JPH10336897A - Power active filter control device - Google Patents
Power active filter control deviceInfo
- Publication number
- JPH10336897A JPH10336897A JP9145297A JP14529797A JPH10336897A JP H10336897 A JPH10336897 A JP H10336897A JP 9145297 A JP9145297 A JP 9145297A JP 14529797 A JP14529797 A JP 14529797A JP H10336897 A JPH10336897 A JP H10336897A
- Authority
- JP
- Japan
- Prior art keywords
- power
- compensator
- current
- reactive
- active
- 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.)
- Withdrawn
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/20—Active power filtering [APF]
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Electrical Variables (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、パワーアクティブ
フィルタの制御に適用されるパワーアクティブフィルタ
制御装置に関する。The present invention relates to a power active filter control device applied to control of a power active filter.
【０００２】[0002]
【従来の技術】図２は、従来のパワーアクティブフィル
タ制御装置の構成を示すブロック図である。パワーアク
ティブフィルタは、スイッチング素子を用いて電力を変
換する電力変換器９と、この電力変換器９を運転する電
力変換運転装置８と、電力変換器９の出力をフィルタリ
ングする出力波形フィルタ１０とからなる。パワーアク
ティブフィルタ制御は、配電系統の電流、電圧を検出
し、基本波に重畳している高調波成分を求め、キャンセ
ルする指令を電力変換運転装置８に与えることで行なわ
れる。2. Description of the Related Art FIG. 2 is a block diagram showing a configuration of a conventional power active filter control device. The power active filter includes a power converter 9 that converts power using a switching element, a power conversion operation device 8 that operates the power converter 9, and an output waveform filter 10 that filters an output of the power converter 9. Become. The power active filter control is performed by detecting the current and voltage of the power distribution system, obtaining a harmonic component superimposed on the fundamental wave, and giving a command to the power conversion operation device 8 to cancel.
【０００３】図２に示すパワーアクティブフィルタ制御
装置７１では、配電系統から検出された検出電圧２を入
力し、電源周波数導出器４により電源周波数を求める。
電源周波数導出器４で求めた電源周波数と検出電流（三
相）１を有効／無効電流変換器３が入力し、有効電流と
無効電流を求める。この求められた有効電流と無効電流
を高調波検出器５が入力し、基本波成分から高調波成分
のみを導出する。この導出された高調波成分のみの有効
電流、無効電流及び電源周波数を三相電流変換器６が入
力する。そして三相電流変換器６が、高調波をキャンセ
ルする指令を電力変換運転装置８へ出力しパワーアクテ
ィブフィルタを制御する。[0003] In a power active filter control device 71 shown in FIG. 2, a detected voltage 2 detected from a power distribution system is input, and a power supply frequency deriving device 4 obtains a power supply frequency.
The active / inactive current converter 3 inputs the power supply frequency and the detected current (three-phase) 1 obtained by the power supply frequency deriving unit 4 to obtain an active current and a reactive current. The obtained active current and reactive current are input to the harmonic detector 5, and only the harmonic component is derived from the fundamental component. The three-phase current converter 6 receives the derived active current, reactive current and power supply frequency of only the harmonic components. Then, the three-phase current converter 6 outputs a command to cancel the harmonic to the power conversion operation device 8 to control the power active filter.
【０００４】[0004]
【発明が解決しようとする課題】従来のパワーアクティ
ブフィルタは、検出した電流、電圧を用いて配電系統に
存在する高調波をキャンセルしている。しかしこの場
合、電流、電圧の検出器の応答の遅れ、パワーアクティ
ブフィルタ制御装置７１の処理時間、出力波形フィルタ
の位相遅れ等が存在する。このため、パワーアクティブ
フィルタ制御装置７１で求めた高調波をキャンセルする
指令では、配電系統に存在する高調波の低減度が低い、
または高調波が増幅するという問題がある。また、電
圧、電流の位相差から生じる無効電力の補償を行なって
いないため、力率の向上が図れないという問題がある。The conventional power active filter uses the detected current and voltage to cancel harmonics existing in the power distribution system. However, in this case, there are delays in the response of the current and voltage detectors, the processing time of the power active filter control device 71, and the phase delay of the output waveform filter. For this reason, in the command to cancel the harmonics obtained by the power active filter control device 71, the degree of reduction of the harmonics existing in the distribution system is low.
