Photovoltaic power module
A photovoltaic power supply and photovoltaic module technology, which is applied in photovoltaic power generation, electrical components, and regulation of electrical variables, can solve problems such as inability to meet the needs of power conversion, and achieve the effect of improving utilization efficiency
Active Publication Date: 2018-04-10
无锡隆玛科技股份有限公司
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In the traditional power topology, the withstand voltage of the MOS tube is generally 1000V. Therefore, the existing photovoltaic power supply can no longer meet the needs of power conversion.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0016] The present invention will be further described below in conjunction with specific drawings and embodiments.
[0017] like figure 1 Shown: In order to meet the requirements of the existing photovoltaic system from 1500V to 24V and improve the utilization efficiency of photovoltaic power, the present invention includes a main transformer circuit 2 for converting the voltage generated by photovoltaic modules and a main transformer circuit 2 for An isolated sampling circuit 3 for sampling the output voltage, the isolated sampling circuit 3 is connected to a DC / DC control circuit 5 for generating a PWM signal, and the DC / DC control circuit 5 is connected to the main transformer circuit 2 through a pulse transformer circuit 4 ;
[0018] The isolated sampling circuit 3 transmits the output voltage of the main transformer circuit 2 to the DC / DC control circuit 5, the DC / DC control circuit 5 generates a PWM control signal according to the output voltage transmitted by the isol...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a photovoltaic power supply module. It includes a main transformer circuit and an isolated sampling circuit, the isolated sampling circuit is connected to a DC / DC control circuit for generating PWM signals, and the DC / DC control circuit is connected to the main transformer circuit through a pulse transformer circuit; the isolated sampling circuit is connected to the main transformer circuit. The DC / DC control circuit transmits the output voltage of the main transformer circuit, the DC / DC control circuit generates a PWM control signal according to the output voltage transmitted by the isolated sampling circuit, and the pulse transformer circuit generates the required PWM according to the PWM control signal generated by the DC / DC control circuit The switch drive signal is used to adjust the working state of the main transformer circuit through the PWM switch drive signal. The invention has a compact structure, can meet the requirement of converting the existing photovoltaic system from 1500V to 24V, improves the utilization efficiency of the photovoltaic power supply, and is safe and reliable.
Description
technical field [0001] The invention relates to a power circuit, in particular to a photovoltaic power module. Background technique [0002] In the photovoltaic system, the photovoltaic modules are all single-sided, and the maximum voltage after the string is 1000V. But with the double-sided of the photovoltaic module, its utilization rate has increased by 3%, and the power supply of the solar module has increased to 1500V. In this way, the 24V power supply for the power generation system needs to be converted from 1500v to 24v. In the traditional power topology, the withstand voltage of the MOS tube is generally 1000V. Therefore, the existing photovoltaic power supply can no longer meet the needs of power conversion. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a photovoltaic power supply module with a compact structure, which can meet the requirements of the existing photovoltaic s...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/335
CPCY02E10/56
Inventor 杨朝辉吴庆彬
Owner 无锡隆玛科技股份有限公司