Reconfigurable BESS AC Wiring for Multi-Grid Compatibility
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Solution Overview
Problem
Conventional BESS systems require multiple stock keeping units (SKUs) to accommodate different grid configurations worldwide, leading to increased development and service complexity.
Innovation Solution
A reconfigurable BESS AC wiring system comprising a battery module with a plurality of batteries and microinverters connected via branch and trunk cables to a wiring box, allowing for flexible reconfiguration of AC wiring to adapt to various grid configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional BESS systems use fixed wiring configurations for different grid configurations, then each configuration requires a separate SKU, but this increases device complexity and service complexity
Solution Approach 1:
The patent implements a reconfigurable wiring system where the AC wiring inside the wiring box can be dynamically reconfigured for different grid configurations (single-phase, split-phase, two-phase, three-phase). This dynamic reconfiguration capability eliminates the need for multiple fixed SKUs while maintaining adaptability to various grid types, directly resolving the contradiction between versatility and service complexity
Solution Approach 2:
The patent creates a universal BESS platform that can serve multiple grid configurations through a single standardized hardware design. The wiring box contains reconfigurable connections that allow the same physical system to adapt to different electrical configurations worldwide, achieving multi-functionality without increasing service complexity
2Adaptability or versatility
If multiple SKUs are used to accommodate different grid configurations, then each grid type can be properly supported, but this increases development complexity
Solution Approach 1:
The patent establishes a universal BESS platform with standardized hardware and reconfigurable wiring that can support multiple grid configurations (120/240 Split-Phase, 120/208 Two-phase, 120/208Y Three-Phase in North America; 230V Single-Phase, 230/400Y Three-Phase in RoW). This single universal design eliminates the need to develop and maintain multiple separate SKUs, directly reducing development complexity while preserving full grid configuration support
Solution Approach 2:
The patent segments the wiring configuration into modular, reconfigurable connections within the wiring box, allowing independent adjustment of wiring arrangements for different grid types without affecting other system components. This modular segmentation enables a single SKU to handle multiple configurations through simple wiring changes rather than requiring multiple complete system designs
Data Source
AI summary
A battery energy storage system is provided and comprises a battery module comprising a plurality of batteries and a plurality of microinverters including wiring that is grouped in a branch cable that connects to a trunk cable for connecting the wiring to a wiring box.


