Grid Tied TE-300W-WV, TE-500W–WV User Manual

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TE- 300/500W –WV Series Inverters

User Manual

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System Function

z Display function

1、 AC voltage display

When the 125VAC LED lit up, it means the AC output is 125V.
When the 230VAC LED lit up, it means the AC output is 230V.

2、 Outage display

When the Fault LED lit up, is means there is no electricity or the output is fail, and the inverter restart.

3、 Power shows

Power output LED: The 5 red LEDS take turns lighting, the quicker the lights move, the more power output.

4、 AC frequency display

When the 50Hz LED lit up, it means the input frequency is 50Hz.
When the 60Hz LED lit up, it means the input frequency is 60Hz.

5、 DC over-voltage display

When the Fault LED and the “HIGH” LED lit up, it means the DC input is over 62VDC

6、 DC under- voltage display

When the Fault LED and the “LOW” LED lit up, it means the DC input is low 22VDC.

7、 Power adjust display

1) When “ST” LED flashing, it means power is in adjusting condition.
a. When the “ST” LED and “HIGH” LED lit up, it means the power is increase.
b. When the “ST” LED and “LOW” LED lit up, it means the power is decrease.

2) When “ST” LED long on time, is means the power is locked, and the inverter works.

z 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.

2、The program can automatically open power adjustment for 6 times.
3、The current direction can adjust from the maximum to the minimum.
4、In automatic adjustment process, we will see the 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.

5、It need 10 minutes for 6-grade power search.

z Wide voltage input(22-60VDC）

Achieve wide voltage input.
1、DC voltage input：22-60VDC
2、Second level power variable voltage conversion

z 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.
3、 One-way grid means: Load consume directly. And banned reverse AC current transmission.

z Kinds of frequency output function.

It can apply to 50Hz and 60Hz frequency of AC.
Frequency range: 45Hz ~53Hz/55Hz~ 63Hz

z 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

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2、 Power lock: 10W (AC output)

z 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

z 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 illuminance 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 the 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.

z Constant Current, Constant Power

This product is constant current, constant output power, without any overload, over-current phenomenon.

z Automatically Shut Down When The Power Output Of a Fault

When the city power system is in failure, the inverter will automatically turn off the output.

Current Limit Protection

Current limit

z Stack Multiple Machines
z Multiple small power inverters in parallel can achieve large output power.
z 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