Method of optimizing the space between photovoltaic tracking system assemblies

A tracking system and photovoltaic module technology, applied in the application field of solar photovoltaic system, can solve problems such as affecting the effect of sun tracking

Active Publication Date: 2017-03-15
江苏旭迈思能源科技有限公司
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Problems solved by technology

During east-west tracking of the photovoltaic system, since the solar hour angle can vary from -90° to +90° every day, the distance between components in the east-west direction will affect the sun tracking effect

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  • Method of optimizing the space between photovoltaic tracking system assemblies
  • Method of optimizing the space between photovoltaic tracking system assemblies
  • Method of optimizing the space between photovoltaic tracking system assemblies

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Embodiment Construction

[0059] The present invention will be further described below. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0060] The radiation light irradiated on the solar cell module mainly includes direct radiation, scattered radiation and a small amount of reflected radiation, and the system efficiency gain brought about by sun tracking is mainly contributed by direct radiation. The direct radiation intensity of the horizontal ground can be determined by the following formula:

[0061] I b =rI sc cos(h)T r T a T wT o T u (1)

[0062] Among them, I b Indicates the direct irradiance intensity of the horizontal ground, I sc is the short-circuit current of the solar cell, r is the correction factor for the distance between the sun and the earth, h is the altitude angle of the sun, T o is the transmittance of radiation after being absorbed by ozone...

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Abstract

The invention discloses a method of optimizing the space between photovoltaic tracking system assemblies. The method of optimizing the space between photovoltaic tracking system assemblies includes the steps: according to the relation between a tracking angle and the position of sun, establishing the relation between the solar tracking angle and the space between assemblies; based on the basic principle of solar irradiation calculation, calculating the solar radiation on an inclined plane, and establishing the relation between the solar radiation on an inclined plane and the space between assemblies; performing scattering correction on the solar radiation on an inclined plane, and establishing the relation between the total solar radiant quantity on the inclined plane after correction and the space between assemblies; and at last, according to the gain maximization of the total solar radiant quantity on the inclined plane after correction, selecting the space between assemblies.

Description

technical field [0001] The invention relates to a method for optimizing the component spacing of a photovoltaic tracking system, and belongs to the technical field of solar photovoltaic system applications. Background technique [0002] At present, the main methods to improve the efficiency of photovoltaic power generation systems are: improving battery efficiency, using maximum operating power point tracking technology, and sun tracking. For concentrating photovoltaic systems, sun tracking is more important. Generally, only when the sun is tracked can the solar radiation reach the surface of photovoltaic cell components more uniformly. [0003] Existing technologies mostly focus on the study of the theoretical and practical impact of solar tracking on the power generation of solar photovoltaic systems, how to design solar trackers, and so on. There are relatively few reports on how to reasonably design the tracking angle within a limited distance and the influence of diffe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D3/10H02S20/32
CPCG05D3/10G05D3/105H02S20/32Y02E10/50
Inventor 王磊祝曾伟于书魁邵玺张臻刘志康
Owner 江苏旭迈思能源科技有限公司
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