PDU Phase Rotation Control for Redundancy Without Separate Power Feeds
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Companies without separate power feeds or uninterruptible power supplies (UPS) face significant risks of system downtime due to unexpected phase loss events, leading to costly disruptions and reputational damage.
Innovation Solution
A dynamic power distribution unit (PDU) with phase rotation capability, controlled by a system controller that identifies redundant PDU groups, compares input parameters, and sends phase rotation commands to change phase rotation switches when certain conditions are met, ensuring power redundancy without a UPS.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If companies use redundant power supplies (2N) at product level, then power reliability is improved, but separate independent input power feeds are still required which increases infrastructure complexity and cost
Solution Approach 1:
The system segments the power distribution into multiple PDUs that can be independently controlled. Each PDU receives power from the same feed but distributes it differently through phase rotation, allowing redundancy without requiring separate infrastructure feeds.
Solution Approach 2:
The system changes the phase parameter of power distribution dynamically. By rotating phases across different PDUs, the system creates redundant power paths using the same physical infrastructure, eliminating the need for separate input feeds while maintaining reliability.
2Reliability
If companies implement phase rotation for power redundancy, then protection against phase loss is improved, but system complexity and control mechanisms increase
Solution Approach 1:
The system dynamically adjusts phase rotation based on real-time monitoring of power conditions. The controller automatically detects phase loss events and reconfigures the phase rotation of PDUs accordingly, providing adaptive protection without manual intervention.
Solution Approach 2:
The system implements continuous feedback monitoring of power feed conditions. When a phase loss is detected, the feedback mechanism triggers automatic phase rotation reconfiguration to maintain redundancy, creating a self-regulating system that manages complexity through automation.
3Quantity of substance
If dynamic phase rotation is implemented without UPS, then cost is reduced, but vulnerability to phase loss events increases
Solution Approach 1:
The system performs preliminary phase rotation configuration before a phase loss event occurs. By pre-configuring multiple PDU phase rotations and monitoring conditions, the system prepares redundant power paths in advance, enabling automatic failover without UPS protection.
Solution Approach 2:
The system creates a cushioning effect by distributing phase loads across multiple PDUs in advance. When a phase loss occurs, the pre-distributed phase rotations provide immediate backup capacity, cushioning the impact of the failure without requiring expensive UPS infrastructure.
Data Source
AI summary
A computer-implemented apparatus and related method control a dynamic phase rotation unit of a power distribution unit (PDU). The method comprises using a processor of a system controller for identifying a PDU group of two or more redundant PDUs, receiving input parameters from an input port of each of the PDUs in the PDU group, and comparing the input parameters from of the PDU group. The method further comprises conditioned upon a determination of the following both being true: 1) the input parameters are within a predefined threshold of similarity; and 2) no uninterruptable power supply (UPS) is present, then, responsive to the determination sending, via a network, a phase rotation command to a phase rotation controller to change the phase rotation switches on at least one of the PDUs in the PDU group. Otherwise, responsive to the determination, not sending the phase rotation command.