JPH023208B2 - - Google Patents
Info
- Publication number
- JPH023208B2 JPH023208B2 JP56203524A JP20352481A JPH023208B2 JP H023208 B2 JPH023208 B2 JP H023208B2 JP 56203524 A JP56203524 A JP 56203524A JP 20352481 A JP20352481 A JP 20352481A JP H023208 B2 JPH023208 B2 JP H023208B2
- Authority
- JP
- Japan
- Prior art keywords
- current
- voltage
- power supply
- converter
- signal
- 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.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 8
- 230000010363 phase shift Effects 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/145—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M7/155—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M7/162—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a bridge configuration
- H02M7/1623—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a bridge configuration with control circuit
- H02M7/1626—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a bridge configuration with control circuit with automatic control of the output voltage or current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4216—Arrangements for improving power factor of AC input operating from a three-phase input voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4233—Arrangements for improving power factor of AC input using a bridge converter comprising active switches
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Voltage And Current In General (AREA)
- Control Of Electrical Variables (AREA)
- Rectifiers (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はパルス幅変調制御され、交流を直流に
変換する変換器（以後、PWM制御変換器と称す
る）の制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a control device for a converter (hereinafter referred to as a PWM control converter) that is controlled by pulse width modulation and converts alternating current to direct current.
最近、自己消弧形の電力半導体素子が開発さ
れ、交流電源電圧を直流に変換するPWM制御変
換器などに用いられている。PWM制御変換器に
おいては、変換器のパルス幅変調制御によりその
交流入力電圧の瞬時値制御が行えるので交流電源
電圧に対して変換器の交流入力電圧の大きさと位
相を制御することにより、交流電源の力率を制御
することができる。
Recently, self-extinguishing power semiconductor devices have been developed and are used in PWM control converters that convert AC power supply voltage to DC. In a PWM control converter, the instantaneous value of the AC input voltage can be controlled by pulse width modulation control of the converter, so by controlling the magnitude and phase of the AC input voltage of the converter with respect to the AC power supply voltage, power factor can be controlled.
従来においては、電源電圧の検出信号をそのま
ま電流位相基準信号として用いている。PWM制
御変換器をオン、オフ制御する電流制御回路には
応答遅れがある。このため電源電流の位相は電流
指令パターンに対して遅れるため電源電圧に対し
て電流が遅れ位相となり電源力率が低下する。
Conventionally, the detection signal of the power supply voltage is used as it is as the current phase reference signal. There is a response delay in the current control circuit that turns on and off the PWM control converter. Therefore, the phase of the power supply current lags behind the current command pattern, so the current lags in phase with respect to the power supply voltage, and the power factor of the power supply decreases.
本発明の目的は、前述した欠点をなくし簡単に
電源力率を1.0に制御するためのPWM制御変換器
の制御装置を提供することにある。 An object of the present invention is to provide a control device for a PWM control converter that eliminates the above-mentioned drawbacks and easily controls the power factor of the power supply to 1.0.
本発明の特徴とするところは交流電源電圧信号
を所定位相だけ進ませた電流指令パターン信号に
電源電流が追従するようにPWM制御変換器をパ
ルス幅変調制御するようにしたことにある。
The feature of the present invention is that the PWM control converter is controlled by pulse width modulation so that the power supply current follows a current command pattern signal obtained by advancing the AC power supply voltage signal by a predetermined phase.
第１図に本発明の一実施例を示す。第１図にお
いて、１は交流電源ACから供給される交流を直
流に変換するPWM制御変換器、２は交流電源
ACと変換器１の間に接続されたリアクトル、３
は変換器１の出力電流の脈動分を吸収するための
平滑コンデンサ、４は変換器１の直流出力電圧を
指令する直流電圧指令回路、５は電圧検出器、６
は直流電圧指令と電圧検出信号の偏差を増巾する
電圧偏差増巾器、７は交流電源（交流系統）の電
圧を検出するための変圧器、１５は変圧器７の出
力電圧位相を所定位相だけ進めるための移回路、
８は増巾器６からの電圧偏差によつて移相回路１
５からの所定位相だけ移相された交流電源電圧信
号を振幅変調した電源電流の電流指令パターン信
号（正弦波信号）を発生する演算回路で電流指令
回路となる。９は電源電流を検出するための電流
検出器、１０は電流指令パターンと電流検出信号
の偏差を比較するための比較器、１１は比較器１
０の出力信号に応じてGTOサイリスタのＰ側及
びＮ側に交互にオン、オフさせるためのゲート信
号を出力するゲートアンプである。比較器１０と
ゲートアンプ１１とで電流制御回路を構成する。
９〜１１に対応した回路は他のＶ相及びＷ相に対
してもあるが、同様であるので説明を省略する。
FIG. 1 shows an embodiment of the present invention. In Figure 1, 1 is a PWM control converter that converts AC supplied from an AC power source AC into DC, and 2 is an AC power source.
