A distributed photovoltaic energy storage charging pile

Abstract

The invention discloses a distributed type photovoltaic energy storage charging pile. The distributed type photovoltaic energy storage charging pile comprises a photovoltaic panel, a photovoltaic converter, an inversion device, a battery module, a DC bus, and a detection module, wherein the photovoltaic converter, the inversion device and the battery module are all connected with the DC bus; the photovoltaic panel is connected with the photovoltaic converter; the photovoltaic converter is connected with the power module and the inversion device; the inversion device is provided with an inverter and a rectifier, is externally connected with a mains supply AC bypass and a charging gun, and has the characteristic of two-way current inversion; the battery module is provided with a battery and a battery detection device, and is connected with the inversion device; the detection module is connected with the battery module and the inversion device. The battery can be charged through the photovoltaic converter, or can be rectified and charged through the inversion device; when the battery needs to be discharged, AC can be output through inversion of the inverter for charging of an electric vehicle, so that the power consumption pressure caused by massive uses of the charging pile during peak hours can be alleviated, and the cost can be lowered.

Description

【Technical Field】 [0001] The invention relates to the technical field of photovoltaic energy storage and charging, in particular to a distributed photovoltaic energy storage charging pile. 【Background technique】 [0002] With the popularization of new energy and low-carbon concepts, the acceptance of pure electric vehicles in people's lives is increasing. More and more small electric vehicles are purchased and used by people, and the accompanying supporting facilities become more and more in people’s lives. We will find a large number of small AC charging piles appearing next to the parking spaces in various power-consuming areas. The charging demand of electric vehicles can be met in the short term. However, as a large number of subsequently added AC charging piles are installed in the parking lot of the electricity consumption area, the problem cannot be exposed in a short period of time because the piles will not be used in large quantities. Once the newly installed charging ...

AI Technical Summary

Problems solved by technology

However, as a large number of AC charging piles added later are installed in the parking lot of the power consumption area, in a short period of time, because the piles will not be used in large quantities, the problem cannot be exposed. Once the newly installed charging piles are used in large quantities, it is bound to affect the power consumption area The distribution network will cause a huge impact, and the severe one will directly lead to the paralysis of the power grid

Considering the use of so many charging piles, in order to meet their power supply needs, the distribution cables must be designed in a matching manner, and the resulting cost will be a huge pressure

Images