Factory Power Supply Integrated Automation Training System

Factory Power Supply Integrated Automation Training System|Power Supply and Distribution Training Device

• Overview

modernizationFactories (especially large enterprises)High power load density, complex power supply methods, high reliability requirements, and power qualityStrict requirements,Also requested to consider moretallFlexibility to adapt to the increasing power load and power gridnetworkriselevelthe needIn response to this situation, integrate comprehensive automation technology into the factory power supply systemIt has become an inevitable trend and development direction.

“Tygdx- 02Factory Power Supply Integrated Automation Training System|Power Supply and Distribution Training Device ”It is based on the principles of higher vocational education《Factory electrical appliances and power supplyHow to translate、《Electrical equipment and operation maintenanceHow to translate、《Power supply and distribution technologyHow to translate、《Power supply network relay protectionHow to translate、

• 《

Distribution system automation

How to translate

and《

• Distribution Network Automation Technology

How to translate

A comprehensive training system designed based on the practical application and development of the factory power supply system, in accordance with the practical teaching requirements of the course.

characteristic

overall:

Clearly reflect the primary and secondary parts of a typical factory power supply system, and comprehensively use electrical equipment from various practical applications of factory power supply. Be able to meet the practical skills training requirements for the factory power supply system, including power receiving, transmission, distribution, control, and protection;

*Sex:.A comprehensive automation experimental platform integrating control, protection, measurement, and signaling is established through the use of layered and distributed control methods, integrating relevant technologies such as microcomputer relay protection, power metering, PLC, and industrial control configuration for microcomputer functional detection and control;.5practicability:

The system structure is clear, the operation is flexible, and the operation is reliable.

technical performance

1. Input power supply: three-phase four wire AC380V ± 10% 50 ± 2% Hz;

2. Overall capacity: ≤ 3kVA;

3. The training platform adopts iron matte dense pattern spray coating and aluminum panel;

4. RS-485 and Ethernet communication interfaces; Standard MODBUS communication protocol;

• 5. Accuracy of measuring components in microcomputer protection devices: Scale error: not greater than 1%; Measurement current: 0.2 level; Bus voltage: 0.2 level; Output accuracy: 0.2 level; Frequency: 0.01Hz; P, Q, COS Φ; Level 0.5; Communication resolution: not greater than 1ms.

• The training system consists of four parts: the main wiring simulation screen of the power supply and distribution system, the metering cabinet, the control cabinet, and the monitoring software.

• 7. The training system can simulate the power supply and distribution system of a medium-sized factory, using a control panel structure with primary wiring printed on the aluminum panel. Composed of two different voltage levels of 35 kV and 10 kV, the entire system has two 35 kV incoming lines, one of which is normally powered and the other serves as a backup, automatically switching through backup automatic switching; There are two branches of the 35kV busbar outgoing line, one is sent to other branch factories, and the other is reduced to 10kV busbar through the main transformer for local use as the incoming power supply 1; To ensure the reliability of power supply, an additional power supply is added as the incoming power supply 2 for the 10kV busbar. Incoming power supply 1 and incoming power supply 2 are mutually backup and provide power to 10kV section I busbar and 10kV section II busbar respectively. They can also be automatically switched through backup self switching. In order to ensure the reliability of the primary power supply, microcomputer backup automatic switching, microcomputer line and microcomputer transformer protection are configured; In order to ensure the stable operation of the high-voltage motor, high-voltage motor protection is configured; In order to improve the quality of electricity consumption, reactive power compensation devices have been installed; In order to achieve automation control, a PC and PLC controller were configured to achieve the "four remote" function of the entire system.

• 8. The measuring cabinet includes three pointer type AC voltmeters (accuracy level 1.0, range: 0-500V); Three pointer AC ammeter (accuracy level 1.0, range: 0-5A); One pointer type three-phase active power meter and one three-phase reactive power meter; Electronic active and reactive power combination energy meter (1 unit): measuring current: 0.2 level; Bus voltage: 0.2 level; Output accuracy: 0.2 level; Frequency: 0.01HZ; P, Q, COS Φ; Level 0.5; Communication resolution: no more than 1ms; Three phase intelligent acquisition module (3 pieces): Measurement accuracy: current, voltage 0

• 2%, other battery levels are 0

• ％； Equipped with RS-485 communication interface; Digital stopwatch (1 unit): Measurement range 0.0001S-9999.9S, measurement error ≤± 5 × 10-5 × range ± 1 tail digit, with both continuous and triggered functions. Adapt to empty contacts or positive polarity electrical signals of 5V-250V. Continuous manual zeroing, triggering can be manually zeroed or automatically zeroed with the measurement signal.