Alternatively, there is a problem that harmonics are amplified. In addition, there is a problem that the power factor cannot be improved because the reactive power generated due to the phase difference between the voltage and the current is not compensated.
【０００５】本発明の目的は、電流、電圧の検出器の応
答の遅れ、パワーアクティブフィルタ制御装置の処理時
間、出力波形フィルタの位相遅れ等が存在する場合で
も、配電系統に存在する高調波を増幅することなく低減
でき、無効電力の補償を行ない力率向上を図ることがで
きるパワーアクティブフィルタ制御装置を提供すること
にある。SUMMARY OF THE INVENTION It is an object of the present invention to eliminate harmonics present in a power distribution system even when there are delays in response of current and voltage detectors, processing time of a power active filter control device, phase delay of an output waveform filter, and the like. An object of the present invention is to provide a power active filter control device capable of reducing power without amplifying, compensating for reactive power and improving power factor.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決し目的を
達成するために、本発明のパワーアクティブフィルタ制
御装置は以下の如く構成されている。本発明のパワーア
クティブフィルタ制御装置は、配電系統から検出した検
出電圧より電源周波数を求める電源周波数導出器と、こ
の電源周波数導出器で求めた電源周波数と検出した電流
より有効電流と無効電流を求める有効／無効電流変換器
と、この有効／無効電流変換器で求めた有効電流を示す
信号の基本波成分を取り除き高調波成分のみを取り出す
高調波検出器と、前記有効／無効電流変換器で求めた無
効電流を示す信号より無効電力補償信号を導出する無効
電力補償器と、前記高調波検出器で求めた前記高調波成
分と前記無効電力補償器で導出した前記無効電力補償信
号を入力し、無駄となる時間を補償した無駄時間補償信
号を出力する無駄時間補償器と、この無駄時間補償器か
らの無駄時間補償信号を入力し、この信号に応答時間、
位相遅れを補償した補償信号を出力する出力フィルタ補
償器と、この出力フィルタ補償器からの補償信号と前記
電源周波数を入力し、電力変換運転指令を出力する三相
電流変換器と、から構成されている。Means for Solving the Problems To solve the above problems and achieve the object, a power active filter control device according to the present invention is configured as follows. A power active filter control device according to the present invention includes a power supply frequency deriving device for obtaining a power supply frequency from a detected voltage detected from a power distribution system, and obtaining an active current and a reactive current from the power supply frequency obtained by the power supply frequency derivation device and the detected current. An active / reactive current converter, a harmonic detector for removing a fundamental component of a signal indicating an active current obtained by the active / reactive current converter and extracting only a harmonic component, and a harmonic detector obtained by the active / reactive current converter. A reactive power compensator for deriving a reactive power compensation signal from a signal indicating the reactive current, and the reactive power compensation signal derived by the reactive power compensator and the harmonic component obtained by the harmonic detector, A dead time compensator that outputs a dead time compensation signal that compensates for wasted time, and a dead time compensation signal from the dead time compensator that is input, and a response time,
An output filter compensator that outputs a compensation signal that compensates for a phase delay, and a three-phase current converter that inputs a compensation signal from the output filter compensator and the power supply frequency and outputs a power conversion operation command. ing.
【０００７】[0007]
【発明の実施の形態】図１は、本発明の実施の形態に係
るパワーアクティブフィルタ制御装置の構成を示すブロ
ック図である。図１において図２と同一な部分には同一
符号を付してある。パワーアクティブフィルタ制御装置
７では、有効／無効電流変換器３が高調波検出器５、無
効電力補償器１４を介して遅れ時間補償器１７の無駄時
間補償器１５に接続されている。遅れ時間補償器１７で
は、無駄時間補償器１５が出力フィルタ補償器１６に接
続されている。出力フィルタ補償器１６は三相電流変換
器６に接続されており、電源周波数導出器４は有効／無
効電流変換器３と三相電流変換器６に接続されている。FIG. 1 is a block diagram showing a configuration of a power active filter control device according to an embodiment of the present invention. In FIG. 1, the same parts as those in FIG. 2 are denoted by the same reference numerals. In the power active filter control device 7, the active / reactive current converter 3 is connected to the dead time compensator 15 of the delay time compensator 17 via the harmonic detector 5 and the reactive power compensator 14. In the delay time compensator 17, the dead time compensator 15 is connected to the output filter compensator 16. The output filter compensator 16 is connected to the three-phase current converter 6, and the power frequency deriving device 4 is connected to the active / inactive current converter 3 and the three-phase current converter 6.
