High-voltage and large-current harmonics filter for photovoltaic inverter system

A harmonic filter and photovoltaic inverter technology, applied in the AC network to reduce harmonics/ripples, photovoltaic power generation, harmonic reduction devices, etc., can solve the problem that the filter is not suitable for solar photovoltaic power generation systems, etc., and achieve structural Compact and reasonable, valuable market application prospects, strong practical effect

Active Publication Date: 2014-06-25
上海西艾爱电子有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of existing traditional filters that are not sui

Method used

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  • High-voltage and large-current harmonics filter for photovoltaic inverter system
  • High-voltage and large-current harmonics filter for photovoltaic inverter system
  • High-voltage and large-current harmonics filter for photovoltaic inverter system

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[0015] The present invention will be further described below with reference to the drawings and typical embodiments.

[0016] in figure 1 , figure 2 with image 3 In the present invention, the main body of the high-voltage and high-current harmonic filter suitable for use in photovoltaic inverter systems includes an iron housing 1, a copper bus bar 2 and internal electrical components 3, and is characterized in that the copper bus bar 2 includes an outer end The three copper bus bar incoming wires 21 and the three copper bus bar outgoing wires 22 extending on the iron shell 1, the internal electrical components 3 include three copper bus bar incoming wires 21, three copper bus bar outgoing wires 22, ferrite The EMI filter system 4 and the LCL filter system 5 composed of the body magnetic ring T, the magnetic steel component Z, the capacitor C, and the resistor R, the electrical installation board 6, the installation support frame 7 with the assembly hole 71 and the steel belt 8,...

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Abstract

The invention relates to a high-voltage and large-current harmonics filter for a photovoltaic inverter system. The high-voltage and large-current harmonics filter comprises an iron outer shell, an EMI filtering system and an electric component in an LCL filtering system, wherein the iron outer shell is provided with three copper bar bus inlet wires and three copper bar bus outlet wires, the EMI filtering system is composed of a copper bar bus, a ferrite bead T, a magnetic steel assembly Z, a capacitor C and a resistor R. The EMI filtering system is used for restraining the electromagnetism interference, the LCL filtering system is used for restraining higher harmonics generated by a photovoltaic power generation system, three copper bar buses serve as circuit transmission media, wholly penetrate through the ferrite bead T and the magnetic steel assembly in sequence and are connected with electric points of other electrical components in a riveting mode, the current-carrying capacity can reach to 1,600 A, and the rated voltage is 480 V. The high-voltage and large-current harmonics filter is reasonable and compact in structure, reliable in work, good in stability, capable of effectively meeting and ensuring the using requirement for supplying high-quality electric energy to a social power grid of the photovoltaic power generation system and high in practicality.

Description

technical field [0001] The invention relates to the technical field of electronic anti-interference devices, in particular to a high-voltage and large-current harmonic filter suitable for photovoltaic inverter systems. Background technique [0002] With the advancement of science and technology and the improvement of solar energy utilization technology, solar energy, as a pollution-free, low-cost, inexhaustible natural green energy, has attracted more and more attention. At present, a variety of small solar energy utilization devices such as solar chargers, solar home power supply devices, and portable solar power supplies have appeared on the market. With the maturity of solar energy utilization technology, the integration of solar photovoltaic power into the social grid system has also begun to enter the market. Implementation phase. As we all know, the solar photovoltaic power generation system outputs direct current, which needs to be converted into single-phase or thre...

Claims

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Application Information

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IPC IPC(8): H02M1/12H02M1/44H02J3/01
CPCY02E10/56Y02E40/40
Inventor 姜帆修陈旭东周军周庆
Owner 上海西艾爱电子有限公司
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