GE EX2100 Digital Excitation Control System

GE EX2100 is a fully digital static excitation control system designed for synchronous generators including steam, gas and hydro turbines. It accurately regulates generator rotor excitation current to maintain stable terminal voltage and reactive power output, featuring redundant control architecture for high reliability in power generation applications.

This excitation system integrates AVR control, power system stabilizer (PSS) and multiple protection functions. It supports seamless communication with turbine control systems, DCS and HMI. It is widely supplied as complete sets and spare modules for new power plant construction and legacy excitation system retrofit projects.

Main Specifications

1. Brand: GE; Model: EX2100; Type: Digital Excitation Control System
2. Applicable Equipment: Steam turbine, gas turbine and hydro synchronous generators
3. Control Functions: AVR, PSS, reactive power / power factor control, manual excitation control
4. Architecture: Optional dual redundant controllers for bumpless switchover
5. Communication: Interface with Mark V/VI turbine control system, DCS and SCADA
6. Operating Temp: -20℃ ~ +60℃; Humidity: 5%~95% non-condensing
7. Supply Status: Complete excitation system and spare control boards for power plant upgrade

Core Functions

1. Automatic voltage regulation to stabilize generator terminal voltage under varying load conditions.
2. Power system stabilizer (PSS) to suppress power oscillation and improve grid stability.
3. Multiple protection functions such as overexcitation, underexcitation and loss of field protection.
4. Redundant control configuration enables non-stop operation when one controller fails.
5. Collect generator PT/CT signals and exchange real-time data with turbine control system.
6. Built-in event recording and fault diagnosis for convenient operation maintenance and troubleshooting.

Application Scenarios

1. Power generation plants with gas, steam and hydro turbine synchronous generators.
2. New power station projects and upgrade of old analog excitation control systems.
3. Cooperate with GE Mark V / Mark VI turbine control systems for unit integrated control.
4. Replacement of failed excitation controllers and spare boards for existing EX2100 cabinets.
5. Spare parts inventory for power plant electrical and automation maintenance teams.
6. Critical power grid connection scenarios requiring high stability and reliable excitation regulation.

FAQ

1. Q: What is GE EX2100?
   A: It is a digital static excitation control system for synchronous generators, used to control generator excitation current and stabilize grid voltage.
2. Q: What is the difference between EX2100 and EX2100e?
   A: EX2100e is the upgraded new generation version, with stronger computing power and richer communication interfaces.
3. Q: Can EX2100 work with Mark VI turbine control system?
   A: Yes, EX2100 can seamlessly communicate with GE Mark V and Mark VI turbine control platforms.