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Online Monitoring of Power Control and Engineering Parameters in the NEMO Phase-2 Tower

This international workshop discusses the power control and engineering parameter systems of the NEMO Phase-2 tower, including electrical parameter display, monitoring of voltage and current, power feeding switches control, and protection against overcurrent and overvoltage.

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Online Monitoring of Power Control and Engineering Parameters in the NEMO Phase-2 Tower

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  1. International Workshop on a Very Large Volume Neutrino Telescope for the Mediterranean Sea On line monitoring of the power control and engineering parameters systems of the NEMO Phase-2 tower Angelo Orlando INFN-LNS 22-24 April 2008, Toulon Palais Neptune Conference Centre

  2. System Overview • Power control system • Electrical parameter display of the 10KVdc – 400Vdc Alcatel MVC • Floors and base tower voltage and current monitoring • Power feeding switches control and check • Overcurrent and overvoltage protection • Tower engineering parameters • Depth of each floor (pressure sensors) • Roll, pitch and heading angle (accelerometer and magnetometer sensors fusion) • Accelerometers and magnetometers sensors raw data

  3. Outline • Subsystems: • Powercontrolsystem • Datatransmission • Control and power supply • Tower engineering parameters • Roll, pitch and heading • Tri-axial accelerometers raw data • Floors depth

  4. RS485 Copper Ethernet-Copper Ethernet-Fiber Ethernet Copper Data transmissionarchitecture • System Overview • On Shore • - Ethernet – Copper from PC • - Copper-Fiber media converter • Off Shore • - Copper-Fiber media converter • - E2S Eth to RS485 Half Duplex

  5. Data transmissionperformance • Test procedure • Oscilloscope probe at tower base • Master PC data request • Answer received from slave board Slave Answer #0 - - - - - - - #16 Master request 1200m Twistedpair (1 ms/div)

  6. Outline • Subsystems: • Powercontrolsystem • Datatransmission • Control and power supply • Tower engineering parameters • Roll, pitch and heading • Tri-axial accelerometers raw data • Floors depth

  7. Architecture overview • 10KVdc 1A PFE • Provided with: • all necessary safety requirements • a dummy load for operational testing NEMO Tower MVC - Alcatel DC/DC 10KVdc to 400Vdc Power Feed Equipment PFE 10KVdc NEMO Tower Base Cable • Power feeding and control system • Tower base electronic boards • Power supply and data bus along the backbone • Floor Power Control System (FPCS) • Floor Power Module System (FPMS)

  8. Architecture overview • AOLC4 • The OALC4 cable can be used at any • sea depth between 0 and 7000 meters (1.0 ohm/km version) NEMO Tower MVC - Alcatel DC/DC 10KVdc to 400Vdc Power Feed Equipment PFE 10KVdc NEMO Tower Base Cable • Power feeding and control system • Tower base electronic boards • Power supply and data bus along the backbone • Floor Power Control System (FPCS) • Floor Power Module System (FPMS)

  9. Architecture overview • MVC – Alcatel • Input: up to 10 kV DC • Output: 400 VDC/25 A • Estimated efficiency: > 90% at full load NEMO Tower MVC - Alcatel DC/DC 10KVdc to 400Vdc Power Feed Equipment PFE 10KVdc NEMO Tower Base Cable • Power feeding and control system • Tower base electronic boards • Power supply and data bus along the backbone • Floor Power Control System (FPCS) • Floor Power Module System (FPMS)

  10. Architecture overview NEMO Tower • NEMO TOWER MVC - Alcatel DC/DC 10KVdc to 400Vdc Power Feed Equipment PFE 10KVdc NEMO Tower Base Cable • Power feeding and control system • Tower base electronic boards • Power supply and data bus along the backbone • Floor Power Control System (FPCS) • Floor Power Module System (FPMS)

  11. Main Control System FPCS SPI & 5.5 VDC 12V Power Module FPMS 5.5V 4.2V Redundant Control system FPCS • Floor wiring • TOWER BASE • ARCHITECTURE SPI & 5.5VDC Twisted Pair B-RS485 Normal Twisted Pair A-RS485 Redundancy Twisted Pair C-400VDC OddFloor Twisted Pair D-400VDC EvenFloor Tower Base PCS + FPMS

