JPH1084697A - Magnet flux-vector closed loop control - Google Patents

Magnet flux-vector closed loop control

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Publication number
JPH1084697A
JPH1084697A JP8275210A JP27521096A JPH1084697A JP H1084697 A JPH1084697 A JP H1084697A JP 8275210 A JP8275210 A JP 8275210A JP 27521096 A JP27521096 A JP 27521096A JP H1084697 A JPH1084697 A JP H1084697A
Authority
JP
Japan
Prior art keywords
magnetic flux
phase
operational amplifier
output
flux detection
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.)
Pending
Application number
JP8275210A
Other languages
Japanese (ja)
Inventor
Arata Nakajima
新 中島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP8275210A priority Critical patent/JPH1084697A/en
Publication of JPH1084697A publication Critical patent/JPH1084697A/en
Pending legal-status Critical Current

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  • Control Of Ac Motors In General (AREA)
  • Inverter Devices (AREA)

Abstract

PROBLEM TO BE SOLVED: To make it possible to detect magnetic flux from a current transformer through the counter electromotive force under feed-back control with high stability, taking a measure against harmonies and hysteresis, in which a three-phase PWM approximate sine wave in a closed loop is used aiming at prevention of a phase delay in flux detection or shaping of adjustment waveforms. SOLUTION: An output of magnetic flux detection is amplified by an operational amplifier 1. A command sine wave and the output of magnetic flux detection are taken out as a differential voltage by an operational amplifier 2 as a differential amplifier, and a removal ratio of phase differential factor is converted. A dislocation in phase from the current transformer is removed by a digital IC 3 as an NOT processor for free-running adjustment. The sanae phase factor as PWM signal wave between the sine wave and a truangular wave is generated and shaped by an operational amplifier 4. The output of magnetic flux detection from the current transformer and the PWM signal waveform are made equal to each other by a digital IC 5 as an AND processor.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】制御指令系フリケンシーを磁束電
圧指令ベクトルで制御を目的としているＣＴ検出の磁束
ベクトルは停止運転中にも磁束検出が可能で密閉モータ
を制御することができる 現在複数のフリケンシー制御は位相すべり磁束ベクトル
が主流であるが密閉モータの電源素子から変流器にて磁
束を検出しサーボドライブフィートバック制御で安定さ
せるBACKGROUND OF THE INVENTION A magnetic field vector for CT detection, which aims to control the frequency of a control command system with a magnetic flux voltage command vector, can detect a magnetic flux even during stop operation and can control a closed motor. The main control is the phase slip magnetic flux vector, but the magnetic flux is detected by the current transformer from the power supply element of the sealed motor and stabilized by the servo drive feedback control.

【０００２】[0002]

【従来の技術】現在磁束ベクトルはトルク指令すべりと
共用にバリアブルフリケンシー制御をしている従来のク
ローズドループは検出器としてパルスエンコーダブラシ
レスレゾルバなどの回転子を使用しているが密閉モータ
などは電源端子のＳＷＩＮＧ素子からＣＴ変流器を使い
磁束電流を検出し磁束を算出シセンサレスとしている2. Description of the Related Art At present, a magnetic flux vector is variable frequency controlled in common with a torque command slip. A conventional closed loop uses a rotor such as a pulse encoder brushless resolver as a detector, but a power supply terminal is used for a sealed motor. Using a CT current transformer from the SWING element to detect magnetic flux current and calculate magnetic flux

【０００３】[0003]

【発明が解決しようとする課題】センサレスとし三相二
百ボルトの電源端子のＳＷＩＮＧ素子をＣＴ変流器で磁
束を検出しているので制御指令係の電圧電流検出はアナ
ログ出力で指令している本発明はＰＷＭ信号の制御指令
で行なっているが類以システム位相ベクトルとのオペア
ンプの語幹性と相異している点ではＰＬＬ位相ゲートで
比較をするのではなく制御指令と帰還指令を理論ＩＣと
オペアンプで一致させサーボフィートバックで安定する
ことに出来るSince the magnetic flux is detected by a CT transformer in the SWING element of the three-phase 200-volt power supply terminal without using a sensor, the voltage / current detection of the control commander is commanded by an analog output. According to the present invention, the control command of the PWM signal is used. However, the point different from the stem characteristic of the operational amplifier with the analogous system phase vector is not compared with the PLL phase gate, but the control command and the feedback command are theoretically IC. Can be matched by the operational amplifier and stabilized by the servo feedback.

【０００４】[0004]

【課題を解決するための手段】反応性としてのクローズ
ト制御でアナログ特有の反応性の遅さ反応性の速いデジ
タル処理を利用して磁束ベクトル制御を可能とする電源
端子からＳＷＩＮＧ素子から変流器で磁束を検出するの
でモータの停止時でも磁束検出ができる 指令制御の順として固定子から回転子デジタルＩＣから
アナログＩＣえフィートバック制御に変換ゆえに回転子
から固定子えアナログＩＣのみで帰還している固定子か
ら回転子への電圧電流の通電タイムチャートの磁束制御
で固定子から回転子へと検出時に位相などのずれなどは
理論ＩＣにて一致させ自走させるMeans for Solving the Problems In the closed control as the reactivity, the slowness of the reactivity peculiar to the analog is utilized, and the magnetic flux vector can be controlled using the digital process of the fast reactivity. The magnetic flux can be detected even when the motor is stopped, so the magnetic flux can be detected even when the motor is stopped. The order of command control is to convert from the stator to the rotor digital IC to the analog IC and back to the feedback control. When the current is detected from the stator to the rotor by the magnetic flux control of the voltage / current conduction time chart from the stator to the rotor, the deviation of the phase etc. is matched by the theoretical IC and self-propelled.

