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Title:
MAXIMUM POWER POINT TRACKING METHOD AND DEVICE FOR PHOTOVOLTAIC CELL AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2020/024464
Kind Code:
A1
Abstract:
A Maximum Power Point Tracking (MPPT) method and device for a photovoltaic cell and a storage medium. The MPPT method for the photovoltaic cell comprises: obtaining multiple power points respectively corresponding to different duty ratios of an MPPT controller, and finding a first duty ratio corresponding to a power point having the maximum value in the multiple power points (S102); tracking a first maximum power point of the photovoltaic cell in a single peak way by using the first duty ratio as an initial value, wherein the first maximum power point is used as the maximum power value of the photovoltaic cell (S104); and after tracking of the first maximum power point, determining continually tracking in the single peak way according to predetermined conditions to obtain a second maximum power point, or starting to execute again from the first step, wherein the predetermined conditions comprise at least one of the following: time and power change amplitudes (S106). According to the MPPT method and device for the photovoltaic cell and the storage medium, the technical problem in the related art that the changed maximum power point of the photovoltaic cell cannot be accurately tracked is solved.

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Inventors:
SU HAIXIA (CN)
Application Number:
PCT/CN2018/112193
Publication Date:
February 06, 2020
Filing Date:
October 26, 2018
Export Citation:
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Assignee:
SHENZHEN YONGSHENGLONG TECH CO LTD (CN)
International Classes:
G05F1/67
Domestic Patent References:
WO2017187409A12017-11-02
Foreign References:
CN107247475A2017-10-13
CN107247475A2017-10-13
CN105892552A2016-08-24
CN102638061A2012-08-15
CN102638061A2012-08-15
CN106444956A2017-02-22
Attorney, Agent or Firm:
BEIJING HARTEND INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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