SOLAR POWER MICRO-INVERTER
Contents
1. GRID TIE IMVERTER UTD RLAL RIEVMO Beijing Multift Electrical Technologv Co Ltd Tel 86 10 87227420 Fax 86 10 87227420 Website http www multifitele com Address Room812 Block B 3 Rongjingdong Street Beijing Economic Technological development Zone 100176 Beijing China SOLAR POWER MICRO INVERTER 260W PV micro inverter User Manual System function gt Power line carrier current communication Used in WVC series By using electric power as a carrier of AC alternating current can modulate high frequency and carrier frequency 60KHz in AC wire transmission and can achieve the communication newsletter between inverters or between inverter and computer And it can transfer the power data and the brightness date of the sunshine in the real time Also monitor all functions of inverter 1 Carrier frequency 60KHZ Frequency customizable 2 Interface way TTL level serial interface 3 Carrier rate 300BPS 4 Serial rate 9600BPS Can customize according to customer s request Modulation mode FSK DSSS Newsletter distance 2Km ON NN gt 6 grade power search In overcast weather the solar battery s output current is extremely tiny then inverter will automatic open 6 grade power search function 1 The program can automatically open power adjustment for 6 times 2 The current direction can adjust from the maximum to the minimum 3 In automatic adjustment process we will see the2. s AC terminal Show below IE InVERTER lel NM SARI ML f L Q VA of 3 ON J AC l T 1 3 GE Notes Please connect the inverter following the operation instruction show LED display above If have any question please contact with relative persons Beijing Multifit Electrical Technology Co Ltd B 4 Ni Wize ATO Mae a I SOLAR POWER MICRO INVERTER Non professionals do not disassemble Only qualified personnel may repair this product Please install inverter in the low humidity and well ventilated place to avoid the inverter over heating and clear around the inflammable and explosive materials When using this product avoid children touching playing to avoid electric shock Connected solar panels battery or wind generators DC input DC power supply cable System islanding operation When the AC voltage power grid in the zero value at the failure of the system shut down B 00v B 200 15805 1000r Stop 5 W 250 AMSI4 2031A Source A Select Measure Clear Thresholds 3 RMS RMS Meas lt Night mode When the input voltage is less than the low voltage threshold the system shut down Q ow B 100v B S00 p Bi9er 20000 Stop 5 UB 250V AMSA 2000A t3 Acq Mode Realtime High Res a PV panels voltage ripple and current ripple 200v soory E 100v 2004
3. red when the AC power is unconnected and the LED ae like below when the AC power is connected The LED shows like below A Power failure display LED in red 1 Use the 4 10mm screws to fix the inverter on the holder of the solar panel Show below Power cut off Output failure l 2 3 Power grid fault Use screws to fix the inverter on the 4 DC low voltage displav protection holder of the solar panel 5 DC over voltage display protection 6 Over temperature display protection B Power adjust display 1 LED in green but flashing it means power is in adjusting condition 2 LED in green and steady it means the power is locked and the inverter works Single phase connection Connection electrical diagram of the solar inverter used in single phase power generation system show below 2 Connect we two UU terminal OL UE FV LO We INVETUCI positive to positive negative to negative Show below L DC terminal fo TE solar panel IA D Single phase input N 6 ROS MOO CTAN JAU SIL Glas 3 Connection of AC output connect the AC wire to the AC waterproof plug Show below Three phase connection Connection electrical diagram of the solar inverter used in three phase G elow i power qeneration system show below Red L N Black SE G Yellow Fi 4 Connect the AC plug to the inverter
4. 2 Over zero protection 0 2 VAC 3 AC switching 50Hz 60Hz Synchronous High frequency Modulation In the process of the grid usually adapt the same phase angle in parallel ie When the two phase alternating current total is equal to 0 Use switch to combination the two AC fusion and the product is rectified AC half frequency AC to 100Hz first then the machine use the high frequency current in the circuit and semi 100Hz frequency alternating current generated combination to achieve high frequency modulation 1 Modulation synthesis half wave and full bridge modulation synthesis 100Hz 120Hz 2 Synthetic way MOSFET full bridge 3 High frequency 50KHz Pure Sine Wave Output Use SPWM directly to make pure sine wave output 1 Output waveform Adopt complementary PWM to push pull pure sine wave 2 Generate means enhancement mode SPWM Automatic Sensing Function Solar Luminosity Use the latest luminosity perception operation technology The different illuminate angle and intensity of the solar panel will produce different current output Use advanced CPU to operate the different intensity of illumination and the data can be directly displayed on the LCD Then you can visually see the sense of the strength of the sun unit Used more convenient 1 Luminosity sampling point power sampling point 2 High precision AD sampling integral AD sampling method Power Automatically Locked APL In different current fluctuations we should use th
5. 7 gt O0s 10007 Stop 40v AX 83 800000000ms 1 AX 11 933Hz Mode Source x Y Normal l va Accessories for product 1 One warranty card 2 One user manual 3 One certificate of quality Beijing Multifit Electrical Technology Co Ltd Laboratory test results and waveforms The following figure shows the grid voltage grid current system transfer and island transportation MPP voltage waveform In the following oscilloscope images waveforms color and have the following meanings CHI yellow color is the solar micro inverter input voltage CH2 green color is the solar micro inverter input current CH3 purple color is the power grid voltage CH4 magenta color is the power grid current Grid voltage and grid current E 500v 200 Oos 5 000r Stop 4 MB 250v RMS 4 1 1 983A Source lt 4 Select Measure Clear Thresholds a RMS RMS Meas os System islanding operation power failure the system shut down U g B 100v E 2004 7 p 1320s 500 07 Stop f E 250V RMSI4 1 962A Source 42 Select Measure Clear Thresholds 4 RNS RMS Meas te System islanding operation When the AC voltage peak power failure the system shut down B 100v B 200A 93000 1000R Stop M 250V AMS 4 1 9804 Source Select Measure Clear Thresholds 4 RMS RMS Meas gt i
