Crossed Multi-Ring Control Network for Redundant Low-Node Communication

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Solution Overview

Problem

The existing communication network topologies in power systems require a large number of connection nodes between a valve base controller and submodule controllers, leading to high power consumption and reduced reliability due to the lack of redundant connections.

Innovation Solution

A control system utilizing a crossed multi-ring-network redundant network topology structure, where connection nodes of a control object are connected to form ring networks with controlled objects, reducing the number of required connection nodes and providing redundant pathways for improved reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If point-to-point direct connection is used for communication between control object and controlled objects, then communication reliability is improved, but the number of connection nodes increases and power consumption increases

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidpower consumption of control object

Core Design Contradiction:

ReliabilityVSUse of energy by stationary object

Solution Approach 1:

Multiple controlled objects are merged into a ring network topology where the control object connects to multiple controlled objects that are sequentially connected to each other. This allows the control object to communicate with multiple controlled objects through fewer connection nodes while maintaining communication reliability through the redundant ring structure.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The network topology transitions from a one-dimensional point-to-point connection structure to a two-dimensional ring network structure. This dimensional change enables the control object to establish communication paths through multiple controlled objects, reducing the number of direct connection nodes required while providing redundant communication pathways.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Ease of operation

If point-to-point direct connection is used for communication between control object and controlled objects, then communication directness is improved, but the number of connection nodes increases

Engineering Contradiction:

Improvecommunication directnessVSAvoidnumber of connection nodes

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If redundant network connections are implemented, then system reliability is improved, but network complexity increases

Engineering Contradiction:

Improvesystem reliabilityVSAvoidnetwork complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The network is segmented into multiple controlled objects that form a ring topology, where each controlled object acts as an intermediate node. This segmentation allows redundant communication paths to be established without requiring a fully meshed network structure, thereby reducing overall network complexity while maintaining reliability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Each controlled object in the ring network serves multiple functions: it acts as an endpoint for control commands, an intermediate relay node for communication, and a redundant path component for fault tolerance. This multi-functionality reduces the need for dedicated redundant components, simplifying the overall network structure.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP4170979B1Control system with crossed multi-ring-network redundant network topology structure

Publication Date: 2025.11.26 NR ELECTRIC CO LTD

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AI summary

The present invention provides a control system based on a crossed multi-ring-network redundant network topology structure. The control system includes: a control object having a plurality of groups of first connection nodes; and a plurality of controlled objects, each of the plurality of controlled objects having one or a plurality of groups of second connection nodes, wherein any one of the plurality of groups of first connection nodes in the control object are sequentially connected to the second connection nodes of at least two of the plurality of controlled objects to form a ring network, the plurality of groups of first connection nodes corresponding to the control object form a plurality of ring networks, and the plurality of ring networks include the plurality of controlled objects. According to the control system in the present invention, the connection nodes of the control object can be connected to the plurality of controlled objects to form the ring networks, such that the number of the connection nodes of the control object can be effectively reduced, thereby reducing the power consumption of the control object. Moreover, since there are redundant connections between the control object and the controlled objects in the control system, the reliability of the whole control system is improved.