JPS5941189A - Controller for dc motor - Google Patents

Controller for dc motor

Info

Publication number
JPS5941189A
JPS5941189A JP57153256A JP15325682A JPS5941189A JP S5941189 A JPS5941189 A JP S5941189A JP 57153256 A JP57153256 A JP 57153256A JP 15325682 A JP15325682 A JP 15325682A JP S5941189 A JPS5941189 A JP S5941189A
Authority
JP
Japan
Prior art keywords
signal
current
output
controller
speed
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
JP57153256A
Other languages
Japanese (ja)
Inventor
Takeaki Asaeda
健明 朝枝
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP57153256A priority Critical patent/JPS5941189A/en
Publication of JPS5941189A publication Critical patent/JPS5941189A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
    • H02P7/2913—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

Abstract

PURPOSE:To improve the speed controlling performance by varying the switching frequency of a chopper in response to the outer signal level of a current controller. CONSTITUTION:A speed controller 61 outputs as a current reference signal the deviation between a speed reference and a speed detection signal, and a current controller 62 outputs the deviation between a current reference and a current detection signal. A function generator 641A outputs a signal which decreases in proportion to the output of the controller 62 when the output is small and which is constant when the output is higher than the prescribed level. A V/F converter 642 applies a pulse of the frequency proportional to the output signal of the generator 641A to a triangular wave generator 632. A comparator 631 controls the conducting period of a transistor 21 of a chopper 2 in response to the compared result of the triangular signal from the generator 632 and the output signal of the controller 62. In this manner, the performance of speed control can be improved.

Description

【発明の詳細な説明】 この発明は複巻式直流電動機の端子電圧を制御するチョ
ッパ装置の制餌１装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a feed control device for a chopper device that controls the terminal voltage of a compound-wound DC motor.

従来この種の装置として第１図に示すものかあつた。図
において、（１）は直流電源、（２）はこの直流電源（
１）の電圧をスイッチングして可変直流電圧を得るチョ
ッパ装置、（３）はこのチョッパ装置（２）によ　　　
　゛シ躯動される複巻式直流電動機、（４）はこの直流
電動機（３）の電流を検出する電流検出器、（５）はこ
の直流電動機（３）の回転速度を検出する速度検出器、
（６）はとの速度検出器（５）及び電流検出器（４）の
検出信号によシチョッパ装置（２）を導通制御して直流
電動機（５）の速度を制（財）する制御装置である。A conventional device of this type was the one shown in FIG. In the figure, (1) is a DC power supply, and (2) is this DC power supply (
1) A chopper device that switches the voltage to obtain a variable DC voltage; (3) is a chopper device that obtains a variable DC voltage by switching the voltage of 1);
(4) is a current detector that detects the current of this DC motor (3); and (5) is a speed detector that detects the rotational speed of this DC motor (3). ,
(6) A control device that controls the speed of the DC motor (5) by controlling the chopper device (2) to conduction based on the detection signals of the dove speed detector (5) and current detector (4). be.

チョッパ装置（２）は直流電源（１）の電圧をスイッチ
ングするために直流電源（１）に直列接続されたトラン
ジスタ＠Ｉと、このトランジスタ（２１）がオフ時に直
流電動機（３）の電流を還流させるために直流電動機（
３）に並列接続されたダイオードｆ２２から構成される
。The chopper device (2) has a transistor @I connected in series with the DC power supply (1) to switch the voltage of the DC power supply (1), and this transistor (21) circulates the current of the DC motor (3) when it is off. DC motor (
3) consists of a diode f22 connected in parallel to the diode f22.

直流電動機（３）は電機子０◇、直巻巻線□□□及び分
巻巻線（３３１から構成される複巻式直流電動機である
。また制御装置（６）は速度制御器＠Ｄ、電流制御ぎ層
匂、位相器＠３）、発振器（財）及びトランジスタ（２
１）のペース駆動装置（６（へ）から構成される。The DC motor (3) is a compound DC motor consisting of an armature 0◇, a series winding □□□, and a shunt winding (331).The control device (6) is a speed controller @D, Current control layer, phase shifter @3), oscillator (goods) and transistor (2)
It is composed of the pace drive device (1) (6).

