Method for multi-machine frequency converter generating synchronization signal, and multi-machine frequency converter

A technology of synchronous signal and frequency converter, applied in the multi-machine frequency converter to generate synchronous signal, and the multi-machine frequency converter field, can solve the problems of poor synchronization performance and so on.

Inactive Publication Date: 2016-05-25
SHENZHEN INVT ELECTRIC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the process of research and practice, the inventor found that, since multiple single-machine inverters are connected to achieve parallel

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  • Method for multi-machine frequency converter generating synchronization signal, and multi-machine frequency converter
  • Method for multi-machine frequency converter generating synchronization signal, and multi-machine frequency converter
  • Method for multi-machine frequency converter generating synchronization signal, and multi-machine frequency converter

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] Embodiments of the present invention provide a method for generating a synchronous signal by a multi-machine frequency converter and a multi-machine frequency converter, in order to improve the synchronous operation performance of the frequency converters.

[0033] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clea...

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Abstract

Provided are a method for a multi-machine frequency converter generating a synchronization signal, and a multi-machine frequency converter. Provided is a method for a multi-machine frequency converter generating a synchronization signal; said multi-machine frequency converter comprises a master control unit and M1 controllable execution units requiring synchronization; the M1 execution units share a common DC bus, and M1 is an integer greater than 1; the master control unit initializes the relevant parameters of the M1 execution units, and said parameter initialization comprises initializing each system clock and the distributed clocks synchronized by a selected reference clock; after the parameters are initialized, the master control unit sends the initialization data to the M1 execution units, configures an associated register used for synchronized data transmission, and activates the synchronized clock unit of the execution unit, causing the execution unit to generate a synchronization signal. The solution provided by the embodiments of the present invention is conducive to improving the synchronized operation of multi-machine frequency converters.

Description

technical field [0001] The invention mainly relates to the technical field of power electronics, in particular to a method for generating a synchronous signal by a multi-machine frequency converter and the multi-machine frequency converter. Background technique [0002] At present, most inverters on the market are stand-alone inverters, which use a control unit to directly control an inverter unit. The control unit generally does not control the rectification unit. The specific structure can be as follows: Figure 1-a shown. [0003] The stand-alone inverters need to run in parallel synchronously (that is, the speed / torque of the load motors of at least two stand-alone inverters is the same or corresponding, or the outputs of at least two stand-alone inverters are connected in parallel with load motors or asynchronously to realize the factory macro) At the same time, at least two single-machine inverters form an inverter multi-machine system, and the communication between ea...

Claims

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Application Information

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IPC IPC(8): G05B19/04H02M1/00
CPCG05B19/04H02J3/40
Inventor 柯冬生
Owner SHENZHEN INVT ELECTRIC
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