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Electric system key equipment actualizing-one-prepared method and system based on network

A key equipment and power system technology, applied in circuit devices, electrical components, etc., can solve problems such as slow speed, easy to be interfered, and errors in the dual-machine hot backup scheme

Active Publication Date: 2015-04-22
SHANDONG LUNENG SOFTWARE TECH
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Problems solved by technology

[0004] The early dual-machine hot backup schemes of key equipment such as communication management machines often choose serial ports or input signals for heartbeat communication, which is slow and easily interfered, resulting in errors in the dual-machine hot backup solution

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  • Electric system key equipment actualizing-one-prepared method and system based on network
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  • Electric system key equipment actualizing-one-prepared method and system based on network

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Embodiment Construction

[0054] The present invention is described in detail below in conjunction with accompanying drawing:

[0055] Each node is composed of a heartbeater, a node state synchronizer, and a node elector; all nodes are connected to the same network through the Ethernet network. The device that provides external services in the network is called a master node (hereinafter referred to as Master), and the device that provides backup services is called a sub node (hereinafter referred to as Standby). The system consists of a main node and multiple sub-nodes. The main node is dynamically generated through elections. When the sub-nodes find that the main node fails, the election mechanism will be triggered to generate a new main node.

[0056] As shown in Figure 1(b), the election and state transition process between nodes in the entire system, new node: a node that has never joined any network, join the network: a new node sends an application to join request message. 1) After receiving a ...

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Abstract

The invention discloses an electric system key equipment actualizing-one-prepared method and system based on a network. The electric system key equipment actualizing-one-prepared system comprises a plurality of nodes, one of the multiple nodes is the main node, other nodes are the child nodes, the nodes are in communication through the network, and the states of the nodes include the main state, the voting state and the auxiliary state. The main node maintains the global state of a bus and manages the child nodes through a node state list and a node priority list. According to the electric system key equipment actualizing-one-prepared method and system, the main node is dynamically generated through voting, when the child nodes find that the main node loses efficacy, a voting mechanism will be trigged, and therefore the new main node is generated. By means of the voting mechanism of the electric system key equipment actualizing-one-prepared method and system, it can be guaranteed that the scheme is accurate and reliable.

Description

technical field [0001] The invention relates to a method and system for realizing network-based key equipment of an electric power automation system with multiple machines backing up one. Background technique [0002] The key equipment of the power automation system often uses the traditional dual-machine hot backup solution, and in many cases the dual-machine still cannot meet the requirements for high reliability. The multi-machine standby solution is a more reliable choice. [0003] For some key equipment in the power automation business direction, we will use multiple machines for one backup (including two machines for one backup). Realize that there is only one device providing external services at any time, and other devices are in a standby state. When the node providing the service fails, one of the spare nodes is selected to provide external services. [0004] The early dual-system hot backup scheme for key substation equipment such as communication management ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00
Inventor 傅孟潮巩方彬曹淑英熊建成张晓花
Owner SHANDONG LUNENG SOFTWARE TECH
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