• 9. The control cabinet includes: microcomputer line protection device (1 unit): with three-stage overcurrent protection, low-voltage blocking current protection, single-phase grounding protection, inverse time overcurrent protection, acceleration before overcurrent, acceleration after overcurrent, reclosing and other functions; Microcomputer motor protection device (1 unit): with functions such as current quick break, overcurrent, current inverse time limit, zero sequence overcurrent protection, negative sequence current protection, and low voltage protection; Microcomputer transformer protection device (1 unit): with functions such as current quick break, overcurrent, current inverse time limit, zero sequence overcurrent protection, negative sequence current protection, and low voltage protection; Microcomputer reactive power compensation device (1 unit): capable of automatically tracking the power factor of the power grid and controlling the switching of capacitor banks, with manual and automatic switching functions. According to the reactive power of the transformer, phase compensation is carried out, and the capacitor bank works in a cyclic manner to ensure that each group of capacitors is evenly operated, thereby reducing energy loss and voltage loss and improving the efficiency of equipment use; Microcomputer backup automatic switching device (1 unit): There are options for incoming line backup switching and bus tie backup switching. When the main incoming power supply simulates a fault and loses power, the backup automatic switching device can automatically switch the backup incoming power supply to the working bus, ensuring that the load connected to the working bus can still work normally and improving the reliability and stability of power supply. At the same time, it has an adaptive function. When the main incoming power supply is detected to be restored, the backup incoming circuit breaker will be automatically disconnected, and the main incoming line will be closed with a delay, achieving automatic switching after the main incoming line voltage is restored and put into operation; At the same time, all microcomputer protection devices use TI's high-performance DSP as the control core chip, which collects the current, voltage, and input/output switch values of the external system and sends them to the LCD display. It has fault recording function and can display fault waveforms.

• 10. The monitoring software for the upper computer, the monitoring host and on-site intelligent devices use RS485 bus and Modbus RTU protocol to build the underlying monitoring network. The main functions are as follows: 1. Configure the primary power supply and distribution system and display real-time changes in the main wiring; 2. Real time collection, display, and storage of various power parameters; 3. Real time and historical curves and reports can be generated for various collected electricity quantities to facilitate experimenters in comparing and analyzing experimental data; 4. Monitor the position of each circuit breaker and the status of the protection action outlet; Capable of controlling the tripping/closing of transmission line circuit breakers; 5. Realize automatic adjustment of voltage and reactive power based on the collected bus power.

• Provide 103, 104, and PLC protocol codes to facilitate the secondary development of new programs by teachers and students.

• 11. The PLC adopts Siemens PLC host.

• 12. Provide one set of matching steel wood structure computer desk.

• 13 Computer:

• Practical Training Project

• Cognition of Factory Power Supply Electrical Wiring Diagram

• Cognition of Electrical Wiring Simulation Diagram for Factory Power Supply

• Training on Wiring and Signal Circuit of Factory Power Supply Secondary Control Circuit

• Wiring methods for voltage and current transformers

• Factory power supply switching operation

• Factory Automatic Device Training

• Preparation and investment condition testing

• Incoming standby (open standby) and adaptive

• Mother Union Backup (Dark Backup) and Adaptive

• Cognition of reactive power compensation device

• Manual/automatic power factor compensation

• Line reactive power control

• VQC voltage reactive power control

• Microcomputer relay protection for high-voltage lines in factories

• Simulate the normal, maximum, and minimum operating modes of the simulation system

• Simulate system short circuit

• The correct operation of an electric stopwatch

• Parameter setting operation of microcomputer line protection device

• Infinite current quick break protection for power lines

• Line with time limited current quick break protection

• Fixed time overcurrent protection for power lines

• Line inverse time overcurrent protection

• Line current voltage interlock protection

• Grounding protection of the line

• Relay protection for high-voltage electric motors

• Parameter tuning operation of frequency converter

• Open loop speed regulation of frequency converter

• The starting method of three-phase asynchronous motor

• Parameter setting operation of microcomputer motor protection device

• Quick break protection for electric motors

• Inverse time overcurrent protection for electric motors

Low voltage protection of electric motors6Grounding protection for electric motorsTransformer microcomputer relay protectionTransformer current quick break protection