次に動作について説明する。速度制帽■０は速度基準信
号と、直流電動機（３）の速度検出器（５）の信号の偏
差を増幅するもので、その出力信号は電流基準信号とし
て電流制御器（６２１に与えられる。電流制御器暁はこ
の電流基準信号と直流電動機（３）の電流検出器（４）
の信号の偏差を増幅するもので、直流電流器（３）の電
流が過大になるのを防止する。位相器＠鞠はこの電流制
御器−の出力信号によりトランジスタ（２０の導通期間
を制御する信号を発生するもので、その周波数は発振器
−に、【り決められる。Next, the operation will be explained. The speed limiter ■0 amplifies the deviation between the speed reference signal and the signal of the speed detector (5) of the DC motor (3), and its output signal is given to the current controller (621) as a current reference signal. The controller Akatsuki uses this current reference signal and the current detector (4) of the DC motor (3).
This amplifies the deviation of the signal, and prevents the current of the DC current generator (3) from becoming excessive. The phase shifter generates a signal that controls the conduction period of the transistor (20) based on the output signal of the current controller, and its frequency is determined by the oscillator.

との発振器１菊は速度検出器（５）の信号により、出力
信号である周波数が制御される。この位相器（６３）と
発振器Ｈの具体的な構成は第２図に、またその動作波形
は第８図、第４図に示される。第２図において速度検出
器（５）の出力信号は関数発生器（６４１）に与えられ
、この関数発生器（６４１）は入力信号に対して第４図
のような出力特性を有し、Ｖ／Ｆ変換器（６４２）へ与
えられる。とのＶ／１ン変換器（６４２）　ｉｉ：アナ
ログ入力信号に比例した周波数の／（ルスを出力するも
ので、第８図（イ）に示すような波形になる。The frequency of the output signal of the oscillator 1 is controlled by the signal from the speed detector (5). The specific configuration of this phase shifter (63) and oscillator H is shown in FIG. 2, and its operating waveforms are shown in FIGS. 8 and 4. In FIG. 2, the output signal of the speed detector (5) is given to a function generator (641), and this function generator (641) has an output characteristic as shown in FIG. 4 with respect to the input signal. /F converter (642). V/1 converter (642) ii: Outputs a signal with a frequency proportional to the analog input signal, and has a waveform as shown in FIG. 8(a).

このＶ／Ｆ変換器（６４２）の出力信号は三角波発生器
（６８２）に与えられて、第８図に示すようにＶ／Ｆ変
換器（６４２）の出力信号に同期した三角波状の信号を
発生する。この三角波発生器（６８２）と、電流ｆＩｉ
ｌ制御器１２）の出力信号は比較器（６８１）に与えら
れ、両者の大きさが比較される。との比較器（６８１）
は第３図（ハ）のように後者が太きいときに「１」の信
号を発生し、前者が太きいときは［０］の信号を発生す
る。この比較器（６８１）の出力が「１」のとき、ベー
ス駆動装置（ｒＡによυ、トランジスタ（２Ｂへベース
電流が供給され、トランジスタ（２１は導通する。The output signal of this V/F converter (642) is given to a triangular wave generator (682), which generates a triangular wave signal synchronized with the output signal of the V/F converter (642) as shown in FIG. Occur. This triangular wave generator (682) and the current fIi
The output signal of the l controller 12) is given to a comparator (681), and the magnitudes of the two are compared. Comparator with (681)
As shown in FIG. 3(C), when the latter is thick, a signal of "1" is generated, and when the former is thick, a signal of "0" is generated. When the output of this comparator (681) is "1", base current is supplied to the transistor (2B) by the base drive device (rA), and the transistor (21) becomes conductive.

