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KW2000 civil intelligent power distribution monitoring system
First, KW2000 system software overview
Deep KW-2000 Temin intelligent distribution monitoring system based on field distribution system, by using fieldbus, fiber ring network and other communication network, remote substation monitoring, power collecting and power quality management, work management organic distribution system under normal and accident monitoring, protection, control, metering and power supply departments together, to improve the quality of power supply, which is more convenient and users to establish a close contact, KW-2000 system to meet the diversity of user requirements with reasonable price, strive to supply the economy better, enterprise management more effective.
The system uses a typical three story structure, the level is clear, easy to understand and build.
 KW-2000 monitoring system integrates a variety of domestic and international industrial field communication protocol, such as IEC60870-5-101/102/103/104, CANBus, ProfiBus, DNP, CDT, ModBus, IEC61850, support for third party access to a large number of intelligent devices. As shown in the following figure.


Two, KW2000 system software composition and function
This software is composed of high pressure and low pressure with electronic system with electronic system, event recording, alarm subsystem, power quality analysis subsystem, power subsystem, communication topology check subsystem and software rights management subsystem.
1 high voltage distribution system
The high voltage system mainly monitors the main parameters such as voltage, current, power and other main parameters of 10KV high voltage switch cabinet. In this subsystem, the switch can be controlled remotely.
Main real-time monitoring of the operating state of the high voltage circuit. In the high-pressure system diagram can visually see each HV incoming and outgoing operation parameters and state parameters all conventional power transformer, can see the side such as: three-phase voltage, current, active power, reactive power, power factor, frequency, power and other parameters.
2 low voltage distribution system
Low voltage system interface real-time display of the circuit switch status and the power parameters, but also through the line color to distinguish whether the circuit is charged. The line diagram in the interface can be drag and zoom in, to facilitate users to more clearly see the running state.
3 event log and alarm subsystem
Event log
The system has a detailed record function for all user operation, switch variable, parameter limit and the actual needs of the user events, including events in time, location, content, implementation of this event event operators and event types, properties. Can also be based on time to check a certain period of time the event record; event all records can be printed or exported.
Real time alarm and history alarm
Real time alarm is used to display the fault alarm is currently happening, with the alarm time, the alarm alarm alarm name, type, content, alarm location, convenient for users to find out fault in power system.
History alarm for fault alarm record query.
According to user needs can be set up to the highest historical record time of up to 10 years.
4 power quality analysis subsystem
Power quality analysis subsystem adopts automatic mapping technology, frequency spectrum, the harmonic, voltage sag, load imbalance and other steady state or transient power quality indicators for real-time monitoring, analysis and statistics.
5 electric quantity checking subsystem
Power inspection is the record of the circuit power of the historical readings, the current readings. Check daily, monthly and annual examination, statistical power. Can be exported to Excel, Word and PDF format, you can also click on the printer to print out the report.
6 communication topology subsystem
The communication topology adopts a hierarchical network topology, which can be used in the server and the communication management machine, and can be used to judge the communication status of the system.
7 software rights management subsystem
Authority management refers to the administrator can add, delete staff, staff add user name and password, the user real name, job content is required. If the information is incorrect, the information will be prompted. To achieve the level of staff management.
Three, system characteristics
1 extensive use of visualization technology;
2 full use of automatic mapping technology;
3 system intelligent alarm technology;
4 comprehensive realization of the comprehensive anti error function;
5 original automatic load scheduling;
6 precise fault location technology;
7 the idea of distributed design, complex functions by a number of modules to complete;
8 flexible configuration, can be based on the application of specific projects to reduce or increase the configuration of the system;
9 high quality, high quality of the configuration interface;
10 flexible access to a variety of interfaces, communication management machine with RS485, RS232, TCP/IP a variety of interfaces;
Four, the technical indicators of the system
Technical index
Important telemetry update cycle: <1.5S
General telemetry update cycle: <2S
When the accident of telesignalisation displacement transfer time: less than 1S
Accident push screen time: <1.5S
Remote signal change: <1S
Remote control process completed: <2S
Integrated error of analog measurement: <0.5%
Power grid frequency measurement error: <0.01HZ
Call picture response time: 0.5S ~ 2S
The control device to receive instruction execution time: less than 1S
The correct rate of event records: 99.9%
Telemetry accuracy: 99.9%
Capacity in the real time database to support the 20000 basic to maintain the following system indicators:
The service life of the system is not less than 15 years
System MTBF: MTBF system is more than 30000 hours
CPU load: load rate is less than 15% under normal circumstances
Five, the application of the system
Distribution system for civil and commercial use.