EV Charging Device Dynamic Power Management
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Solution Overview
Problem
Existing electric vehicle charging systems often exceed the rated current limit of electrical distribution components, leading to potential damage and power interruptions, as they lack efficient management of concurrent charging operations.
Innovation Solution
A power system with a charging device and a remote device that communicate to authorize and manage power delivery based on the loading of the power distribution device, ensuring that the charging request does not exceed the available power capacity, thereby preventing overload and damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple charging devices and loads operate concurrently on a common electrical distribution component, then the power delivery capacity is improved, but the rated current limit of the distribution component is exceeded causing damage or power interruptions
Solution Approach 1:
The system dynamically adjusts the charging current based on real-time monitoring of the distribution component's loading status. The charging device transitions from static operation to dynamic control by continuously adapting the power delivery to match available capacity, allowing multiple devices to operate safely without exceeding thermal or current limits.
Solution Approach 2:
The system implements a feedback mechanism where the charging device monitors the loading of the common electrical distribution component and adjusts its operation accordingly. This closed-loop control enables the system to respond to changing conditions in real-time, preventing overload while maximizing power delivery to multiple charging devices and loads.
2Ease of operation
If charging devices lack centralized management, then the ease of operation is improved, but the power distribution efficiency deteriorates leading to overload and wasted capacity
Solution Approach 1:
The charging device autonomously determines whether to initiate charging by independently assessing the loading status of the common electrical distribution component. This self-service capability eliminates the need for centralized authorization while maintaining efficient power distribution, as each charging device makes intelligent decisions based on real-time system conditions.
Solution Approach 2:
The charging device uses real-time feedback from the distribution component's loading status to make autonomous charging decisions. This feedback-driven approach enables distributed intelligence where individual devices can operate independently while collectively optimizing the overall power distribution efficiency of the system.
Data Source
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AI summary
A charging device (104) includes a power delivery system (214) configured to supply power to at least one load (102) coupled to the charging device. The charging device also includes a processor (202) coupled to the power delivery system, and the processor is programmed to transmit a charging request to a remote device. The charging request includes an amount of power requested to be supplied to the at least one load. The processor is programmed to receive data related to a loading of a power distribution device (302), wherein the power distribution device is configured to supply power to the charging device. The processor is further programmed to selectively activate the power delivery system to supply power to the at least one load based on the data received.