Photovoltaic single-axis tracking system based on industrial wireless network and control method
An industrial wireless network and single-axis tracking technology, applied in the field of communication, can solve problems such as large energy consumption, vulnerability to weather changes, and damage to photovoltaic arrays, so as to reduce the trouble of construction wiring, improve self-adaptive ability, and avoid energy loss Effect
Inactive Publication Date: 2013-10-02
AUTOMATION RES & DESIGN INST OF METALLURGICAL IND
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Problems solved by technology
However, the existing control methods generally use the solar signal transmitter to detect the solar elevation angle and azimuth angle, and then send the control information to the control node. This method relies on the optical signal detection device and consumes a lot of energy. The large number of on-site photovoltaic tracking devices will cause a great waste of energy and economy
Even if a single optical signal detection device is used, the entire control system is easily affected by weather changes and is not suitable for tracking control in emergency mode and manual mode
Under severe weather conditions (such as strong wind, rain, snow, etc.), the conventional tracking system cannot automatically fail-safe in time, which may easily cause damage to the photovoltaic array; the general tracking system cannot perform shadow avoidance in time when the photovoltaic array is blocked , also affects the utilization efficiency of solar energy to a certain extent
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[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but it is not used as a basis for any limitation of the present invention.
[0035] Embodiments of the present invention: as figure 1 As shown, a photovoltaic single-axis tracking system based on an industrial wireless network includes a photovoltaic tracking bracket 21, a bracket tracking controller 22, a wireless relay router 23, a wireless gateway 24, and a central monitoring computer 25. The photovoltaic tracking bracket 21 is connected to the bracket tracking Controller 22, support tracking controller 22 is connected to central monitoring computer 25 through wireless gateway 24, wireless gateway 24 has embedded sun angle tracking database and shadow avoidance algorithm, wireless gateway 24 and central monitoring computer 25 adopt RS232 / RS485 / TCP- IP protocol communication. The system adopts the form of wireless ad hoc network, and the wire...
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The invention discloses a photovoltaic single-axis tracking system based on an industrial wireless network and a control method. The photovoltaic single-axis tracking system comprises a photovoltaic tracking bracket (21), a bracket tracking controller (22), a wireless gateway (24) and a centre monitoring computer (25), wherein the photovoltaic tracking bracket (21) is connected with the bracket tracking controller (22), and the bracket tracking controller (22) is connected with the centre monitoring computer (25) through the wireless gateway (24). The distributed control mode of industrial wireless communication is adopted in the photovoltaic single-axis tracking system, so that the orientation of a solar panel is automatically adjusted according to the direction of sunlight, the manual intervention is unnecessary during a tracking process, the mounting is convenient, the construction and wiring troubles are greatly reduced, the structure is simple and the cost is low. The adaptive ability of the system under a severe weather condition is increased by a fault detecting protection function. The solar energy is extremely utilized.
Description
technical field [0001] The invention relates to the field of communication and the technical field of photovoltaic power generation systems, in particular to a photovoltaic single-axis tracking system and control method based on an industrial wireless network. Background technique [0002] Solar photovoltaic power generation has many positive economic, social and environmental implications, and has become the fastest growing technology in the world. Among them, the photovoltaic tracking system keeps the solar panel facing the sun at any time by automatically tracking the trajectory of the sun, so that the surface of the photovoltaic panel is as perpendicular as possible to the sun's radiation light to obtain more power generation. According to statistics, the power generation performance of the single-axis tracking system is 3%-5% lower than that of the two-axis system, and the overall power generation level is more than 20% higher than that of the fixed support. The price ...
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IPC IPC(8): G05D3/12
Inventor 潘秋娟张云贵王丽娜张农于立业
Owner AUTOMATION RES & DESIGN INST OF METALLURGICAL IND