Krug has developed a design for an electrohydraulic control system for a steam turbine at the CHPP based on the KRUK-2000 CAS

2021: Development of electrohydraulic control system of the CHP steam turbine

On March 29, 2021, NPF Krug announced the development of a project for an electrohydraulic steam turbine control system for the Bashkir power plant based on the KRUK-2000 CAS.

The management of the company was tasked to ensure reliable and high-quality control of steam turbines of the CHPP, to regulate the main parameters in all permissible technological modes of operation, as well as in emergency situations.

The main feature of the system, bringing it to a higher quality level, is the implementation of a comprehensive solution for automation of the turbine unit (including EGSR) on a single hardware and software. This allows the operational and maintenance personnel to see a complete holistic picture of the process and to perform control and adjustment from one system, from one AWS.

The turbine servomotors are controlled by the DevLink-A10.AIO-3UI/3UI microprocessor positioners, which are connected to the master frequency control unit.

The implementation of such an integrated system on the basis of the Russian software and technical complex KRUG-2000 (CAS KRUG-2000) provides:

• compliance with all requirements of regulatory documents in the field of energy
• significant expansion of INDUSTRIAL CONTROL SYSTEM turbine functionality
• improving reliability of process equipment and automation equipment
• reduced labor costs for maintenance and repair.

The cost-effectiveness of implementing EGSR is to reduce the cost of producing electric and thermal energy.

An example of the implementation of this technical solution is the PT-65/75-130 turbine EGSR Art. 5 Ufa CHPP-2. The existing APCS of the turbine and the newly developed EGSR system operate on the basis of CAS KRUK-2000.

The standard EGSR solution is a joint development of KRUK and the Karaganda Turbomechanical Plant (KTMZ), which was carried out under the auspices of the Bashkir Generating Company. As part of the project, KRUK developed design documentation for the EGSR automation cabinet, and performed chief installation, engineering and commissioning work.