  12. Base tower power control system Floor 16 Voltage sensors Temp Fiber From Frame Microcontroller A/D RS485 … IRQ Ethernet2SPI Media Converter Twisted Pair Cmd CK Floor 1 Power supply for Control system DC/DC 400V-5V RS485 400Vdc From DC/DC Current 400Vdc

  13. Base tower power control system • Power supply for power control system Floor 16 Voltage sensors Temp Fiber From Frame Microcontroller A/D RS485 … IRQ Ethernet2SPI Media Converter Twisted Pair Cmd CK Floor 1 Power supply for Control system DC/DC 400V-5V RS485 400Vdc From DC/DC Current 400Vdc

  14. Base tower power control system • Voltage and current sensors Floor 16 Voltage sensors Temp Fiber From Frame Microcontroller A/D RS485 … IRQ Ethernet2SPI Media Converter Twisted Pair Cmd CK Floor 1 Power supply for Control system DC/DC 400V-5V RS485 400Vdc From DC/DC Current 400Vdc

  15. Base tower power control system • Data transmission: Fiber/Ethernet TO Copper/RS485 Floor 16 Voltage sensors Temp Fiber From Frame Microcontroller A/D RS485 … IRQ Ethernet2SPI Media Converter Twisted Pair Cmd CK Floor 1 Power supply for Control system DC/DC 400V-5V RS485 400Vdc From DC/DC Current 400Vdc

  16. Main Control system FPCS SPI & 5.5 VDC 12V Power Module FPMS 5.5V 4.2V Redundant Control system FPCS • Floor wiring • FLOOR POWER • SUPPLY SPI & 5.5VDC Twisted Pair B-RS485 Normal Twisted Pair A-RS485 Redundancy Twisted Pair C-400VDC OddFloor Twisted Pair D-400VDC EvenFloor Tower Base PCS + FPMS

  17. I I I V V V V • FPMS - Floor Power Module System 100mm DC-DC Converter +12V ON-OFF RTN +400V +5.5V +5.5V DC-DC Converter Input Circuit protection Output filter Input filter +4.2V Dissipative Regulator ON-OFF Redundant switch ON-OFF Main switch 160mm ON-OFF +5.5V Control Circuit Connector GND DC-DC Status Maincontrol Redundantcontrol I/O I/O SPI SPI • Main specifications • Soft Start and over voltage protection • Input output filter noise reduction • Output current and voltage sensors • Optocoupled insulated high voltage sensor • n°2 switches for power on and off, main and redundant

  18. I I I V V V V • FPMS - Floor Power Module System 100mm DC-DC Converter +12V ON-OFF RTN +400V +5.5V +5.5V DC-DC Converter Input Circuit protection Output filter Input filter +4.2V Dissipative Regulator ON-OFF Redundant switch ON-OFF Main switch 160mm ON-OFF +5.5V Control Circuit Connector GND DC-DC Status Maincontrol Redundantcontrol I/O I/O SPI SPI • Main specifications • Soft Start and over voltage protection • Input output filter noise reduction • Output current and voltage sensors • Optocoupled insulated high voltage sensor • n°2 switches for power on and off, main and redundant

  19. I I I V V V V • FPMS - Floor Power Module System 100mm DC-DC Converter +12V ON-OFF RTN +400V +5.5V +5.5V DC-DC Converter Input Circuit protection Output filter Input filter +4.2V Dissipative Regulator ON-OFF Redundant switch ON-OFF Main switch 160mm ON-OFF +5.5V Control Circuit Connector GND DC-DC Status Maincontrol Redundantcontrol I/O I/O SPI SPI • Main specifications • Soft Start and over voltage protection • Input output filter noise reduction • Output current and voltage sensors • Optocoupled insulated high voltage sensor • n°2 switches for power on and off, main and redundant

