Gli atti dei convegni e più di contenuti su

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1 Termotecnica Energy Pompe di Calore Storage Industriale Gli atti dei convegni e più di contenuti su

2 Danfoss Drives Hybrid Solutions Ing Dario Rudellin 1 Danfoss Drives DKDD.EP.409.A2.02

3 Why Now? Overviews on Li-Ion batteries The Li-Ion cell was invented and developed in the 1970 ies. Sony introduced the first commercial Li-Ion battery in Energy Storage: largest projects mainly with LB Electric cars, buses, commercial vehicles, marine etc. >95% of all applications are powered by Lithium Ion Lithium Ion cells are everywhere Easy to use Work well everywhere Highest energy efficiency Largest global R&D resources for batteries Market size Increasing rapidly for Energy Storage & E-Mobility applications 2 Danfoss Drives DKDD.EP.409.A2.02

4 Whynow? Overview in the Italian production electricity - Andamento della produzione energia elettrica italiana 39% 5% 9% 3 Danfoss Drives DKDD.EP.409.A2.02

5 Whynow? Overview on daily electricity needs Andamento della domanda elettrica nazionale - Giornaliero Daily power needs: 1. Strong forecast 2. Difference from forecast and usage 3. Same situation in related small energy plant and locally 4. Needs to fill the difference in efficient way 4 Danfoss Drives DKDD.EP.409.A2.02

6 Introduction to hybridization via energy storage COMMERCIAL Level peak power BUILDINGS Backup power for disturbance situation TRANSPORTATION Effieciency Energy Saving LAND CONSTRUCTION & MINING Frequency regulation / inertia emulation Spinning reserves Overload ability / Boosting Fast starting/reacting ENERGY PRODUCTION Effieciency Energy Saving HARBORS WINDMILL SOLAR The variable, intermittent power output from a renewable power plant, such as wind or solar, can be maintained at a committed (firm) level for a period of time. MARINE & OFFSHORE PROCESS IND., OEM Level peak power Backup power for disturbance situation GRID & SUBSTATION Substation level peak power compensation Backup power for disturbance situation Energy production optimization in co-operation with diesel generators Consumption optimization of loads in marine environment Harbour clean energy 5 Danfoss Drives DKDD.EP.409.A2.02

7 Basics Typical applications are 1. Time shift for production 2. Peak load shaving for incoming power 3. Back-up power or black-out start Category Use case Application Below 1min Frequency regulation Peak shaving Back-up power or Power quality Black-out start Below 15min Load leveling Capacity firming Spinning reserve Time shifting Back-up power or Black-out start Above 15min Power management Peak shaving Energy management Time shifting 6 Danfoss Drives DKDD.EP.409.A2.02

8 Peak shaving Olympic Energy, has been in operation since July Energy storage of 2x 700kW working in power peak shave mode, so that the LNG engine can run at optimum load. 7 Danfoss Drives DKDD.EP.409.A2.02

9 Above 15 minutes 8 Danfoss Drives DKDD.EP.409.A2.02

10 Introduction to hybridization via Centralized energy storage Basic idea is always to solve issues in power demand with the most cost effective and suitable manner. Centralized method typically solves not only one targeted issue but is used for many issues simulatenously. Simultaneously many applications Simultaneously many targets (consumers) P P t t 9 Danfoss Drives DKDD.EP.409.A2.02

11 Energy storage directly to AC-grid with Grid Converter Component count Efficiency Size 10 Danfoss Drives DKDD.EP.409.A2.02

12 Grid Converter - Modules 500 Vac modules DC-link input VDC* FR4 1,5-5,5 kw FR6 7,5-22 kw FR kw FR8 75 kw FI kw FI kw FI kw FI kw FI kw 690 Vac modules - DC link VDC* FR kw FR kw FR kw FI kw FI kw FI kw FI kw FI kw * DC-source side controllable from 100Vdc up to DC-link level: only with DC-DC converter FR4 FR7 FR9 FI9 FI13 11 Danfoss Drives DKDD.EP.409.A2.02

