Charging Pile Cluster Power Sharing for Real-Time Load Balancing
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Solution Overview
Problem
Existing power sharing methods for charging stations fail to dynamically adjust power distribution based on real-time changes in battery state of charge (SOC) and demand, leading to reduced equipment utilization and inefficiencies during peak electricity consumption.
Innovation Solution
A method and system for controlling power sharing among charging piles that calculates a remaining power and weight for each pile based on performance state, dynamically adjusting power output limits to match real-time demand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power is distributed in proportion based on rated powers of each charging pile, then the power distribution is simple and stable, but it ignores real-time demand changes and performance state, leading to reduced equipment utilization during peak periods
Solution Approach 1:
The patent implements dynamic power distribution by continuously adjusting the power allocation of each charging pile based on real-time available load power and charging pile performance states. The system calculates dynamic distribution ratios that adapt to changing conditions, transforming the static rated-power-based allocation into a dynamic response mechanism that maximizes equipment utilization during peak periods.
Solution Approach 2:
The system establishes a feedback loop where the control unit continuously monitors the actual power consumption of each charging pile and the available load power, then adjusts the power distribution accordingly. This feedback mechanism enables the system to respond to real-time changes in charging demand and grid capacity, optimizing power allocation without requiring complex manual intervention.
2Adaptability or versatility
If fixed rated power is distributed to charging piles, then the control method is simple, but it cannot adapt to real-time changes in available load power, causing decrease in number of available charging piles
Solution Approach 1:
The patent transforms the static fixed rated power distribution into a dynamic system where the power allocation for each charging pile is continuously adjusted based on the available load power and charging pile performance states. This dynamic approach enables the system to adapt to real-time changes in grid capacity and charging demand, ensuring optimal utilization of available resources.
Solution Approach 2:
The system changes the key parameter of power distribution from fixed rated power to dynamic power allocation based on available load power. By calculating distribution ratios that reflect real-time conditions, the system adapts its power distribution strategy to match changing grid capacity and charging pile performance, increasing adaptability without proportionally increasing control complexity.
3Productivity
If power sharing is adjusted in real-time based on available load power and charging pile performance, then equipment utilization is improved, but the calculation and control complexity increases
Solution Approach 1:
The patent implements a feedback-based control mechanism where the control unit continuously monitors the available load power and actual power consumption of each charging pile, then adjusts the power distribution in real-time. This feedback loop automates the complex calculations and adjustments, reducing the perceived control difficulty while maintaining high equipment utilization through continuous optimization.
Solution Approach 2:
The system enables the charging pile cluster to self-regulate power distribution by automatically calculating and adjusting power allocation based on monitored performance data and available load power. This self-service mechanism handles the complex real-time calculations and adjustments internally, reducing external control complexity while maintaining optimal equipment utilization.
Data Source
AI summary
The disclosure provides a method, system and device for controlling power sharing of a cluster of charging piles, comprising calculating a remaining power of the cluster at a current time according a total power upper limit of the cluster at the current time, a total number of charging piles of the cluster at the current time and an actual output power of each charging pile; calculating a weight of each charging pile for distributing the remaining power according to performance state of each charging pile; and obtaining a power output upper limit distributed to each charging pile at the next time according to the remaining power at the current time, the weight and the actual output power of each charging pile. The disclosure automatically adjusts the power output upper limit distributed to each charging pile in real time, thereby improving equipment utilization and load utilization of the charging station.