Unlock instant, AI-driven research and patent intelligence for your innovation.

Solar energy optimization system

A solar energy and optimizer technology, applied in photovoltaic power generation, AC network circuits, electrical components, etc., can solve problems such as reducing system efficiency and reliability, increasing system complexity, and increasing the number of components, reducing the number of components, The effect of reducing system cost and increasing reliability

Inactive Publication Date: 2018-02-16
GOODWE TECHNOLOGIES CO LTD
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the number of components in the entire system increases, which increases the complexity of the system, brings a substantial increase in cost, and reduces the efficiency and reliability of the system.

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Solar energy optimization system
  • Solar energy optimization system
  • Solar energy optimization system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment one: as attached figure 1 As shown, the solar power generation system includes n pieces (n is a positive integer) of photovoltaic panels PV1 to PVn and an inverter circuit connected to the photovoltaic panels, and the inverter circuit is connected to the grid AC. A solar energy optimization system connected between n photovoltaic panels and an inverter circuit, including filter inductor L and n optimizers.

[0020] The n optimizers are connected to the n photovoltaic panels PV in one-to-one correspondence, so as to perform MPPT tracking on the corresponding photovoltaic panels PnV. Each optimizer includes a capacitor, a first transistor and a second transistor. Each optimizer is respectively optimizer 1, optimizer 2, ..., optimizer n, the capacitors in each optimizer are respectively C1, C2, ..., Cn, and the first transistors in each optimizer are respectively Q1A, Q2A, ... , QnA, and the second transistors in each optimizer are respectively Q1B, Q2B, . . ....

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

No PUM Login to View More

Abstract

The invention relates to a solar energy optimization system which is connected between n photovoltaic panels and an inverter circuit. The solar energy optimization system comprises a filter inductor,and n optimizers which are connected with the photovoltaic panels in one-to-one correspondence to carry out MPPT tracking on the corresponding photovoltaic panels. The optimizers are connected in series, are connected in series with the filter inductor, and are connected with the inverter circuit. Each optimizer comprises an access capacitor, a first transistor and a second transistor. Each accesscapacitor is connected in parallel between the positive and negative electrodes of a photovoltaic panel. One end of each first transistor is connected with the positive electrode of a photovoltaic panel, and the other end of the first transistor forms the positive output end of the optimizer and is connected with one end of a second transistor. The other end of the second transistor is connectedwith the negative electrode of the photovoltaic panel and forms the negative output end of the optimizer. According to the invention, the number of components of a topology circuit can be reduced; thereliability of the system is improved; the system efficiency is improved; the system volume is reduced; and the system cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of power conversion, is applied to the photovoltaic power generation industry, and relates to a device for performing MPPT tracking (maximum power point tracking) on ​​solar photovoltaic panels. Background technique [0002] The current mainstream photovoltaic power generation system is to connect multiple photovoltaic panels in series with high voltage, and then use the Boost circuit to track the maximum power point of the photovoltaic panels and realize the boosting effect. This solution requires high consistency of photovoltaic panel parameters, and the installation orientation of the panels must be consistent, which will have certain restrictions in certain application occasions. [0003] Based on this application, an optimizer solution has been launched on the market. An optimizer is connected behind each photovoltaic panel to realize the maximum power tracking of each panel, so that the panels are no l...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38
CPCH02J3/385Y02E10/56
Inventor 万建黄敏方刚卢进军刘滔
Owner GOODWE TECHNOLOGIES CO LTD