What is a Grid tie Solar PV System?
A grid tie solar PV system is a power generation system that converts solar energy into electrical energy and directly connects it to the public power grid.
The following is a detailed introduction to the grid tie solar PV system, which mainly includes three aspects:
The grid tie solar PV system mainly consists of the following parts:
(1) Solar panels: also known as photovoltaic panels, are the core part of the system. It converts solar energy into DC power and is the source of power generation.
(2) Solar micro inverter: The function of the inverter is to convert the DC power generated by the solar panel into AC power to meet the requirements of the public power grid. This is the key equipment to achieve the grid tie function.
(3) AC distribution cabinet: mainly used to connect the AC power output by the inverter to the public power grid and measure the power value.
(4) Lightning protection combiner box and DC lightning protection distribution cabinet: These devices are used to combine and protect the power generated by the solar panels to ensure the safe and stable operation of the system.
The working principle of On-Grid solar photovoltaic system is relatively simple and clear:
Solar panels receive sunlight and generate DC power.
DC power is combined and protected by lightning protection junction box and DC lightning protection distribution cabinet.
The inverter converts DC power into AC power.
The AC distribution cabinet connects the AC power output by the inverter to the public power grid.
On-Grid solar photovoltaic system can be divided into two types: centralized On-Grid and decentralized grid-connected:
(1) Centralized On-Grid: The generated power is directly transmitted to the large power grid, which is uniformly allocated by the large power grid to supply power to users. This method is suitable for large photovoltaic power stations, which are usually far away from the load point.
(2) Decentralized On-Grid: The generated power is directly distributed to the power load, and the excess or insufficient power is adjusted by connecting to the large power grid. This method is suitable for small-scale photovoltaic power generation systems, usually urban photovoltaic power generation systems.
In summary, the On-Grid solar photovoltaic system is an efficient and environmentally friendly way of generating electricity, which has broad application prospects and development space.
