N-dimensional trapezoidal fuzzy set method and device for calculating output power of photovoltaic-photothermal integration system

Abstract

The embodiment of the invention discloses a n-dimensional trapezoidal fuzzy set method and device for calculating the output power of a photovoltaic-photothermal integration system, which are used for solving technical problems in the prior art that calculation for the daily generating capacity of a new energy distributed photovoltaic power generation system does not comprehensively consider the uncertainty and randomness of influence factors and that the applicability and the practicability of the calculation method are difficult to be met. The method disclosed by the embodiment of the invention comprises the steps of introducing a generalized n-dimensional trapezoidal fuzzy set concept and a calculation method thereof when the sunshine intensity, the sunshine duration, the sunshine shadow and the sunshine inclination angle are considered, assuming that parameters such as the sunshine intensity, the sunshine duration, the sunshine shadow and the sunshine inclination angle and an energy storage and charging event of a user battery all obey a generalized n-dimensional trapezoidal fuzzy distribution law, and calculating the daily generating capacity of the new energy user distributed photovoltaic power generation system on the basis of fuzzy probability analysis.

Description

technical field [0001] The invention relates to the technical field of power systems and automation thereof, in particular to an n-dimensional trapezoidal fuzzy set method and device for calculating the output power of a photovoltaic-photothermal integrated system. Background technique [0002] The development of solar distributed power generation systems is the development trend of smart cities. Photovoltaic power generation and solar thermal power generation are two different forms of solar power generation. In recent years, photovoltaic-photothermal integrated distributed power generation system has become the mainstream direction of development and the subject of research hotspots. [0003] The principle of photovoltaic power generation is to use the temperature difference of semiconductor or metal materials such as vacuum devices, alkali metals, and magnetic fluids to directly convert solar heat into electrical energy to achieve power generation. The principle of photo...

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Problems solved by technology

[0012] The embodiment of the present invention provides an n-dimensional trapezoidal fuzzy set method and device for calculating the output power of a photovoltaic-photothermal integrated system, which solves the problem that the calculation of the daily power generation...

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