この三角波発生器（６４２）の出力信号の傾斜は一定で
あるため、電流制御器（６りの出力信号の大きさによυ
、比較器（６８１）の比較レベルが変化して、トランジ
スタシＩ）の導通期間が変化する。Since the slope of the output signal of this triangular wave generator (642) is constant, the current controller (642) depends on the magnitude of the output signal
, the comparison level of the comparator (681) changes, and the conduction period of the transistor I) changes.

ここでこの従来の制御装置で注目すべき点は、この関数
発生器（６４１）により速度が減少すればＶ／Ｆ変換器
（６４２）の出力周波数を減少させている点である。こ
れはトランジスタ（２Ｉ）がターンオフ時に遅れ時間を
有するために、制御装置（６）のベース信号出力の幅が
非常に狭くなったときに、それに比例してチョッパ装置
（２）の出力電圧が減少しないで、上記トランジスタの
ターンオフの遅れ時間ニよる出力電圧が発生することに
対する対策である。What is noteworthy about this conventional control device is that the function generator (641) reduces the output frequency of the V/F converter (642) when the speed decreases. This is because the transistor (2I) has a delay time when turned off, so when the width of the base signal output of the control device (6) becomes very narrow, the output voltage of the chopper device (2) decreases in proportion to it. This is a countermeasure against the occurrence of an output voltage due to the turn-off delay time of the transistor.

電動機（３）の直流端子電圧は回転数が減少すれば、そ
れに対応して減少するため、回転数が低い領域ではチョ
ッパ装置（２）のスイッチング周波数を減少させること
によυ、トランジスタ（２）のターンオフの遅れ時間の
影響を少なくしている。The DC terminal voltage of the electric motor (3) decreases as the rotational speed decreases, so by reducing the switching frequency of the chopper device (2) in the region of low rotational speed, the voltage at the transistor (2) increases. The influence of the turn-off delay time is reduced.

従来の直流電動機の制（財）装置は以上のように構成さ
れているので、高速運転時に電動機の負荷が軽くなり、
この電動機の端子電圧が減少する場合に、チョッパ装置
（２）の出力電圧を減少できないため、電動機電流が減
少せず、電動機の速度側倒１が正常に行えない欠点があ
った。なおこの電動機は複巻式であるため、負荷が軽く
なれば、電機子電流が減少して電動機の端子電圧も減少
する特性を有している。Conventional DC motor braking devices are configured as described above, which reduces the load on the motor during high-speed operation.
When the terminal voltage of the motor decreases, the output voltage of the chopper device (2) cannot be reduced, so the motor current does not decrease, and the motor speed side shift 1 cannot be performed normally. Since this motor is a compound winding type, it has a characteristic that when the load becomes lighter, the armature current decreases and the terminal voltage of the motor also decreases.

この発明は上記のような従来のものの欠点を除去するた
めになされたもので、電流制御器の出力信号レベルに対
してチョッパ装置のスイッチング周波数を変化させるこ
とにより、電動機の速度や負荷の変化による端子電圧の
減少に、充分追随してチョッパ装置（２）の出力電圧を
減少できる直流電動機の制御装置を提供することを目的
としている。This invention was made to eliminate the drawbacks of the conventional ones as described above, and by changing the switching frequency of the chopper device with respect to the output signal level of the current controller, It is an object of the present invention to provide a control device for a DC motor that can reduce the output voltage of a chopper device (2) sufficiently following the decrease in terminal voltage.

以下、この発明の一実施例を図について説明する。第５
図はこの発明の一実施例を示し、第１図と同符号は同一
のものであって、チョッパ装置（２）の制御装置（６ａ
）は、速度側（財）器（Ｇ１１、電流制御器間、位相器
（６３）、発振器（６４Ａ）及びトラン〉スタ（２１）
のベース駆動装置−から構成され、上記発振器（６４Ａ
）は電流制御器物と位相器Ｉ：ｌｌの中間に接続される
。An embodiment of the present invention will be described below with reference to the drawings. Fifth
The figure shows one embodiment of the present invention, in which the same reference numerals as in FIG. 1 are the same, and the control device (6a
) is the speed side device (G11, between current controllers, phase shifter (63), oscillator (64A) and transistor (21)
The oscillator (64A
) is connected between the current control device and the phase shifter I:ll.

