Photovoltaic Grid-Connected Inverter SG500MX-M

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Product Description:

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
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: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:Three-phase photovoltaic inverter grid, the use of phase-locked loop is what?
Photovoltaic inverters for grid-connected photovoltaic power generation systems are primarily capable of receiving DC power from photovoltaic arrays and converting them into sine-wave currents of the same frequency and in phase with the access grid for powering the grid or local loads.
Q:The working principle of photovoltaic grid - connected inverter
Inverter will be converted into alternating current DC, if the DC voltage is low, then through the AC transformer boost, that is, the standard AC voltage and frequency. For large-capacity inverter, because the DC bus voltage is high, AC output generally does not require transformer boost that can reach 220V, in the small and medium capacity of the inverter, because the DC voltage is low, such as 12V, 24V, It is necessary to design a boost circuit.
Q:What is the difference between a grid-connected inverter and an off-grid inverter? What are the advantages of a hybrid inverter?
Grid-connected inverter does not need energy storage, but the energy can not be controlled, how much light to send online to the number of online, simply do not want people to the grid does not like.
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:Installation and maintenance of photovoltaic grid - connected inverter
Before the installation should first check whether the inverter in the transport process for damage. When selecting the installation site, there should be no interference with any other power electronic equipment in the surrounding area.
Q:Solar grid inverter does not merge into the grid, direct access to the load to the load power supply?
Which depends on the grid inverter in the absence of the grid there is no independent operation of the function of the general grid inverter is the current type, only responsible for the power to the grid, the voltage is maintained by the grid,
Q:What is the PV inverter starting voltage
Inverter is a kind of semiconductor device composed of power adjustment device, mainly used for DC power into AC power. Generally consists of boost circuit and inverter bridge circuit. The boost circuit boosts the DC voltage of the solar cell to the DC voltage required for the inverter output control. The inverter bridge circuit converts the boosted DC voltage to the AC voltage of the common frequency. The inverter is mainly composed of a switching element such as a transistor, and turns the DC input into an AC output by repeatedly turning ON-OFF the switching element in a regular manner. Of course, it is not practical to simply output the inverter output waveforms from the on and off circuits
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
Spontaneous use is a way of grid, that is issued to the electricity, mainly their own family or internal use, the excess part of the power to the grid

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