Control Apparatus for Power Conversion Efficiency Optimization
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Solution Overview
Problem
Power conversion efficiency in power supply systems decreases due to the consumption of electrical power by main electrical power conversion devices, leading to inefficiencies when supplying power to equipment in standby states.
Innovation Solution
A control apparatus that predicts equipment operation states and switches between main and auxiliary power conversion devices to minimize power loss, using an operation prediction section to determine when to activate the main or auxiliary electrical power conversion devices based on the equipment's state, ensuring efficient power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the main electrical power conversion device is used to supply power to equipment in standby state, then the equipment receives stable power supply, but the power conversion efficiency decreases due to electrical power consumption by the main device
Solution Approach 1:
The power conversion function is segmented into two separate devices: a main electrical power conversion device for high-power operation and an auxiliary electrical power conversion device for low-power standby operation. This segmentation allows each device to operate in its optimal efficiency range, with the auxiliary device handling dark current supply while the main device remains inactive, thereby resolving the contradiction between maintaining power supply stability and improving power conversion efficiency.
2Reliability
If the main electrical power conversion device is operated continuously to ensure power supply, then equipment operation is guaranteed, but energy loss increases due to unnecessary operation during standby states
Solution Approach 1:
The system dynamically switches between the main electrical power conversion device and the auxiliary electrical power conversion device based on the operational state of the equipment. During standby states, the auxiliary device is activated to supply minimal power, while during active operation, the main device takes over. This dynamic adaptation optimizes energy usage by ensuring the main device operates only when necessary, thereby reducing overall electrical power consumption while maintaining equipment operation guarantees.
3Loss of energy
If the auxiliary electrical power conversion device is used for dark current supply, then power conversion efficiency increases, but the system complexity increases due to additional device configuration
Solution Approach 1:
The auxiliary electrical power conversion device is designed with multi-functionality, serving both as a dark current supply source during standby states and as a potential primary power source during main device failures or maintenance. The control apparatus also performs multiple functions including operation prediction, power supply mode determination, and device switching control. This universal design justifies the added complexity by providing enhanced efficiency and operational flexibility.
4Loss of energy
If operation prediction is implemented to switch between power conversion devices, then energy efficiency improves, but the control system complexity increases
Solution Approach 1:
The control apparatus implements operation prediction functionality that anticipates equipment state changes before they occur. By predicting when the equipment will transition from standby to active operation, the system can proactively switch between the auxiliary and main electrical power conversion devices, avoiding unnecessary switching delays and optimizing energy efficiency. This preliminary action approach justifies the enhanced control complexity by preventing energy waste and improving overall system responsiveness.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces power loss and maintains high power conversion efficiency by selectively using the main or auxiliary power conversion devices based on the equipment's operational state, preventing electrical power shortages and minimizing the physical size of the main electrical storage device.
Implementation Method 1
Power conversion efficiency of the auxiliary electrical power conversion device is higher than power conversion efficiency of the main electrical power conversion device within a load current range corresponding to a dark current flowing through the equipment
Data Source
AI summary
A control apparatus includes: an operation prediction section that predicts that equipment will shift from an operation stopped state to an operating state; and a supply control section that, if it is not predicted that the equipment will shift from the operation stopped state to the operating state, sets a main-electrical power conversion device to the operation stopped state and operates an auxiliary-electrical power conversion device to supply electrical power from the auxiliary-electrical power conversion device to the equipment, and that, if it is predicted that the equipment will shift from the operation stopped state to the operating state, operates the main-electrical power conversion device to supply power from the main-electrical power conversion device to the equipment. Power conversion efficiency of the auxiliary-electrical power conversion device is higher than that of the main-electrical power conversion device within a load current range corresponding to a dark current flowing through the equipment.