この発振器（６４Ａ）と位相器ｖ３３１の具体的構成を
第６図に示す。図において、（６４１Ａ）は電流制御器
物の出力信号を変換する関数発生器、（６４２）はこの
関数発生器（６４１Ａ）の出力信号をこれに比例した周
波数に変換するＶ／Ｆ変換器、（６８２）はとのＶ／Ｆ
変換器（６４２）の周波数の三角波信号を発生する三角
波発生器、（６８１）はこの三角波発生器（６８２）と
電流制御器物の出力信号を比較する比較器である。The specific configuration of this oscillator (64A) and phase shifter v331 is shown in FIG. In the figure, (641A) is a function generator that converts the output signal of the current control device, (642) is a V/F converter that converts the output signal of this function generator (641A) into a frequency proportional to this, ( 682) Hato no V/F
A triangular wave generator (681) generates a triangular wave signal at the frequency of the converter (642), and a comparator that compares this triangular wave generator (682) with the output signal of the current control device.

関数発生器（６４１Ａ）は第８図のような特性を有し、
電流制御器物の出力が小さい領域（ｅｏよシ小さい領域
）ではこれに比例して減少し、あるレベル（ｅ、）以上
では一定の出力信号（ｅ２）を発生する。Ｖ／Ｆ変換器
（６４２）はこの関数発生器（６４１Ａ）の出力信号に
比例した周波数を発生し、電流制傷１器姉の出力が小さ
い領域では周波数は減少する。三角波発生器（６８２）
と比較器（６８１）は従来のものと同一構成であシ、こ
れらの動作波形な第７図に示す。第７図（イ）はＶ／Ｆ
変換器（６４２）の出力信号を示し、この周波数は第８
図の特性で変化する。第７図（ロ）は三角波発生器（６
Ｂ２）と電流制御器（６２）の出力信号を示したもので
１後者が前者より大きい期間、第７図（ハ）に示すよう
に比較器（６８１）の出力信号は「１」になる。比較器
（６８１）の出力信号が「１」のとき、トランジスタ（
２１）はベース駆動装置＠υを経由して導通状態になる
。電動機（３）の速度が小さいとき、あるいは負荷が軽
いときは電動機（３）の端子電圧は小さくなるが、電流
制御器物は電動機（３）の電流を減少させるべく動作し
、その出力信号は小さくなる。The function generator (641A) has characteristics as shown in FIG.
In a region where the output of the current control device is small (region as small as eo), it decreases in proportion to this, and above a certain level (e,) it generates a constant output signal (e2). The V/F converter (642) generates a frequency proportional to the output signal of the function generator (641A), and the frequency decreases in a region where the output of the current damage suppressor is small. Triangle wave generator (682)
The comparator (681) has the same structure as the conventional one, and their operating waveforms are shown in FIG. Figure 7 (a) shows V/F
The output signal of the converter (642) is shown, and this frequency is the eighth
Varies depending on the characteristics of the figure. Figure 7 (b) shows the triangular wave generator (6
B2) and the output signal of the current controller (62). 1During the period when the latter is larger than the former, the output signal of the comparator (681) becomes "1" as shown in FIG. 7(C). When the output signal of the comparator (681) is "1", the transistor (
21) becomes conductive via the base drive device @υ. When the speed of the motor (3) is low or the load is light, the terminal voltage of the motor (3) becomes small, but the current control device operates to reduce the current of the motor (3), and its output signal becomes small. Become.

