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7 dani heredero v2_g_06_dani h

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Empower H2020 Sumposium: "Local energy markets; dream or facta"

Publicada em: Engenharia
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7 dani heredero v2_g_06_dani h

  1. 1. Enabling local market technologies: V2G, B2G and IDPR Daniel Heredero Peris
  2. 2. 2 Agenda • Introduction: Electrification of road transport framework • The 3-F for V2X (Factors- Functions- Features) • Business opportunities for EVSE • Products to achieve V2G or B2G o V2G Power unit o IDPR Power unit
  3. 3. Environmental issues Energies for transportation 3 EV Governments Industries Grid owner/operators Customers Oil demands Gas emissions Increasingconcerns EV EV EV EV EV EV EV EV EV penetration Introduction: Electrification of road transport framework [Source:https://www.iea.org/publications/freepublications/publication/Global_EV_ Outlook_2016.pdf] PEV HEV PHEV Wh W Other uses
  4. 4. 4 Emerging technologies & new challenges V2H V2V V2G Power Electronics is key for performing electric energy conversion SLB V2M Storage systems Power Electronics New business models Ancillaries Gridable EVs (V2X) • Driver range anxiety • Battery degradation • Ownership • Revenues • Regulations • New actors: prosumer Introduction: Electrification of road transport framework V2V
  5. 5. 5 Vehicletohome(V2H)ortomicrogrid(V2M) Individual daily load profiles (high uncertainty) Seasonality (V2M case) Battery type and characteristics SoC Driver habits (arrival/departure, patterns) Electricity cost Factors Functions Home back-up system Controllable load Sell excess of energy Charge at low (or null) cost Home energy quality Features Easy to install High compacity Low power (< 10 kVA) The 3-F for V2X (Factors- Functions- Features)
  6. 6. 6 OCPP protocol Power flow of the power grid Regulation of the grid operations Aggregators? / EV per aggregator? Battery type and characteristics SoC Driver habits (only for V2G) Electricity cost Factors Functions Ancillary services (V/f regulation) Interoperability (renewable coordination, controllable load) Reactive power dispatching Peak shaving, valley filling, active filtering Grid-support (spinning reserve) Features Operation in large scale (aggregation) Complex control More infrastructure OCPP protocol Vehicletogrid(V2G)orbatterytogrid(B2G) The 3-F for V2X (Factors- Functions- Features)
  7. 7. Power flow of the power grid Community daily load profiles (medium uncertainty) Battery type and characteristics SoC Driver habits (reduced effect) Involvement of two or more EVs (allotted to a community) Electricity cost 7 Factors Functions Trading loss Energy routing and sparse dispatching Better TOU Special functions (On-road assistance) Features Complex coordination and managing (FCFS, smart approaches,…) More infrastructure (similar to V2G case) High power involvement Aggregator (parking lot) Aggregator (parking lot) OCPP protocol OCPP protocol Vehicletovehicle(V2V) The 3-F for V2X (Factors- Functions- Features)
  8. 8. 8 LowscaleMidandlargepower-scale Non-gridowner Grid owner Non-gridoperatorGridoperator For non-market participants (utilities) For prosumers + Non-market participants (aggregator figure) Services for domestic prosumers  Scalable, owned and operated by diverse agents for different applications For market participants (charging stations, energy intensive installations, generators) SELF-CONSUMPTION PRIVATE BUSINESSES COMMUNITY MARKETS DSO’S ANCILLARIES Opportunity EVSE Primary dedicated EVSE Commercial EVSE Managing EVSE Business opportunities for EV Supply Elements (EVSE)
  9. 9. 9 Business opportunities for EV Supply Elements (EVSE)
  10. 10. Requeriments for enabling V2G 10 DCACLV utility DATA AC DC DATA BMS ECU Battery packPower Electronics OFF-BOARD ON-BOARD Control board Products to achieve V2G or B2G
  11. 11. 11 DCACLV utility DATA AC DC DATA BMS Battery packPower Electronics Control board Requeriments for enabling B2G Products to achieve V2G or B2G
