A Customized STARDOM & FAST/TOOLS Plant Management Solution

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Plant Information

18V34SG Gas Engine of Wärstilä Corporation
18V34SG Gas Engine of Wärstilä Corporation

Combined heat & power (CHP) plant
3 Wärstilä gas engines (3 X 6 MWe, 16.5 MWt)
3 hot water boilers

Executive Summary

The Füredi Power Plant project is a showcase for the use of SCADA and STARDOM in a power sector application, and it posed certain unique operation and control requirements. A FAST/TOOLS SCADA system was seamlessly integrated with a STARDOM automation system, providing the information needed by power plant managers, operators, and maintenance personnel to efficiently monitor the plant's operation and analyze its performance. A history database integrated into FAST/TOOLS collects and stores the measured and calculated parameters.

The system covers approximately 16,000 items, collects data, creates shift/daily/weekly reports, and makes monthly calculations. The collected and calculated data is kept for the lifetime of the plant. Through this project, Zugló-Therm Energy Supply Ltd. has achieved the following:

  • Easy set point definition for all plant power generation operations
    The heat produced by the entire plant and the electrical set points for the engines can be defined in an Excel file every 24 hours, with 15 minute resolution, and this data can be easily exported into the FAST/TOOLS system.
  • Stable electric power generation
    The superior control system can respond flexibly to changing heat demand, focusing on the operational conditions of the gas engines.
  • Power plant optimization
    The control system supports on-line calculation of both plant and gas engine efficiency, enabling adjustments for optimal operation.
  • Control of electric power generation based on net performance
    The control application in STARDOM can automatically calculate the in-house power consumption of the power plant. With this function, the plant can more accurately control the required amount of power to be supplied to the national grid operator.

About the Project

The plant is located at Füredi út in Budapest. The main contractor is Kraftszer Kft., a Hungarian engineering company that has built a number of CHP plants, and the plant will be operated by Zugló-Therm Energiaszolgáltató Kft.

The Füredi power plant consists of three (3) Wärstilä 18V34SG gas engines rated for an electrical output of 18 MWe, three (3) heat exchangers for each engine that supply the hot water for the district heating system, and auxiliary systems for such functions as fuel and air supply. Natural gas is the main fuel for the power plant.

The hot water is distributed by Fötáv Rt., the main district heating utility in Budapest.

Although the emphasis is on the supply of hot water for district heating, the generated electricity is also supplied to approximately 20,000 households on the public power grid. In Hungary this kind of CHP plant is required to have a minimum total efficiency of 65% per month and 75% per year.

The Challenges and the Solutions

1. Easy set point definition for all plant power generation operations

The district heating set points are defined in Excel and sent to the district heating company. As shown below, the Excel data can be imported into FAST/TOOLS with just one mouse click. Plant operators can see the actual daily plant set points on screen.

FAST/TOOLS  screen

FAST/TOOLS screen

This system is used for the electrical set points as well. In this case the plant manager has to define the set points for each of the three gas engines. Please refer to the Excel sheet below.

Excel sheet

Excel sheet

2. Stable electric power generation

The automation system realized in STARDOM can also recalculate the a.m. set points for each gas engine in the event of a malfunction such as a trip of a gas engine. If one of the gas engines shuts down, the other two gas engines will increase power output to compensate.

3. Power plant optimization

STARDOM calculates the efficiency factors for each gas engine and for the entire power plant, and provides data that operators can use to make the plant operate economically and efficiently.

Scope/Special Features of the Control System

Three fully redundant STARDOM field control node (FCN) stations control different parts of the plant, including the electrical system, district heating system (including the gas engines connected to the PLCs), and air system.

Redundancy is realized at different levels in the FCN controllers such as the power supply, CPU, communications between the nodes, and I/Os. One of the most important criteria is the 10 msec time stamping of electrical signals.

The STARDOM controllers manage the plant's measuring and supervisory control activities, governing approximately 550 hardwired I/Os. Via serial communication lines (MODBUS, IEC-103), they collect an additional 500 signals; 1500 signals are connected through redundant OPC interfaces.

Scope/Special Features of the Control System

System Details

Control system: STARDOM FCN and FAST/TOOLS SCADA system
Number of I/O points: 2500
Field instruments: EJA530A x 9, EJA110A x 13, EJA120 x 2, YTA70 x 2, non-Yokogawa products x 116, manometers x 100
Installation: March 15, 2005
Start-up: April 4, 2005
Commissioning: April 20, 2005
Training: May 15-16, 2006

업종

Related Products & Solutions

FAST/TOOLS

FAST(Flexible Advanced System Techniques) 프로젝트로 시작된 FAST/TOOLS는 포괄적인 완전 통합형 SCADA 애플리케이션 제품군입니다. 강력하고 유연한 FAST/TOOLS는 50포인트 단위공정에서 수천 마일이상 확장되는 수백만 포인트 규모의 offshore 생산 및 Pipeline 시스템에 이르는 설비를 제공합니다.

Process Control PLC/RTU

프로세스 공장에서 원격 위치에 이르기까지 당사의 공정제어 PLC 및 원격 터미널 장치 (RTU)는 사용자가 운영의 우수성을 극대화하도록 돕습니다.

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