  20. I I I V V V V • FPMS - Floor Power Module System 100mm DC-DC Converter +12V ON-OFF RTN +400V +5.5V +5.5V DC-DC Converter Input Circuit protection Output filter Input filter +4.2V Dissipative Regulator ON-OFF Redundant switch ON-OFF Main switch 160mm ON-OFF +5.5V Control Circuit Connector GND DC-DC Status Maincontrol Redundantcontrol I/O I/O SPI SPI • Main specifications • Soft Start and over voltage protection • Input output filter noise reduction • Output current and voltage sensors • Optocoupled insulated high voltage sensor • n°2 switches for power on and off, main and redundant

  21. I I I V V V V • FPMS - Floor Power Module System 100mm DC-DC Converter +12V ON-OFF RTN +400V +5.5V +5.5V DC-DC Converter Input Circuit protection Output filter Input filter +4.2V Dissipative Regulator ON-OFF Redundant switch ON-OFF Main switch 160mm ON-OFF +5.5V Control Circuit Connector GND DC-DC Status Maincontrol Redundantcontrol I/O I/O SPI SPI • Main specifications • Soft Start and over voltage protection • Input output filter noise reduction • Output current and voltage sensors • Optocoupled insulated high voltage sensor • n°2 switches for power on and off, main and redundant

  22. I I I V V V V • FPMS - Floor Power Module System 100mm DC-DC Converter +12V ON-OFF RTN +400V +5.5V +5.5V DC-DC Converter Input Circuit protection Output filter Input filter +4.2V Dissipative Regulator ON-OFF Redundant switch ON-OFF Main switch 160mm ON-OFF +5.5V Control Circuit Connector GND DC-DC Status Maincontrol Redundantcontrol I/O I/O SPI SPI • Main specifications • Soft Start and over voltage protection • Input output filter noise reduction • Output current and voltage sensors • Optocoupled insulated high voltage sensor • n°2 switches for power on and off, main and redundant

  23. Main Control system FPCS SPI & 5.5 VDC 12V Power Module FPMS 5.5V 4.2V Redundant Control system FPCS • Floor wiring • POWER CONTROL SYSTEM BOARD SPI & 5.5VDC Twisted Pair B-RS485 Normal Twisted Pair A-RS485 Redundancy Twisted Pair C-400VDC OddFloor Twisted Pair D-400VDC EvenFloor Tower Base PCS + FPMS

  24. PCS - Power Control System 130mm 55mm Backbone Ax Tx • Main features: • Power consumption: 150 mA @ 5.5Vdc • RS485 optocoupled interface • FPMS SPI interface • Over current and voltage protection • n°1 tri-axial magnetometer • n°3 MEMS accelerometers • n°2 Temp. and pressure interfaces μC PIC18F4523 Optocoupled RS485Driver Rx Ay En Az Temperature Connector (DS18S20) Pres Micromag3 SPI Bus SPI for FPMS - Connector

  25. PCS - Power Control System 130mm 55mm Backbone Ax Tx • Main features: • Power consumption: 150 mA @ 5.5Vdc • RS485 optocoupled interface • FPMS SPI interface • Over current and voltage protection • n°1 tri-axial magnetometer • n°3 MEMS accelerometers • n°2 Temp. and pressure interfaces μC PIC18F4523 Optocoupled RS485Driver Rx Ay En Az Temperature Connector (DS18S20) Pres Micromag3 SPI Bus SPI for FPMS - Connector

  26. PCS - Power Control System 130mm 55mm Backbone Ax Tx • Main features: • Power consumption: 150 mA @ 5.5Vdc • RS485 optocoupled interface • FPMS SPI interface • Over current and voltage protection • n°1 tri-axial magnetometer • n°3 MEMS accelerometers • n°2 Temp. and pressure interfaces μC PIC18F4523 Optocoupled RS485Driver Rx Ay En Az Temperature Connector (DS18S20) Pres Micromag3 SPI Bus SPI for FPMS - Connector