  12. 12. Pave the way for successful V2G/B2G technology deployment 12  Providing a complete technical solution for V2G operation of EVSE  Reducing cost of the equipment thanks to an specific design for V2G purpose  Decreasing the delivery time due to integration of functionalities in a single device V2G Power Unit EV 150..500 Vdc 36 A CHAdeMO COMBO V2G Power Unit Public grid 400V 3F+N+PE 50/60 Hz 16 A V2G Power Unit LFtransformer (optional) V2G Power Unit V2G Power Unit 12 V supply Modbus Serial/CAN OCPP protocol V2G Power Unit 3G modem Embedded PC HMI V2G Power Unit LFtransformer (optional) Modbus Serial/CAN OCPP protocol Public gridEV 150..500 Vdc 36 A CHAdeMO COMBO 400V 3F+N+PE 50/60 Hz 16 A HMI Cabinet V2G Power Unit 12 V supply Cooling 3G modem Embedded PC Concept Products to achieve V2G or B2G: V2G Power unit
  13. 13. What inside? 13  Full PCB design for easy integration  AC to DC bidirectional power converter  AC and DC output filter (inductors/capacitors)  AC and DC switchgear (precharge, main relays)  AC and DC Fuse protection  Required I/O and communication for CHAdeMO interface  Isolation detector for test implementation  RS-485 physical layer for Modbus protocol Products to achieve V2G or B2G: V2G Power unit
  14. 14. Technical features 14 Rated power 10 kVA AC interface 3F + N + PE , TT or TN grounding system AC rated voltage 400 V AC rated frequency 50/60 Hz AC rated current 16 A DC rated current 36 A DC voltage range 50..600 V (according to SOA) Estimated efficiency 500 V, 20 A (dis)charge, 25 ºC 94 % Maximum ambient temperature 50 ºC Cooling Fan Sound emission 60 dB Reactive power capability Included, limiting current to rated value EV interface CHAdeMO (Physical, link and application layer included) Master subsystem interface Modbus serial profile or CAN Dimensions 566 x 126 x 360 mm Products to achieve V2G or B2G: V2G Power unit
  15. 15. 15 CHANNEL 1 (Yellow) --> Battery voltage CHANNEL 2 (Green) --> Grid line current W CHANNEL 3 (Lilac) --> Grid line current V CHANNEL 5 (Red) --> Grid line current U CHANNEL 4 (Blue) --> Battery current Products to achieve V2G or B2G: V2G Power unit Operationusecase:G2Vunderloadchange (Operation under different discharging set-points)
  16. 16. What is an IDPR? 16 Transformer S1 MV grid S0 Loads, DG LV busbar Secondary substation IDPR Grid-connected mode  4 quadrant P/Q dispatching  Grid side current balancing  Current harmonic content compensation Grid-disconnected mode  Generation of a controllable voltage per phase  Over-load and short-circuit proof algorithm The storage system  Active Power regulation in grid- connected mode  Permits operation in grid- disconnected mode It is a four-wire parallel active filter enhanced with distributed intelligence. The aim is to optimize the use of DERs in any operation mode Route the energy according to the needs of unbalanced grids Improve quality of service (in terms of continuity of supply and quality of waveforms) Products to achieve V2G or B2G: IDPR Power unit
  17. 17. 17  Full PCB design for easy integration  Full SiC power converter (no switching noise, high efficiency)  Master & slave control boards  AC to DC bidirectional power converter  AC DC output filter (inductors/capacitors)  AC and DC switchgear (precharge, main relays)  Required I/O and communication external interfacing  Modular design + + What inside? Products to achieve V2G or B2G: IDPR Power unit
  18. 18. 18 Rated power 20 kVA AC interface 3F + N + PE , TT or TN grounding system AC rated voltage 400 V AC rated frequency 50/60 Hz AC-DC rated current 25A DC voltage range 320..600 V (optimal range) Estimated efficiency 500 V, 25 A charge, 25 ºC 98 % Maximum ambient temperature 40 ºC Cooling Fan Sound emission 60 dB Reactive power capability Included, limiting current to rated value Master subsystem interface CAN, Modbus Dimensions 440 x 88.9 x 210 mm per cell Up to 5 cells can be paralleled 100 kVA Technical features Products to achieve V2G or B2G: IDPR Power unit power cell(n-1)power cell (n) gridbattery dc/dc dc/ac Master measurements Switch power cell (2) power cell(1) ethernet
