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Structure for output-stage film capacitor in power conditioner

A film capacitor and power regulator technology, applied in capacitors, irreversible DC power input conversion to AC power output, photovoltaic power generation, etc., can solve the problems of film damage, insulation breakdown, and high internal pressure of film capacitor components. To achieve the effect of preventing heat generation or capacitance reduction, and preventing abnormal breakdown

Inactive Publication Date: 2013-07-17
ORMON CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the gas remains inside without releasing the gas to the outside, the internal pressure of the film capacitor element becomes unfavorably high
[0007] As a result, the film made of synthetic resin constituting the film capacitor element is broken, and the aluminum foils come into contact with each other, causing insulation breakdown

Method used

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  • Structure for output-stage film capacitor in power conditioner
  • Structure for output-stage film capacitor in power conditioner
  • Structure for output-stage film capacitor in power conditioner

Examples

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Embodiment approach 1

[0042] Next, we will use Figure 1 to Figure 4 A first embodiment according to the present invention will be described. In the following description, the same reference numerals will be used to describe the Figure 5 The corresponding structure of the conventional technology is shown.

[0043] Such as figure 1 As shown, a power conditioner A that converts DC power from a power source (such as the distributed power source according to the first embodiment of the present invention) into AC power synchronous with the system power supply has: DC power (such as a distributed power source); electrolytic capacitor 3, which smoothes the DC power increased in the booster circuit 2; inverter circuit 5, which converts the DC power smoothed in the electrolytic capacitor 3 into synchronization with the system power supply 4 the AC power; the filter circuit 6, which applies filter processing to the AC power converted in the inverter circuit 5; the interconnection relay 7, which blocks th...

Embodiment approach 2

[0060] Next, we will use Figure 4 A second embodiment according to the present invention will be described. according to Figure 4 , the second embodiment has a structure similar to that of the first embodiment in which the thermal fuse 16 is directly attached to the short-side forming side 6a and the long-side forming side 6b of the film capacitor element 6A or the like, except that For example, two film capacitor elements 6A are housed in a capacitor case 6A-2 with one side surfaces adjoining each other to increase the capacitance of the capacitor, and one thermal fuse 16 is sandwiched and mounted between the two adjacent ones. between the side surfaces. Further, in the temperature sensor connection circuit 14 in the power conditioner A, the temperature fuse 16 is connected in series as in the first embodiment.

[0061]Therefore, in the second embodiment, as in the first embodiment, since the temperature fuse 16 is directly attached to the film capacitor element 6A to se...

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Abstract

The present invention has a film capacitor element (6A) as a low-pass filter for blocking off high-frequency waves generated by an inverter circuit (5), the film capacitor element being disposed between the inverter circuit (5) for converting the DC power of a power supply (1) to AC power and outputting the AC power, and an interlinking relay (7) for blocking interlinking connections between the power supply (1) and a system power supply (4). In this case, the temperature of the film capacitor element (6A) is detected by directly connecting a temperature fuse (16) to the film capacitor element (6A).

Description

technical field [0001] The present invention relates to a structure of an output stage film capacitor used in a power conditioner, which has a film capacitor element used as a low-pass filter for blocking high-frequency waves generated by an inverter circuit, the film capacitor element being provided in the inverter Between the circuit and the interconnection relay, the inverter circuit is used to convert the DC power of the power supply into AC power and output the AC power, the interconnection relay is used to block the interconnection between the power supply and the system power supply, the power regulation A converter is provided between a power source (such as a distributed power source) and a system power source to convert DC power from the power source into AC power synchronized with the system power source. Background technique [0002] Such as Figure 5 As shown, a conventional power conditioner that converts DC power from a power source (such as a distributed powe...

Claims

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Application Information

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IPC IPC(8): H02M7/48H01G2/16H02H7/122
CPCH02H7/122Y02E10/563H01G2/16H02J3/383H02J2300/24H02J3/381Y02E10/56H02J3/40H02H5/04
Inventor 田边胜隆原田优作丰浦信行
Owner ORMON CORPORATION
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