Photovoltaic Grid-Connected Inverter SG1000TS

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1. Structure of Photovoltaic Grid-Connected Inverter SG1000TS Description

A solar inverter, or PV inverter, or Solar converter, converts the variable direct current (DC) output of a photovoltaic (PV) solar panel into

 autility frequency alternating current (AC) that can be fed into a commercial electrical grid or used by a local, off-grid electrical network.

 It is acritical BOS–component in a photovoltaic system, allowing the use of ordinary AC-powered equipment. Solar inverters have

special functions adapted for use with photovoltaic arrays, including maximum power point tracking and anti-islanding protection.

Suitable for 50Hz grid, could be used in Asia, Australia and Europe.

 

 

2. Main Features of the Photovoltaic Grid-Connected Inverter SG1000TS

• 5 square meters area for megawatt-class equipment

• Transport and installation by forklift, more flexible and economical

 

• Open door design of three sides, easy for installation and maintenance

• More flexible for inner devices overall replacement

 

• Efficient cooling patented design

• Patented structure design of inlet and outlet, effective dust proof

• efficient heat insulation layer

 

 

3. Photovoltaic Grid-Connected Inverter SG1000TS Images

 

 

 

 

 

4. Photovoltaic Grid-Connected Inverter SG1000TS Specification

Input Side Data(DC)

Max. DC power (@ cos φ =1)

1120kW

Max. input voltage

1000V

Start voltage

 500V

Min. working voltage

460V

Max. input current

2440A

MPPT voltage range 

460~850V

Output Side Data(AC)

Rated power

1000kW

Max. output AC power

1100kVA

Max. output current

2016A

Max. THD

<3%(at nominal power)

Rated grid voltage

315V

Grid voltage range

252~362V 

Rated grid frequency

50Hz/60Hz

Grid frequency range

47~52Hz/57~62Hz

Power factor at rated power

>0.99

DC current injection

<0.5% of rated inverter output current

Adjustable displacement factor

0.9 (lagging) ~0.9 (leading)

Efficiency

Max. efficiency

98.70%

European efficiency

98.50%

Protection

DC overvoltage protection 

Yes

AC overvoltage protection

Yes

Grid monitoring

Yes

Ground fault monitoring

Yes

Overheat protection

Yes

Insulation monitoring 

Yes

General Data

DimensionsW×H×D

2538X2470X2050mm

Weight

4200Kg

Operating temperature range

-35~50

External auxiliary supply voltage (Opt.)

380V

Cooling concept

Temperature controlled air-cooling

Degree of protection

IP54

Max. permissible value for relative humidity (non-condensing)

0~95%, non -condensing

Max. altitude

6000m ( >3000m derating)

Communication port/protocols

StandardRS485/ ModbusInternet

Options:  CDTDNP3.0101103104GPRS/CDMA module

 

 

 

5. FAQ of Photovoltaic Grid-Connected Inverter SG1000TS

Q1. What is the difference between inverter and solar inverter?

A1. Inverter only has AC inpput, but solar inverter both connect to AC input and solar panel, it saves more power.

 

 

Q2. What is the difference between MPPT&PWM?

A2. MPPT has higher efficiency, it can track the max power point and won't waste energy.

 

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Q:What are the methods of photovoltaic grid-connected inverter control
Sine wave output inverter control integrated circuits, sine wave output of the inverter, the control circuit can be used microprocessor control, such as INTEL company produced 80C196MC, Motorola produced MP16 and MI-CROCHIP company PIC16C73 and so on, these single-chip microcomputer has a multi-channel PWM generator,
Q:What is the difference between a PV inverter and a solar inverter?
The main component of the inverter is the three-phase bridge converter. The main purpose of the grid-connected inverter is to change the power to DC and change the AC power. The main purpose is to improve the power quality (because the wind power generation is very large
Q:What is the difference between low voltage grid connection and medium voltage grid connection?
Have a low pressure through the function set, low pressure through the scope of the project requirements, grid and network requirements and the actual situation of the design), low voltage grid to pass the voltage range is less than the medium pressure, parameter settings are not sensitive and complex.
Q:How the output voltage of the PV inverter and the grid-connected voltage are determined
DC voltage and AC side voltage does not matter, the general PV inverter AC output is 400V / N / PE. With no isolation transformer and output voltage does not matter, grid-connected inverter is the regulation of current, and network voltage depends on the grid voltage. And the grid before the inverter will detect the grid voltage, meet the conditions will be network.
Q:PV grid-connected inverter can directly load it?
Grid-connected inverter is like a car file, he first detects the grid waveform, can not detect not boot, and then the PV DC modulation and consistent with the grid waveform, and then hang up.
Q:PV grid-connected inverter and independent inverter in the control of what is the difference
Photovoltaic grid-connected inverter is the assembly of the DC into AC power for the use of load, or do not use the load, the inverter after the AC power to the city power grid, when the electricity outage, the inverter will automatically
Q:What is the difference between a PV grid-connected inverter and an off-grid inverter?
Grid-connected inverter does not need energy storage, but the energy can not be controlled, the number of photovoltaic sent to send online how much, simply do not want people to.
Q:Installation and maintenance of photovoltaic grid - connected inverter
Before making an electrical connection, be sure to use the opaque material to cover or disconnect the PV panel. Exposure to sunlight, photovoltaic arrays will produce dangerous voltages. All installation operations must be done only by qualified technicians.
Q:What is the PV inverter starting voltage
The inverter not only has the function of direct current conversion, but also has the function of maximizing the performance of the solar cell and the system fault protection function. (With grid system), automatic voltage adjustment function (for network connection), DC detection function (for network connection), DC grounding detection (for network connection), automatic power control function Function (for grid connection). Here is a brief introduction to automatic operation and shutdown function and maximum power tracking control function.
Q:In a photovoltaic grid-connected project, the role of the inverter is to convert the voltage into AC 220V or 380V for the grid, since the transformer will raise the voltage again
Connected to the grid is connected to which specific location ah? Transformer is to buy a separate, or buy inverter inside the type of transformer? For example, Sweden's 15KW and 30KW grid roof projects, the roof, for example, more remote to be transported to other electricity.

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