Elgar ETS TerraSAS 1kW
Contents
1. Curve array size for inverter testing Specifications Output voltage voc OOO oo 1020 2000 1024 600 600 160 600 1400 Input voltage AC 120 230 operational 120 230 operational 120 230 operational 208 220 VAC 208 220 VAC range 100 250 Vac range 100 250 Vac range 85 265 Vac operating range 187 operating range 187 242 VAC 242 VAC 380 400 VAC 380 400 VAC operating range 342 operating range 342 440 VAC 440 VAC 440 480 VAC 440 480 VAC operating range 396 operating range 396 528 VAC 528 VAC gt 0 9 typical gt 0 9 typical gt 0 9 typical gt 0 9 typical gt 0 9 typical Output noise lt 0 6 Vpp measured lt 0 6 Vpp measured lt 1 Vpp measured across lt 2 Vpp measured lt 0 6 Vpp measured across a 1pF capacitor across a 1uF a 1yF capacitor at the across a 1uF across a 1uF at the end of a 1 8m capacitor at the end end of a 1 8m 6ft line capacitor at the end capacitor at the end 6ft line at full load of a 1 8m 6ft line at at full load of a 1 8m 6ft line of a 1 8m 6ft line full load at full load at full load Physical dimensions e 17 5 x 1 7 x 19 0 inch e 17 5x1 7x19 0 inch 20 4x 1 7 x 19 0 inch e 25 46 x 5 25x 19 0 25 46 x 5 25 x 19 0 e 445 x 43 6 x 483 mm e 445 x 43 6 x 483 mm_ 518 x 43 6 x 483 mm inch inch e 19 lbs 8 6 kg e 19 Ibs 8 6 kg e 23 Ibs 10 5 kg e 64 7 x 13 3 x 48 3 e 64 7 x 13 3 x 48 3 cm cm e 5kW 40 Ibs 18 kg 5kW 60lb2. Elgar ETS TerraSAS Standalone TerraSAS Photovoltaic Simulator e Low output capacitance e High bandwidth up to 800Hz e High resolution l V curve simulates static and dynamic conditions e Designed for high speed Maximum Power Point Tracking MPPT e Can be integrated into a multi channel system for higher power testing e Energy Harvest and Oscilloscope measurements built in e Low voltage high bandwidth version for DC Power Optimizers For microgrids energy storage and inverter test applications the TerraSAS series photovoltaic PV simulators are specifically designed to emulate the dynamic electrical behavior of a terrestrial PV solar array They offer low output capacitance and high closed loop bandwidth to keep up with the advanced Maximum Power Point Tracking MPPT algorithms used in today s grid tied inverters The ETS Embedded TerraSAS is a high performance solution in a small form factor that combines an agile power supply with an innovative I V curve generator in a single standalone unit e ETS1000 For non isolated string inverters up to 1000Vdc Voc e ETS600 For use with string inverters that contain transformer isolation up to 600Vdc Voc e ETS80 For use with micro inverters or DC optimizers up to 80Vdc Voc Application Many solar inverters generate AC ripple on their DC input which is connected to the photovoltaic array For single phase inverters the frequency of this ripple is twice the l
3. N50530 or California Energy Commission The ability to model dynamic performance profiles allows complex test validation in any situation in a repeatible reliable manner These standard l i T profiles are impossible to simulate with a real Time du 18 array It can also be controlled to a very fine degree and real profiles can be entered and run trom actual speed to 100 times actual speed for accelerated lifecycle tests Tl ee aie E TerraSAS dynamic irradiance profile display CH P A Time s Offset s5 P1 0 00 0 00 0 00 0 00 0 00 0 00 858 458 0223 sales ProgrammablePower com 3 ETS TerraSAS Specifications Photovoltaic array modeling mismatched panels which result in multiple hump This feature allows the user to quickly define l V curves It is important to verify that the MPPT an array of PV panels connected in series or algorithm finds and settles on the universal MPP parallel Using this array modeling capability the not a local maximum user can simulate such real world conditions as Photovoltaic array modeling Bo cy be rn oS MA Ti ie Foy A e i i A a gm a Import module data Build the array model by The effects of shadowing aging and faulty modules from embedded binding to the desired can be previewed in real time the resulting l V Sandia database and curve and specifying the curve can be dragged and dropped to any output create l V
4. e refer to the connection diagrams located in the User Manual and follow appropriate wiring codes before connecting ETS PV simulators in series or parallel z ar F E Real time l V curve display The Elgar Real time l V curve display is updated 20 times per second to illustrate dynamic inverter behavior operating point and sweep amplitude Compared to other commercially available solar array simulators with an update rate of only 1Hz this allows more accurate analysis of the inverter s actual MPP tracking ability www ProgrammablePower com ETS TerraSAS 1kW 1MW Basic l V Curve simulation WS or g BPO SS PE E a cee 1 Create and add a curve 2 Drag and drop this curve onto 3 Click the ON OFF button on the channel tile the channel tile to execute curve Basic l V Curve simulation The Elgar TerraSAS user interface is intuitive graphically colorful and simple to learn l V curves are created by entering simple parametric data or by importing data from the Sandia TAM database Itis not necessary to use Java Script or any other Script hosting to create an IV curve and execute it Chanel t kradan e ponis Dynamic Irradiance profile display The Elgar TerraSAS profile display of Irradiance and temperature is unique and innovative It enables inverter designers to easily load and implement standards based cloudy condition scenarios such as the weighted efficiency measurements called out in E