【０００８】制御対象となるパワーアクティブフィルタ
は、電力変換運転装置８、電力変換器９及び出力波形フ
ィルタ１０からなる。三相電流変換器６は、電力変換運
転装置８に接続されており、電力変換運転装置８は、電
力変換器９を介して出力波形フィルタ１０に接続されて
いる。The power active filter to be controlled includes a power conversion operation device 8, a power converter 9, and an output waveform filter 10. The three-phase current converter 6 is connected to a power conversion operation device 8, and the power conversion operation device 8 is connected to an output waveform filter 10 via a power converter 9.
【０００９】このような構成をなすパワーアクティブフ
ィルタ制御装置７では、図示しない配電系統から図示し
ない電圧検出器にて検出した検出電圧２を電源周波数導
出器４が入力し、検出電力２の値がゼロクロスする時間
をカウントし、そのカウントした時間を基に電源周波数
を導出する。電源周波数導出器４で求めた電源周波数と
図示しない電流検出器にて検出した検出電流（三相）１
を有効／無効電流変換器３が入力し、前記電源周波数と
検出電流１を用いて演算を行ない、有効電流信号１２と
無効電流信号１３を導出する。有効／無効電流変換器３
は、導出した有効電流信号１２を高調波検出器５へ出力
し、無効電流信号１３を無効電力補償器１４へ出力す
る。In the power active filter control device 7 having such a configuration, the power supply frequency deriving device 4 inputs the detected voltage 2 detected by the voltage detector (not shown) from the power distribution system (not shown), and the value of the detected power 2 is reduced. The zero-crossing time is counted, and the power supply frequency is derived based on the counted time. The power supply frequency obtained by the power supply frequency deriving device 4 and the detected current (three-phase) 1 detected by a current detector (not shown)
Is input to the active / inactive current converter 3 and an operation is performed using the power supply frequency and the detected current 1 to derive an active current signal 12 and an inactive current signal 13. Active / inactive current converter 3
Outputs the derived effective current signal 12 to the harmonic detector 5 and outputs the reactive current signal 13 to the reactive power compensator 14.
【００１０】高調波検出器５は、入力した有効電流信号
１２の基本成分を取り除き、有効電流信号１２の高調波
成分のみを検出し、遅れ補償器１７の無駄時間補償器１
５へ出力する。無効電力補償器１４は、入力した無効電
流信号１３を基本波、高調波とも含んだ信号のまま無駄
時間補償器１５へ出力する。無駄時間補償器１５は、入
力した有効電流信号１２の高調波成分と基本波及び高調
波を含んだ無効電流信号１３とに、パワーアクティブフ
ィルタ制御装置７の処理時間（無駄時間）、電力変換運
転装置８の処理時間（無駄時間）、電力変換器９の無駄
時間の各モデルを基に求めた時間を補償し、出力フィル
タ補償器１６へ出力する。The harmonic detector 5 removes the fundamental component of the input effective current signal 12, detects only the harmonic component of the effective current signal 12, and outputs the dead time compensator 1 of the delay compensator 17.
Output to 5 The reactive power compensator 14 outputs the input reactive current signal 13 to the dead time compensator 15 as a signal including both the fundamental wave and the harmonic. The dead time compensator 15 converts the harmonic component of the input effective current signal 12 and the reactive current signal 13 including the fundamental wave and the harmonic into the processing time (dead time) of the power active filter control device 7 and the power conversion operation. The time calculated based on each model of the processing time (dead time) of the device 8 and the dead time of the power converter 9 is compensated and output to the output filter compensator 16.
