Power distribution automation system connected with miniature multifunctional synchronous phasor measurement device and control method

A power distribution automation and multi-functional technology, applied in circuit devices, information technology support systems, fault detection according to conductor type, etc., can solve the problems of simultaneous access and status analysis of a large number of devices

Pending Publication Date: 2022-03-29
NARI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The development and application of synchrophasor measurement technology in the main network provides new means and methods to ensure the safe and reliable operation of the distribution network under the new situation. There are great differences in device installation, signal acquisition, communication networking, and point selection and layout. The traditional synchronized phasor measurement technology cannot meet the needs of existing and future distribution network synchronization measurement.
The safety and stability of large-scale distributed power and electric vehicles connected to the distribution network has always been a difficult problem that the industry staff is committed to solving. The distribution network automation system architecture cannot meet the simultaneous access and status analysis of a large number of devices

Method used

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  • Power distribution automation system connected with miniature multifunctional synchronous phasor measurement device and control method

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Embodiment 1

[0022] Such as figure 1 As shown, in this embodiment, a distribution automation system connected to a miniature multifunctional synchrophasor measuring device is based on the existing distribution automation system equipment to carry out hardware equipment expansion and software function upgrades, including several miniature PMUs Device, DWAMS acquisition subsystem and dynamic information database module, DWAMS acquisition subsystem includes basic application module, PMU application module. In terms of hardware, it adopts distributed open LAN switching technology, dual-machine redundant configuration; in terms of software, it adopts a layered distributed system structure, uses network management technology, database middleware, object-oriented and application component technology, and follows the public information model of IEC 61970 ( CIM) and Component Interface Specification (CIS), based on existing basic applications, integrate various application analysis software such as...

Embodiment 2

[0031] The power distribution automation system adopts the 26865 protocol to support the monitoring of the operating status of the micro-PMU device, and collect the communication status of the micro-PMU device, including non-communication and normal communication. When there is no communication, the micro PMU device communicates through TCP / IP; through the collected communication data, the communication network is judged, and the judgment of network abnormality is divided into: ① TCP / IP read and write errors in network communication; ② physical network interruption ( For example, channel interruption, network card failure, etc.). When it is judged that the network communication is interrupted, a sign is immediately marked and an alarm is generated.

[0032]During normal communication, the CRC check code and PMU status flag on each frame data packet sent by the micro PMU device in real time are collected, and the status of the current micro PMU device can be judged in real time...

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Abstract

The invention discloses a power distribution automation system connected with a miniature multifunctional synchronous phasor measurement device, which comprises a plurality of miniature PMU devices and a DWAMS acquisition subsystem, the miniature PMU devices adopt an extended 26865 protocol to be connected with the DWAMS acquisition subsystem, and the DWAMS acquisition subsystem comprises a basic application module, a PMU application module and a dynamic information database module. The basic application module is used for collecting and processing data of the micro PMU device, the PMU application module carries out fault diagnosis positioning and state estimation according to the collected and processed data, and the dynamic information database module is used for storing information data. The power distribution automation system can gather a large number of micro PMU devices, and gather, process and forward data of the devices; the PMU application module can complete the functions of fault diagnosis, state estimation and operation state coordination control of the system. The invention also discloses a control method of the power distribution automation system.

Description

technical field [0001] The invention relates to power system power distribution automation technology, in particular to a power distribution automation system connected to a miniature multifunctional synchronized phasor measurement device and a control method. Background technique [0002] With the access of large-scale distributed power sources to the distribution network and the rapid growth of electric vehicle charging load, the interaction between supply and demand of users is becoming more and more frequent, which makes the distribution network appear bidirectional, intelligent, and power electronic. Sources, networks, and loads have stronger temporal and spatial uncertainties, showing normalized random fluctuations and intermittences. The development and application of synchrophasor measurement technology in the main network provides new means and methods to ensure the safe and reliable operation of the distribution network under the new situation. There are great dif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/38H02J13/00G01R31/08
CPCH02J3/00H02J3/388H02J13/00001H02J13/00002H02J13/00006H02J13/00028G01R31/086Y02E60/00Y04S40/12
Inventor 张婷马翔邵嗣杨胡古韦方陈刘舒郑舒雷远刘明祥
Owner NARI TECH CO LTD
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