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Simple distributed inverter parallel cophase control device

An inverter and distributed technology, which is applied in the field of distributed inverter parallel in-phase control devices, can solve problems such as circulating currents and burning inverters

Inactive Publication Date: 2019-06-28
CHANGSHA UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Phase deviation may cause circulating current or even burn the inverter

Method used

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  • Simple distributed inverter parallel cophase control device

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Embodiment Construction

[0009] Such as figure 1 As shown, a simple parallel in-phase control device for distributed inverters is characterized in that: each distributed inverter includes a timing module. The output of each distributed inverter is mounted on the same main power supply line. The timing module can use the Beidou timing system to synchronize the timing, thereby synchronizing the clock of each inverter controller, thereby easily achieving synchronization of the output phase of each inverter.

[0010] Although the present invention has been described with a relatively limited number of embodiments, those skilled in the art who benefit from this disclosure will understand the various modifications and changes resulting therefrom. The appended claims are intended to cover such modifications and changes that fall within the true spirit and scope of the present invention.

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Abstract

The invention discloses a simple distributed inverter parallel cophase control device. Distributed inverters are mounted on the same power supply bus, each inverter comprises a timing module to ensurethe output of multiple inverters are cophase, and therefore, the control implementation of a plurality of distributed inverters mounted on the same power bus is simplified.

Description

Technical field [0001] The invention mainly relates to a simple parallel in-phase control device for distributed inverters. Background technique [0002] Due to the inconvenience of setting up power grids in remote areas, providing lighting and electricity for hundreds of millions of people in remote areas is a common concern of the world. It is an optional way to supply power to the load by collecting environmental energy, such as solar, wind, and thermal energy. For example, photovoltaic power generation devices distributed in different locations can be connected in parallel on the same bus to supply power to users to enhance power generation. The inverter can convert the original direct current output by the photovoltaic panel into the alternating current required by the user. The parallel connection of multiple inverters must solve the problem that the output AC energy of these inverters has the same amplitude, frequency, and phase. The key lies in the same phase. The phas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/42
Inventor 吴了郭苗苗郭晨睿
Owner CHANGSHA UNIVERSITY