Turbine Control and Protection System (TCS/TPS) Back

We design and implement control and protection systems of turbines of all types and power from basic design to implementation at the customer, including warranty and post-warranty service.

Options:

  • Field instrumentation and cabling
  • Data acquisition and processing in control system
  • Visualization
  • Communication with other systems of power unit
  • Control of auxiliary technological units, e.g. turbine turning gear synchronization     

Control system technical requirements:

  • system for turbine island control is operating in real time and consists of autonomous redundant microprocessor stations capable of independent operation, independent of the function of other unit control systems.
  • turbine controller (TCS) is usually supplied in redundant design with duplex I / O interface.
  • turbine protection system (TPS) in  redundant design with triplex        interface I / O for the selection two of three by the triple measurements and control of triple actuators.

For TCS we offer our own control system SandRA Z200 or control system compatible with the whole unit control according to customer requirements.

Turbine Control System (TCS)

Main tasks realized by the turbine control system:

  • Reading, filtering and verification of process data
  • Control loops
  • Binary logic control
  • Communication with the visualization system
  • Data exchange with other systems and master control system
  • Technological requirements - special tasks

Control loops:                      

  • Control valve (CV)
  • Control of speed, power and AS pressure


Other modes:

  • Manual operation of CV
  • Island operation (operation in a separate grid)

Special tasks:

  • Speed measurement (requirements for speed and accuracy)
  • 3 speed sensors (e.g. EPRO PR9376)
  • Selection and verification 2 of 3 measurements, evaluation of speed  levels and  forbidden acceleration,   max. speed
  • Processing the entire speed control loop to 20ms
  • Control of HP hydraulics elements (speed requirements)
  • Implementation of position loop for control of control valves
  • Processing time of calculation 5 ms


Turbine Protection System (TPS)

Main tasks realized by the turbine protection system:

  • Reading, filtering and verification of process data
  • Binary logic control - protection algorithms
  • Evaluation of the first incoming event (cause of shutdown)
  • Communication with the visualization system
  • Data exchange with other systems and master control system

Turning gear synchronization (TGS)

Turbine turning gear synchronization is designed with system SandRA Z110.  It se-rves for smooth coupling turning gear to turbine during turbine shutdown.

Used communications: Ethernet, CAN, USB

Monitoring and visualization is realized through the use of tools of Czech and foreign producers.  From Czech producers are used software applications of  Geovap company (Reliance), Moravian Instruments Inc. (ControlWeb). From foreign producers  are used applications of  Wonderware (InTouch) and Siemens (WinCC).                            

The diagnostic system is part of the process stations SandRA Z200.