6. LOW light flashing And the power will keep as a starting point from 0 to the maximum output power and it will restart at most for 6 times then locked in the maximum power the ST lamp long bright 4 It need 10 minutes for 6 grade power search gt Wide voltage input 22 60VDC Achieve wide voltage input 1 DC voltage input 22 60VDC 2 Second level power variable voltage conversion gt High frequency two way and one way grid function 1 High frequency direct modulation AC half wave synthesis 2 Two way grid means Load consume directly And can reverse AC current transmission Kinds of frequency output function 1 It can apply to 50Hz and 60Hz frequency of AC 2 Frequency range 48Hz 63Hz directly connected to the solar panels do not need to connect the battery Using precise Dynamic differential pressure type MPPT function APL functions the inverter automatically adjust the solar panels of maximum output power simply connect the solar panel to the grid inverters Do not need to connect the battery 1 Differential pressure type MPPT 0 1 V accuracy 2 Power lock 10W AC output AC 0 angle with high precision auto detection AC phase angle of 0 through isolation amplifier then input to the MCU for high precision detection and analysis The phase shift rate is less than 1 thus achieve high precision with phase modulation AC output together 1 AC phase shift lt 1 Beijing Multifit Electrical Technology Co Ltd
7. e MPPT function When the MPPT function adjusted to the maximum power point the product automatically powers locked in maximum power point then made the output power more stable 1 Power lock The biggest sampling point of MPPT Automatically Adapt To Different Load Power Factor Adapt to any of the power load Constant Current Constant Power This product is constant current constant output power without any overload over current phenomenon Automatically Shut Down When The Power Grid Fault When the city power system is in failure the inverter will automatically turn off the output 1 Current Limit Protection 2 Current limit Stack Multiple Machines Multiple small power inverters in parallel can achieve large output power High Frequency High Conversion Rate Adapt high frequency converter the output more efficient Maximum Power Point Tracking MPPT Because the current intensity and the voltage changes at any time if there is no power point tracking there will be a lot of problems In the past time usually adopt a solar controller but this product uses high precision MPPT operation power automatic and immediate adjust the solar panels output power at the maximum output point then achieve a stable output purposes 2 11 mall SOLAR POWER MICRO INVERTER MPPT is for short of Maximum Power Point Tracking It means the can be output through the MPPT Thus improve the charging efficiencv controller can sense the vol
8. t the same time it will definitely affect the speed of a NOMS hi Wall ERC Cede ordna VOL ee ne kol Wie the car For traditional inverter speaking the parameter output power is gt AC output been set in factory It likes a car have been fixed set on fixed gears no Voltage range of the inverter whose output is 220V AC 190V 260V matter how powerfully you trample accelerator the speed of a car is 50HZ limited While have the MPPT function it will be different it is Voltage range of the inverter whose output is 110V AC 90V 160V automatically It will automatically adjust the gears according to the 60HZ engine speed so it can make cars in the most gears in a reasonable efficiency standard operation It means the MPPT controller can track the Parameter table maximum power point of solar panels in real time then express the biggest efficiency of solar panels The higher the voltage the more power MAX output power factor 0 99 O LED mode power instruction voltage instruction AC frequency instruction over voltage instruction EN61000 3 2__EN62109 Certificate IW Night Power IW Packing and weight 0 66kg 0 78kg Size L x W x H 215x78x50mm Package L x W x H Inner box 31x12x8 5CM Big box 54x33x51CM Back of solar panel se Beijing Multifit Electrical Technology Co Ltd wall SOLAR POWER MICRO INVERTER U L Finished all the connections confirm the AC and DC connection is right Operation Instruction The LED is
9. tage of the solar panels on time and can Theoretically speaking using MPPT the efficiency can be increased by track the highest voltage and current VI Then made the inverter 50 compared with the traditional inverter But due to environmental discharge to power grid with the highest efficiency impact and various around energy loss the ultimate efficiency can The peak voltage Vpp of the solar panels is about 38V when it in improve 20 30 according to our actual testing factory And the environment temperature is 25 C The reason of gt Stack using In order to achieve higher power use requirements this product can be stacked Such as 4 micro inverter of 260W stacking can achieve 1040W And the number of the stacking is unlimited setting this temperature interestingly different from the subjective imagination we ordinary people the conclusion may let us surprised is that when the weather is very hot solar panels peak voltage will fall to gt about 36 V while in cold weather the peak voltage can achieve 43 V Input ane 22V to 60V Now we back to contrast the difference of MPPT solar energy grid Solar Panel Recommend using the power more than 30W and the standard inverter and traditional inverter The traditional solar inverter is a bit like voltage of 36V PV panels the manual gearbox When the engine speed increase while the gearbox Recommend using multiple solar panels Solar panel in series will result in gear don t increase a
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