All-digital control photovoltaic module simulator and control method thereof

An analog device, technology for controlling light
CN104065265AActive Publication Date: 2014-09-24YANGZHOU UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
YANGZHOU UNIV
Publication Date
2014-09-24

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Abstract

The invention discloses an all-digital control photovoltaic module simulator and a control method of the all-digital control photovoltaic module simulator. The all-digital control photovoltaic module simulator comprises a main circuit, a control circuit, a digital signal controller dsPIC33FJ64GS606 and an auxiliary power supply. The main circuit mainly comprises a synchronous buck converter and an overcurrent and overvoltage protection circuit. The control circuit comprises a current measuring and conditioning circuit, a voltage measuring and conditioning circuit and an MOSFET driving circuit. The all-digital control photovoltaic module simulator and the control method of the all-digital control photovoltaic module simulator solve the working condition problems of short circuit and open circuit of a system and the problems of load sudden change transient overcurrent and overvoltage, improve reliability and safety of the working process of the circuits, prolong the service life of the circuits, lower maintenance cost, and can be used for simulating a solar panel.
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Description

technical field

[0001] The invention relates to a photovoltaic battery, in particular to a photovoltaic battery simulation device. Background technique

[0002] A document about a solar analog power supply is disclosed in the prior art, the title of the article is: "Research on Novel Digital Photovoltaic Array Simulator", the title of the journal is: International Conference on Intelligent Computation Technology and Automation, date of publication: May 2010, specific chapters Location: vol. 2, pp. 1077-1080 , Authors: Z.Housheng and Z. Yanlei. This paper adopts BUCK converter for analog power supply design, adopts digital control method and quadratic polynomial fitting algorithm. The problem of adopting this structure is: 1. The working condition of the system in the case of open circuit and short circuit is not considered to take corresponding control and protection measures; 2. There is no control function for output overcurrent and overvoltage in the transient state of lo...

Claims

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