【００１１】出力フィルタ補償器１６は、無駄時間補償
器１５からの信号を入力し、上記電流、電圧検出器の応
答時間、パワーアクティブフィルタ制御装置７の入出力
応答時間、出力波形フィルタの位相遅れのモデルを用い
て、入力した前記信号に応答時間、位相遅れを補償し、
その補償した信号を三相電流変換器６へ出力する。三相
電流変換器６は、補償した前記信号と電源周波数導出器
４で求められた上記電源周波数を用いて演算を行ない、
電力変換運転装置８への運転指令を導出する。The output filter compensator 16 receives the signal from the dead time compensator 15 and receives the current, the response time of the voltage detector, the input / output response time of the power active filter control device 7, the phase delay of the output waveform filter. Using the model of the above, the input signal is compensated for response time and phase lag,
The compensated signal is output to the three-phase current converter 6. The three-phase current converter 6 performs an operation using the compensated signal and the power supply frequency obtained by the power supply frequency deriving device 4,
An operation command to the power conversion operation device 8 is derived.
【００１２】電力変換運転装置８は、三相電流変換器６
から出力された運転指令を入力し、電力変換器９へ変換
指令を出力する。電力変換器９は、前記交換指令を入力
し、直流から交流に電力変換した電流波形を出力波形フ
ィルタ１０へ出力する。出力波形フィルタ１０は、電力
変換器９で電力変換された電流波形を入力し、パワーア
クティブフィルタ制御装置７で導出した高調波を補償す
る電流波形として補償電流１１を出力する。The power conversion operation device 8 includes a three-phase current converter 6
And outputs a conversion command to the power converter 9. The power converter 9 receives the exchange command and outputs a current waveform obtained by power conversion from DC to AC to the output waveform filter 10. The output waveform filter 10 receives the current waveform that has been power-converted by the power converter 9 and outputs a compensation current 11 as a current waveform that compensates for harmonics derived by the power active filter control device 7.
【００１３】なお、本発明は上記実施の形態のみに限定
されず、要旨を変更しない範囲で適時変形して実施でき
る。 （実施の形態のまとめ）実施の形態に示された構成およ
び作用効果をまとめると次の通りである。The present invention is not limited to the above-described embodiment, and can be modified as needed without departing from the scope of the invention. (Summary of Embodiment) The configuration, operation and effect shown in the embodiment are summarized as follows.
【００１４】実施の形態に示されたパワーアクティブフ
ィルタ制御装置は、配電系統から検出した検出電圧より
電源周波数を求める電源周波数導出器４と、この電源周
波数導出器４で求めた電源周波数と検出した電流より有
効電流と無効電流を求める有効／無効電流変換器３と、
この有効／無効電流変換器３で求めた有効電流を示す信
号の基本波成分を取り除き高調波成分のみを取り出す高
調波検出器５と、前記有効／無効電流変換器３で求めた
無効電流を示す信号より無効電力補償信号を導出する無
効電力補償器１４と、前記高調波検出器５で求めた高調
波成分と前記無効電力補償信号を入力し、無駄となる時
間を補償した無駄時間補償信号を出力する無駄時間補償
器１５と、この無駄時間補償器１５からの無駄時間補償
信号を入力し、検出器の応答、出力波形をフィルタリン
グするフィルタ等の影響を補償した遅れ補償信号を出力
する出力フィルタ補償器１６と、この出力フィルタ補償
器１６からの遅れ補償信号と前記電源周波数を入力し、
電力変換運転指令を出力する三相電流変換器６と、から
構成されている。The power active filter control device shown in the embodiment detects a power supply frequency deriving device 4 for obtaining a power supply frequency from a detected voltage detected from a power distribution system and a power supply frequency obtained by the power supply frequency deriving device 4. An active / reactive current converter 3 for obtaining an active current and a reactive current from the current;
The harmonic detector 5 removes the fundamental component of the signal indicating the active current obtained by the active / inactive current converter 3 and extracts only the harmonic component, and the reactive current obtained by the active / inactive current converter 3. A reactive power compensator 14 for deriving a reactive power compensation signal from a signal, a harmonic component obtained by the harmonic detector 5 and the reactive power compensation signal are input, and a dead time compensation signal for compensating for wasted time is generated. A dead time compensator 15 to be output, and an output filter that receives the dead time compensation signal from the dead time compensator 15 and outputs a delay compensation signal that compensates for the effects of a filter for filtering the response of the detector and the output waveform. A compensator 16, a delay compensation signal from the output filter compensator 16 and the power supply frequency,
And a three-phase current converter 6 that outputs a power conversion operation command.
