Power Distribution System Phase Balancing via Digital Communication

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Solution Overview

Problem

Large computing clusters face challenges in managing power distribution due to imbalances in three-phase input voltage and errors in electrical connections, which can lead to inefficient power allocation and potential system instability.

Innovation Solution

A power distribution system with digital communication over electrical power supply cables between management processors in circuit breaker panels and power distribution units, allowing for identification of electrical connections and load balancing across phases, enabling the cluster management entity to determine actual power distribution layouts and consumption patterns, and adjust loads accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If digital communication is implemented over electrical power supply cables between management processors, then the ability to detect and identify electrical connections is improved, but the device complexity increases

Engineering Contradiction:
Improveconnection identification accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The electrical power supply cables serve dual functions: delivering electrical power to the power distribution units and simultaneously transmitting digital communication signals for configuration detection. This multi-functionality eliminates the need for separate communication infrastructure, resolving the contradiction by improving measurement precision without proportionally increasing device complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The power distribution units autonomously detect their electrical connections by analyzing digital communication signals transmitted over the existing power cables. The system self-configures by having each PDU identify which circuit breaker panel supplies it and which phase is active, without requiring external manual configuration, thus improving detection accuracy while minimizing added complexity

Inventive Principle:
Principle #25Self-service

2Stability of the object's composition

If real-time load balancing across phases is implemented, then the stability of power distribution is improved, but the extent of automation required increases

Engineering Contradiction:
Improvepower distribution stabilityVSAvoidautomation level
Core Design Contradiction:
Stability of the object's compositionVSExtent of automation

Solution Approach 1:

The cluster management entity continuously receives configuration and load information from power distribution units via digital communication, analyzes the data to detect phase imbalances, and automatically generates reconfiguration instructions. This closed-loop feedback system maintains power distribution stability through automated real-time adjustments, resolving the contradiction by making automation beneficial rather than burdensome

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system proactively detects potential phase imbalances by continuously monitoring configuration data and load conditions, and automatically implements corrective reconfiguration before instability occurs. This preliminary action approach maintains stability by preventing problems rather than reacting to them, reducing the need for complex emergency automation protocols

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If the power distribution system is customized for specific computing cluster demands, then the adaptability is improved, but the ease of manufacture decreases

Engineering Contradiction:
Improvesystem adaptabilityVSAvoidsystem deployment difficulty
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The power distribution system dynamically adapts its configuration through automated detection and reconfiguration capabilities. Each power distribution unit can identify its connections and report phase information to the cluster management entity, which automatically generates reconfiguration instructions. This dynamic adaptability allows the system to be customized for specific cluster demands without requiring complex manual manufacturing or installation processes

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system automatically configures itself by having power distribution units detect their electrical connections and report phase information without manual intervention. The cluster management entity uses this data to generate appropriate reconfiguration instructions, enabling the system to adapt to specific computing cluster demands while simplifying deployment through self-configuration rather than complex manufacturing processes

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS8792569B2Power distribution system utilizing digital communications to determine the configuration thereof
Publication Date: 2014.07.29 LENOVO GLOBAL TECHNOLOGIES SWITZERLAND INTERNATIONAL GMBH
  • US8792569B2 patent drawing
  • US8792569B2 patent drawing
  • US8792569B2 patent drawing

AI summary

Three-phase electrical power is used to distribute electrical power to electronic devices in a cluster. A power distribution system includes circuit breaker panels and power distribution units for providing electrical power to the electronic devices. The electrical connections within the power distribution system form a digital communication network that communicates identification codes for the purpose of identifying each electrical connection in the power distribution system. A cluster management entity may then collect the identification codes associated with each electrical connection in order to detect the actual configuration of the power distribution system. By further knowing the load of each electronic device and their association with entities of the power distribution system, the cluster management entity may determine the load on each phase and take steps to balance the load.