Autonomous Phase Synchronization for Distributed Power Generation

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Solution Overview

Problem

The reliability of electrical power transmission networks is compromised by phase unsynchronization among increasing numbers of renewable and smaller power sources, leading to inefficiencies and potential failures, as existing systems require centralized synchronization and are not adaptable to geographic locations and mobility.

Innovation Solution

A system and method for electrical phase synchronization using geographic location and time synchronization data to autonomously phase synchronize electrical power generation devices with the transmission network, eliminating the need for centralized devices and allowing for flexible connection and disconnection, thereby reducing energy waste and enhancing network efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If centralized synchronization control is used to phase synchronize electrical power sources with the transmission network, then phase synchronization reliability is improved, but system complexity and operator dependency increase

Engineering Contradiction:
Improvephase synchronization reliabilityVSAvoidcentralized control system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The centralized synchronization control function is segmented and distributed to individual power generation devices. Each device independently determines its phase synchronization timing based on geographic location data and transmission line characteristics, eliminating the need for a centralized control system while maintaining synchronization reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each power generation device autonomously performs phase synchronization without requiring operator commands or centralized control. The control unit automatically calculates synchronization timing based on stored geographic location data and transmission line parameters, enabling self-service operation.

Inventive Principle:
Principle #25Self-service

2Stability of the object's composition

If power sources operate in standby mode to synchronize phases before connection, then network stability is improved, but energy efficiency deteriorates due to power loss during stabilization

Engineering Contradiction:
Improvenetwork stabilityVSAvoidpower loss during stabilization
Core Design Contradiction:
Stability of the object's compositionVSLoss of energy

Solution Approach 1:

Geographic location data and transmission line characteristics are pre-stored in the control unit before connection. This allows the device to immediately calculate and execute phase synchronization upon connection without requiring standby operation or stabilization period, eliminating energy loss while maintaining network stability.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If traditional phase synchronization methods are used, then operator control is maintained, but adaptability to geographic locations and mobility requirements deteriorates

Engineering Contradiction:
Improveoperator control capabilityVSAvoidadaptability to geographic locations
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The synchronization timing is dynamically determined based on geographic location parameters and transmission line characteristics. By using geographic coordinates as input parameters, the system automatically adapts to different locations and configurations, providing both ease of operation and high adaptability.

Inventive Principle:
Principle #35Parameter changes

4Power

If multiple power sources are connected to the network, then power supply capacity is improved, but phase synchronization difficulty increases leading to potential failures

Engineering Contradiction:
Improvepower supply capacityVSAvoidphase synchronization complexity
Core Design Contradiction:
PowerVSDevice complexity

Solution Approach 1:

Each power generation device uses an identical synchronization method based on geographic location data and transmission line characteristics. This standardized approach allows multiple devices to be connected without increasing synchronization complexity, as each device independently applies the same algorithm to determine its synchronization timing.

Inventive Principle:
Principle #26Copying

Data Source

PatentUS9293924B2Electrical phase synchronization
Publication Date: 2016.03.22 RAYTHEON CO
  • US9293924B2 patent drawing
  • US9293924B2 patent drawing
  • US9293924B2 patent drawing

AI summary

The electrical phase synchronization technology includes a system, a method, and/or components thereof. In some examples, the electrical phase synchronization system includes an electrical power transmission network having a plurality of transmission lines and a plurality of electrical power generation devices. Each electrical power generation device includes an electrical power source and a control unit.