Modular UPS Dual Independent Bus Redundancy
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Solution Overview
Problem
Conventional uninterruptible power supply (UPS) systems have single points of failure, which can lead to system failure if a single point along the bus connections malfunctions, posing a risk to critical electronic components.
Innovation Solution
The UPS system incorporates a modular design with dual independent bus systems that can be reconfigured as single or dual bus structures, using tie bars to enable flexible power distribution and redundancy, ensuring continuous power supply even if one bus fails.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single bus system is used to connect battery subsystem to UPS subsystem, then the system structure is simple, but the system has single points of failure that can cause complete system failure
Solution Approach 1:
The bus system is segmented into multiple independent parallel busses (first bus and second bus) connecting the battery subsystem to the UPS subsystem. Each bus operates independently, so that a failure in one bus does not affect the other, eliminating single points of failure while maintaining manageable system structure through modular segmentation.
2Reliability
If dual independent bus systems are implemented, then redundancy and fault tolerance are improved, but the device complexity and configuration flexibility are reduced
Solution Approach 1:
The bus system incorporates dynamic reconfiguration capability through switching mechanisms that allow the dual independent busses to be reconfigured as a single bus when needed. This dynamic adaptability enables the system to transition between high-redundancy dual-bus mode and simplified single-bus mode, providing both fault tolerance and configuration flexibility.
Solution Approach 2:
The bus system is designed with multi-functionality, serving both as dual independent busses for high-redundancy operation and as a reconfigurable single bus for simplified configurations. The same physical infrastructure supports multiple operational modes, eliminating the need for separate systems for different configurations and enhancing overall versatility.
3Reliability
If parallel dual bus configuration is used, then power delivery redundancy is improved, but the manufacturing and installation complexity increases
Solution Approach 1:
The manufacturing process is segmented into modular steps where each bus is constructed and tested independently before being assembled into the parallel dual-bus configuration. This modular segmentation simplifies manufacturing by allowing standardized production of individual bus modules that can be reliably assembled, reducing overall manufacturing complexity despite the increased redundancy.
Data Source
AI summary
An uninterruptible power supply (UPS) system that may incorporate a battery subsystem including at least one battery for generating electrical power, and a UPS subsystem including at least one power module. At least one first bus system may couple the battery subsystem to the UPS subsystem to supply electrical power to the UPS subsystem. An input and output (I/O) subsystem is in communication with an output of the UPS subsystem for generating an output signal. At least one second bus system may be used for coupling the output of the UPS subsystem to the I/O subsystem. At least one of the first and second bus systems may include a pair of parallel coupled, independent busses, and may further have a tie bar for enabling the pair of busses to be reconfigured as a single bus.