHICLE PROPULSION DRIVE CONVERTER
Organization Name
Inventor(s)
Jogendra Singh Thongam of Windsor (CA)
Serdar Hakki Yonak of Ann Arbor MI (US)
Joseph Sherman Kimmel of Carleton MI (US)
Papiya Bagchi of Northville MI (US)
OVER-TEMPERATURE MANAGEMENT OF DC LINK CAPACITOR IN ELECTRIC VEHICLE PROPULSION DRIVE CONVERTER - A simplified explanation of the abstract
This abstract first appeared for US patent application 17959635 titled 'OVER-TEMPERATURE MANAGEMENT OF DC LINK CAPACITOR IN ELECTRIC VEHICLE PROPULSION DRIVE CONVERTER
Simplified Explanation
The patent application describes a system where a controller reduces power output of an inverter in response to various sensed parameters to maintain the temperature of a DC-link capacitor below a certain threshold.
- The controller reduces power output of an inverter based on:
- Sensed temperature of a power switch of the inverter
- Sensed current of a power electronics module
- Sensed DC-link voltage
- Thermal impedance parameters of a DC-link capacitor indicating estimated temperature
Potential Applications
This technology could be applied in electric vehicles, renewable energy systems, industrial machinery, and power electronics equipment.
Problems Solved
1. Preventing overheating of DC-link capacitors in power systems. 2. Ensuring the longevity and reliability of power electronics components.
Benefits
1. Improved efficiency and performance of electric drive systems. 2. Enhanced safety by preventing overheating and potential damage. 3. Cost savings by extending the lifespan of components.
Potential Commercial Applications
Optimizing energy consumption in electric vehicles Enhancing the reliability of renewable energy systems Improving the efficiency of industrial machinery
Possible Prior Art
One possible prior art could be a similar system used in industrial power electronics systems to regulate temperature and prevent overheating of components.
Unanswered Questions
How does the controller precisely determine the threshold temperature for the DC-link capacitor?
The exact method or algorithm used by the controller to set and adjust the threshold temperature is not specified in the abstract.
What specific types of power electronics modules are compatible with this system?
The abstract does not mention the compatibility of different types or brands of power electronics modules with the controller's sensing and power reduction capabilities.
Original Abstract Submitted
After start of an electric drive system, a controller reduces power output of an inverter responsive to sensed temperature of a power switch of the inverter, sensed current of a power electronics module, sensed DC-link voltage, and thermal impedance parameters of a DC-link capacitor being indicative of an estimated temperature of the DC-link capacitor that is greater than a threshold to maintain DC-link capacitor temperature lower than the threshold.
