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A solar power generation mppt control device and method

A technology of control device and control method, which is applied in photovoltaic power generation, control/regulation system, and regulation of electrical variables, etc., can solve the problem of the contradiction between steady-state performance and dynamic performance of fixed-step algorithm, and achieve faster tracking speed and high control accuracy Effect

Active Publication Date: 2018-11-06
滨州市鑫荣生物肥业有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a solar power generation MPPT control device and method in order to solve the problem of conflicting steady-state performance and dynamic performance of the fixed-step algorithm in the prior art

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  • A solar power generation mppt control device and method
  • A solar power generation mppt control device and method

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Embodiment Construction

[0016] The present invention provides a solar power generation MPPT control device and method. In order to make the purpose, technical solution and advantages of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0017] Such as figure 1 As shown, a solar power generation MPPT control device includes a PV array, a voltage conversion unit, a voltage detection circuit, a current detection circuit, a DSP control module, a drive circuit and a display module; the voltage detection circuit and the current detection circuit are connected to the DSP control module , and respectively send the detected voltage signal and current signal to the DSP control module; the DSP control module is connected to the drive circuit, and ...

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Abstract

The invention relates to the technical field of MPPT control of solar cells in a photovoltaic system and especially relates to a device and method for MPPT control of the solar power generation. The MPPT control device of the solar power generation provided by the invention comprises a PV array, a voltage conversion unit, a voltage detection circuit, a current detection circuit, a DSP control module, a drive circuit and a display module. The invention also provides a MPPT control method for the solar power generation, wherein the problem of contradiction between steady-state performance and dynamic performance of a fixed step length algorithm is solved; and in comparison with a traditional variant step length algorithm, a working point can be moved to a maximum power point more quickly, and thus the tracking speed is quicker and control accuracy is high.

Description

technical field [0001] The invention relates to the technical field of maximum power point tracking control of solar cells in a photovoltaic system, in particular to a solar power generation MPPT control device and method. Background technique [0002] The problem of energy supply and demand is becoming more and more serious. In order to improve the global environment, people pay more and more attention to the development and utilization of new energy, especially the utilization of renewable energy. Solar energy, as a new type of green energy, can solve the energy crisis caused by the exhaustion of conventional energy sources, and has attracted widespread attention at home and abroad. Photovoltaic power generation is one of the main forms of utilizing solar energy at present. The output characteristics of photovoltaic cells have strong nonlinear characteristics. Its output power is not only related to the internal characteristics of photovoltaic cells, but also affected by ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/67
CPCG05F1/67Y02E10/56
Inventor 何金昌李福山简锦秀
Owner 滨州市鑫荣生物肥业有限公司