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PID-based power tracking method and system for MPPT controller

A tracking system and controller technology, which is applied in the direction of control/regulation system, instrument, and regulation of electrical variables, etc., can solve problems such as being susceptible to external interference, slow tracking speed, and unable to track the maximum output power.

Active Publication Date: 2021-02-26
ECOFLOW TECH LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This involves the optimization of the MPPT algorithm. The traditional optimization method uses a constant voltage, but this method needs to measure the maximum output power of the solar panel in advance, and requires a specific solar panel and the corresponding system to maintain the maximum output power.
There is also a method of using disturbance observation, but the tracking speed of this method is very slow and is susceptible to external interference
There is also a method of increasing conductance, but this method is susceptible to external interference and there is a situation where the maximum output power cannot be tracked

Method used

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  • PID-based power tracking method and system for MPPT controller
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  • PID-based power tracking method and system for MPPT controller

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Embodiment Construction

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0034] It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0035] It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and oth...

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Abstract

Provided is a PID-based power tracking method for an MPPT controller. Input power is processed by a conductivity method and then output to a power loop, and a feedback signal is added to each loop andis a feedback signal of the output end of an MPPT controller, so that the power loop, a voltage loop and a current loop can obtain the feedback signal, PID control processing is further carried out,the signals of the output ends of the power loop, the voltage loop and the current loop can be corrected to the maximum extent, and the maximum output power of the MPPT controller can be directly, quickly and stably tracked without measuring a target voltage point of the maximum output power of the MPPT controller in advance under the condition. In addition, the invention further provides a PID-based power tracking system for an MPPT controller.

Description

technical field [0001] The present application belongs to the technical field of MPPT controller power tracking, and in particular relates to a PID-based MPPT controller power tracking method and system for fast and stable tracking to maximum output power without measuring voltage points. Background technique [0002] At present, when charging with solar energy outdoors, it is necessary to charge the energy storage device quickly. Therefore, it is necessary to convert solar energy into electrical energy to the maximum extent and output it to the energy storage device. This involves the optimization of the MPPT algorithm. The traditional optimization method uses a constant voltage, but this method needs to measure the maximum output power of the solar panel in advance, and a specific solar panel and the corresponding system can maintain the maximum output power. There is also a method of using disturbance observation, but the tracking speed of this method is very slow and is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/67
CPCG05F1/67
Inventor 陈熙王雷
Owner ECOFLOW TECH LTD