ARS-TSControl is Institute Mihajlo Pupin’s protective-regulation system of the steam turbine based on Atlas Max-RTL® controllers and VIEW6000 SCADA system. Following the introduction of the new I/O modules Atlas-BPC that monitor turbine speed, these controllers were redirected to control and protect the turbine units, despite the fact they belong to the Atlas family of processing units. In terms of software, monitoring the accuracy of digital modules has been significantly improved. Thus the Atlas unit system gained the subfamily of devices that are able to meet strict requirements for control of such plants.
The system consists of:
- The protective part of the system, designed by using the “2 out of 3” principle in the entire protective circle (from sensors in driver via I/O modules and controllers to the executive protective hydraulic block). Thus all the requirements of SIL3 reliability are fulfilled completely,
- Regulatory and control part of the system that controls turbine regulation valves. Automatic turbine speed and power controllers are implemented there, as well as fresh steam pressure controllers in front of the turbine. Then, limiter functions, which reduce the load of the plant in case of unallowable vacuum values in condenser, sudden fresh steam pressure fall in front of the turbine, and unallowable thermal load of the rotor of the high or medium pressure turbine (thermal-stress calculator). The “2 out of 2” principle was used in designing regulatory and control part of the system.
Complete production of the hydraulic part of the system is offered within the ARS-TSControl system, including:
- replacement or reconstruction of hydraulic control valves,
- reconstruction of the front pedestal block of existing control system for installation of turbine speed measuring system,
- replacement of the turbine hydraulic protection system,
- preparation of complete design documents in all phases of the project,
- installation, supervision and commissioning of the hydraulic system,
- maintenance in the warranty and out of warranty period.
More detailed information about ARS-TSControl system
- ARS-TSControl System Reference List
- some of the successfully completed projects:
– Condensate steam turbine 55GT01, nominal power 16MW, type 0-KD 25 manufacturer „Jugoturbina“ Karlovac, in „Metanolsko-sirćetnom kompleksu“ Kikinda *(Serbia)
Photo gallery of modernized turbine control system in MSK Kikinda
– hydraulic part of system:
• IH converter Voith for control of steam valves (type DSG),
• turbine speed measurement (tooth wheel with inductive probes on front turbine pedestal)
– electronic part of system:
• control-protection system ARS-TSControl,
– Condensing-district heating steam turbine T-110/120-130-4, nominal power 110MW, manufacturer ZAO “UTZ”, Yekaterinburg (Russia), implemented in cogeneration TPP Novi Sad, Novi Sad (Serbia), facility TA2:
– hydraulic part of system:
• linear actuator Exlar GS controlled by Emerson Unidrive SP1400 frequency inverter,
• protection system is based on “2 out of 3” protection electro-hydraulic unit, manufactured by ZAO “UTZ”, Yekaterinburg (Russia),
– electronic part of system:
• control-protection system ARS-TSControl,
• Institute Mihajlo Pupin’s independent electronic over speed protection Atlas-NBZ.
– hydraulic part of system
• control valves are driven by electro-hydraulic converter Vickers EHW-ZAS90, manufactured by Vickers Eaton,
• protection system is based on S90 “2 out of 3” protection electro/hydraulic unit, manufactured by Alstom, Elblag (Poland),
– electronic part of system:
• control-protection system ARS-TSControl,
• independent electronic over speed protection JAQUET FT300, manufactured by JAQUET Technology Group (USA).
The main benefit of system installation is that, the responses of thermal power units A1 and A2 fully meet requirements of the primary frequency regulation, as recommended by ENTSOE P1 – Policy 1: Load-Frequency Control and Performance. Independent test was conducted by Electric Power Company of Serbia on May 4th, 2012.
– Condensate steam turbine Siemens 55/65, nominal power 65MW, manufactured by Siemens-Schuckertwerke, Berlin (Germany) in TPP Kolubara A, Veliki Crljeni (Serbia), facility TA3:
– hydraulic part of the system:
• control valves are driven by current-pressure convertors CPC-II, manufactured by Wodwart,
• protection system is based on S90 “2 out of 3” protection electro/hydraulic unit, manufactured by Alstom, Karlovac (Croatia),
– electronic part of the system:
• control-protection system ARS-TSControl,
• independent electronic over speed protection ATLAS®-NBZ, manufactured by Institute Mihajlo Pupin.
• protection and monitoring of special turbine measurements (vibration, elongations,..) is done using ProvibTech, Huston (USA) equipment.
– Condensate steam turbine 18-K-350, nominal power 350MW, manufactured by ZAMECH – by BBC license, Elblag (Poland)
, in TPP Kostolac B, Drmno (Serbia), units B1 and B2: – hydraulic part of the system:
• control valves are driven by electro-hydraulic converter Vickers EHW-ZAS90, manufactured by Vickers Eaton,
• protection system is based on S90 “2 out of 3” protection electro/hydraulic unit, manufactured by Alstom, Elblag (Poland)
– electronic part of system:
• control-protection system ARS-TSControl,
• independent electronic over speed protection JAQUET FT300, manufactured by JAQUET Technology Group (USA).