One-Cord Vehicle Power Plug Synchronization for Grid Recovery
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Solution Overview
Problem
Existing energy storage systems for home use suffer from damage during power recovery after commercial alternating current power failure due to synchronization issues between grid power and battery-generated power, and require complex installation involving a distribution box.
Innovation Solution
A vehicle-mounted energy storage system using a one-cord power plug that synchronizes power through an alternating current/direct current conversion unit, voltage booster, direct current/alternating current conversion unit, power control unit, inductor, switching unit, current determination unit, and switching control unit, eliminating the need for a distribution box and enabling easy installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the energy storage system uses a one-cord power plug for simple installation, then the ease of installation is improved, but the risk of power synchronization damage during power recovery worsens
Solution Approach 1:
The system performs preliminary detection of power synchronization status before connecting to the grid. The controller detects whether the battery alternating current power is synchronized with the commercial alternating current power before allowing power flow, preventing damage during power recovery while maintaining simple one-cord installation
Solution Approach 2:
The system continuously monitors the synchronization status between battery-generated alternating current power and grid power through feedback mechanisms. The controller adjusts power flow based on real-time detection of synchronization conditions, ensuring safe operation without complex installation requirements
2Stability of the object's composition
If the energy storage system allows simultaneous supply of grid power and battery power to the load, then the power supply stability is improved, but the complexity of power management worsens
Solution Approach 1:
The system automatically manages power distribution between grid power and battery power without requiring complex external control. The controller autonomously detects power availability, determines synchronization status, and manages power flow to maintain stable supply while simplifying the overall system architecture
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
Prevents damage to the energy storage system during power recovery by stabilizing the supply of alternating current power from both grid and battery sources, and allows for seamless integration with home appliances without the need for a distribution box installation.
Implementation Method 1
an alternating current/direct current conversion unit configured to receive commercial alternating current power, which is grid power, through an input/output terminal to convert the commercial alternating current power into direct current power
Implementation Method 2
a voltage boosting unit configured to boost the direct current power output from the alternating current/direct current conversion unit to output a boosted direct current voltage
Implementation Method 3
a direct current/alternating current conversion unit configured to convert the boosted direct current voltage into alternating current power to supply a battery alternating current power to a load through the input/output terminal
Implementation Method 4
an inductor having one terminal connected to a supply terminal to which the commercial alternating current power is supplied; a switching unit having one terminal connected to the other terminal of the inductor
Data Source
AI summary
A vehicle comprises a battery and an energy storage system, which is mounted on the vehicle to charge the battery with power, provides power for charging a load outside of the vehicle, and synchronizes power discharged in order to charge the load with commercial alternating current power supplied through a receptacle outside of the vehicle if a one-cord power plug is connected to the receptacle in order to charge the load, wherein the energy storage system comprises: an alternating current/direct current conversion unit; a battery; a voltage boosting unit; a direct current/alternating current conversion unit; a power control unit; an inductor (L) connected to a supply terminal (ACP) through which commercial alternating current power (Vac) is supplied; a switching unit (SW) having one terminal connected to the inductor (L) and having another terminal connected to an input and output terminal (IOP); a current determination unit.