5. ine frequency 120 Hz tor US models The simulator s power supplies must not suppress this ripple as a function of their regulation loop An increasing number of inverters and virtually all micro inverters accurately measure amplitude and phase of the ripple voltage and current to quickly track the MPP of the array This approach allows tracking the MPP at a much higher speed when compared to conventional dithering techniques also called perturbate and observe Faster tracking of the 858 458 0223 1kW 1MW 60 V MPP results in a much higher overall efficiency in cloudy conditions where the irradiance is constantly changing It is likely that all solar inverters will use this approach in the near future since end users are very sensitive to the overall efficiency of their solar energy installations To satisfy this requirement the PV simulator must be capable of reproducing the voltage current behavior of a solar array at the ripple frequency Most standard switching power supplies employ very large output capacitors and inductors in their output circuits and are unable to deliver the required performance regardless of the response speed of the l V curve controller Elgar s TerraSAS line of PV simulators are based on high speed versions of our standard products where output capacitors and other speed limiting components have been adjusted This results in a speed improvement of 10 times or better Proprietary feature
6. s 27kg e 10kW 60lbs 27kg 10kw 80lbs 36kg e 15kw 80lbs 36ko Regulatory Certified to UL CSA 61010 and IEC EN 61010 1 4 AMETEK www ProgrammablePower com
7. s built into the PV controller hardware and firmware combined with our high speed power supplies deliver the required performance This technology was extensively tested on micro inverters and is ready to test the next generation of inverters The required performance is delivered by high speed switching power supplies and advanced DSP signal processing techniques In some conditions traditional DC power sources using IGBT technology do not meet MPPT response speed requirements depending on the MPPT principles Our power supplies use Power MOSFETs which typically switch ten times as fast as the most recent IGBTs Higher switching frequency translates to smaller output capacitors and inductors which is the key to a successful high speed power supply design AMETEK Programmable Power 9250 Brown Deer Road San Diego CA 92121 2267 USA AMETEK PROGRAMMABLE POWER Sales ProgrammablePower com 09052012 2 ETS TerraSAS AMETEK Product Overview The ETS series standalone TerraSAS consists of a programmable DC power supply with control software and GUI interface output isolation and a unique PV simulation engine that provides the l V curve This combination of hardware software and firmware allows the TerraSAS to simulate test protocols or combinations of events that a real world solar installation will be subjected to The included software allows modeling of a PV panel without an extensi
8. ve knowledge of solar array parameters The only parameters required for a simulation are the open circuit voltage Voc short circuit current Isc and the peak power parameters Vmpp and Impp Changes to these parameters allow the shape of the l V curve to be adapted to any fill factor between 0 5 and 0 95 Once an I V curve has been generated changes to the irradiation level or temperature can be modified on the fly to test the behavior of a grid tied inverter under realistic conditions for cloud shadowing and panel temperature rise Long term weather simulations can be loaded and run to determine the amount of energy harvest delivered in a given situation Inverter designers use these accuracy and efficiency tests to optimize real MPP search modes Scalability Power supplies are available in 850W 5kW 10kW and 15KW increments The 80V units are available in two power levels 1200W for microinverters and 850W for DC power optimizers The bandwidth on the 850W version has been improved to 2kHz by adding a linear regulation output stage 600V units are available in 5kW 10kW and 15kW versions depending on Isc requirements 1000V units are available in 5kW and 10kW versions depending on Isc requirements All versions are easily connected in parallel to scale output power up to handle microinverters string inverters and even utility scale inverters Many models can also be connected in series to handle higher voltage tests Pleas
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