Modular Power Supply System With Isolation Units
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Solution Overview
Problem
Current power supply systems for datacenters lack flexibility in voltage combinations, system architecture adaptation, and safety during maintenance, as they fail to effectively isolate high and low voltages, leading to inefficiencies and safety risks.
Innovation Solution
A power supply system comprising a high-voltage input power distribution cabinet, a high-low voltage conversion cabinet with insulating partitions and power supply modules that include high-voltage and low-voltage cavities with isolation units, allowing for electrical isolation and flexible voltage management, reducing the size and weight of the system while accommodating various architectures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If single-phase power supply modules are connected in series and all modules are placed in one box without isolation structure, then the system structure is simple, but it cannot guarantee safety during live maintenance and cannot flexibly correspond to different input and output voltages
Solution Approach 1:
The power supply system is segmented into multiple independent functional modules, each containing power supply units with isolated high-voltage and low-voltage chambers. This modular segmentation allows individual modules to be maintained separately while the system remains operational, improving safety during live maintenance while maintaining manageable system complexity.
Solution Approach 2:
Isolation structures are introduced as intermediary elements between high-voltage and low-voltage chambers within each module. These isolation walls and insulated busbars act as mediators that prevent direct electrical contact, enabling safe maintenance of low-voltage components while the high-voltage side remains energized.
2Device complexity
If single-phase power supply modules are connected in series without isolation structure, then the number of components is reduced, but it cannot flexibly correspond to different input and output voltages
Solution Approach 1:
The system employs dynamic configurability where multiple power supply modules can be connected in series or parallel arrangements, and isolation structures can be selectively positioned, allowing the system to adapt to different voltage requirements. This dynamic architecture enables flexible voltage combinations while maintaining a standardized modular component set.
Solution Approach 2:
Each power supply module is designed as a universal building block that can function in multiple configurations. The standardized modules with isolated chambers can be arranged differently to meet various voltage requirements, making the same component set versatile for different applications without increasing component variety.
3Volume of stationary object
If all power supply modules are placed in one box without isolation structure, then the system size is minimized, but it cannot guarantee safety during live maintenance
Solution Approach 1:
The isolation structures are nested within the compact module design, with high-voltage and low-voltage chambers arranged in a nested or adjacent configuration separated by thin isolation walls. This nested arrangement provides electrical isolation and safety while minimizing the overall volume of each module and the entire system.
4Reliability
If isolation structures are added between high voltage and low voltage chambers, then safety during maintenance is improved, but the system size and number of components increase
Solution Approach 1:
Thin isolation walls and insulated busbars are used as the isolation structures between high-voltage and low-voltage chambers. These thin film-like barriers provide effective electrical isolation while occupying minimal space, thereby improving safety during maintenance without significantly increasing the system size.
Data Source
AI summary
Disclosed is a power supply system, including: a high-voltage input power distribution cabinet, a high-low voltage conversion cabinet, and a low-voltage output and control cabinet, the high-low voltage conversion cabinet is provided with at least one high-voltage chamber provided with a high-voltage bus bar, at least one low-voltage chamber provided with a low-voltage bus bar, an insulating partition between the high-voltage chamber and the low-voltage chamber and a plurality of power supply modules; each of the power supply modules bridges the high-voltage and low-voltage chambers and includes a high-voltage cavity, a low-voltage cavity and an isolation unit, connecting terminals of the high-voltage and low-voltage cavities are respectively disposed corresponding to the high-voltage and low-voltage chambers and electrically connected to the high-voltage and low-voltage bus bars respectively, and the isolation unit is connected to one end of the high-voltage cavity and one end of the low-voltage cavity.