Automatic Transfer Switch Priority Power Management
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Solution Overview
Problem
Data centers face challenges in managing power switching between primary and reserve power systems, particularly due to oversubscription of the reserve power system, where not all computing systems can be powered during failures, leading to inefficient resource allocation and potential downtime.
Innovation Solution
Implementing an automatic transfer switch (ATS) system that dynamically determines, based on priority and load, whether to switch computing systems from the primary to the reserve power system, ensuring higher-priority systems receive backup power while managing the reserve power system's capacity effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the reserve power system is designed to support all computing systems, then reliability is improved, but the cost and complexity of the power system increases significantly
Solution Approach 1:
The patent segments the computing systems into different priority groups (critical, important, standard) and allocates reserve power capacity accordingly. Each priority level has designated capacity allocations, allowing the system to support all systems at lower priorities while maintaining simpler, more cost-effective reserve power infrastructure compared to supporting all systems at full capacity.
2Reliability
If the reserve power system capacity is increased to support more systems, then reliability is improved, but the cost of the power system increases
Solution Approach 1:
The patent applies local quality by allocating different capacity levels to different priority groups. Critical systems receive guaranteed capacity allocations, important systems receive capacity when available, and standard systems receive capacity only when excess is available. This differentiated approach optimizes the quantity of power capacity deployed while maintaining reliability for essential systems.
3Ease of operation
If automatic switching between primary and reserve power systems is implemented, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring priority levels and capacity allocations in the transfer switch before power failures occur. The system automatically evaluates current conditions against pre-established criteria and executes switching decisions without requiring complex real-time analysis or manual intervention, simplifying the control logic while maintaining automated operation.
Data Source
AI summary
Techniques are described for providing an automatic transfer switch (ATS), such as in a data center, to switch between a primary power system and a reserve power system based on a priority of the computing systems to which the ATS is supplying power. The ATS obtains the priority from a centralized database and obtains an existing load on the reserve power system. If the existing load is too high and the priority of the computing systems coupled to the ATS is too low, then the ATS may not switch to utilizing the reserve power system upon a failure in the primary power system.