Excitation System 

The most important features of this system include the followings: 

• Configuration of Siemens hardware and software-based controls, based on PCS7 300 and 400 class.  
• Using Siemens PCS7 software and CFC programming. 
• High processing speed of control loops (less than 2 milliseconds). 
• Ability to implement the system through hot redundancy in the control, power and cooling systems. 
• Reduction of generator losses by placing its working point at the nominal working point which results in better generator efficiency. 
• Ability to communicate with the proxy bus network and industrial Ethernet network. 
• The ability to change the power of the excitation system from the dynamic to the static mode and the removal of the middle power generators. 
• Full control over the generator by various control modes. 
• Voltage control in automatic mode or AVR (automatic voltage regulator). 
• FCR (Field Current Regulator) flow control. 
• Reactive power control and generator power factor in PF (power factor). 
• Transmission without mutants between control modes. 
• Reactive flow regulator and the ability to determine the line drupe or reactive power drill. 
• Soft power generator startup voltage to prevent sudden spin on triggering. 
• Contains UEL (under excitation limiter), OEL (over excitation limiter) limiting stator current limiter (SCL) and limiting volts per Hz (V/Hz). 
• Display of the generator’s work point in the generator’s power generation curve on the HMI. 
• Design of the power sector in two ways to increase the speed of the De-excitation. 
• Monitoring the position of rotating diodes in the system of dynamic stimulation and the state of the thyristors in the static excitation system