Reactor connected between AC and converter 1, 3
is a smoothing capacitor for absorbing the pulsation of the output current of the converter 1; 4 is a DC voltage command circuit that commands the DC output voltage of the converter 1; 5 is a voltage detector; 6
1 is a voltage deviation amplifier that amplifies the deviation between the DC voltage command and the voltage detection signal, 7 is a transformer for detecting the voltage of the AC power supply (AC system), and 15 is a voltage deviation amplifier that amplifies the deviation between the DC voltage command and the voltage detection signal. transfer circuit for advancing only,
8 is a phase shift circuit 1 due to the voltage deviation from the amplifier 6.
The current command circuit is an arithmetic circuit that generates a current command pattern signal (sine wave signal) of a power supply current by amplitude modulating an AC power supply voltage signal phase-shifted by a predetermined phase from 5. 9 is a current detector for detecting the power supply current; 10 is a comparator for comparing the deviation between the current command pattern and the current detection signal; 11 is the comparator 1
This is a gate amplifier that outputs a gate signal to alternately turn on and off the P side and N side of the GTO thyristor according to the output signal of 0. The comparator 10 and the gate amplifier 11 constitute a current control circuit.
Circuits corresponding to numbers 9 to 11 are also provided for the other V and W phases, but since they are similar, their explanations will be omitted.
次にこの回路の動作を説明する。変換器１の交
流入力電流（図示ｉ）は、Ｎ側のGTOサイリス
タあるいはダイオードが導通する際に増加し、逆
にＰ側が導通すると減少する。このような繰返し
を行うため、電源電流は正弦波電流に三角波状電
流が重畳されたものとなる。演算回路８からの電
流指令パターン信号と電流検出器９からの電流検
出信号が比較器１０の入力に加えられる。比較器
１０は両信号を比較し、前者が後者に比べ所定値
以上大となる際においは、Ｎ側GTOサイリスタ
あるいはダイオードがターンオンするように動作
する。逆に前者が後者に比べ所定値以上小となる
際においては、逆にＰ側がターンオンするように
制御する。以上の動作において、電源電圧の検出
信号に対して所定位相進みの電流指令パターン信
号に応じて電源電流が制御されるため、電流指令
パターンに対する電源電流の制御位相遅れが補償
され、電源電流は電源電圧に対して同位相に制御
される。その結果、電源力率はほぼ1.0となるよ
うに制御される。 Next, the operation of this circuit will be explained. The AC input current (i in the figure) of the converter 1 increases when the N-side GTO thyristor or diode conducts, and conversely decreases when the P-side conducts. Because such repetition is performed, the power supply current becomes a sine wave current with a triangular wave current superimposed on it. A current command pattern signal from the arithmetic circuit 8 and a current detection signal from the current detector 9 are applied to the input of the comparator 10. The comparator 10 compares both signals, and when the former is larger than the latter by a predetermined value or more, the N-side GTO thyristor or diode is operated to turn on. Conversely, when the former is smaller than the latter by a predetermined value or more, the P side is controlled to turn on. In the above operation, the power supply current is controlled according to the current command pattern signal with a predetermined phase lead with respect to the power supply voltage detection signal, so the control phase delay of the power supply current with respect to the current command pattern is compensated for, and the power supply current is Controlled to be in phase with the voltage. As a result, the power source power factor is controlled to be approximately 1.0.
したがつて、本発明によれば、電源電流は電源
電圧に対して同位相に制御されるようになり、電
源力率を1.0に制御することができる。
Therefore, according to the present invention, the power supply current is controlled to be in phase with the power supply voltage, and the power supply power factor can be controlled to 1.0.
なお、前述した比較器１０はヒステリシス特性
付のものに限らず、電流指令パターン信号と電流
検出信号を比較増幅して得た変調波信号（正弦信
号）と搬送波信号（三角波信号）を比較しその出
力信号に従いPWM変換器１のGTOサイリスタ
をオンオフする方式であつても同様の効果が得ら
れる。 Note that the comparator 10 described above is not limited to one with a hysteresis characteristic, and compares a modulated wave signal (sine signal) obtained by comparing and amplifying a current command pattern signal and a current detection signal with a carrier wave signal (triangular wave signal). A similar effect can be obtained even if the GTO thyristor of the PWM converter 1 is turned on and off according to the output signal.
第１図は本発明の一実施例を示す構成図であ
る。
１…PWM制御変換器、２…リアクトル、３…
平滑コンデンサ、４…直流電圧指令回路、５…電
圧検出器、６…電圧偏差増巾器、７…電源電圧検
出器、８…演算回路、９…電流検出器、１０…比
較器、１１…ゲートアンプ、１５…移相回路。
FIG. 1 is a block diagram showing an embodiment of the present invention. 1...PWM control converter, 2...reactor, 3...
Smoothing capacitor, 4... DC voltage command circuit, 5... Voltage detector, 6... Voltage deviation amplifier, 7... Power supply voltage detector, 8... Arithmetic circuit, 9... Current detector, 10... Comparator, 11... Gate Amplifier, 15...phase shift circuit.
Claims (1)
れる交流を直流に変換するPWM制御変換器と、
該PWM制御変換器の直流側の電圧検出値と電圧
指令値の電圧偏差を出力する電圧制御手段と、前
記交流電源の交流電圧信号を所定位相だけ進ませ
て出力する移相手段と、該移相された交流電圧信
号の振幅を前記電圧偏差に応じて変化させた電流
指令パターン信号を出力する電流指令手段と、前
記交流電源の電源電流が前記電流指令パターン信
号に追従するように前記PWM制御変換器をパル
ス幅変調制御する電流制御手段とを具備した
PWM制御変換器の制御装置。1. A PWM control converter that is controlled by pulse width modulation and converts alternating current supplied from an alternating current power source into direct current;
a voltage control means for outputting a voltage deviation between a voltage detection value and a voltage command value on the DC side of the PWM control converter; a phase shift means for outputting an AC voltage signal of the AC power supply after advancing it by a predetermined phase; current command means for outputting a current command pattern signal in which the amplitude of the phased AC voltage signal is changed according to the voltage deviation; and the PWM control so that the power supply current of the AC power supply follows the current command pattern signal. and current control means for pulse width modulation control of the converter.
Control device for PWM control converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56203524A JPS58105315A (en) | 1981-12-18 | 1981-12-18 | Controlling method of pwm converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56203524A JPS58105315A (en) | 1981-12-18 | 1981-12-18 | Controlling method of pwm converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58105315A JPS58105315A (en) | 1983-06-23 |
| JPH023208B2 true JPH023208B2 (en) | 1990-01-22 |
Family
ID=16475571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56203524A Granted JPS58105315A (en) | 1981-12-18 | 1981-12-18 | Controlling method of pwm converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58105315A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59194697A (en) * | 1983-04-18 | 1984-11-05 | Toshiba Corp | Drive device for motor |
| JPS6051470A (en) * | 1983-08-30 | 1985-03-22 | Yamaha Motor Co Ltd | Inverter device |
| JPS60234497A (en) * | 1984-04-28 | 1985-11-21 | Toshiba Corp | Controller for motor |
| DE3682033D1 (en) * | 1985-11-21 | 1991-11-21 | Toshiba Kawasaki Kk | CONTROL DEVICE FOR POWER CONVERTER. |
| US5255175A (en) * | 1989-05-15 | 1993-10-19 | Kabushiki Kaisha Toshiba | Power generation system having induction generator and controlled bridge rectifier |
| AU610778B2 (en) * | 1989-05-15 | 1991-05-23 | Kabushiki Kaisha Toshiba | Power generation system |
| FR2675000A1 (en) * | 1991-04-05 | 1992-10-09 | Artus | METHOD AND DEVICE FOR MITIGATING THE EFFECT OF CONDUCTIVE RADIOPARASITATION ON THE ALTERNATIVE POLYPHASE NETWORK. |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49115258A (en) * | 1973-02-16 | 1974-11-02 | ||
| JPS5098175A (en) * | 1974-01-02 | 1975-08-04 | ||
| JPS55111661A (en) * | 1979-02-19 | 1980-08-28 | Hitachi Ltd | Conversion signal synchronizing device |
-
1981
- 1981-12-18 JP JP56203524A patent/JPS58105315A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49115258A (en) * | 1973-02-16 | 1974-11-02 | ||
| JPS5098175A (en) * | 1974-01-02 | 1975-08-04 | ||
| JPS55111661A (en) * | 1979-02-19 | 1980-08-28 | Hitachi Ltd | Conversion signal synchronizing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58105315A (en) | 1983-06-23 |
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