Generator excitation systems


References

Definition: The system which is used for providing the necessary field current to the rotor winding of the synchronous machine, such type of system is called an excitation system. In other words, excitation system is defined as the system which is used for the production of the flux by passing current in the field winding. The main requirement of an excitation system is reliability under all conditions of service, a simplicity of control, ease of maintenance, stability and fast transient response.

What is the purpose of exciter in generator?

1st and the 3rd have a dedicated main exciter machine.The 2nd one has a power electronic based system to power the rotor. In order for the excitation system to work, both the pilot exciter and the main exciter have to work. There is no choice.

Generator excitation systems

What is the purpose of exciter in generator?

1st and the 3rd have a dedicated main exciter machine.The 2nd one has a power electronic based system to power the rotor. In order for the excitation system to work, both the pilot exciter and the main exciter have to work. There is no choice.

Excitation Systems

GE’s Automation & Controls offers a full range of solutions for the generator excitation systems covering most generator sizes and types. From small automatic voltage regulator systems to large static exciters, the EX2100e has a configuration available to meet project requirements.

Power plant generators – what is excitation? Types Of Excitation Systems

With experience from more than 3000 MW excited power and more than 200 excitation and protection projects VEO’s personnel can provide you with state-of-the-art systems for motor and generator excitation.

Generator excitation systems

Brushless Excitation System of Turbo Generator

The brushless excitation system works in the absence of commutator, slip rings and brushes. Instead of these components we are using Permanent Magnet Exciter and three phase main Exciter with silicon diode rectifier the system has generated. With this system we can avoid dust particles which cause a great maintenance cost. The complete structure of this excitation system is explained clearly in this review. Drawback of this system is presence of considerable exciter time constant which affects the rate of change of voltage.

Generator excitation systems

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The Controgen controller is fully digital and combines high performance with easy programming and maximum flexibility.As a plant integrator, we provide customers with either a complete solution or specific components to adapt to their specific for updating and enhancing performance.  

ANDRITZ HYDRO provides four types of THYNE excitation systems:

HIPASE-E is an automatic voltage regulator (AVR) with all limiters, additional regulators and a gate control for all synchronous single-and three-phase generators used in a wide frequency range. The AVR has a modular structure and uses the  long-term  experience  of  the  GMR3 voltage  regulator  of  ANDRITZ  HYDRO.  The proven control and regulator functions were used further and are modified to the latest requirements of power generation.