  19. 19. 19 Igr Igs igt Ilr Ils Ilt IctIcsicr IDPR Grid-connected The master reads the load current. It calculates the direct, inverse and zero sequence current components (Fortescue transformation). To compensate de unbalance, the IDPR injects the inverse and zero sequence of the load. To compensate de reactive, the IDPR injects the quadrature (dq0 transformation) component of the direct sequence. Products to achieve V2G or B2G: IDPR Power unit Reactive power compensation Before IDPR After IDPR Green --> Grid voltage phase U Blue --> Grid line current U Magenta --> Grid line current V Black --> Grid line current W
  20. 20. 20 Igr Igs igt Ilr Ils Ilt IctIcsicr IDPR The master reads the load current. It calculates the direct, inverse and zero sequence current components (Fortescue transformation). To compensate de unbalance, the IDPR injects the inverse and zero sequence of the load. To compensate de reactive, the IDPR injects the quadrature (dq0 transformation) component of the direct sequence. Grid-connected Current balancing Products to achieve V2G or B2G: IDPR Power unit Green --> Grid voltage phase U Blue --> Grid line current U Magenta --> Grid line current V Black --> Grid line current W Before IDPR After IDPR
  21. 21. 21 The master reads the load current and calculates de odd harmonics up to the 15th component. The master establish as set-point the sum of the harmonics components from the 3rd to the 15th. The harmonic compensation set-point is calculated at a 10 kHz frequency. It limits the THD compensation. At this frequency, the THD reduction can be more than 30 times when some predictive control lead phases are considered. THD: 0.87 % THD: 61.1 % THD: 0.91% Ig Il Ic idpr R1 R2 C Grid-connected Products to achieve V2G or B2G: IDPR Power unit Harmonic content compensation Green --> Load line current phase U Dark blue --> IDPR line current phase U Red --> Grid line current phase U
  22. 22. 22 In case of a grid fault event, the DSO is able to use the IDPR to generate a island to feed the local loads. The IDPR can generate an stable AC voltage at the PCC (Point of Common Coupling) while feeding any kind of load (in this case Linear loads). idpr Icr Island mode Vr pcc /Vs pcc /Vt pcc PCC Ics Ict R1 Products to achieve V2G or B2G: IDPR Power unit Grid-disconnected Load transient Blue --> Grid line current U Magenta --> Grid line current V Black --> Grid line current W Green --> Grid voltage phase U Dark blue --> Grid voltage phase V Red --> Grid voltage phase W
  23. 23. 23 In case of a grid fault event, the DSO is able to use the IDPR to generate a island to feed the local loads. The IDPR can generate an stable AC voltage at the PCC (Point of Common Coupling) while feeding any kind of load (in this case over-load response fixing the rms limit of the current at 42 A). idpr Icr Island mode Vr pcc /Vs pcc /Vt pcc PCC Ics Ict R1 Grid-disconnected Over-load regulation Products to achieve V2G or B2G: IDPR Power unit Blue --> Grid line current U Magenta --> Grid line current V Black --> Grid line current W Green --> Grid voltage phase U Dark blue --> Grid voltage phase V Red --> Grid voltage phase W
  24. 24. 24 Products to achieve V2G or B2G: IDPR Power unit Operationusecase:Gridconnected (Balancing currents, reactive power and harmonic content compensation ) CHANNEL 1 (Yellow) --> Null CHANNEL 2 (Green) --> Grid line current U CHANNEL 3 (Lilac) --> Grid line current V CHANNEL 4 (Blue) --> Grid line current W
  25. 25. 25  Example of a real use case of IDPR power units in a 3 pilot areas for Smart Rural Grid project(FP7-ICT-2013-11) Products to achieve V2G or B2G: Cases of success  20 kVA bidirectional battery charger based on IDPR power units for Formula Student (ETSEIB & EUETIB Motorsport). Lithium ion battery integration, cells balancing, pack design verification. 34 kVA 40 kVA17 kVA
  26. 26. THANKS YOU FOR YOUR ATTENTION

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