The Challenge
Energia required a replacement of Huntstown’s Distributed Control System (DCS), originally installed with the plant in 2002 with a new state-of-the-art Siemens SPPA-T3000, specifically designed for controlling thermal power stations.
Given NeoDyne’s extensive CCGT and control systems experience, Energia engaged NeoDyne to provide engineering and commissioning support.
We provided all engineering works for integration of the new DCS (including Governor and Excitation systems) into Huntstown’s existing plant systems. We also carried out all testing/commissioning on behalf of Energia to demonstrate grid compliance.
Our Approach
Huntstown is a combined cycle gas turbine (CCGT) plant, consisting of a Siemens SGT5-4000F (V94.3A) combustion turbine, a Siemens HE-(50Hz) steam turbine and a Heat Recovery Steam Generator with a total combined cycle output power of 342MW.
The Siemens T3000 upgrade included new Protection systems, Governors and AVRs for the Gas Turbine and Steam Turbine.
We modified the existing synchroniser and electrical protection systems to work with the new T3000 control system, including reuse and recommissioning of the Gas Turbine Siemens 7VE512 synchroniser and the Steam Turbine Siemens 7VE512 synchroniser.
As the VT wiring was not modified, we focused the recommissioning activities on the interfaces between the synchronisers and the governors, and the Excitation systems on the Gas Turbine and Steam Turbine.
We also organised and carried out all commissioning activities in conjunction with Eirgrid, including:
- Job Management/Scheduling
- Finished Goods Recording
- Product Labelling
- Multi-lingual
- PLC Settings
- Logsheets
- Quality
All tests were witnessed by EirGrid, and Huntstown Power Station successfully achieved operational certification for the new control system.
About Energia
Energia is the largest independent energy supply company in Ireland, supplying commercial energy (gas and electricity) to almost 60,000 business customers and supplying the domestic market since 2014.
Huntstown Power Station in Dublin, operated by Energia, is a combined cycle gas turbine plant and among the most efficient and technically advanced plants in the Irish electricity system, providing up to 20% of the total electricity fed into the National Grid.
Customer Requirements
- Implementation of a new Siemens SPPA-T3000 DCS
- Integration of the new DCS into existing plant systems
- Modification and recommissioning of existing synchroniser and electrical protection systems
- Management and execution of Eirgrid commissioning activities
Challenges
- Modifying the legacy auto-synchroniser configuration
- Modifying the existing electrical protection systems to work with the new T3000 control system
Outcome
- Successful commissioning of the new state-of-the-art Siemens SPPA-T3000
- Integration of the new DCS into existing plant systems
- Re-use of existing synchroniser and electrical protection systems to work with the new T3000 control system
- Successful completion of Grid Code Compliance tests
- Operational Certification for the new control system
Other Case Studies
See other PowerGen & Utilities projects below to see our solutions in action
AquaCritox Demonstrator Unit
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Pfizer Grange Castle
Replacement/Upgrade of Generator Control and Protection Systems to support a Complex Site Islanding System.
