Vehicle DR Priority Control for Lower Power Transmission Loss
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Solution Overview
Problem
In a virtual power plant, there is no clear method for selecting the most effective vehicle to participate in demand response (DR) from a fleet of vehicles capable of contact and non-contact power transmission, leading to inefficiencies in power demand-supply balance and increased power loss.
Innovation Solution
A server with a communication and processing device prioritizes vehicles for DR participation based on power transmission modes, setting higher priority for contact power transmission over non-contact transmission, and further prioritizing stationary over traveling non-contact transmission to minimize power loss and optimize power use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If non-contact power transmission is used for DR participation, then vehicle mobility is maintained, but power loss increases
Solution Approach 1:
The system dynamically adjusts the priority degree of vehicles based on their power transmission mode and operational state. Vehicles capable of contact power transmission are assigned higher priority when stationary, while moving vehicles using non-contact transmission receive lower priority, creating a dynamic optimization mechanism that balances mobility needs with power efficiency
Solution Approach 2:
The invention changes the parameter of priority degree assignment based on the power transmission mode and vehicle state. By varying the priority degree parameter according to whether vehicles use contact or non-contact transmission and whether they are stationary or moving, the system optimizes power loss while maintaining necessary vehicle mobility
2Loss of energy
If contact power transmission is prioritized, then power loss is reduced, but vehicle operational flexibility is limited
Solution Approach 1:
The priority degree assignment is dynamic rather than static. Vehicles can transition between different priority levels based on their ability to switch power transmission modes and their operational state, maintaining flexibility while optimizing for lower power loss when conditions permit
Solution Approach 2:
The vehicle fleet is segmented into different priority groups based on their power transmission capabilities and current state. This segmentation allows the system to manage vehicles with different operational requirements separately, reducing power loss for suitable vehicles while maintaining flexibility for those that need mobility
3Quantity of substance
If DR signals are transmitted to all vehicles equally, then participation rate is maximized, but power efficiency decreases
Solution Approach 1:
Instead of uniform treatment, the system applies local quality differentiation by assigning different priority degrees to individual vehicles based on their specific power transmission mode and operational state. This localized optimization ensures that vehicles with better power efficiency characteristics are prioritized for DR participation
Solution Approach 2:
The system uses feedback from vehicle state information and power transmission mode to continuously optimize DR signal transmission priorities. The server adjusts priority degrees based on real-time or near-real-time vehicle status, creating a feedback loop that improves power efficiency while maintaining adequate participation rates
Data Source
AI summary
A server manages plural vehicles each configured to be able to participate in a DR. A first vehicle is able to transmit power through a power cable. A second vehicle is able to transmit power in a non-contact manner while being stationary. A third vehicle is able to transmit power in a non-contact manner while traveling. The server includes a communication device and a processing device. The communication device is able to transmit a DR signal to each of the vehicles. The processing device selects a target vehicle, to which the DR signal is to be transmitted, from the vehicles in accordance with the priority degree for participation in the DR. The processing device sets the priority degree of the first vehicle to be higher than that of the second vehicle, and sets the priority degree of the second vehicle to be higher than that of the third vehicle.