System and method for providing usable discharge energy information based on consumption power
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing energy storage systems (ESS) do not provide usable discharge energy (UDE) information considering the consumption power of air-conditioning systems and electrical facilities, limiting the efficiency assessment of battery discharge capabilities.
Innovation Solution
A system and method that calculates UDE by integrating state-of-charge (SOC) of a battery, discharge efficiency, and facility efficiency, considering chiller and HVAC information, using units like SOC calculation, discharge efficiency calculation, facility efficiency calculation, and UDE calculation, along with a charging mode determination unit to determine battery charging states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If SOC information is provided based only on battery charging level, then the calculation is simple, but the information does not reflect actual usable discharge energy considering facility consumption
Solution Approach 1:
The system segments the energy calculation into distinct components: battery SOC calculation, discharge efficiency calculation (C rate), and facility efficiency calculation (FE). Each component is calculated separately by dedicated calculation units, then integrated to provide comprehensive UDE information that reflects both battery state and facility consumption.
Solution Approach 2:
The patent merges previously separate calculations (SOC, discharge efficiency, facility efficiency) into a unified UDE calculation framework. The UDE calculation unit integrates all three components along with consumption power information to provide a comprehensive measure of actual usable discharge energy.
2Productivity
If consumption power information is not provided, then the system operation is simpler, but the energy usage efficiency assessment is incomplete
Solution Approach 1:
The system performs preliminary calculations of consumption power for facilities (air-conditioning, heating, lighting) before determining the final UDE. This allows the energy management system to assess energy usage efficiency in advance and make informed decisions about battery discharge strategies.
Solution Approach 2:
The system implements feedback by continuously monitoring consumption power of facilities and battery discharge characteristics, then using this information to adjust and refine UDE calculations. This feedback loop enables dynamic optimization of energy usage efficiency based on actual system performance.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A system and method for providing UDE information based on consumption power are provided. The system for providing UDE information based on consumption power includes a state-of-charge (SOC) calculation unit configured to calculate an SOC (Soc) of a battery, a discharge efficiency calculation unit configured to calculate discharge efficiency (Crate) information by receiving battery discharge current information, a facility efficiency calculation unit configured to calculate facility efficiency information (FE) by receiving chiller (C1) information and heating, ventilation & conditioning (HVAC) (H) information, and a UDE calculation unit configured to calculate UDE based on the facility efficiency information (FE).