Simulation Signal Synthesis for Battery Testing
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Solution Overview
Problem
Existing energy storage systems face challenges in generating charge/discharge command values that accurately reflect the operational environment, leading to inadequate performance testing and safety measures, as current simulation signals fail to replicate the complex environmental factors of actual operational conditions.
Innovation Solution
A simulation-signal generation device that acquires and processes charge/discharge conditions, signal characteristic amounts, and generates simulation signals by synthesizing characteristic signals to create command signals that mimic the expected operational environment, allowing for precise testing and improved safety measures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If simple simulation signals (constant currents, sine waves, rectangular waves) are used for testing, then the test process is simple and easy to implement, but the simulation accuracy and reliability of test results deteriorate because they fail to reflect the complex actual operational environment
Solution Approach 1:
The patent creates a virtual copy of the actual operational environment by generating simulation signals that replicate real charge/discharge command values. Instead of using simple theoretical waveforms, the system copies the complex characteristics of actual grid operations including multiple frequency components and varying patterns, thereby achieving high test reliability while maintaining procedural simplicity.
Solution Approach 2:
The patent transforms the simulation signal parameters by superimposing multiple sine waves with different frequencies, amplitudes, and phases to match actual operational conditions. This parameter transformation allows the simulation signal to accurately reflect the complexity of real-world charge/discharge commands while still being generated through a systematic process.
2Reliability
If complex simulation signals reflecting actual operational environment are generated, then the reliability and accuracy of test results improve, but the device complexity and difficulty of signal generation increase
Solution Approach 1:
The patent segments the complex simulation signal generation process into manageable components: acquiring actual charge/discharge command values, analyzing their frequency characteristics, generating multiple sine wave components with specific frequencies and amplitudes, and superimposing them. This segmentation reduces the overall complexity by breaking down the complex task into systematic steps.
Solution Approach 2:
The patent introduces an intermediary processing system that acts as a mediator between simple signal generation and complex operational simulation. This intermediary layer analyzes actual operational data and transforms it into synthesized simulation signals, thereby simplifying the generation process while maintaining high fidelity to actual conditions.
3Ease of operation
If existing simulation signals are used without reflecting actual operational environment, then the ease of operation is maintained, but the measurement precision and accuracy of performance testing deteriorate
Solution Approach 1:
The patent creates a virtual copy of actual operational conditions by generating simulation signals that replicate real charge/discharge command patterns. This copying approach maintains operational simplicity while dramatically improving measurement precision, as the simulation signals now accurately represent the complex electrical environments that batteries actually experience during operation.
Data Source
AI summary
According to one embodiment, a simulation-signal generation device includes a charge/discharge-condition acquirer to acquire a charge/discharge condition of an energy-storage system; a signal-characteristic-amount acquirer to acquire a plurality of charge/discharge-signal characteristic amounts for the energy-storage system; a characteristic-signal generation processor to generate a plurality of characteristic signals respectively having the plurality of charge/discharge signal characteristic amounts, based on the plurality of charge/discharge signal characteristic amounts; and a simulation-signal generator to synthesize the plurality of characteristic signals to generate a simulation signal serving as a command signal of charge/discharge for the energy-storage system.