BESS Power Distribution Limits for Temperature Consistency
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Solution Overview
Problem
Power plants face challenges in maintaining optimal temperature conditions for battery energy storage system (BESS) units within temperature-controlled rooms, as the temperature variations affect the performance and efficiency of the BESS units, making it difficult to determine an appropriate temperature setting for the rooms.
Innovation Solution
A method and system for controlling power distribution in energy storage systems, where a controller determines energy storage boundaries, thresholds, and limits for each BESS unit in a temperature-controlled room, ensuring that power commands are satisfied while maintaining similar temperature conditions across all units, thereby simplifying the cooling system by using a single cooling source for units sharing a zone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If power commands are distributed to multiple BESS units in a temperature controlled room, then the power plant can satisfy power requests, but the temperature range among BESS units becomes too wide making it difficult to determine an appropriate temperature for the room
Solution Approach 1:
The system dynamically changes operational parameters by determining energy storage boundaries, thresholds, and limits for each BESS unit based on their individual state of charge and capacity. This allows the system to adjust power distribution parameters to maintain temperature consistency across all units while satisfying power requests.
Solution Approach 2:
The system performs preliminary actions by pre-determining energy storage boundaries, thresholds, and limits for each BESS unit before power distribution. This preliminary configuration ensures that when power commands are distributed, the temperature range among units remains controlled and manageable.
2Temperature
If the temperature controlled room maintains a narrow temperature range for all BESS units, then temperature management becomes easier, but the system requires multiple cooling sources or complex cooling systems
Solution Approach 1:
The system changes the approach from physical cooling system complexity to operational parameter control. By dynamically adjusting energy storage boundaries, thresholds, and limits based on each unit's state of charge and capacity, the system achieves temperature consistency through intelligent power distribution rather than complex cooling infrastructure.
Solution Approach 2:
The system replaces the mechanical cooling system complexity with an intelligent control system that uses computational algorithms to determine energy storage boundaries and power distribution limits. This substitutes physical cooling complexity with digital control, achieving temperature management through software-based parameter optimization.
3Productivity
If the system distributes power commands proportionally based on capacity among BESS units, then power distribution is optimized, but temperature variations among units increase
Solution Approach 1:
The system modifies the power distribution parameters by introducing energy storage boundaries, thresholds, and limits that are dynamically calculated based on each unit's state of charge and capacity. This allows the system to maintain both high power distribution efficiency and temperature consistency by adjusting operational parameters rather than using simple proportional distribution.
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring the state of charge and capacity of each BESS unit, then using this information to determine appropriate energy storage boundaries and power distribution limits. This feedback loop ensures that power distribution maintains both efficiency and temperature consistency across all units.
Data Source
AI summary
Systems and methods for controlling power distribution are provided. The method includes receiving a power command, wherein the power command requests a discharge from one or more BESS units, and wherein the one or more BESS units are housed in one or more temperature controlled rooms. For each of the one or more temperature controlled rooms, a lowest energy remaining of the one or more BESS units in the temperature controlled room is determined; a low threshold is determined based on the determined lowest energy remaining and a floor; a limit is determined based on the determined low threshold; and the limit is assigned to each of the one or more BESS units housed in the temperature controlled room. The method includes causing the power command to be at least partially satisfied by the one or more BESS units based on the assigned limits.