Transformer overcurrent protection

Transformer gas protection

Transformer overload protection

Overall monitoring and comprehensive automation

SCADA monitoring

Line fault location, alarm and disconnection

Electric energy curve analysis and report

Open Training of Microcomputer Protection Programming Software

1（1）

～

210kV

• Programming of microcomputer overcurrent protection for power lines(2) Overcurrent protection and automatic reclosing programming(3) Three stage overcurrent protection programming

• (4) Three stage overcurrent protection and automatic reclosing programming(5) Programming of Current Quick Break Protection for Transformers(6) Programming of Overload Protection for Double Winding Transformers(7) Programming of overcurrent protection for dual winding transformers(8) Programming of low voltage starting overcurrent protection for transformers

• 5、 RE-8000 Substation Monitoring Software

• Overview

• The power integrated automation monitoring system supports a distributed architecture based on multiple communication methods, using an object-oriented device description method. The system description has changed from the traditional remote data list based approach to a hierarchical approach, and the object hierarchy can be nested arbitrarily, which can more intuitively and conveniently reflect the composition of the power system.

• The main functional modules of the monitoring system

• Data collection and processing

• SCADA

3module

1Event Display /print/

2Alarm module Graphic interface history report display and printing moduleGraphic Editor ModuleDatabase Definition ModuleReport Editor ModuleProtocol Manager Module

3Historical Archive Module Characteristics of monitoring system

4） Embedded real-time library and commercial libraryMS SQL ServerThe seamless connection method is centered around a real-time database, where real-time data is read and written from memory. The system's real-time database is a hierarchical semi relational structure that meets the real-time requirements of computer monitoring systems. Data and processes can be dynamically migrated to ensure dynamic balance of system load, improve system reliability, and optimize system performance. ）Adopting the network event driven technology of *, a network message transmission system is established on multiple protocols for network messagingSoftBusChannel, through which all network nodes in the system can transmit and receive messages, thus expandingWindowsEvent driven technology enables the system to better adhere to object-oriented design principles and have a clearer structure in the form of network distribution.）The system can provide various means and methods to construct a distributed application topology network system based on different administrative management divisions, geographical location information, transmission volume, and real-time requirements.）The system architecture adopts the Component Object Model, and its specification isIEC 61970 IEC 61968，among which

5IEC 61970 forSCADA/EMSThe component architecture standard is based on the American Institute of Electrical Sciences'CCAPI IEC 61968, for

6DMS/LMS The component architecture standards for load management in distribution network energy metering are allCORBAImplementation in the field of power system automation. The above advantages are to provide a unified application access standard and a unified information exchange channel, which is the same as in the past32 SOFTBUS

7Technology provides a unified command operation interface to optimize the efficiency of distributed systems. ）Support multiple standard network communication protocols when interconnected with factory stations or other remote customer service groups, such asTCP/IP X.25 ATM PPP SLIP

8Wait and provide firewall Firewall

9The mechanism effectively isolates broadcast storms. ）Software development is the use of building uponActiveXOn the basis ofThe software compilation platform adopts an object-oriented design concept, and the software functional modules can be reconfigured to ensure the scalability and maintainability of the system.）There are multiple types of protocol libraries, including those issued by departmentsPOLLING CDT SC-1801 IEC 870-5-101(102 \\\\ 103)The protocol can be converted or forwarded in a transparent, semi transparent, and opaque manner.）The system has functions such as remote maintenance, system debugging, software updates, troubleshooting, etc.）based on

10SVG A unified interface for graphic standards,

11SVG The graphic standard isAUTOCAD IEWaiting to support various

12ActiveX Control, which can be embedded into other applications through

13Web to, toward, at, facingInternetThe release interface is not related to the application system, only the production of the engineering interface for easy unified management.

14） When adopting a dual network structure, it not only achieves the purpose of dual machine hot standby, but also adds the function of balancing network load. This function can better ensure the real-time performance of the system when transmitting perturbed data.

4）

4.1Provide a functional and intuitive advanced computing processing language, which directly selects the objects it calculates and processes from real-time databases. The calculation results can be stored in the database with time stamps, allowing users to easily and flexibly add new functions. The languages provided by the advanced computing processing environment mainly include addition, subtraction, multiplication, division, power operations, trigonometric functions, etc

LOG

4.2Functions, logical operations, bit operations, system clock condition judgment, loop statements, custom procedure calls, return statements, function calls, database operations, user-defined variables, etc.

