Method for querying inverters by integrated controller in distributed multi-inverter system

A centralized controller and multi-inverter technology, applied in the direction of instruments, special data processing applications, electrical digital data processing, etc., can solve the problems of inability to find inverters, cumbersome and inconvenient, etc., and achieve mutual communication interference, system Easy to install and ensure stable working effect

Active Publication Date: 2013-02-20
ALTENERGY POWER SYST
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  • Claims
  • Application Information

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Problems solved by technology

The problems of this mode include: 1. It is cumbersome and inconvenient, especially when the system is large; 2. The input number is the number of the external label of the inverter, in case the number programmed inside the inverter is different from the external label number , the inverter cannot be found

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  • Method for querying inverters by integrated controller in distributed multi-inverter system

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with specific embodiment and accompanying drawing, set forth more details in the following description so as to fully understand the present invention, but the present invention can be implemented in many other modes different from this description obviously, Those skilled in the art can make similar promotions and deductions based on actual application situations without violating the connotation of the present invention, so the content of this specific embodiment should not limit the protection scope of the present invention.

[0022] Generally speaking, the methods for the centralized controller to query each inverter include automatic query and acquisition, manual input number query and acquisition, or a combination of the two. In the mode of automatic number query, the centralized controller receives the number signal sent by the inverter and records it as the number of the inverter in the system. ...

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Abstract

The invention provides a method for querying inverters in a distributed multi-inverter system. The method comprises the following steps of: A, querying numbers of the inverters in the system automatically; B, transmitting number signals of the inverters to the integrated controller by the inverters; C, receiving the number signals by the integrated controller, and recording the signals in a number library; D, judging whether the numbers of all the inverters in the system are found, and if so, jumping to the step F; E, if the integrated controller does not find the numbers of all the inverters, manually inputting the missing inverter numbers into the integrated controller, and adding the missing inverter numbers into the number library, and if the integrated controller finds numbers of inverters which do not belong to the system, manually deleting the redundant inverter numbers from the number library of the integrated controller; and F, automatically memorizing all the inverter numbers, and converting to a manual query mode. The method facilitates the integrated controller to establish communication with all the converters in the system conveniently without disturbing communication of other systems.

Description

technical field [0001] The present invention relates to the technical field of distributed power generation systems. Specifically, the present invention relates to a method for a centralized controller in a distributed multi-inverter system to query inverters. Background technique [0002] The communicator (centralized controller) is a data acquisition and operation control of each independent inverter through power line carrier communication (PLC) or wireless such as Zigbee, WiFi, or other wired connections (RS232, RS485, CAN, etc.) device. [0003] At present, the photovoltaic micro-inverter system uses a communicator to collect data and control the inverter. There is a communication module and a serial number inside the inverter, and the communicator has a communication module. Each inverter has a number, and the communicator needs to obtain the number to establish communication with each inverter. Usually, the automatic query mode is adopted, that is, the communicator ...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 罗宇浩
Owner ALTENERGY POWER SYST
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