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About the function and classification of off grid wind solar system inverter

(Summary description)The classification of inverters is conducive to off grid wind solar system designers and users to identify and select inverters. In fact, inverters with the same waveform are still very different in terms of circuit principle, use of devices and control methods.

About the function and classification of off grid wind solar system inverter

(Summary description)The classification of inverters is conducive to off grid wind solar system designers and users to identify and select inverters. In fact, inverters with the same waveform are still very different in terms of circuit principle, use of devices and control methods.

Information

The off grid wind solar system is composed of solar panels, charge controllers, inverters and batteries, while solar DC power generation systems do not include inverters. This article mainly elaborates on the functions and classification of solar inverters.

off grid wind solar system
1. The function of the inverter
Off grid wind solar system inverter is a kind of power conversion device. Its main function is to invert the DC power of the battery into AC power. Through the full bridge circuit, the SPWM processor is generally used for modulation, filtering, boosting, etc., to obtain and lighting The sinusoidal alternating current that matches the load frequency and rated voltage is provided for the end users of the system.

Off grid wind solar system inverters are classified according to the scope of application:
(1) Ordinary inverter
DC 12V or 24V input, AC 220V, 50Hz output, power from 75W to 5000W, some models have AC and DC conversion that is UPS function.
(2) Inverter/charger integrated machine
In this type of inverter, users can use various forms of power supply to power the AC load: when there is AC power, use the AC power through the inverter to power the load or charge the battery; when there is no AC power, use the battery to power the AC load . It can be used in combination with various power sources: such as batteries, generators, solar panels and wind generators.
(3) Special inverter for post and telecommunications
To provide high-quality 48V inverters for post and telecommunications, its products are of good quality, high reliability, modular (module is 1KW) inverters, with N+1 redundancy function, and expandable (power from 2KW to 20KW) ).
(4) Special inverter for aviation and military
This type of inverter has 28Vdc input and can provide the following AC outputs: 26Vac, 115Vac, 230Vac, and its output frequency can be: 50Hz, 60Hz and 400Hz, and the output power ranges from 30VA to 3500VA. There are also DC-DC converters and inverters for aviation.

The classification of inverters is conducive to off grid wind solar system designers and users to identify and select inverters. In fact, inverters with the same waveform are still very different in terms of circuit principle, use of devices and control methods.
 

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