Photovoltaic Grid-Connected Inverter SG500MX-M

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1. Structure of Photovoltaic Grid-Connected Inverter SG500MX-M 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/60Hz grid, could be used in Asia, North America and Europe.

 

 

2. Main Features of the Photovoltaic Grid-Connected Inverter SG500MX-M

Advanced three-level circuit structure improves product's performance

4-MPPT, wide MPP voltage range

Modular design, long operation time

 

Film bus capacitors with long lifespan

Rotating the modules in use extends the inverter's lifespan

Inverter sleeping at night doubles the PCB lifespan

Elevated cooling performance and protection level ensures reliable operation

 

Less THD, more grid-friendly

Less common-mode interference, more environment-friendly

Compatible with two-winding transformer

Flexible setting of 1 to 4 MPPT

Reactive compensation on asymmetric power grid

Direct parallel connection at low voltage side, easy to expand the capacity

 

Comprehensive modular design

All components front-maintenance

Draw-type modules, service friendly design

 

Less THD, more grid-friendly

Less common-mode interference, more environment-friendly

Compatible with two-winding transformer

Flexible setting of 1 to 4 MPPT

Reactive compensation on asymmetric power grid

TÜV, CE, CGC certification, compliance with BDEW

 

 

3. Photovoltaic Grid-Connected Inverter SG500MX-M Images

 

 

 

 

 

4. Photovoltaic Grid-Connected Inverter SG500MX-M Specification

Input Side Data

 

Max. PV input power

560kW

Max. PV input voltage

1000V

Start voltage

520V

Min. operation voltage

480V

Max. PV input current

1064A

MPP voltage range

480~850V

No. of MPPTs

1, 2, 3, 4

No. of DC inputs

2 x 4

Output Side Data

 

Nominal AC output power

500kW

Max. AC output apparent power

550kVA

Max. AC output current

1018A

THD

<3%(Nominal power)

Nominal AC voltage

315V

AC voltage range

252~362V

Nominal grid frequency

50/60Hz

Grid frequency range

47~52 / 57~62Hz

Power factor

>0.99@default value at nominal power, adj. 0.9 overexcited~0.9 underexcited

Isolated transformer

No

DC current injection

<0.5 % In

Efficiency

 

Max. efficiency

98.80%

European efficiency

98.60%

Protection

 

Input side disconnection device

DC load switch

Output side disconnection device

AC load switch

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

1606×2034×860mm

Weight

1400kg

Operating ambient temperature range

-30~+55

Night power consumption

<100W

External auxiliary supply voltage

220V, 8A

Cooling method

Temperature controlled aircooling

Ingress protection rating

IP21

Allowable relative humidity range

0~95% no condensing

Max. operating altitude

6000m(3000m derating)

Fresh air consumption

5575 m³/h

Display

Touch screen LCD

Communication

RS485/Modbus, Ethernet

 

5. FAQ of Photovoltaic Grid-Connected Inverter SG500MX-M

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
The square wave output of the inverter using pulse width modulation integrated circuits, such as SG3525, TL494 and so on. Practice has proved that the use of SG3525 integrated circuits, and the use of power FET as a switching power components, to achieve high performance of the inverter, because the SG3525 has a direct drive power FET capability and has an internal reference source and operational amplifiers and Undervoltage protection, so its peripheral circuit is very simple.
Q:Is the PV inverter a current source or a voltage source?
Photovoltaic inverter, also known as power regulator, according to the inverter in the use of photovoltaic power generation system can be divided into two kinds of independent power supply and grid.
Q:The working principle of photovoltaic grid - connected inverter
In the small-capacity inverter generally push-pull inverter circuit, full-bridge inverter circuit and high-frequency step-up inverter circuit three, push-pull circuit, the step-up transformer neutral plug connected to the positive power supply, two power Alternating current, the output to get AC power, due to the power transistor to ground, drive and control circuit is simple, and because the transformer has a certain leakage inductance, can limit the short circuit current, thus improving the reliability of the circuit. The disadvantage is the low utilization of the transformer, driving the emotional load is poor.
Q:PV grid-connected inverter can directly load it?
TL5001 operating voltage range of 3.6 ~ 40V, its internal with an error amplifier, a regulator, oscillator, a dead zone control PWM generator, low voltage protection circuit and short circuit protection circuit
Q:PV grid-connected inverter and independent inverter in the control of what is the difference
And you said that the independent inverter, said off-grid inverter it, this inverter can not access the mains, the components of the electricity through the off-grid inverter to the battery charge, the battery at night
Q:The function of photovoltaic grid - connected inverter
In general, single-phase h-bridge is a common configuration of dc / ac-level, but can also be used in three-phase and other configurations.
Q:Installation and maintenance of photovoltaic grid - connected inverter
photovoltaic systems Power generation system used in the cable must be connected firmly, good insulation and specifications appropriate.
Q:Solar grid inverter does not merge into the grid, direct access to the load to the load power supply?
In foreign countries due to the higher penetration rate of the car to go out to work or travel can be connected with the inverter battery drive electrical and various tools work.
Q:Photovoltaic grid-connected inverter without DC emc how will happen
by means of energy converters can be converted into electrical energy. The process of converting light energy directly into electrical energy is precisely the response to photovoltaic effects. Without the need for any other mechanical parts, the energy in
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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