【００１５】このように上記パワーアクティブフィルタ
制御装置においては、パワーアクティブフィルタの制御
装置７の処理時間等の無駄時間、電流、電圧検出器の応
答遅れ、出力波形フィルタの位相遅れ、及び無効電力を
補償することにより、配電系統の高調波を効率よく低減
することができる。そして、有効／無効電流変換器３及
び高調波検出器５により導出した有効電流の高調波成分
のみを取り出した高調波成分と無効電力補償信号を、無
駄時間補償器１５、出力フィルタ補償器１６に入力する
ことにより、パワーアクティブフィルタの制御装置７の
処理時間等、電流、電圧の検出器の応答遅れ、出力波形
フィルタ１０の位相遅れ等を補償することができ、配電
系統の存在する高調波を増幅することなく効率よく低減
することができ、無効電力の補償を行ない力率向上を図
ることができる。As described above, in the power active filter control device, the dead time such as the processing time of the power active filter control device 7, the current, the response delay of the voltage detector, the phase delay of the output waveform filter, and the reactive power are determined. By compensating, harmonics of the distribution system can be reduced efficiently. Then, the harmonic component and the reactive power compensation signal obtained by extracting only the harmonic component of the active current derived by the active / reactive current converter 3 and the harmonic detector 5 are sent to the dead time compensator 15 and the output filter compensator 16. By inputting, the processing time of the control device 7 of the power active filter, the response delay of the current and voltage detectors, the phase delay of the output waveform filter 10 and the like can be compensated, and the harmonics present in the power distribution system can be compensated. The power can be efficiently reduced without amplification, and the power factor can be improved by compensating for the reactive power.
【００１６】[0016]
【発明の効果】本発明のパワーアクティブフィルタ制御
装置によれば、パワーアクティブフィルタの制御装置の
処理時間等の無駄時間、電流、電圧検出器の応答遅れ、
出力波形フィルタの位相遅れ、及び無効電力を補償する
ことにより、配電系統の高調波を効率よく低減すること
ができる。そして、有効／無効電流変換器及び高調波検
出器により導出した有効電流の高調波成分のみを取り出
した高調波成分と無効電力補償信号を、無駄時間補償
器、出力フィルタ補償器に入力することにより、パワー
アクティブフィルタの制御装置の処理時間等、電流、電
圧の検出器の応答遅れ、出力波形フィルタの位相遅れ等
を補償することができ、配電系統の存在する高調波を増
幅することなく効率よく低減することができ、無効電力
の補償を行ない力率向上を図ることができる。According to the power active filter control device of the present invention, dead time such as processing time of the power active filter control device, current and response delay of the voltage detector,
By compensating for the phase lag of the output waveform filter and the reactive power, the harmonics of the distribution system can be reduced efficiently. Then, the harmonic component and the reactive power compensation signal, which are obtained by extracting only the harmonic component of the active current derived by the active / reactive current converter and the harmonic detector, are input to the dead time compensator and the output filter compensator. It can compensate for the processing time of the control device of the power active filter, the response delay of the current and voltage detectors, the phase delay of the output waveform filter, etc., efficiently without amplifying the harmonics present in the distribution system. Thus, the reactive power can be compensated and the power factor can be improved.
【図１】本発明の実施の形態に係るパワーアクティブフ
ィルタ制御装置の構成を示すブロック図。FIG. 1 is a block diagram showing a configuration of a power active filter control device according to an embodiment of the present invention.
【図２】従来例に係るパワーアクティブフィルタ制御装
置の構成を示すブロック図。FIG. 2 is a block diagram showing a configuration of a power active filter control device according to a conventional example.