）The database can be generated, modified, and expanded online, and all data can be accessed by name. Data reading and writing are bound to data processing objects, regardless of the location where the data resides.）

4.3The monitoring system includes some advanced application software modules for substations, such as voltage and reactive power control VQC Application module, fault recording display analysis application module, low current grounding line selection application module, five prevention system application module and other application modules. It can operate as an integrated system with the monitoring system or as a standalone system. ）

4.4It has network topology analysis and dynamic coloring functions. Dynamic coloring is a visual display of the electrical status of various devices in the power system in different colors based on the monitored device status information of the power grid topology.

Main functionsData collection and processing functionsConfigure comprehensive measurement and control terminals according to electrical interval distribution or centralized configuration to complete the collection and processing of switch, analog, pulse and other information, and upload the processed information.

Control operation functionControl the opening of circuit breakers and electric isolation switches for each electrical interval

/

4.6The closing operation and control operation can be implemented by the station level workstation, or manually operated at the measurement and control terminals in each compartment level.

Anti misoperation locking control function

4.7Anti misoperation locking control function Anti misoperation locking control function

The anti misoperation locking control function can be designed with operation locking logic to achieve anti misoperation.

4.8Alarm and event recording function

Exceeding telemetry limits, normal telemetry positioning, accident positioning

4.9SOE

Centralize and unify the management, classification, and processing of information such as protection information, remote control records, and operation records.

4.104 .5 History recording function

Responsible for regularly storing processed data in the historical database for trend analysis and statistical calculations.Display printing function

4.11 Support multi window hierarchical display of various wiring diagrams, geographic maps, system diagrams, curve flow charts, event lists, protection information reports, 3D bar charts, etc. It can manually or automatically print various reports, curve events, etc.

、

4.12Operation ticket system function

Capable of generating rehearsal execution management and printing operation tickets

4.13Protect device management function

Protection equipment library management, fixed value calling, and processing of protection information settings.

4.14 Fault recording and analysis function

Process and save the disturbance data collected by the system, and perform waveform display, fault analysis, printing, etc、Voltage reactive power control function

4.15Perform voltage and reactive power control manually or automatically according to the fifteen zone diagramVQCLow current grounding line selection function

When a small current single-phase grounding occurs, the system automatically alarms and displays the grounded line and phaseSystem self diagnosis and self recovery functionThe system will continuously perform self diagnosis, and if any errors occur, it will repair them on its own

5Remote control function

5.1Can achieve data upload and remote control

• Remote monitoring and maintenance functions2048 利用

• Modem4096 Realize remote monitoring and maintenance

• The256 OPC

• Server functionality128 can serve as

• OPC128 Server usage enables unlimited sharing of data

5.2Main technical indicators

The system has the largest capacityRemote measurement

• ateleindication quantity

• aremote control quantity

• aRemote adjustment quantity

• aelectricity consumption

aMeasurement and control accuracy

• 5.2.1Accuracy of analog measurement

• AC current and voltage0.2%

DC current voltage quantity0.2%

• Power measurement0.5%

frequency0.02Hz

• 5.2.2Pulse input quantity

5.3Allow pulse width

• 10msAllow pulse level

• 30V5.2.3Accident sequence recordRecord resolution

5.42ms

• 5.2.4Success rate of remote control actions

• Success rate of remote control actions100%Response time for displaying real-time data on the entire screenScreen transfer in

• 2sdata refresh1s(Configurable

5.5)

Data processing speedFrom data collection to main station display

• 3sRemote command transmission time

2s(Configurable

• )

• Remote control command selection execution or revocation of transmission time3001s(Configurable

5.6 )

• data communication5.5.1Internal communication2Ethernet architecture network

• ModBus-RTU15.5.2

5.7 Remote forwarding

• Automatic switching between primary and backup channelsrate

5.8 ～

• 64000 bpsHistorical data archiving

5.9 The smallest time interval for archiving measurement data is

• 1Min The survival cycle is-20year+60The lifecycle of information protection event records, such as records exceeding the limit, is

• yearSystem Availability Rate

System Availability Rate

99.98%

Average * time

Average * time

(MTBF) 50000h

Usage environment

ambient temperature

Interval layer equipment

℃～

℃

relative humidity

32%

6、 Overview of secondary development software PGDev product

1. Software Introduction

PGDev is an important component of the PG series low-voltage protection development platform, belonging to the PC side software part of the platform, used for the development of software and hardware attribute configuration and algorithm logic diagrams for protection devices.

PGDev mainly completes the following three aspects of work: