Water-cooled photovoltaic-photothermal power generation system output power calculation method and system

Abstract

The invention discloses a method and a system for calculating output power of a water cooling photovoltaic-solar thermal integrated power generation system based on three-dimensional trapezoidal fuzzy. The method comprises the steps of calculating a temperature reduction value of a photovoltaic power generation panel and calculating an output power increment value of the photovoltaic power generation panel; calculating a three-dimensional generalized trapezoidal fuzzy set of a multi-value fuzzy uncertainty relation of output power and sunlight intensity of a water cooling photovoltaic system, and calculating effective sunlight intensity of a predetermined region by utilizing the three-dimensional generalized trapezoidal fuzzy set; calculating generation power of the photovoltaic power generation panel of the water cooling photovoltaic system and an available high-temperature high-pressure steam quantity of the water cooling photovoltaic system; calculating an electrical efficiency increment value of a water cooling solar thermal system; calculating generation power of the water cooling solar thermal system; and calculating the output power of the water cooling photovoltaic-solar thermal integrated power generation system. The output power of the water cooling photovoltaic-solar thermal integrated power generation system can be accurately predicted, so that necessary technical support is provided for distributed new energy power generation and intelligent power grid dispatching operation.

Description

technical field [0001] The invention relates to the field of electrical technology, in particular to a method and system for calculating the output power of a water-cooled photovoltaic-photothermal integrated power generation system based on three-dimensional trapezoidal fuzzy. Background technique [0002] The distributed photovoltaic power generation system for small users such as urban residents and large user groups such as commercial buildings, communities, and industrial areas is such a system with random and fuzzy uncertain events or parameters with complex relationships and interactions. Small new energy users such as urban residents with distributed photovoltaic power generation systems and large new energy user groups such as commercial buildings, communities, and industrial areas, under the influence of various uncertain random and fuzzy events or parameters, their daily power generation will change. more random and fuzzy. In the past, the daily power generation ...

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Problems solved by technology

In practical application systems, uncertain events become more and more complex, the number of uncertain parameters is large and the relationship is complex, which greatly increases the ambiguity of events or parameters themselves and the information between each other, based on Zadeh fuzzy sets and TYPE1 The single-layer membership function method of fuzzy sets is obviously insufficient. It has been difficult to analyze and deal with these fuzzy uncertain events or parameters in the direct simulation information.

It can be seen that the existing technologies for calculating the daily output power of distributed photovoltaic power generation systems for new energy users do not fully consider the uncertainty and randomness of the influencing factors, and the applicability, practicability and applicability of the calculation methods are also difficult to satisfy.

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