Building on our Westinghouse legacy in digital control and turbine technology, Emerson brings over six decades of global expertise in turbine control systems. Our steam turbine control systems are trusted worldwide, with over 1,500 installations supporting 650+ GW of generating capacity across ~50 countries. Our in-house steam turbine engineering expertise includes both new installations and aftermarket retrofits across major models such as Alstom/ABB, Toshiba, GE, and Siemens/Westinghouse.
Proven Steam Turbine Control Solutions
With complete engineering and design capabilities on mechanical, overspeed, excitation, and governor controls, combined with rotor stress analysis algorithms and Emerson’s advanced procedural integration, a steam turbine can startup and synch automatically in the most expedient, reliable manner with improved ramp rates.
Steam Turbine OEM Experience
Emerson’s experience with Alstom/ABB steam turbines includes:
• Retrofit solutions for any legacy control system (e.g. Procontrol™ P13/14, Advant®, Unitrol®, Microrec, BlueLine ®, P320, P400, ALSPA®, etc.)
• Addition of API 670 5th Edition compliant electronic overspeed protection
• Enhanced and redundant valve positioning control
• Removal of interposing electronics (e.g. valve positioners, valve position transmitters temperature transmitters) for increased reliability
Emerson’s experience with Toshiba steam turbines includes:
• State-of-the-art retrofit solutions for all Toshiba steam turbine generator control systems (TOSMAP D-EHC and D-AVR)
• 24-7 support based in the USA
• Emerson patented “look ahead” Rotor Stress solution for faster startups
• Replacement of interposing valve control equipment with native Ovation Valve Positioner module (simplified automatic valve calibration and enhanced fault tolerance)
• Single plant-wide cybersecurity and NERC CIP solution
Emerson’s experience with GE steam turbines includes:
• Solutions for every GE control system (e.g. MHC, Mark I, Mark II, Mark V, Mark VI, Mark Vie, SPEEDTRONIC™, MDT-20, Alterrex™, EX2000, EX2100, etc.)
• Solutions for all GE steam turbine frames (e.g. D11, A10, G2, G3, etc.)
• Dual or triple-redundant valve positioning control
• Direct interface to all existing field equipment
• Integrated MOD-026 & MOD-027 testing
Emerson’s Siemens/Westinghouse experience includes:
• Solutions for all legacy control system retrofits (Teleperm, T3000, THYRIPOL®, etc.)
• OEM of Westinghouse control systems (AEH, DEH Mods I-III)
• Simplification of difficult to understand/support control subsystems (SIMADYN, FUM, Schlosser, AddFEM, etc.)
• Replacement of complex PROFIBUS interfaces with common and easy-to-understand bus communications
• Improved fault-tolerance with replacement of Application Servers
Emerson’s overall experience includes:
• Proven experience on all other major steam turbine OEMs (e.g. MHI, Hitachi, Doosan Skoda, Dresser Rand, MAN, G.E.C.)
• Two-out-of-three (2oo3) electronic overspeed protection (SIL 3 and API 670 compliant)
• Comprehensive hydraulic equipment offerings (e.g. HPUs, actuators, accumulators, trip manifolds, pressure transmitters)
• Power Load Unbalance (PLU), Load Drop Anticipator, Fast Valving
• Push-button startup and shutdown
• Rotor Stress
• Valve Chest Warming
