JP2012231635A5 - POWER CONVERTER AND POWER SUPPLY SYSTEM - Google Patents
POWER CONVERTER AND POWER SUPPLY SYSTEM Download PDFInfo
- Publication number
- JP2012231635A5 JP2012231635A5 JP2011099441A JP2011099441A JP2012231635A5 JP 2012231635 A5 JP2012231635 A5 JP 2012231635A5 JP 2011099441 A JP2011099441 A JP 2011099441A JP 2011099441 A JP2011099441 A JP 2011099441A JP 2012231635 A5 JP2012231635 A5 JP 2012231635A5
- Authority
- JP
- Japan
- Prior art keywords
- power
- voltage
- command waveform
- output power
- voltage command
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Claims (5)
出力するインバータ回路を備えた電力変換装置であって、
前記インバータ回路は、前記出力電力の力率を変化させるための操作量が加えられた電
圧指令波形と三角波との比較結果に応じたパルス信号を受け取って動作し、
前記電圧指令波形は、前記連系点における基本周波数の電圧或いは高調波電圧が変化し
た場合に、更に前記出力電力に変化を与えるように決定され、
前記電圧指令波形の変化に前記出力電力が追従した場合に、前記電力系統が停電してい
るにも関わらず前記直流電源から前記電力系統へ電力供給を継続していると判別すること
を特徴とする電力変換装置。 A power conversion device comprising: an inverter circuit that converts DC power supplied by a DC power source into AC output power and outputs the output power to the power system via an interconnection point ,
The inverter circuit is configured such that an amount of operation for changing a power factor of the output power is added.
Operates by receiving a pulse signal according to the comparison result of the pressure command waveform and the triangular wave,
In the voltage command waveform, the voltage or harmonic voltage of the fundamental frequency at the connection point changes.
If the output power is changed to
When the output power follows a change in the voltage command waveform, the power system is out of power
Power conversion apparatus characterized by determining that the continued powering from the DC power supply regardless to the power system that.
に前記出力電力が追従した場合に単独運転が発生したと判別することを特徴とする請求項
１に記載の電力変換装置。 The frequency of the voltage at the connection point satisfies a preset determination condition, and the voltage command waveform
Power converter according to claim 1 alone operation characterized that you determined to have occurred when the output power follows the.
前記電圧指令波形は、該検出された方向に応じて、前記出力電力の大きさを調節するよ
うに決定されることを特徴とする請求項１または請求項２に記載の電力変換装置。 Detecting the direction in which the voltage of the fundamental frequency is fluctuating;
The voltage command waveform adjusts the magnitude of the output power according to the detected direction .
The power converter according to claim 1 or 2, which is determined as follows.
前記バランスが不均衡となるように、前記電圧指令波形を調節することを特徴とする請
求項１乃至請求項３の何れかに記載の電力変換装置。 Grasp the balance between the output power and the power of the load connected to the interconnection point,
The balanced so becomes unbalanced, the power conversion device according to any one of claims 1 to 3, characterized in that adjusting the voltage command waveform.
前記直流電源と、を備え、
前記直流電力を交流電力に変換して、前記電力系統に出力することを特徴とする電力供
給システム。 A power converter according to any one of claims 1 to 4 ,
The DC power supply;
A power supply system characterized by converting the DC power into AC power and outputting the AC power to the power system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011099441A JP5891365B2 (en) | 2011-04-27 | 2011-04-27 | Power conversion device and power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011099441A JP5891365B2 (en) | 2011-04-27 | 2011-04-27 | Power conversion device and power supply system |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2012231635A JP2012231635A (en) | 2012-11-22 |
| JP2012231635A5 true JP2012231635A5 (en) | 2014-06-19 |
| JP5891365B2 JP5891365B2 (en) | 2016-03-23 |
Family
ID=47432680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011099441A Active JP5891365B2 (en) | 2011-04-27 | 2011-04-27 | Power conversion device and power supply system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5891365B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015180125A (en) * | 2014-03-18 | 2015-10-08 | 株式会社東芝 | Control apparatus, power conversion equipment, and control system |
| JP6354092B2 (en) * | 2014-08-11 | 2018-07-11 | 株式会社高砂製作所 | AC power supply device and isolated operation detection method |
| JP6621313B2 (en) * | 2015-12-02 | 2019-12-18 | 東洋電機製造株式会社 | Isolated operation detection device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3108282B2 (en) * | 1994-08-26 | 2000-11-13 | 三洋電機株式会社 | Islanding detection device |
| JP3302875B2 (en) * | 1996-03-12 | 2002-07-15 | 東芝アイティー・コントロールシステム株式会社 | Reactive power compensator for grid connection protection |
| JP4155214B2 (en) * | 2004-03-23 | 2008-09-24 | 松下電工株式会社 | Grid-connected inverter device |
| JP2007135256A (en) * | 2005-11-08 | 2007-05-31 | Matsushita Electric Ind Co Ltd | Interconnected inverter |
-
2011
- 2011-04-27 JP JP2011099441A patent/JP5891365B2/en active Active
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