DC Power Supply Device for Bus Line Control During Anomalies
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Solution Overview
Problem
Existing power source devices with rechargeable batteries often waste power during anomalies in supply, as some stop supplying earlier than needed while others hold excess, and they typically assume AC power supply during failures, which is inefficient.
Innovation Solution
A power supply system using interconnected power supplying devices with direct-current bus lines and controllers that manage power distribution and storage, allowing efficient DC power supply through a direct-current bus line during external power anomalies, enabling devices to share power when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power is supplied by individual power source devices with rechargeable batteries during power supply anomalies, then power can be continued to be supplied to connected apparatuses, but some power source devices may stop supplying power earlier than expected while others hold greater power than necessary, causing waste
Solution Approach 1:
The patent combines multiple power source devices into a unified power supply system where devices communicate with each other and coordinate their power supply operations. The management device aggregates power information from multiple sources and distributes power in a coordinated manner, merging individual devices into a collective system that operates efficiently together rather than independently
Solution Approach 2:
The patent implements feedback mechanisms where power source devices report their power status to a management device, which then adjusts power distribution based on real-time conditions. The system continuously monitors power levels, consumption rates, and device status, using this feedback information to dynamically optimize power allocation and prevent both premature shutdown and excessive power retention
2Productivity
If AC power is supplied during power failure to consumers, then power can be supplied to apparatuses, but it is inefficient compared to DC power supply from rechargeable batteries
Solution Approach 1:
The patent extracts the AC-to-DC conversion step from the power supply chain by having power source devices directly supply DC power to apparatuses during power failures. Instead of converting AC to DC at the consumer end, the system removes this conversion step entirely by using DC-capable battery devices as power sources, thereby eliminating the associated energy losses and improving overall efficiency
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 system ensures efficient power distribution by switching to DC power supply and allowing devices to share power, reducing waste and ensuring continuous supply during external power disruptions.
Implementation Method 1
Multiple input voltages are received from multiple power sources. A voltage control signal indicating a desired output voltage is issued to multiple DC-DC converter modules electrically coupled to the multiple power sources.
Data Source
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AI summary
[Object] To propose a power supplying device capable of efficiently supplying power through a direct-current power line when an anomaly occurs in external power supply. [Solution] Provided is a power supplying device including: a communication unit (152, 153) configured to receive a request from a first power supplying device for power supply performed through a direct-current bus line (600) through which DC power flows and to transmit a response in association with the request; and a power control unit (154) configured to acquire a right to control the direct-current bus line, to notify to the other power supplying devices connected to the direct-current bus line an acquisition of the control right, to set a voltage of the direct-current bus line to the rating, and to start a power supply to the first power supplying device, when performing a power supply to the first power supplying device and no other power supplying device connected to the direct-current bus has the control right.