HEAT-POWER ENGINEERING
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HEAT-POWER ENGINEERING


Thermal Energy Projects 

Rakurs offers comprehensive control and monitoring and control system development and upgrade services (local computer-aided process control systems, CAPCS) and enterprise-level thermal power plant CAPCS.

CAPCS Development Workflow

Rakurs directly participates in each CAPCS development stage: project specification definition, design, manufacturing, delivery, installation and setup, CAPCS testing and commissioning, the Customer’s personnel training and equipment maintenance.
Rakurs acts as the General Contractor in CAPCS projects. We manage the CAPCS development and deployment.

CAPCS DEVELOPMENT BASICS
The CAPCS and their subsystems are based on hardware, software and backbone software and hardware packages (SHP) from leading vendors such as Valmet, Siemens, Omron, Schneider Electric.
A backbone SHP is a multilevel distributed microprocessor system consisting of compatible hardware and software tools connected with LANs.
A SHP includes microprocessor controllers, workstations, servers, network equipment, and software: basic (proprietary) and user applications. The software implements the control and data processing functionality of the CAPCS meeting the Project Specifications.
The applications are developed with dedicated backbone SHP programming tools. The controllers (the lower CAPCS level) run control and monitoring algorithms (control codes).
The workstations and servers (the higher CAPCS level) perform the algorithms with:
  • databases
  • visuals (mimic diagrams, windows, lists, plots)
  • computation programs
  • report templates.

CAPCS EFFICIENCY
The comprehensive CAPCS we create:
  • perform complex algorithms to control power plant heat and electrical machinery
  • equipment performance optimization
  • component convergence and unification, reducing the required switchboard room floorspace
  • better working environment for the operators.
  • We also guarantee system service and maintenance.

CAPCS FOR COMBINED CYCLE THERMAL PLANTS
Generally the following heat and electrical combined cycle plant equipment is to be automated:
  • gas turbine unit (usually supplied with its own control system)
  • gas booster compressor with its own control system
  • gas facilities
  • HRSG and its auxiliary equipment
  • steam turbine
  • common equipment
  • plant utilities
  • auxiliary power circuit components

http://www.rakurs.com/images/systems/teploenergetics_scheme_s.jpg
CAPCS for Combined Cycle Thermal Plants: Goals and Objectives

The goal is electric and automation of thermal energy generation processes through combining local control systems from various vendors into a unified control system.

A plant-level CAPCS offers:
  • integration of all the CAPCS components into a single system
  • Implementing complex regulating and control algorithms
  • Extended CAPCS monitoring capabilities
  • Equipment and CAPCS hardware diagnostics
  • high reliability and fault tolerance, reducing the risk of accidents
  • timely, accurate process information is provided and logged
  • reducing basic facility downtime for scheduled maintenance and emergency shutdowns through correct operation
  • better working environment for the personnel, preventing human errors
  • high equipment reliability, cost efficiency, safety and durability due to reduced process fluctuations
  • reducing carbon footprint

CAPCS Structure
A CAPS for CPP is a comprehensive, multi-level, distributed control system.
The lower level includes:
  • Instrumentation
  • Actuators
  • Switchgear
  • Electrically operated valves
  • Communication and power cables

The mid level includes:
  • Local monitoring and control systems (MCS). Their number depends on the plant equipment available

The higher level includes:
  • Redundant I/O server (IOS)
  • Historical data server
  • Communication module
  • Workstations (WS)
  • Engineering workstation
  • Universal Time System (UTS)

The higher level devices are connected with a redundant bus.

Rakurs Competitive Edge
  • A CAPCS is an integrated system that provides a comprehensive approach to ensuring efficient, safe, and convenient operation. An automated control system includes diagnostics and self-diagnostics, maintenance And configuration tools. They make the system easy to use, and highly available.
  • The system hardware and software is compliant to standards, regulations and guidelines related to reliability, safety, and environmental friendliness.
  • The SHP design meets electrical safety requirements listed in the Grid Code.
  • The proposed solutions are proven and have been used at dozens of power plants. The system design is tailored to Russian power facilities.
  • Rakurs delivers SHPs for power plant CAPCS. It is a domestic product built with components from the leading global manufacturers.
  • Electrohydraulic Steam Turbine Governing and Protection System (EGPS)