【０００５】[0005]

【作用】本発明のサーボシステムは三相二百ボルトの電
源素子からＣＴ変流器にて磁束を検出しオペアンプにて
増幅しておき正弦波の速度電圧指令と三角波との差動増
幅同相成分出力を反転しＣＴから検出した磁束電圧は理
論ＩＣにて位相幅を自動的に調整自走でき波形ずれを解
消し電圧指令と同期位相にて正弦波近似ＰＷＭに制御電
圧として出力する作用を持っているIn the servo system of the present invention, a magnetic flux is detected by a CT transformer from a three-phase, two hundred volt power supply element and amplified by an operational amplifier, and a differentially amplified common-mode component of a sine wave speed voltage command and a triangular wave is used. The output voltage is inverted, and the magnetic flux voltage detected from CT automatically adjusts the phase width by the theoretical IC. It has the function of eliminating the waveform deviation and outputting the control voltage to the sine wave approximation PWM with the voltage command and the synchronous phase. ing

【０００６】[0006]

【発明の効果】三相電源端子のＳＷＩＮＧ素子からＣＴ
変流器から磁束を検出してセンサレスとしてアナログＩ
ＣデジタルＩＣのシステムでの反応性始動性など密閉用
モータへの必要性など考慮した磁束検出制御が出来た差
動増幅器の同相成分による出力を理論ＩＣにより反転さ
せオペアンプのアナログの反応性の遅れを解消させデュ
ーティ比の処理スピードを速くすることが出来た ＣＴ変流器からの磁束フィートバック指令からの位相遅
れなどが問題となるが同相成分を反転した出力はサーボ
システムによって制御指令と一致させ自走を備えているAccording to the present invention, a three-phase power supply terminal SWING element is connected to a CT.
Detects magnetic flux from current transformers and uses analog I
Resonance in the C digital IC system Considering the necessity of the motor for sealing such as the startability, the magnetic flux detection control can be performed. The output by the in-phase component of the differential amplifier is inverted by the theoretical IC and the delay of the analog reactivity of the operational amplifier is delayed. The phase delay from the magnetic flux feedback command from the CT current transformer becomes a problem, but the output in which the in-phase component is inverted matches the control command by the servo system. Be self-propelled

【図面の簡単な説明】[Brief description of the drawings]

【図１】磁束ベクトルクローズドループの全体図FIG. 1 is an overall view of a magnetic flux vector closed loop.

【符号の説明】[Explanation of symbols]

〈１〉磁束検出オペアンプ 〈２〉同相成分差動オペアンプ 〈３〉４０６９ノットＩＣ 〈４〉ＰＷＭ波形出力オペアンプ 〈５〉位相一致調整４０８１アンドＩＣ <1> Magnetic flux detection operational amplifier <2> In-phase component differential operational amplifier <3> 4069 knot IC <4> PWM waveform output operational amplifier <5> Phase matching adjustment 4081 AND IC

Claims (1)

【特許請求の範囲】[Claims] 【請求項】三相電源ＳＷＩＮＧ素子のＣＴ変流器にて高
圧交流の電圧電流を検出して磁束検出したベクトル電圧
をオペアンプのシステムでサーボ増幅で波形整形して磁
束制御系のみでフィートバック制御を行い中間のオペア
ンプにて同相成分除去比を検出し反転した出力を整形さ
せるA high-voltage AC voltage / current is detected by a CT transformer of a three-phase power supply SWING element, and a vector voltage detected as a magnetic flux is subjected to servo amplification by an operational amplifier system, and a feedback control is performed only by a magnetic flux control system. To detect the in-phase component rejection ratio in the middle operational amplifier and shape the inverted output.
JP8275210A 1996-09-09 1996-09-09 Magnet flux-vector closed loop control Pending JPH1084697A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8275210A JPH1084697A (en) 1996-09-09 1996-09-09 Magnet flux-vector closed loop control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8275210A JPH1084697A (en) 1996-09-09 1996-09-09 Magnet flux-vector closed loop control

Publications (1)

Publication Number Publication Date
JPH1084697A true JPH1084697A (en) 1998-03-31

Family

ID=17552236

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8275210A Pending JPH1084697A (en) 1996-09-09 1996-09-09 Magnet flux-vector closed loop control

Country Status (1)

Country Link
JP (1) JPH1084697A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8528498B2 (en) 2007-06-29 2013-09-10 Lam Research Corporation Integrated steerability array arrangement for minimizing non-uniformity

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8528498B2 (en) 2007-06-29 2013-09-10 Lam Research Corporation Integrated steerability array arrangement for minimizing non-uniformity

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