Distributed Power Control Modules for DC to AC Conversion

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Solution Overview

Problem

Off-grid energy storage systems face inefficiencies in energy transfer as DC power is transmitted between sites, leading to significant energy loss and system malfunctions disrupting energy delivery until repairs are made.

Innovation Solution

A distributed smart power and storage transfer architecture with a stored power transfer control system, including a remote monitoring processor, distributed energy storage systems, and power control modules that communicate via buses to manage and synchronize power output, ensuring efficient AC power distribution and adaptive learning to compensate for malfunctions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If DC power is transmitted between sites, then energy can be transferred from one site to another, but significant energy loss occurs during transmission

Engineering Contradiction:

Improveenergy loss during transmissionVSAvoidenergy transfer efficiency

Core Design Contradiction:

Loss of energyVSProductivity

Solution Approach 1:

The patent changes the electrical parameter of power transmission from DC to AC. The power control modules convert DC power from energy storage systems into AC power for distribution, which reduces transmission losses and improves transfer efficiency between sites.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent introduces power control modules as intermediary devices between energy storage systems and distribution lines. These modules perform DC-to-AC conversion and intelligent control, acting as mediators that optimize power transmission and reduce energy loss during inter-site transfer.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the system operates without redundancy, then device complexity is reduced, but system malfunctions cause complete energy delivery interruption until repairs

Engineering Contradiction:

Improvecontinuous energy deliveryVSAvoidsystem architecture complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the centralized control system into distributed power control modules at each site. Each module operates independently with local intelligence, allowing the system to maintain functionality even when individual modules fail, thus improving reliability without requiring extensive redundancy.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The power control modules具备 self-diagnosis and adaptive control capabilities, allowing them to detect malfunctions and adjust operations autonomously. This self-service functionality maintains energy delivery continuity without requiring immediate external intervention or complex redundant systems.

Inventive Principle:

Principle #25Self-service

3Ease of operation

If centralized control is used, then system simplicity is maintained, but remote monitoring and adaptive control become difficult

Engineering Contradiction:

Improveremote monitoring capabilityVSAvoidcontrol system architecture

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent adds a communication dimension to the control architecture, enabling data exchange between distributed power control modules and remote monitoring systems. This allows centralized oversight and adaptive control while maintaining the simplicity of local module operations.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The power control modules perform multiple functions including local power conversion, autonomous control, remote monitoring communication, and system coordination. This multi-functionality reduces the need for separate dedicated systems while enhancing operational capabilities.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution enhances energy transfer efficiency by converting DC to AC power, reducing losses, and enables continuous energy delivery by adaptive power management and redundancy, minimizing downtime during system malfunctions.

Implementation Method 1

enhances energy transfer efficiency by converting DC to AC power

Methodology Applied

Scientific EffectDC to AC power conversion:

Data Source

PatentUS10361563B2Smart power and storage transfer architecture

Publication Date: 2019.07.23 INT POWER SUPPLY AD

AI summary

A system and method for a distributed smart power and storage transfer architecture. An embodiment includes a stored power transfer control system comprising a remote monitoring processor located remotely from a plurality of sites, wherein the plurality of sites are connected to a distribution line. The stored power transfer control system further includes a plurality of energy storage systems distributed across the plurality of sites and a plurality of power control modules distributed across a plurality of sites. At least one of the plurality of power control modules is configured to receive, by a first communication bus, a data telegram from a monitoring processor and forward, by the first communication bus, the data telegram to a connected power control module. Further the at least one of the plurality of power control modules is configured to supply the distribution line with power output by a respective energy storage system according to the data telegram.