Projeto Básico do Sistema de Transmissão Associado às Usinas do Rio Madeira e a Aplicação dos Procedimentos de Rede do ONS

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Projeto Básico do Sistema de Transmissão Associado às Usinas do Rio Madeira e a Aplicação dos Procedimentos de Rede do ONS

Dalton O. C. Brasil Delfim M. Zaroni Mauro P. Muniz

ONS ONS ONS

Brasil Brasil Brasil

Paulo Gomes ONS Brasil

Dalton de Oliveira Camponês do Brasil

Engenheiro Eletricista pela Escola Politécnica da USP em 1972 e Mestre em Ciências pela UFPE em 1996.

Trabalha desde 1998 no ONS – Operador Nacional do Sistema Elétrico e atualmente é Assessor Técnico da DAT – Diretoria de Administração da Transmissão.

Anteriormente ao ONS, atuou na iniciativa privada como consultor por um período de quase trinta anos, tendo foco na área de estudos de planejamento e engenharia de sistemas elétricos de potência. Participou na implantação de vários projetos de grande porte, como sistema de transmissão de Itaipu em 765 kV e 600 kV CC, na implantação das interligações Norte-Nordeste e Norte-Sul, bem como nos sistemas de 500 kV das regiões Norte, Nordeste e Sul.

Exerce a coordenação do Comitê de Estudos C4 – Desempenho de Sistemas Elétricos do Cigré Brasil desde 2010.

3 Itá Sta. Elena Boa Vista Manaus Samuel Ariquemes Porto Velho Coaracy Nunes Macapá Balbina Jurupari S.Maria Belo Monte Tucuruí São Luiz

Marabá Colinas MiracemaSobradinho Irecê Sinop Ji-Paraná P.Bueno Vilhena Jauru Sorriso Gurupi S.da Mesa Manso Brasília Rondonópolis Corumbá C.Grande Gov.Mang T.Marias B.J.Lapa Funil Vitória São Paulo Ivaiporã Itaipu Livramento Candiota Uruguaiana Porto Alegre Sto.Angelo Curitiba Blumenau Garabi C.Novos Fortaleza Natal Açu Salvador Maceió Xingo Aracaju Campos Rio de Janeiro Belo Horizonte Recife P.Dutra S.J.Piaui Imperatriz Teresina Rianópolis Emborcação Ribeirãozinho Santo Antônio Jirau Cuiabá Sistema Receptor Acre Rondônia Santo Antônio Jirau Sistema Receptor SE

CARACTERIZAÇÃO DO SISTEMA DE TRANSMISSÃO

23 75 km 23 75 km Itá Sta. Elena Boa Vista Manaus Samuel Ariquemes Porto Velho Coaracy Nunes Macapá Balbina Jurupari S.Maria Belo Monte Tucuruí São Luiz

Marabá Colinas MiracemaSobradinho Irecê Sinop Ji-Paraná P.Bueno Vilhena Jauru Sorriso Gurupi S.da Mesa Manso Brasília Rondonópolis Corumbá C.Grande Gov.Mang T.Marias B.J.Lapa Funil Vitória São Paulo Ivaiporã Itaipu Livramento Candiota Uruguaiana Porto Alegre Sto.Angelo Curitiba Blumenau Garabi C.Novos Fortaleza Natal Açu Salvador Maceió Xingo Aracaju Campos Rio de Janeiro Belo Horizonte Recife P.Dutra S.J.Piaui Imperatriz Teresina Rianópolis Emborcação Ribeirãozinho Santo Antônio Jirau Cuiabá Sistema Receptor Acre Rondônia Santo Antônio Jirau Sistema Receptor SE Sistema Receptor SE

CARACTERIZAÇÃO DO SISTEMA DE TRANSMISSÃO

23 75 km 23 75 km

S. Antônio Jirau Filtro AC Filtro AC 4x 95 4M CM -T C -1 05 km 4x2312MCM – 2375km 4x2312MCM – 2375km +600kV CC -600kV CC Pólo 1 1575MW Pólo 2 1575MW 1575 MVA 44x75MW 3x1250MVA 44x71,6MW SE Vilhena

P. Velho Ariq.J. ParanáP.Bueno Coxipo

Ribeirãozinho Itumbiara Rio Verde 2x954MCM 12 km Back-to-back MT Samuel Trindade Araraquara Araraquara (Furnas) (CTEEP) 1575 MVA Filtro AC Filtro AC 4x2312MCM – 2375km 4x2312MCM – 2375km +600kV CC -600kV CC Pólo 1 1575MW Pólo 2 1575MW 1575 MVA 1575 MVA -25/50 Mvar CE -25/50 Mvar CE

