EV Charging-Discharging Control for Grid Power Allocation

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Solution Overview

Problem

The challenge is to achieve a reasonable allocation of electric power between electric vehicles and the power grid, given the fluctuating electricity consumption and the need to optimize energy storage and release.

Innovation Solution

A method for controlling electric power that involves acquiring data indicating electricity consumption information of the power grid and using this data to control electric vehicles to either acquire or transmit electric energy through a charging and discharging system, thereby facilitating flexible energy transmission and allocation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If electric vehicles are connected to the power grid for charging, then electric vehicles can acquire electric energy, but the power grid experiences fluctuating electricity consumption and difficulty in reasonable allocation of electric power

Engineering Contradiction:
Improveelectric energy acquisition by electric vehiclesVSAvoidelectric power allocation complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The control unit receives electricity consumption information from the power grid and uses this feedback to automatically adjust charging and discharging operations. The system monitors real-time power grid status and modifies energy flow accordingly, enabling reasonable allocation of electric power while managing fluctuating consumption patterns.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The electric vehicle's control unit autonomously decides when to charge or discharge based on received power grid information, without requiring complex external control systems. The vehicle itself manages its energy operations by interpreting power consumption data and making autonomous charging/discharging decisions.

Inventive Principle:
Principle #25Self-service

2Loss of energy

If electric vehicles transmit electric energy to the power grid, then the power grid can utilize stored energy, but the electric vehicle must maintain sufficient electric quantity for operation

Engineering Contradiction:
Improveenergy utilization efficiencyVSAvoidelectric vehicle operation reliability
Core Design Contradiction:
Loss of energyVSReliability

Solution Approach 1:

The system dynamically adjusts the discharging threshold based on real-time power grid needs and vehicle state of charge. The control unit continuously monitors electric quantity levels and modifies discharge parameters to ensure the vehicle maintains sufficient energy for operation while maximizing energy transmission to the grid when conditions are favorable.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The control unit receives continuous feedback on the vehicle's electric quantity levels and adjusts discharging operations accordingly. When the electric quantity approaches critical levels, the system automatically reduces or stops discharge to maintain operational reliability, while still capturing energy transmission opportunities when the grid needs power.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20250065752A1Method for controlling electric power and charging and discharging system
Publication Date: 2025.02.27 CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
  • US20250065752A1 patent drawing
  • US20250065752A1 patent drawing
  • US20250065752A1 patent drawing

AI summary

Provided are a method for controlling electric power and a charging and discharging system. The method includes: acquiring first data, the first data being configured to indicate electricity consumption information of a power grid; and controlling the electricity consumption device to acquire electric energy from the power grid or to transmit the electric energy to the power grid through the charging and discharging device according to the first data in a case where an electricity consumption device is connected to a charging and discharging device. The technical solution of the present application is beneficial to achieving a reasonable allocation of electric power.