DC Power Distribution Voltage Control
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Solution Overview
Problem
Conventional DC power supply and distribution systems lack the ability to individually control DC power voltages, leading to inefficiencies in power distribution when converting AC power to DC powers with multiple voltage levels.
Innovation Solution
A DC power supply and distribution system that includes an AC-DC converter, a voltage controller, and load condition detectors to determine and control the allowable voltage ranges for DC powers, ensuring efficient distribution by adjusting voltages based on load conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional DC power supply and distribution systems convert AC power to DC powers with multiple voltage levels without individual voltage control, then the system structure is simple, but the power distribution efficiency deteriorates
Solution Approach 1:
The patent implements dynamic voltage control by enabling the voltage controller to adjust DC power voltages in real-time based on load conditions. The system transitions from static fixed voltage output to dynamic voltage adjustment, allowing optimal voltage levels to be maintained for different load requirements, thereby improving power distribution efficiency without excessive complexity
Solution Approach 2:
The patent changes the voltage parameter of DC power based on load conditions. The voltage controller modifies output voltage levels dynamically according to detected load states, enabling the system to adapt voltage parameters to match actual power distribution needs, thus resolving the contradiction between efficiency and complexity
2Loss of energy
If AC power is converted to DC powers with multiple fixed voltage levels, then the conversion process is simple, but power losses increase due to inability to optimize voltages for different loads
Solution Approach 1:
The patent implements a feedback mechanism where load conditions are detected and used to adjust DC power voltages. The voltage controller receives information about load states and automatically adjusts output voltages to minimize power losses, creating a closed-loop control system that reduces energy waste while maintaining appropriate automation levels
Solution Approach 2:
The system performs self-adjustment of voltage levels based on detected load conditions. The voltage controller autonomously optimizes DC power voltages without requiring external intervention, enabling the system to minimize power conversion losses through automatic voltage optimization matched to actual load requirements
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 solution improves power distribution efficiency by allowing precise control of DC power voltages, reducing losses, and ensuring stable power supply to loads, while minimizing the need for additional power converters, thus enhancing overall system efficiency and cost-effectiveness.
Implementation Method 1
an AC-DC converter configured to convert an AC power input from an AC power line to DC powers having a plurality of different voltages
Data Source
AI summary
A DC supply and distribution system includes an AC-DC converter for converting an AC power input from an AC power line to DC powers having a plurality of different voltages and outputting the converted DC powers; and a voltage controller for controlling the different voltages of the DC powers to be output from the AC-DC converter. The output DC powers are distributed to the plurality of loads through a plurality of respective DC lines connected from the output terminals of the AC-DC converter.