Solar chimney power generation and photovoltaic power generation combined structure and varied air duct control method

Abstract

A solar chimney power generation and photovoltaic power generation combined structure and a varied air duct control method belong to the technical field of solar power generation. The solar chimney power generation and photovoltaic power generation combined structure is characterized in that radiating fins are arranged below photovoltaic components, and a wind baffle plate assembly is arranged between a heat collection shelter and a heat absorption membrane. The control method is as follows: 1, setting initial values; 2, acquiring signals; 3, judging whether Vw exceeds V3, if so, executing the step 4, and otherwise, calling for MPPT (maximum power point tracking) and executing the step 6; 4, judging whether the system output power is larger than Pe, if so, executing the step 5, and otherwise, calling for MPPT and executing the step 6; 5, judging whether Vw exceeds Vo, if so, starting braking and executing the step 6, and otherwise, calling for MPPT and executing the step 6; 6, acquiring signals; 7, judging whether the component temperature signal is lower than Ts, if so, stopping the program, and otherwise, delaying acquiring the signals and executing the step 8; 8, judging whether the temperature difference exceeds Delta, if so, then T'=T-1, theta'=theta+Delta and executing the step9, and otherwise, T'=T+1, theta'=theta-Delta and executing the step 9; 9, judging whether T' is less than 1 minute, if so, T'=1, then executing the step 10, and otherwise, keeping T' unchanged and executing the step 10; and 10, judging whether theta is less than 45 degrees, if so, keeping theta unchanged and returning to the step 2, and otherwise, enabling theta to be 45 degrees and returning to the step 2.

Description

technical field [0001] The invention belongs to the technical field of solar power generation, and in particular relates to a solar hot wind wind power generation combined with a photovoltaic power generation structure and a variable air duct control method. Background technique [0002] At present, the structure of solar thermal wind power generation adopted at home and abroad is chimney type, which includes a bracket for installing the generator assembly, and a bottom assembly installed on the base including data acquisition and control modules, energy dissipation resistors, and braking devices. , chimney shell, heat collection shed, heat storage layer, top deflector and heat absorbing film laid on the foundation, generator assembly includes base, generator, fan blades with fixed pitch angle and bearings. The main operating principle is to use the heated air in the greenhouse to generate buoyancy due to the density difference under the action of gravity. The function of th...

AI Technical Summary

Problems solved by technology

Therefore, the solar thermal wind power generation system has disadvantages such as huge investment, large area occupation, and low efficiency.

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