With the increasing global emphasis on renewable energy, solar energy, as one of the most popular clean energy sources, is constantly advancing and improving its application technology. In solar power systems, inverters are the key components responsible for converting the DC power generated by solar panels into AC power to meet the needs of domestic, commercial, and even industrial power consumption. Among them, hybrid inverters and on-grid inverters are the two mainstream types, each with unique advantages and applicable scenarios. So what is the difference between hybrid inverters and on-grid inverters?
What is On Grid Inverter?
Monday, December 18, 2023
With the rapid development of renewable energy sources, solar photovoltaic (PV) power systems have become a popular choice in the clean energy sector. The on-grid inverter is a crucial component in solar power systems, playing a key role in converting solar power into alternating current (AC) that can be used in power networks. The inverter store will provide an in-depth look at how grid-connected inverters work, their application areas, and technology trends to help readers better understand this technological component that plays an important role in the clean energy transition.
A grid-tie inverter (on grid inverter) converts direct current (DC) into an alternating current (AC) suitable for injecting into an electrical power grid, normally 120 V RMS at 60 Hz or 240 V RMS at 50 Hz. Grid-tie inverters are used between local electrical power generators: solar panel, wind turbine, hydro-electric, and the grid.
A grid tie inverter (GTI for short) also called on-grid inverter, which is a special inverter. In addition to converting direct current into alternating current, the output alternating current can be synchronized with the frequency and phase of the mains. Can go back to mains. Grid tied pv inverters are commonly used in applications where some DC voltage sources (such as solar panels or small wind turbines) are connected to the grid. This article delves into the basics, working principle, and function of on grid inverters, highlighting their significance in modern solar power systems.
Solar inverter is the core power conditioning device of photovoltaic system, which accounts for 10-15% of system cost, and has high technical content. Solar inverter converts the direct current generated by solar cells into alternating current energy that can be directly integrated into the grid and load through power electronic conversion technology. However, what is the difference between a grid tied inverter and a micro inverter?
On grid inverter or grid tie inverter from Inverter.com, can convert direct current into alternating current. Its AC output can synchronize with the frequency and phase of mains supply. On grid inverters are commonly used in applications where direct current voltage sources are connected to the grid, such as solar panels and small wind turbines. The output voltage frequency of the solar grid tie inverter needs to be same as the grid frequency (50 Hz or 60 Hz). A MPU in the grid tie inverter can sense the AC waveform of the power grid and generate voltage back to the power grid based on the waveform.
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.
As the energy constraint becomes increasingly evident, the solar PV power generation system attracts growing attention. The direct current generated by solar cells and wind-powered generators should be inverted by inverters before being combined to the grid. Therefore, the design of solar on grid inverters determines whether the solar PV system will operate reasonably, efficiently, and economically. The control circuit, signal gathering circuit, and the switching tube drive circuit of solar on grid inverters need different adaptive power supplies. Thus an independent power supply should be provided for powering these circuits. The voltages of the designed auxiliary power supplies include +15V, -15V, and +5V. A single-ended flyback DC/DC topographical structure is adopted, with stable and reliable operation.
In order to install photovoltaic solar system in your building, you need to choose in between 2 main solar system types: On Grid and Off Grid. Which one will be the most technically suitable and cost effective as well? As an one-top online shop, inverter.com provides full range of solar inverter products to customers worldwide. On grid inverters, off grid inverters, micro inverters could be found in our shop.
What is the on-grid inverter data sheet? It's a sheet shows the on-grid inverter specs, so can judge if the inverter can be used in our system or not. It's an important matter to be able to read the sheet and understand it before buying the on grid inverter.
It's a solar system that is connected and synchronized with the power grid. So, the electrical load will be fed from both sources which share to each other in feeding it.
In cloudy days or at night where the solar system generation is low or even is not exist, the electrical load takes its power requirements from the power grid. And in sunny days where solar generation exceeds load power requirement, the load take all its power requirement form the solar system and surplus solar generated electricity will go to the power grid to be used elsewhere.
The on-grid inverter must match grid sine wave phase and voltage, so can inject the AC current into it. The most important feature of such inverter is its ability to work without batteries, it based on solar panels or wind turbine and power grid presence only, so if the solar energy or wind energy are not sufficient to feed the load, it consumes his power requirements from the power grid.
Today we will introduce a home solar power system design below 10kW, which is installed on the roof of the house and connected to the grid of 220V or 380V. The maximum installation capacity is 25% of the capacity of the upper-level transformer. First of all, it is required to determine whether the load capacity of the roof can meet the requirements. The loading requirements of the solar power system equipment for the roof are greater than 30kg/m2.
As to the photovoltaic grid-tie inverter, the input end is connected to the photovoltaic component and the output end is connected to the power grid. The component has only positive and negative poles, and it is not easy to wire incorrectly. Since the component is a certain distance away from the inverter, it is required to add an extension cable. The correct connection method is that the photovoltaic connector has a female connector on one side and a male connector on the other side, so that the positive and negative directions will not change. However, some green hands will also make the two connectors of the extension cable the same. If the power inverter is connected, the positive and negative poles will be reversed.
