Battery Device Switching Control for Stable Energy Storage Bypass
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Solution Overview
Problem
Energy storage systems face instability due to voltage fluctuations when bypassing or connecting battery devices, which can lead to system crashes if the operations are not synchronized.
Innovation Solution
An energy storage system with multiple interconnected battery devices and a communication network, where each battery device includes a storage battery, a controller, and switch modules. The controllers communicate to synchronize operations, ensuring simultaneous bypassing or connecting of battery devices to maintain system stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional battery devices are included to enhance stability and provide redundancy, then system reliability is improved, but device complexity increases
Solution Approach 1:
The system divides battery devices into modular units, each with its own controller and switch modules. This segmentation allows independent management of each battery device while maintaining overall system functionality, resolving the contradiction by enabling reliability through redundancy without proportionally increasing complexity.
Solution Approach 2:
Controllers are pre-configured with algorithms to automatically detect failures and execute bypass operations. This preliminary preparation ensures that when failures occur, the system can quickly reconfigure itself without manual intervention, improving reliability while keeping the control logic standardized and manageable.
2Ease of operation
If bypass operations and connection operations are performed without synchronization, then operational flexibility is improved, but voltage fluctuations occur causing system crashes
Solution Approach 1:
Controllers continuously monitor system voltage and battery device states, using this feedback to coordinate bypass and connection operations. When voltage thresholds are approached or failures detected, controllers automatically synchronize operations to maintain voltage stability, preventing crashes while preserving operational flexibility through automated response.
Solution Approach 2:
Multiple controllers are merged into a coordinated control system where they communicate and synchronize operations. This combining of control functions ensures that bypass and connection operations across different battery devices are harmonized, preventing voltage fluctuations while maintaining the flexibility to perform operations as needed.
3Adaptability or versatility
If battery devices are bypassed individually to handle failures, then adaptability is improved, but voltage fluctuations occur leading to system crashes
Solution Approach 1:
Controllers are pre-programmed with failure detection algorithms and automatic bypass logic. When a battery device fails, the controller immediately executes the pre-planned bypass sequence, preventing voltage fluctuations before they can cause system crashes. This preliminary preparation enables adaptable failure handling while maintaining system stability.
Solution Approach 2:
The system dynamically adjusts the configuration of battery devices based on real-time failure conditions. Controllers can reconfigure which battery devices are active in the series circuit, allowing the system to adapt to various failure scenarios while maintaining stable voltage levels through coordinated dynamic reconfiguration.
Data Source
AI summary
The present application provides an energy storage system, control method thereof, device, electronic equipment, and storage medium. The energy storage system comprises multiple interconnected battery devices and a communication network, where a battery device comprises a positive electrode and a negative electrode, and a battery device comprises a storage battery, a controller, and first and second switch modules; a positive pole of the storage battery is connected to a first terminal of the first switch module, the positive electrode and a first terminal of the second switch module are connected to a second terminal of the first switch module, and a second terminal of the second switch module is connected to a negative pole of the storage battery. The multiple battery devices can simultaneously perform disconnection and connection operations.