Description

AFP9075355 3BHS537443 is an excitation module/automatic voltage regulator(AVR)board module produced by ABB for synchronous motors or generators.It is mainly used to control the magnetic field strength of the generator,achieve automatic adjustment of the output voltage and reactive power of the generator by adjusting the excitation current,ensure that the generator can stably output the rated voltage under different load conditions,and maintain the voltage stability and reactive power balance of the power system.

ABB AFP9075355 3BHS537443

Product parameters

Product model:AFP9075355 3BHS537443

Manufacturer:ABB

Product type:Excitation module/Automatic Voltage Regulator(AVR)board module

Belonging series:UNITOL 1020/UNITOL series(speculated)

Main functions:generator voltage regulation,reactive power control,excitation control

Control method:digital control algorithm

Input voltage:Typical value:voltage input from the generator or PT

Output current:excitation current output

Response time:Fast dynamic response(microsecond to millisecond level,depending on system configuration)

Communication interface:may support industrial buses(such as Modbus,Profinet,etc.,depending on the integrated system)

Protection functions:overvoltage,undervoltage,overexcitation,underexcitation,excitation circuit faults,etc

Environmental adaptability:Industrial grade design,suitable for harsh operating environments

Size/Installation:Modular design,typically installed in dedicated racks or control cabinets

Diagnostic function:Fault diagnosis and status indication

series

It may be a product in ABB’s UNITOL series excitation system.This series includes different models such as UNITOL 6000 and UNITOL 1000,suitable for synchronous generators and motors of various types and sizes.For example,UNITOL 6000 is the latest generation of indirect excitation system and static excitation system based on the AC800PEC high-performance processor platform,which can meet the needs of various types of synchronous generators and motors;UNITROL 1000 is a brushless excitation system suitable for synchronous motors ranging from 100kVA to 80MVA.

ABB AFP9075355 3BHS537443

characteristic

Highly integrated:Integrating the core functions of excitation control,such as voltage and current regulation,power factor control,and protection functions,into one.

High performance control:Adopting advanced control algorithms to ensure stable operation of the generator under various operating conditions and optimize its performance.

Flexible configuration:Supports multiple configuration options,allowing users to easily adjust control parameters and protection functions through software settings or hardware jumpers to meet the needs of different generators and applications.

Powerful protection function:It has comprehensive protection functions,such as overcurrent protection,undervoltage protection,over temperature protection,etc.,to ensure the safe operation of the generator.

Communication interface:It usually has standard communication interfaces such as Modbus,Profibus,etc.,which facilitate data exchange with monitoring systems,energy management systems,etc.

role

Voltage regulation:Automatically adjust the output voltage of the generator to maintain it near the set rated value,unaffected by load changes,grid voltage fluctuations,and other factors.

Reactive power control:By adjusting the excitation current,the reactive power output of the generator is controlled to meet the demand for reactive power in the power system,maintain voltage stability and power factor of the grid.

Improving the stability of the power system:In the event of a fault or disturbance in the power system,quickly responding and adjusting the excitation of the generator can help improve the stability and reliability of the power system.

Protection of Generator:Real time monitoring of the operating status of the generator.In case of abnormal conditions such as overcurrent,overvoltage,overheating,etc.,timely protective measures should be taken,such as cutting off the excitation current,to prevent damage to the generator.

ABB AFP9075355 3BHS537443

purpose

Generator excitation control:widely used in the excitation systems of various types of generators,including thermal power plants,hydropower plants,wind power plants,diesel generator sets,etc.,to ensure the stable operation and power quality of the generators.

Industrial motor control:In some large industrial motors,such as synchronous motors,it is used to control the excitation of the motor,adjust the operating performance of the motor,and improve the efficiency and power factor of the motor.

application area

Electric power generation:In power plants,it is used to regulate the excitation system of the generator to ensure stable electricity generation and meet the power supply needs of the grid.

Industrial drive system:used in industrial production to control the excitation of industrial motors to meet different production process requirements,such as in large-scale motor drive systems in metallurgy,chemical,papermaking and other industries.

Transportation:In the excitation system of electric vehicles such as electric trains and electric ships,it is used to control the operation of motors,improve energy utilization efficiency and operational performance.

Renewable energy generation:Excitation control of synchronous or asynchronous generators in wind and solar power plants can help optimize power generation efficiency,improve power quality,and achieve stable grid connection of renewable energy.