High-precision heliostat reference position locating and detecting method and device

A reference position and heliostat technology, applied in the field of solar power generation, can solve the problems affecting the reference position positioning of heliostats, the positioning deviation of the reference position of the heliostat, and the reference position deviation of the heliostat, so as to reduce the deviation and improve the accuracy. , the effect of improving reliability

Active Publication Date: 2019-05-28
ZHEJIANG SUPCON SOLAR TECHNOLOGY CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

Due to the influence of the hysteresis characteristics of the Hall element, when the Hall element cuts in from the left side of the magnetic field and cuts in from the right side, the sensing range of the Hall element is different, which will cause a deviation in the positioning of the reference position of the heliostat; at the same time, in the northwest region The temperature difference between day and night is large. When the Hall switch is used as the reference position sensor of the heliostat, the magnetic field strength of the Hall element supporting the magnet has a certain variation law with the temperature change, which will affect the positioning of the reference position of the heliostat. At different time points When positioning the reference position of the heliostat, the reference position of the heliostat will be deviated due to the difference in ambient temperature

Method used

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  • High-precision heliostat reference position locating and detecting method and device
  • High-precision heliostat reference position locating and detecting method and device
  • High-precision heliostat reference position locating and detecting method and device

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Embodiment 1

[0034] The invention provides a high-precision heliostat reference position detection method. The initial reference position of the heliostat is determined by correcting the hysteresis of the Hall switch to correct the heliostat caused by the hysteresis of the Hall switch. Reference position positioning deviation, including steps:

[0035] S100: During the rotation of the heliostat along the first direction, detect whether the level of the Hall switch signal line jumps, and when it is detected that the level of the Hall switch signal line jumps for the first time during the first direction of rotation When the time changes, the first position when the Hall switch signal line level jumps for the first time is collected. When it is detected that the Hall switch signal line level has a second jump in the first steering rotation process, then Collect the second position when the level of the Hall switch signal line jumps for the second time;

[0036] Specifically, when the helios...

Embodiment 2

[0066] Please refer to figure 1 , the present invention also provides a magnet, a heliostat transmission mechanism, a Hall switch and a heliostat controller, wherein,

[0067] The magnet is fixed;

[0068] The Hall switch is installed on the transmission mechanism and rotates with the heliostat transmission mechanism;

[0069] The heliostat controller controls the rotation of the heliostat transmission mechanism, supplies power to the Hall switch, and corrects the hysteresis of the Hall switch by performing the following operations to determine the reference position of the heliostat :

[0070] During the rotation of the Hall switch along the first steering, it is detected whether the level of the signal line of the Hall switch jumps, if it is detected that the level of the signal line of the Hall switch jumps for the first time during the rotation of the first steering When the time changes, the first position when the level of the Hall switch signal line jumps for the fir...

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Abstract

The invention discloses a high-precision heliostat reference position locating and detecting method and device. The initial reference position of a heliostat is determined by modifying the hysteresisof a Hall switch, and the locating deviation, caused by the hysteresis of the Hall switch, of the reference position of the heliostat is modified. The method includes the steps of S100, collecting thefirst position where primary hopping happens to the level of a signal line of the Hall switch when the Hall switch rotates in the first rotation direction; S101, collecting the third position where primary hopping happens to the level of the signal line of the Hall switch when the Hall switch rotates in the second rotation direction; S103, determining the initial reference position of the heliostat on the basis of the first position and the third position. The locating deviation, caused by the hysteresis of the Hall switch, of the reference position of the heliostat is modified, and the locating precision of the reference position of the heliostat is improved.

Description

technical field [0001] The invention relates to the field of solar power generation, in particular to a method and device for positioning and detecting a reference position of a high-precision heliostat. Background technique [0002] While the economy continues to develop, energy is increasingly in short supply, traditional non-renewable energy is increasingly exhausted, and economic development is increasingly constrained by the development and utilization of energy. The utilization of renewable energy has attracted widespread attention, especially the utilization of solar energy has attracted more attention from the world. [0003] As a clean and renewable energy, solar energy has been applied more and more, especially photothermal power generation technology is an emerging solar energy utilization technology after photovoltaic power generation technology. Among several photothermal power generation technologies, tower-type solar thermal power generation uses a large numbe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D3/12
Inventor 丁永健胡玉超许涔沨雷冰海杨波谈双单
Owner ZHEJIANG SUPCON SOLAR TECHNOLOGY CO LTD
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