  27. PCS - Power Control System 130mm 55mm Backbone Ax Tx • Main features: • Power consumption: 150 mA @ 5.5Vdc • RS485 optocoupled interface • FPMS SPI interface • Over current and voltage protection • n°1 tri-axial magnetometer • n°3 MEMS accelerometers • n°2 Temp. and pressure interfaces μC PIC18F4523 Optocoupled RS485Driver Rx Ay En Az Temperature Connector (DS18S20) Pres Micromag3 SPI Bus SPI for FPMS - Connector

  28. PCS - Power Control System 130mm 55mm Backbone Ax Tx • Main features: • Power consumption: 150 mA @ 5.5Vdc • RS485 optocoupled interface • FPMS SPI interface • Over current and voltage protection • n°1 tri-axial magnetometer • n°3 MEMS accelerometers • n°2 Temp. and pressure interfaces μC PIC18F4523 Optocoupled RS485Driver Rx Ay En Az Temperature Connector (DS18S20) Pres Micromag3 SPI Bus SPI for FPMS - Connector

  29. PCS - Power Control System 130mm 55mm Backbone Ax Tx • Main features: • Power consumption: 150 mA @ 5.5Vdc • RS485 optocoupled interface • FPMS SPI interface • Over current and voltage protection • n°1 tri-axial magnetometer • n°3 MEMS accelerometers • n°2 Temp. and pressure interfaces μC PIC18F4523 Optocoupled RS485Driver Rx Ay En Az Temperature Connector (DS18S20) Pres Micromag3 SPI Bus SPI for FPMS - Connector

  30. PCS - Power Control System 130mm 55mm Backbone Ax Tx • Main features: • Power consumption: 150 mA @ 5.5Vdc • RS485 optocoupled interface • FPMS SPI interface • Over current and voltage protection • n°1 tri-axial magnetometer • n°3 MEMS accelerometers • n°2 Temp. and pressure interfaces μC PIC18F4523 Optocoupled RS485Driver Rx Ay En Az Temperature Connector (DS18S20) Pres Micromag3 SPI Bus SPI for FPMS - Connector

  31. PCS - Power Control System 130mm 55mm Backbone Backbone Ax Tx • Main features: • Power consumption: 150 mA @ 5.5Vdc • RS485 optocoupled interface • FPMS SPI interface • Over current and voltage protection • n°1 tri-axial magnetometer • n°3 MEMS accelerometers • n°2 Temp. and pressure interfaces μC PIC18F4523 Optocoupled RS485Driver Rx Ay En Az Temperature Connector (DS18S20) Pres Micromag3 SPI Bus SPI for FPMS - Connector

  32. Outline • Subsystems: • Powercontrolsystem • Datatransmission • Control and power supply • Tower engineering parameters • Roll, pitch and heading • Tri-axial accelerometers raw data • Floors depth

  33. Attitude System – Sensor Fusion Algorithm • Implemented algorithm • Roll and pitch angles can be calculated in almost static condition through accelerometers measures. • Roll and pitch angles are used to project the tri-axial magnetic measurements on the level plane surface. • Applying the rotational equations the heading angle is computed. x y z Yaw Roll Pitch

  34. Test: Roll – Pitch comparison and validation • Test results: PCS Vs MTi • Dynamic condition: • Error Roll ≤ 2° • Error Pitch ≤ 1.5° • Static condition: • Error Roll ≤ 0.2° • Error Pitch ≤ 0.1° MTi by XSens PCS by INFN-LNS

  35. Performed tests • Data transmission • Fiber copper converter (100Km fiber length) → OK • Bus RS485 tested (1200m backbonelength) → OK • Control system and power supply • Power Control System Board → OK • Floor Power Module System Board → OK • PCS - FPMS Integration → OK • Current and voltage measures validation → OK • Over current monitor → OK • Overcurrent protection → OK • Full system under pressure working @350Atm → OK • Tower engineering parameters • Roll, pitch and heading validation → OK • Pressure sensor validation @350Atm → OK • MEMS accelerometers under pressure working@350Atm → OK

  36. CONCLUSIONS ALL THE ELEMENTS OF THE NEMO PHASE 2 POWER AND POWER CONTROL SYSTEMS SUCCESFULLY TESTED THE SYSTEM IS READY FOR THE INTEGRATION

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