13 LCL filters for 380V-500V supply DC fan with integrated DC/DC power supply LCL02615B0R011T (NXA02615, FI9) LCL04605B0R011T (NXA04605, FI10) LCL13005B0R011T (NXA13005, FI13) DC fan without integrated DC/DC power supply LCL02615A0R011T (NXA02615, FI9) LCL04605A0R011T (NXA04605, FI10) LCL13005A0R011T (NXA13005, FI13) LCL filter includes control connection to AFE module LCL FAN monitor, over temperature 12 Danfoss Drives DKDD.EP.409.A2.02

14 LCL filters for 525V-690V supply DC fan with integrated DC/DC power supply LCL01706B0R011T (NXA01706, FI9) LCL03256B0R011T (NXA03256, FI10) LCL10306B0R011T (NXA10306, FI13) DC fan without integrated DC/DC power supply LCL01706A0R011T (NXA01706, FI9) LCL03256A0R011T (NXA03256, FI10) LCL10306A0R011T (NXA10306, FI13) LCL filter includes control connection to AFE module LCL FAN monitor, over temperature 13 Danfoss Drives DKDD.EP.409.A2.02

15 Danfoss Drives approach to hybridization Energy storage is formed from a combination of different systems We collaborate with our customers at system level! The real integration and benefits of energy storage are realized and achieved at system level with good PMS & EMS We are storage technology independent The same familiar products from the VACON product family used already today are equipped with functions to support energy storage integration 14 Danfoss Drives DKDD.EP.409.A2.02

16 15 Danfoss Drives DKDD.EP.409.A2.02 Energy Storage Value Chain

17 Frequency Regulation Different methods available for frequency regulation include generator inertia, adding and subtracting generation assets, dedicated demand response and electricity storage. Frequency regulation is mainly provided by ramping (up and/or down) of generation assets and electricity storage. This typically takes minutes rather than seconds. Electricity storage has the capability for doing the job in milliseconds Storage technologies also improve the quality of power through frequency regulation, allows companies to produce power when it is cheapest and most efficient, and provide an uninterruptible source of power for critical infrastructure and services. 16 Danfoss Drives DKDD.EP.409.A2.02

18 Frequency Regulation Droop mode When the power demand increases, all generators on the grid allow frequency to droop. This will balance the load all the generators on the grid. Then the PMS gives all generators a command to increase frequency so that the grid frequency is maintained at its nominal value. When the load is reducing on the grid, the frequency of the generators will increase, and the PMS gives a command to decrease frequency. 17 Danfoss Drives DKDD.EP.409.A2.02

19 Frequency Regulation Isochronous Speed Mode In the isochronous speed control mode, the Micro Grid frequency reference is kept the same as the grid frequency. This will keep power at zero regardless of grid frequency. The actual power is controlled by base current reference. This reference needs to be controller by power management system (PMS) that will handle power sharing between different machines on the grid. 18 Danfoss Drives DKDD.EP.409.A2.02

20 Current Reference Current reference is % of System Rated Current Battery nominal discharge current For starting, initial current reference can be selected Individual phase current reference is possible 19 Danfoss Drives DKDD.EP.409.A2.02

21 Current Reference step 0 to 100% 20 Danfoss Drives DKDD.EP.409.A2.02

22 Current Limit handling Current limit in amps [A] Current limit for discharging [%] Current limit for charging [%] 21 Danfoss Drives DKDD.EP.409.A2.02

23 PC Tools VACON Select Web interface VACON NCDrive Downloadable from homepage drives.danfoss.com Danfoss Link 22 Danfoss Drives DKDD.EP.409.A2.02

24 Technical Communication 23 Danfoss Drives DKDD.EP.409.A2.02

25 24 Danfoss Drives DKDD.EP.409.A2.02