In the realm of renewable energy and sustainable power solutions, inverters play a pivotal role in converting direct current (DC) generated by solar panels or wind turbines into alternating current (AC) for use in homes, businesses, and industries. Two primary types of inverters dominate this landscape: on-grid inverters and off-grid inverters. Each serves distinct purposes and operates within different contexts. Inverter.com will introduce on-grid inverters and off-grid inverters, and discuss the working principles of off-grid inverters and on-grid inverters, as well as their differences.
Inverter is commonly used in the industrial field and its main function is to convert the current in a certain way. Transformer is a device that can change the AC voltage based on the electromagnetic induction principle. It is mainly composed of primary coil, secondary coil and iron core (magnetic core). To make it easier to understand the inverter, hereby the difference between inverter and transformer will be discussed.
Inverter is a device that can convert DC (direct current, such as storage battery) into AC (alternating current/mains), which is widely used in air conditioners, computers, lighting and other electrical appliances. Especially on traveling or working, inverter can generate alternating current by being connected with batteries, so as to supply power for the instruments or electrical appliances requiring alternating current for use.
It is very easy to change alternating current (AC) into direct current (DC), and with only a diode, the simplest rectifier circuit can be formed. However, it is not that simple to change direct current to alternating current. The magnitude and direction of alternating current will change periodically over time. The mains power we use shows regular changes of sine function.
In modern society, a continuous power supply is essential for maintaining the normal operation of homes, businesses, and industries. As energy demand grows and technology advances, generators, and inverters have become crucial power devices. Although both have their advantages, many people still wonder about the differences between the two. Inverter.com will explore the principles, working mechanisms, applications, and key factors to consider when choosing between generators and inverters, helping readers better understand the fundamental distinctions between these two devices.
In the solar off-grid system, the photovoltaic controller is to store the electricity generated by the photovoltaic module in the storage battery after transformation. In addition, it also has the functions of protecting the storage battery and preventing the battery from overcharging. At present, there are two main technical routes of the solar charge controller: Maximum power point tracking (MPPT) and pulse width modulation (PWM), both of which have its advantages and disadvantages, so users can select according to different scenarios.
Central inverter: The power is between 100kW and 2500kW. With the development of power electronics technology, the string inverter is having an increasingly bigger market, and the central inverters below 500KW have already basically been eliminated from the market. The power device adopts high-current IGBT. The system topology adopts DC-AC first-level power electronic device to transform the full-bridge inverter. The latter stage is generally connected to the double-split power-frequency boost isolation transformer. The protection level is generally IP20. It has a large size and is vertically installed indoor.
Power inverters can be mainly divided into two types according to waveforms: pure sine wave inverter and modified sine wave inverter. When it comes to choosing the right inverter for your needs, understanding the differences between pure sine wave and modified sine wave inverters is crucial. These devices are essential for converting direct current (DC) to alternating current (AC), which powers most household appliances. This article will discuss in detail the difference between pure sine wave and modified sine wave inverter.
