High-Frequency Power Apparatus Efficiency Control
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Solution Overview
Problem
Existing high-frequency power apparatuses require manual establishment of the relationship between output power set values and DC power supply levels, leading to increased operational complexity and energy consumption, while aiming to maintain high conversion efficiency and prevent waveform distortion.
Innovation Solution
A high-frequency power apparatus with a controller system that automatically adjusts the output level of the oscillator and DC power supply based on set efficiency values, ensuring constant conversion efficiency and minimizing waveform distortion through harmonic removal by a filter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual establishment of DC power supply levels is used, then waveform distortion is prevented, but operational complexity increases
Solution Approach 1:
The system automatically determines the optimal DC power supply level by measuring the actual conversion efficiency and self-adjusting the DC voltage to maximize efficiency, eliminating the need for manual establishment of DC power levels while preventing waveform distortion through automated control
2Loss of energy
If DC power supply level is optimized for maximum amplitude, then conversion efficiency improves, but waveform distortion occurs
Solution Approach 1:
The system continuously measures the actual conversion efficiency by comparing DC power input with high-frequency power output, uses this feedback to determine the optimal DC power supply level that maximizes efficiency while preventing waveform distortion through automated adjustment
Solution Approach 2:
The system dynamically changes the DC power supply voltage parameter based on measured conversion efficiency, adjusting it to optimal values that maximize energy conversion while maintaining waveform integrity through automated control
3Use of energy by moving object
If automatic efficiency control is implemented, then energy consumption is reduced, but device complexity increases
Solution Approach 1:
The controller system performs multiple functions including measuring DC power, measuring high-frequency power, calculating conversion efficiency, determining optimal DC levels, and controlling the power supply, consolidating these functions into a single multi-functional controller that reduces overall system complexity
Data Source
AI summary
A high-frequency power apparatus including: an oscillator, outputting an oscillating signal, an output level of the oscillating signal being variable; an amplifier, amplifying the oscillating signal output from the oscillator and outputting high-frequency power; a DC power supply, supplying DC power to the amplifier, an output level of the DC power being variable; a high-frequency power measuring unit, measuring a power value of the high-frequency power at an output terminal of the high-frequency power apparatus and outputting the measured power value as a high-frequency power measured value; a DC power measuring unit, measuring a power value of the DC power supplied to the amplifier and outputting the measured DC power value as a DC power measured value; a first controller, controlling the output level of the oscillating signal to be output from the oscillator such that the high-frequency power measured value is substantially equal to an output power set value; and a second controller, controlling the output level of the DC power to be supplied from the DC power supply to the amplifier such that a calculated value obtained by dividing the high-frequency power measured value by the DC power measured value is substantially equal to a predetermined efficiency set value.