１…検出電流（三相） ２…検出電圧 ３…有効／無効電流変換器 ４…電源周波数導出器 ５…高調波検出器 ６…三相電流変換器 ７…パワーアクティブフィルタ制御装置 ８…電力変換運転装置 ９…電力変換器 １０…出力波形フィルタ １１…補償電流 １２…有効電流信号 １３…無効電流信号 １４…無効電力補償器 １５…無駄時間補償器 １６…出力フィルタ補償器 １７…遅れ時間補償器 DESCRIPTION OF SYMBOLS 1 ... Detection current (three-phase) 2 ... Detection voltage 3 ... Effective / inactive current converter 4 ... Power supply frequency derivation device 5 ... Harmonic detector 6 ... Three-phase current converter 7 ... Power active filter control device 8 ... Power conversion Operating device 9 Power converter 10 Output waveform filter 11 Compensation current 12 Active current signal 13 Reactive current signal 14 Reactive power compensator 15 Dead time compensator 16 Output filter compensator 17 Delay time compensator
Claims (1)
波数を求める電源周波数導出器と、 この電源周波数導出器で求めた電源周波数と検出した電
流より有効電流と無効電流を求める有効／無効電流変換
器と、 この有効／無効電流変換器で求めた有効電流を示す信号
の基本波成分を取り除き高調波成分のみを取り出す高調
波検出器と、 前記有効／無効電流変換器で求めた無効電流を示す信号
より無効電力補償信号を導出する無効電力補償器と、 前記高調波検出器で求めた前記高調波成分と前記無効電
力補償器で導出した前記無効電力補償信号を入力し、無
駄となる時間を補償した無駄時間補償信号を出力する無
駄時間補償器と、 この無駄時間補償器からの無駄時間補償信号を入力し、
この信号に応答時間、位相遅れを補償した補償信号を出
力する出力フィルタ補償器と、 この出力フィルタ補償器からの補償信号と前記電源周波
数を入力し、電力変換運転指令を出力する三相電流変換
器と、 を具備したことを特徴とするパワーアクティブフィルタ
制御装置。1. A power supply frequency deriving device for obtaining a power supply frequency from a detected voltage detected from a power distribution system, and an active / inactive current conversion for obtaining an active current and a reactive current from the power supply frequency obtained by the power supply frequency derivation device and the detected current. A harmonic detector which removes only a harmonic component by removing a fundamental component of a signal indicating an active current obtained by the active / reactive current converter, and a reactive current obtained by the active / reactive current converter. A reactive power compensator for deriving a reactive power compensating signal from a signal, and inputting the harmonic component determined by the harmonic detector and the reactive power compensating signal derived by the reactive power compensator, thereby wasting time. A dead time compensator for outputting a compensated dead time compensation signal, and a dead time compensation signal from the dead time compensator,
An output filter compensator that outputs a compensation signal obtained by compensating a response time and a phase delay to the signal; a three-phase current converter that inputs a compensation signal from the output filter compensator and the power supply frequency and outputs a power conversion operation command A power active filter control device, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9145297A JPH10336897A (en) | 1997-06-03 | 1997-06-03 | Power active filter control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9145297A JPH10336897A (en) | 1997-06-03 | 1997-06-03 | Power active filter control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10336897A true JPH10336897A (en) | 1998-12-18 |
Family
ID=15381895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9145297A Withdrawn JPH10336897A (en) | 1997-06-03 | 1997-06-03 | Power active filter control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10336897A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007119855A1 (en) * | 2006-04-13 | 2007-10-25 | Hitachi, Ltd. | Power converting device, and control method therefor |
| CN102611110A (en) * | 2012-03-16 | 2012-07-25 | 南京亚派科技实业有限公司 | Software phase-locked loop realization method based on average filtering algorithm |
| CN102931682A (en) * | 2012-10-30 | 2013-02-13 | 西安交通大学 | Carrier frequency conversion control method |
| CN110601196A (en) * | 2019-09-17 | 2019-12-20 | 中南大学 | Optimal installation point selection method for active filter in power distribution network |
-
1997
- 1997-06-03 JP JP9145297A patent/JPH10336897A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007119855A1 (en) * | 2006-04-13 | 2007-10-25 | Hitachi, Ltd. | Power converting device, and control method therefor |
| JP5051127B2 (en) * | 2006-04-13 | 2012-10-17 | 株式会社日立製作所 | Power converter and control method thereof |
| CN102611110A (en) * | 2012-03-16 | 2012-07-25 | 南京亚派科技实业有限公司 | Software phase-locked loop realization method based on average filtering algorithm |
| CN102931682A (en) * | 2012-10-30 | 2013-02-13 | 西安交通大学 | Carrier frequency conversion control method |
| CN110601196A (en) * | 2019-09-17 | 2019-12-20 | 中南大学 | Optimal installation point selection method for active filter in power distribution network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20040803 |