Power Distribution Unit With Input Output Power Sensing
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Solution Overview
Problem
Conventional power distribution units (PDUs) in data centers lack the capability to accurately monitor and manage power usage, leading to inefficiencies and increased energy costs, as they do not provide detailed metrics for power consumption and status within the data center and its components.
Innovation Solution
A power distribution system that senses and outputs current and voltage metrics at the input and output of a PDU, enabling the measurement of power metrics such as aggregate power, power factor, crest factor, active and apparent power, and energy consumption, which can be used to identify inefficiencies and anomalies, and provide data for billing and optimization purposes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional PDUs are used to distribute power, then power distribution is achieved, but power monitoring and measurement capabilities are lacking
Solution Approach 1:
The patent introduces current transformers and voltage transformers as intermediary devices to sense electrical parameters without directly interfering with the power distribution function. These transformers act as mediators that convert high-power signals into measurable low-power signals, enabling monitoring capabilities while maintaining the original PDU structure intact.
Solution Approach 2:
The patent replaces direct electrical measurement methods with transformer-based sensing. Instead of using complex electronic circuitry to directly measure high-voltage currents and voltages, the system uses electromagnetic transformation to convert these parameters into measurable forms, simplifying the measurement architecture while improving safety and accuracy.
2Use of energy by moving object
If power metrics are not monitored, then PDU operation is simple, but energy consumption efficiency cannot be optimized
Solution Approach 1:
The patent implements a feedback mechanism where measured power metrics (current, voltage, power factor, energy consumption) are continuously monitored and made available through communication interfaces. This feedback enables operators to optimize energy consumption by identifying underutilized equipment, detecting anomalies, and making informed decisions about power distribution management.
Solution Approach 2:
The PDU system performs self-monitoring and self-reporting of its operational parameters. The integrated sensors and communication modules enable the PDU to automatically track and report its own power distribution metrics without requiring external monitoring equipment, facilitating autonomous energy management and optimization.
3Measurement precision
If detailed power metrics are measured, then energy tracking accuracy is improved, but the complexity of the power distribution system increases
Solution Approach 1:
The patent combines multiple measurement functions (current sensing, voltage sensing, power factor measurement, energy accumulation) into a single integrated PDU system. By merging these functions into one cohesive unit with centralized processing and communication capabilities, the system achieves high measurement precision without proportionally increasing overall system complexity.
Solution Approach 2:
The PDU system is designed with multi-functionality, serving both power distribution and comprehensive power monitoring roles simultaneously. The same hardware infrastructure supports multiple measurement parameters and communication protocols, eliminating the need for separate dedicated monitoring equipment and reducing overall system complexity while maintaining high measurement accuracy.
Data Source
AI summary
Power distribution apparatus with input and output power sensing and a method of use. A power distribution unit includes a sensor that senses power parameters of power outputs and a power input, a processor, and a communication circuit. A power management system includes a power manager, a user interface, and a plurality of power distribution units that may be located in one or more equipment cabinets and data centers. The system may compute apparent power, RMS power, power factor, energy usage over time, power usage history, or environmental history for any or all of the power distribution units. The system may identify an under-utilized server connected to one of the power distribution units and initiate a shut-down of that server.