Modularized photovoltaic inverter control all-in-one machine

Abstract

The invention provides a modularized photovoltaic inverter control all-in-one machine comprising inverter modules, a central control module, a bypass external electric switch module and an outer shell. The machine is characterized by further comprising a rectification module and an upper computer communication module. The inverter modules and the rectification module are fixed at the bottom of the outer shell side by side through fixing bolts. The central control module and the upper computer communication module are fixed on the upper sides of the inverter modules and the upper side of the rectification module, the inverter modules and the central control module are correspondingly fixed, the rectification module and the upper computer communication module are fixed correspondingly, each inverter module comprises N inverter units, and N is larger than or equal to 1. A plurality of the small-capacity inverter modules are combined to take the place of a large-capacity inverter so as to improve convenience of transportation, installation and after-sale services and high supportability of inverter power supply. Meanwhile, reliability of the inverter power supply of a system is greatly improved, especially in an emergency, and the machine can at least guarantee power supply capacity of partial small-capacity inverter modules.

Description

technical field [0001] The invention relates to the field of photovoltaic power sources, in particular to a modular design inverter control integrated machine. Background technique [0002] When working in uninhabited areas such as high-altitude areas, field survey sites, and isolated islands, due to the impact of the environment, there are usually difficulties such as no electricity, less electricity, and poor communication. The current solutions mostly use diesel generators to generate electricity or solar off-grid electricity. System power supply, but diesel generator sets have difficulty in fuel delivery, high cost, high consumption, high pollution, and loud noise. In addition, it is necessary to carry multiple oil tanks or establish corresponding supply lines during the travel process, so it is no longer possible to achieve low-carbon sustainable Sustainable development requirements, while the fixed-installation wind-solar hybrid power generation system uses sustainable...

AI Technical Summary

Problems solved by technology

[0002] When working in uninhabited areas such as high-altitude areas, field survey sites, and isolated islands, due to the impact of the environment, there are usually difficulties such as no electricity, less electricity, and poor communication. The current solutions mostly use diesel generators to generate electricity or solar off-grid electricity. System power supply, but diesel generator sets have difficulty in fuel delivery, high cost, high consumption, high pollution, and loud noise. In addition, it is necessary to carry multiple oil tanks or establish corresponding supply lines during the travel process, so it is no longer possible to achieve low-carbon sustainable Sustainable development requirements, while the fixed-installation wind-solar hybrid power generation system uses sustainable clean energy to provide power, but its mobility is poor, the volume is large, and after-sales maintenance is inconvenient. Most of them will be equipped with a considerable number of energy storage batteries. Because the cost of energy storage batteries is very high, it is very uneconomical

Based on the above problems, it is found that when working in remote areas, it is necessary to overcome the problems of high cost of equipment energy storage batteries, large inverters that are not easy to transport, poor power guarantee and difficult maintenance after on-site failures

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