Solar multi-directional tracking photovoltaic system

Abstract

The invention discloses a solar multi-directional tracking photovoltaic system. In the system, a group of solar optical mirrors consisting of a plurality of reflecting mirrors, a Fresnel mirror, and a plane mirror are adopted; a revolving shaft of each mirror is arranged on a solar mirror support of different shapes; each optical solar mirror can rotate around the shaft, and meanwhile the solar mirror support can move, so that the multi-directional tracking that the solar mirror rotates around a starting shaft and moves together with the solar mirror support is realized; as the multi-directional tracking reduces the difficulty in homotaxial tracking, the range of the focused cylinder area is reduced, and the focusing multiple and the using temperature are increased; and as solar photovoltaic panel is arranged in a cylinder interval and also can be arranged on ground or a building, when the solar mirror moves, the solar photovoltaic panel can keep still, the focal length is variable zooming and tracking, and the solar photovoltaic panel realizes the multiple kinds of utilization of the focused and tracked solar energy in a cylinder. The invention provides an array structure of the system, which is suitable for systems of different scales, and simultaneously suitable for large-scale utilization of the solar energy, particularly the photovoltaic generation and the heat utilization of the solar energy.

Description

technical field [0001] The invention relates to the utilization of solar energy, in particular to the linear tracking of the focus of solar energy focusing and tracking as a straight line and the composition of an array tracking and focusing photovoltaic power generation system. Background technique [0002] An effective way to improve the efficiency of photovoltaic power generation panels is to use tracking and focusing photovoltaic power generation, which can effectively improve the efficiency of photovoltaic cells and reduce costs. [0003] There are mainly three types of solar focus tracking technologies: trough type, tower type and butterfly type, but they are all applied to large-scale solar thermal power plants, and no related technologies are applied to focus photovoltaic power generation. [0004] At the same time, because the focus tracking increases the temperature of the solar panel, it is necessary to increase the heat sink for the solar panel, and it can also b...

AI Technical Summary

Problems solved by technology

[0005] Chinese patent 200710176966 provides a combined tracking system, which can be used in a trough-type and tower-type tracking system. The tracking method adopts the method of keeping the focus fixed while the solar mirror system moves. It is mainly set on the ground. Two orbits are used for tracking, and the line-focusing system of the trough system uses its linear axis to be placed parallel to the axis of the earth's self-propagation, so it can use rotation in one direction to achieve tracking, but this scheme uses rotation on the ground to achieve trough tracking. Obviously, tracking cannot be realized, so the inventor further set pitch tracking in the scheme, so that the trough system is not a one-way tracking, but a two-way tracking, so the inventor did not solve the problem that the focal line does not move when the trough one-way tracking question

[0006] The inventor announced the solar energy utilization system of zoom tracking in the invention of 200610020352, which mainly adopts the disc or cross bidirectional tracking method to realize zoom tracking, but the system does not adopt unidirectional tracking

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