Modular Micro-ATS for Redundant Power Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Data centers face challenges in scaling power distribution to meet increasing demands due to high CPU power consumption and frequent changes in load, with traditional techniques failing to manage sudden power draw fluctuations, leading to service interruptions and inefficiencies in power management.
Innovation Solution
The development of a high-density, modular, and redundant automatic transfer switch (ATS) system that allows for efficient power distribution with minimal rack space usage, incorporating locking power cord technologies and intelligent monitoring to ensure secure and efficient power delivery, particularly in seismically active areas, and enabling flexible use of data center floor space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional power distribution techniques are used, then system simplicity is maintained, but the system cannot cope with high rates of change and growth in power demand
Solution Approach 1:
The power distribution system is segmented into multiple independent parallel circuits (A and B sources) that can operate autonomously. Each circuit is equipped with its own breaker and monitoring, allowing independent management and scaling without affecting the entire system. This enables the system to handle growing power demands by adding more parallel circuits rather than redesigning the whole system.
Solution Approach 2:
The system changes the operational parameter from single-source sequential power distribution to multi-source parallel power distribution. By implementing parallel redundant circuits with automatic transfer switches, the system can dynamically adjust power flow parameters based on demand, enabling scalability while maintaining manageable complexity through standardized modular components.
2Reliability
If branch circuit loading is maintained at or below 75% capacity to account for inrush loads, then cold start reliability is improved, but power distribution efficiency deteriorates
Solution Approach 1:
The system performs preliminary action by pre-configuring parallel redundant power circuits before cold start events occur. The automatic transfer switches are pre-positioned to detect and respond to inrush loads immediately upon equipment startup, distributing the initial power surge across multiple circuits rather than overwhelming a single circuit. This maintains reliability during cold starts while allowing circuits to operate closer to full capacity under normal conditions.
Solution Approach 2:
The power distribution system transitions from static 75% loading limits to dynamic load management through automatic transfer switches that continuously monitor circuit conditions. The system dynamically adjusts power distribution in real-time, allowing circuits to exceed 75% loading temporarily during inrush events by automatically transferring loads between parallel circuits, thereby improving both reliability and efficiency simultaneously.
3Device complexity
If single power supply per EDP device is used, then device simplicity is maintained, but vulnerability to power failures increases
Solution Approach 1:
The system merges multiple power sources (A and B circuits) into a unified power delivery architecture at the circuit level, while maintaining simple single-power-cord connections at the device level. The automatic transfer switch combines the functionality of monitoring both power sources and executing failover, presenting a simple interface to the EDP device while providing robust redundant power delivery behind the scenes.
4Reliability
If auto-switching power plugstrips are installed, then power failure redundancy is improved, but rack space consumption increases
Solution Approach 1:
The automatic transfer switch functionality is extracted from the traditional plugstrip form factor and integrated into the rack's power distribution infrastructure at the circuit breaker panel level. This extraction eliminates the need for bulky plugstrip-mounted ATS devices, freeing up rack space while maintaining power failure redundancy through the centralized parallel circuit architecture.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Systems and methods are provided for reliable redundant power distribution. Some embodiments include micro Automatic Transfer Switches (micro-ATSs), including various components and techniques for facilitating reliable auto-switching functionality in a small footprint (e.g., less than ten cubic inches, with at least one dimension being less than a standard NEMA rack height). Other embodiments include systems and techniques for integrating a number of micro-ATSs into a parallel auto-switching module for redundant power delivery to a number of devices. Implementations of the parallel auto-switching module are configured to be mounted in, on top of, or on the side of standard equipment racks. Still other embodiments provide power distribution topologies that exploit functionality of the micro-ATSs and/or the parallel micro-ATS modules.