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Anti-PID photovoltaic inverter device based on EnOcean technology

A photovoltaic inverter and inverter technology, applied in photovoltaic power generation, photovoltaic modules, circuit devices, etc., can solve problems affecting signal transmission quality, high carrier signal reduction, and communication failures, so as to ensure communication distance and guarantee The effect of stability and long transmission distance

Pending Publication Date: 2018-01-19
GUODIAN NANJING AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, 485 communication needs to lay communication cables, communication failure occurs, and maintenance is inconvenient
PLC power carrier communication is susceptible to environmental interference. When the load of the transmission line is large, it is easy to generate high attenuation of the carrier signal, which seriously affects the quality of signal transmission.

Method used

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  • Anti-PID photovoltaic inverter device based on EnOcean technology
  • Anti-PID photovoltaic inverter device based on EnOcean technology
  • Anti-PID photovoltaic inverter device based on EnOcean technology

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings. 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.

[0021] combine figure 1 , an anti-PID photovoltaic inverter device based on EnOcean technology, including several MPPT combiner box units, photovoltaic grid-connected inverter units, and anti-PID units; the plurality of MPPT combiner box units, anti-PID units and photovoltaic grid-connected inverters The inverter unit is connected, and the output end of the photovoltaic grid-connected inverter unit is connected to the grid;

[0022] The photovoltaic grid-connected inverter unit includes a Y / Δ transformer module, a rectifier module, a first power supply module, a control module and an inverter module;

[0023] combine figure 2 , the MPPT combiner box unit includes an EMC module, a second powe...

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Abstract

The invention discloses an anti-PID photovoltaic inverter device based on an EnOcean technology. The anti-PID photovoltaic inverter device based on the EnOcean technology is characterized by comprising a plurality of MPPT junction box units, a photovoltaic grid-connected inverter unit and an anti-PID unit, wherein the MPPT junction box units and the anti-PID unit are connected with the photovoltaic grid-connected inverter unit; and the output end of the photovoltaic grid-connected inverter unit is connected with a power grid. The anti-PID photovoltaic inverter device based on the EnOcean technology has the advantages that ultra-low power consumption, remote communication and intelligent control are integrated, wireless communication between a photovoltaic inverter and an MPPT junction boxis realized, energy consumption of communication transmission of the photovoltaic inverter is reduced, and intelligent level of a photovoltaic power station is improved; and while communication distance is ensured, the anti-jamming capability is ultra-high. Compared with a similar technology, the anti-PID photovoltaic inverter device based on the EnOcean technology has the characteristics that power consumption is low, transmission distance is long, networking can be realized, functions such as relay can be fulfilled, and stability and safety of a whole communication system can be ensured.

Description

technical field [0001] The invention relates to an anti-PID photovoltaic inverter device based on EnOcean technology, which belongs to the field of electrotechnical technology. Background technique [0002] In the photovoltaic power generation system, water vapor is easy to be generated due to the humid and high temperature environment. If the water vapor penetrates into the components, the conductivity of the encapsulation material (ENC) will increase, and the leakage current of the corresponding components will increase, which will cause the surface polarization of the components. Serious Affect the power generation efficiency of photovoltaic panels. The commonly used method is to suppress the PID effect by directly grounding the negative electrode. This method is simple, low-cost, and effective. However, direct grounding of the negative electrode will cause potential safety hazards and threaten the normal operation and operation and maintenance safety of the power station...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02S40/30H02J13/00
CPCY04S10/123Y04S40/126Y02B90/20Y02E10/56Y02E40/70
Inventor 杨忠浩杨轶成郭超胡炫丁明进
Owner GUODIAN NANJING AUTOMATION
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