17952832. POWER TRANSFORMING APPARATUS AND AIR CONDITIONER INCLUDING THE SAME simplified abstract (LG Electronics Inc.)
POWER TRANSFORMING APPARATUS AND AIR CONDITIONER INCLUDING THE SAME
Organization Name
Inventor(s)
POWER TRANSFORMING APPARATUS AND AIR CONDITIONER INCLUDING THE SAME - A simplified explanation of the abstract
This abstract first appeared for US patent application 17952832 titled 'POWER TRANSFORMING APPARATUS AND AIR CONDITIONER INCLUDING THE SAME
Simplified Explanation
The present disclosure describes a power transforming apparatus that reduces stress on a converter switch during a power factor correction (PFC) operation. The apparatus determines the number of converters needed for the PFC operation based on the input power and motor speed. It also randomly selects target converter channels at the beginning of the PFC operation to avoid adding stress to any one converter's switch device. The apparatus further disperses stress to all switches by individually controlling phases and performing switching operations in a preset cycle, such as whenever a zero-crossing is detected.
- The power transforming apparatus reduces stress on a converter switch during a PFC operation.
- The number of converters for the PFC operation is determined based on input power and motor speed.
- Target converter channels are randomly selected at the start of the PFC operation to avoid adding stress to any one converter's switch device.
- Stress is dispersed to all switches by individually controlling phases and performing switching operations in a preset cycle.
Potential Applications
- Power factor correction in air conditioners and other appliances.
- Power transforming in various industrial applications.
- Energy-efficient motor control systems.
Problems Solved
- Reduces stress on converter switches during PFC operation.
- Prevents excessive stress on any one converter's switch device.
- Improves overall efficiency and reliability of power transforming apparatus.
Benefits
- Increased lifespan of converter switches.
- Improved energy efficiency during PFC operation.
- Enhanced reliability and performance of power transforming apparatus.
Original Abstract Submitted
The present disclosure discloses a power transforming apparatus capable of reducing a stress of a converter switch during a PFC operation, an operation method thereof, and an air conditioner including the same. To this end, the power transforming apparatus according to the present disclosure may determine the number of converters for performing a PFC operation based on a magnitude of input power and a speed of the motor. Furthermore, target converter channels are arbitrarily selected using a random function at an initial stage of a PFC operation so as not to add a stress to a switch device of any one converter. In addition, in order to disperse a stress to all switches, phases are individually controlled to perform switching operations while changing converters that match the number of converters for performing a PFC operation in a preset cycle, for example, whenever a zero-crossing is detected.
