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Multi-output-mode inverter and control method thereof

A control method and multi-output technology, which are used in output power conversion devices, conversion of AC power input to DC power output, wind power generation, etc., can solve the problems of complex structure and single output mode of the inverter, and achieve simple control methods , Wide application range, simple structure effect

Active Publication Date: 2022-07-05
深圳鹏城新能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of this application is to provide a multi-output mode inverter and its control method, aiming to solve the problem of single output mode and complex structure of the inverter in the prior art

Method used

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  • Multi-output-mode inverter and control method thereof
  • Multi-output-mode inverter and control method thereof
  • Multi-output-mode inverter and control method thereof

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Embodiment Construction

[0023] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

[0024] like figure 1 As shown, a multi-output mode inverter provided by an embodiment of the present application includes an inverter circuit 1 and a control circuit (not shown in the figure). The input end of the inverter circuit is connected to the DC power supply 2, and the output end is connected to the power grid 3. The inverter circuit 1 includes at least three inductors (L1, L2, L3) and the A bridge arm, B bridge arm, C bridge connected in parallel. Bridge arms, each bridge arm is composed of two IGBT switches connected in series and connected to the grid 3 thr...

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Abstract

The invention is suitable for the field of power electronics, and provides a multi-output-mode inverter and a control method thereof, and the multi-output-mode inverter comprises an inverter circuit and a control circuit. The input end of the inverter circuit is connected with a direct-current power supply, the output end of the inverter circuit is connected with a power grid, the inverter circuit comprises at least three inductors, a bridge arm A, a bridge arm B and a bridge arm C, the bridge arm A, the bridge arm B and the bridge arm C are connected in parallel, and each bridge arm is formed by connecting two IGBT switches in series and is connected to the power grid through at least one inductor. And the control circuit is respectively connected with the inverter circuit and the power grid, and is used for detecting the type of the power grid and controlling the inverter circuit to switch an output mode according to the type of the power grid. Three-phase power, two-phase power or single-phase power corresponding to different power grids is output by controlling the output of different bridge arms, the structure and the control mode are simple, and the system is suitable for grid-connected connection of distributed power generation systems of various scales.

Description

technical field [0001] The present application belongs to the technical field of power electronics, and in particular, relates to a multi-output mode inverter and a control method thereof. Background technique [0002] With the development of science and technology and the diversification of users' electricity demand, more and more distributed power generation systems have emerged, such as photovoltaic power generation and wind power generation. On the one hand, it can meet the diversified electricity demand of users. On the other hand, the generated electricity can also be sent to the national power grid system, and become the power supply supplement of the power grid during grid failure or peak power consumption to ensure the stable power supply of the power grid. . However, most distributed power generation systems emit DC power, such as photovoltaic power generation, which is the most common in my country, and AC power is used for power transmission in the power grid. T...

Claims

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Application Information

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IPC IPC(8): H02M1/10H02M7/5387H02M7/487H02M1/12H02J3/38
CPCH02M1/10H02M7/53871H02M7/487H02M1/12H02J3/381Y02E10/76
Inventor 李晓锋王进凌家树丁晓飞黄成
Owner 深圳鹏城新能科技有限公司
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