Evolution in Automation

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Alison Lawrence
8 years ago
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1 Scope Description Benefits Electrical Sector Paulo Afonso I, II and III Hydroelectric plants Paulo Afonso Complex Modernization First stage conclusion: 06/2008 Project Location: Paulo Afonso/BA - Brazil Controlled I/O Points: About points Scope: Projeto, Hardware, Serviço de Integração Paulo Afonso I, II and III Hydroelectric plants are located in the river São Francisco, in Paulo Afonso Bahia. In total, they operate with 13 generator units and an installed capacity of 1,417,000 kw. Paulo Afonso I, Paulo Afonso II and Paulo Afonso III plants are in the same impoundment. The Plant I (USU) has three generators and starts the operation in The Plant II (USD) has six generators and starts operation in Power Plant III (UST) has four generators and starts operation in The project was divided into stages, where the first would be the USU, its substation, water intake, and ancillary services. Still exist in the complex, the Plants of Paulo IV and Apolônio Sales, which have not been modernized in this contract. Altus has been contracted by Chesf with the following objectives: - Implement an engineering solution for monitoring, control and protection of the generating units, outlet sluice of water, substations and ancillary services, with the main features: - Record of events with an accuracy of 1ms for all digital inputs; - Record of events with precision of 100 ms for all analog inputs; - Network in dual redundant optical ring to increase security and enhance performance in communications between the AUs (autonomous units) and the supervisory system; - Supervision system with redundant servers; - Redundant Database System; - Synchronize AUs satellite (GPS); - Provide information and events to the ONS (Electric System National Operator); - Disturbance and monitoring system; - Redundant Protection relays; The main benefits of the system: Supervision and remote control; Reliability and robustness of the communication system with more accurate diagnoses; Easy maintenance Supervisory system, where the client can make small adjustments and additions of points; Inclusion of a station close to the generators, allowing faster starting and stopping of the generators and helps the maintenance; Gains in production; Synchronization between AUs and monitoring system with GPS, allowing checking the sequence of events of the system. The scope of the solution provided by Altus are the following equipment and services: Specification, design and assembly of electrical panels: o 13 generator AUs; o 4 Auxiliary Service AUs; o 20 Substation AUs; o 3 water intake points; o Local boards and MCCs; o Protection Tables; o Low and medium voltage distribution boards. Design and installation of the GPS network synchronization; Design and installation of optical Ethernet network for communication; Project; o Generator Units control and protection Project; o Unifilar, trifilar, functional and logical Diagrams; o Interconnection and lists of cables Diagrams; o Design of the transformers of the ancillary services o Electrical conduits Project Instrumentation; Assembly; Commissioning and assistance operating; Training

2 Aplication Pictures

3 Supervision and Control To implement the system, two "Hot Stand-By" supervision servers were provided communicating with all AUs via optical ring communication (ethernet). The screens show the data in real time.

4 Architecture Networking In each AU and in the communication hub were used "RuggedCom" industrial switches to construct the double optical ring communication. ALNET II TCP, Modbus TCP, DNP3 or IEC are the protocols of this network. Three optical ports Switch. The third port is used to connect the adjacent rings. Two optical ports Switch. Both optical ports are used to the local ring. Two optical ports Switch. Both optical ports are used to the local ring. Besides, it provides an alternative electrical connection route between both rings of each plant. Below architecture of generator control AUC:

5 Contact Client Contact for more information: Carlos Roberto Lopes dos Santos Phone: Altus Sistemas de Informática S.A. Av. Theodomiro Porto da Fonseca, 3101 Lote 01 - Bairro Duque de Caxias CEP São Leopoldo RS Fone: Fax:

Industrial Ethernet How to Keep Your Network Up and Running A Beginner s Guide to Redundancy Standards

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