200W-1000W 24-30V INPUT WIND POWER MICRO-INVERTER

MODEL: SP-WGTI-200W / 1000W

System Function

Display function

A) Power failure display

LED in red:

1. Power cut off

2. Output failure

3. Power grid fault

4. DC low- voltage display(protection)

5. DC over-voltage display(protection)

6. Over temperature display(protection)

B) Power adjust display

1. LED in green and steady, it means the power is locked, and the inverter works.

voltage input(24V-30V)

1. DC voltage input：24-30VDC

2 Second level power variable voltage conversion

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.

Vector wind speed automatic control

Adopt precise vector wind speed automatic control function. In different wind speeds, the output voltage of wind power generator is different. It means the output voltage is not stable in the long run. It’s very hard to control working condition in the steady state whether for the battery control or inverter system. Because of the unsteady voltage of the wind turbine, the inverter using load for automatic control wind power generator speed, at high speed, load increasing, at low speed, load corresponding reducing. It could make the wind power generator in a constant speed state and control the output voltage at stability of wind power generator. In the same time it could make the wind generator power of all the output to the load! Then greatly improve the efficiency of wind power and its utilization rate of increase! The experiment shows that this system could make theutilization rate of wind power up by more than 40%. And do not need to connect battery.

1. Vector wind speed automatic control: the precision is 0.1 V

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: < 1%

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

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.

Current Limit Protection

Current limit, this product is constant current, constant output power, without any overload, over-current phenomenon.

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.

Accessories for product

1. One warranty card

2. One user manual

3. One certificate of quality

4. One AC power line

Stack using

In order to achieve higher power use requirements, this product can be stacked, such as: 4 grid inverter260W stacking can achieve 1040W.And the number of the stacking is unlimited. Used as shown in

DC Input

Input voltage range: 24V to 30V

Standard voltage of wind turbine: 24V

AC output

Voltage range of the inverter whose output is 220V AC.: 190V - 260V，50HZ

Voltage range of the inverter whose output is 110V AC.: 90V - 160V，60HZ

Parameter Table

Grid-series models	200W	300W	400W	500W	600W	800W	1000W
Maximum input current ( DC )	8A	12A	16A	20A	24A	32A	40A
DC Maximum Input	300W	400W	500W	600W	700W	900W	1200W
DC maximum voltage	30 V
DC voltage range	24V~30V
Maximum output power factor	99%
Anti-voltage protection	Fuse
Output short circuit protection	Current Limiting
AC standard voltage range	90V-140 VAC / 180~260VAC
AC frequency range	55Hz~63Hz / 45Hz~53Hz
harmonic distortion	THDIAC < 5%
Phase error	< 1%
Islanding protection	VAC; f AC
Ambient temperature range	-25 ℃ ~ 60℃
Humidity	0~99% ( Indoor Design )
Waterproof	Indoor Design
Cooling	Fan
Electromagnetic Compatibility	EN50081.part1 EN50082.part1
Power System Disturbance	EN61000-3-2 EN62109
Network test	DIN VDE 1026

N.W (kg)	0.77（200-300W）	1.3(400—600W)	2.0(800—1000W)
G．W (kg)	1.15（200—300W）	1.8(400—600W)	2.5(800—1000W)
SIZE (L x W x H)	18.7 x 12.6 x 5.1 cm	21 x 16.5 x 5.3cm	31 x 16.5 x 5.5cm
PACKING (L x W x H :cm)	inner box :27x19.5 x 9.5（1PC） outer box :49.5x28.5x 41(10PCS)	inner box : 30.5x21x11.5(1PC) outer box : 42.5x31.5x36.5(6PCS)	inner box : 39.5 x 21 x 11.5(1PC) outer box : 42.5x40.5x25(4PCS)
power cord length	1.8 m

User Guide

1、Installation Connection

1、Connect both of the wind turbine and grid Inverter terminal directly, red to red, black to black.

2、Connection the AC cord to home 3PIN AC outlet directly.

3、Turn on the switch of the panel, the Grid Inverter will be work.

200W-1000W 24-30V INPUT WIND POWER MICRO-INVERTER

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:

CH1 = yellow color is the wind micro-inverter input voltage 

CH2 = green color is the wind 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

System islanding operation: power failure, the system shut down

System islanding operation: When the AC voltage peak power failure the system shut down

Night mode: When the input voltage is less than the low-voltage threshold, the system shut down

Wind power generator voltage ripple and current ripple

Notes

---Do note the operating voltage range of 24 V-30V, or it will not in normal operation.

---Non-professional do not disassemble the inverter, only qualified serviceman can repair it.

---Please install inverter in the low humidity and well-ventilated place to avoid the inverter overheating, and clear around the inflammable and explosive materials.

---Using the inverter out of children’s reaching place to avoid electric shock.

--- Recommended to use 4 AWG DC input cable that can handle more than 50 A current.

- - The optimum length of DC input cable is 8 M or shorter, because long cable will make more power loss of the DC voltage dropped from solar panels to inverter.

---Connect the AC terminal to AC power socket.

---Connect the DC terminal to wind turbine.

System islanding operation: When the AC voltage power grid in the zero value at the failure of the system shut down

[SOLAR GRID TIE INVERTER] Previous 200W GRID TIE INVERTER Next