Rio BrancoAbuna Univers. 400 MVA 400 MVA Cuiabá Jauru 364 km _242km 1x750MVA Atibaia Pólo 1 1475MW Pólo 2 1475MW Pólo 1 1475MW Pólo 2 1475MW -120/250 Mvar 3x(-70/100) Mvar SI 150km 118km 160km 354 41km 165km 305km 160km 30km 1x136 Mvar 1x750MVA LOTE 3 LOTE 3 LOT E 2 LOTE 4 LOTE 5 LOTE 2 LO TE 6 LOTE 7 LO TE 1

SE Porto Velho ETE - ABB _{SE Araraquara}

IEMADEIRA - ALSTOM

PVTE - ABB

Nominal Rating /Overload / Reliability

Nominal Rating :

Bipoles Overload at Maximum Temperature:

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9 50% for 5 seconds

Overload at Low Ambient Temperature:

9To be informed

Reliability (Target per year):

9Total Availability: 99%

9Pole Forced Outage: 2.5/year

Operating Modes

A.Bipolar/Monopolar Operation:

9Bipolar Operation

9Monopolar Ground Return Operation

9Monopolar Metallic Return Operation

B.Operating Modes in Bipolar or Monopolar Operation

9Nominal Voltage Operation

9Reduced Voltage (70%) Operation

9High MVAr Operation

9Paralleled Transmission Lines Operation

9Paralleled Converters Operation

9 NBS MRTB NBS GRTS NBS MRTB NBS GRTS P₁ P₂ P₃ P₄ L₁ L₂ L₃ L₄ NBS MRTB NBS GRTS NBS MRTB NBS GRTS P₁ P₂ P₃ P₄ L₁ L₂ L₃ L₄

Operating Modes

Reactive Power and AC Filters

Inverter

Rectifier

Reactive Power Requirements:

9Power Factor at the Connection: 1.0 0.93 (*)

9Balance with 1 bank out of Service

9Steady State Voltage Change: 5.0 % 5.0%

(*) – Power Factor Generating Units up to 0.93 capacitive

AC Filters: Individual harmonic voltage distortion limits to be attended

with 1 filter bank out of service.

13.8 kV ≤ Voltage < 69 kV

Voltage ≥ 69 kV

Odd Even Odd Even

Order Limit Order Limit Order Limit Order Limit

3rd  to 25th 1.5%

All 0.6%

3rd to 25th 0.6%

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Main Tasks:

9Is a High Level Control protecting and coordinating the

generation-transmission system.

9Re-distribute the active power between Bipole 1 and Bipole 2 upon loss or

limitation of HVDC transmission capacity.

9Re-distributed the active power from the BtB to Poles in operation upon loss

or limitation of the Back to Back transmission capacity.

9Avoid self excitation of the generators in Jirau and Santo Antonio by limiting

the maximum amount of filters connected to the 500kV AC-network.

9Reduce possible overvoltage on the 500 kV AC-networks by disconnecting

AC-filters.

9Balance and control the reactive power exchange between the HVDC

converter station and the corresponding AC-network.

9Restoration of active power balance at DC/AC-related limitations (Porto

Velho 500 kV AC and Araraquara 500 kV AC network).

Dynamic Performance

Requirements:

9Current Order Response: 100 ms

9Power Order Step Response: 150 ms

9AC Faults Response: 200 ms

9DC Line Response: 100 ms

9Do not occur Commutation Failures in the following conditions:

• Faults at Rectifier;

• During switching of transmission lines or equipment belonging to the

Converter Stations;

CONCLUSION - MAIN DIFFICULTIES

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A. Deadlines: Very complex project – 3 months for the submission of the basic design

projects and a period of 4 months for the review and approval of their conformity with the Technical Annex were not enough.

B. Technical Specification vs. Functional Specification : equipment acquisition was

based on the Technical Annex, which does not detail adequately the technical characteristics of equipment to be supplied by manufacturers. It is believed that this was one of the aspects that required most of the discussions on the

interpretation of technical requirements during the basic design.

C. Division into Lots: There is no doubt that the division of the transmission

installations into lots for the auction process is a pillar to increase competitiveness and thereby achieve low tariffs. However it imposes some difficulties:

9 The sharing of the converter reactive compensation and the AC filters;

9 The compatibility of the insulation levels of the several installation connected to the same AC switchyard;

9 The operational interaction required by control and protection schemes

D. The absence of coordination in charge of conducting the necessary

compatibility of requirements, deadlines and concerns from agents who share the facilities.

Thank you for your attention!

Dalton O. C. Brasil

docb@ons.org.br

Division into Lots

Possible Main Alternatives

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A.Just one Lot: Technically the best

B.Same bipole as a Lot

Pros and Cons - Alternatives B and C

B. Same bipole as a Lot

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Clear owners identification of each bipole

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More guarantee of time schedule of each bipole

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Lower possibility to optimize filters and reactive compensation

design

C. All the convertors at the same station as a Lot

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Lower necessity of sharing of installations

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Simpler coordination at the same converter station, avoiding

complex coordination between filter design, insulation

coordination and control philosophies

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Enabling duplication and scale earning