ここで、位相器−の入力信号と、チョッパ装置（２１の
出力電圧が比例関係を有しておれば、電流制御器＠りの
出力信号が減少したときにチョッパ装置（２）の出力電
圧も減少し、電動機（３）の端子電圧と平衡する。しか
るに前述のようにトランジスタ（２）の固有のターンオ
フの遅れ時間のために、トランジスタ（２）は最少導通
期間を有しておシ、チョッパ装置（２）の周波数が常に
一定であれば、電流制御器物の出力信号が零（＝Ｊ近に
なってもチョッパ装置（２）の出力電圧は減少しない。Here, if the input signal of the phase shifter and the output voltage of the chopper device (21) have a proportional relationship, when the output signal of the current controller @ decreases, the output voltage of the chopper device (2) will also increase. However, due to the inherent turn-off delay time of the transistor (2) as mentioned above, the transistor (2) has a minimum conduction period and is equal to the voltage at the terminals of the motor (3). If the frequency of the device (2) is always constant, the output voltage of the chopper device (2) will not decrease even if the output signal of the current control device approaches zero (=J).

ことで比較器（６８１）の出力信号のパルス時間を１１
％トランジスタ（２）のターンオフ遅れ時間をｔｗ　、
　Ｖ／Ｆ変換器（６４２）の周波数をｆｏとすれば、直
流電源（１）の電圧ＤＢとチョッパ装置（２）の出力電
圧Ｅｏとの間には〔１］式の関係が成シ立つ。This increases the pulse time of the output signal of the comparator (681) to 11
% Turn-off delay time of transistor (2) tw,
If the frequency of the V/F converter (642) is fo, then the relationship of formula [1] is established between the voltage DB of the DC power supply (1) and the output voltage Eo of the chopper device (2).

〔１］式において、今電流制御器＠りの出力信号が零付
近まで小さくなった場合を考えると、ｔｌは小さくて無
視でき、ｔｗがほぼ一定とすれば、出力電圧Ｅ。In equation [1], if we consider the case where the output signal of the current controller has become small to near zero, tl is small and can be ignored, and if tw is almost constant, the output voltage E.

は周波数ｆｏに比例する。関数発生器（６４１Ａ）の特
性が第８図に示されるように、入力信号すなわち電流制
御器物の出力信号がｅ。より小さくなれば、出力信号は
減少し、〔０式の周波数ｆｏが減少する。電流制御器物
の出力信号をｅｖとすればｅｙ　（ｅ（、のとき、ｆ、
　＝　ｋｌ　ｅｙとなり　、（１）式よシとなる。ここ
でに、は比例定数である。（２）式より　ｂが小さくて
無視できる領域でもチョッパ装置（２）の出力電圧Ｅｏ
は電流制御器＠りの出力信号ｅｙに比例して減少できる
。なおｅｖ”ｅｏのときは周波数ｆ。は一定でｔ、＞ｔ
Ｗとすれば、１．が第７図（ロ）に示すように電流制御
器（転）の出力信号ｅｙに比例し、〔１］式より、中に
２ｅｙｆ６　　　　　　　　　　　［８）となる。ここ
でに２は比例定数である。（５）式よりチョッパ装置（
２）の出力電圧Ｅｏは電流制御器物の出力信号ｅｙに比
例して変化する。is proportional to the frequency fo. As the characteristics of the function generator (641A) are shown in FIG. 8, the input signal, that is, the output signal of the current control device is e. If it becomes smaller, the output signal decreases and the frequency fo of [0 equation] decreases. If the output signal of the current control device is ev, then ey (e(, when f,
= kley, and according to equation (1). Here, is the proportionality constant. From equation (2), even if b is small and can be ignored, the output voltage Eo of chopper device (2)
can be decreased in proportion to the output signal ey of the current controller. Note that when ev”eo, the frequency f is constant and t,>t
If W, then 1. is proportional to the output signal ey of the current controller as shown in FIG. Here, 2 is a proportionality constant. From equation (5), the chopper device (
2) The output voltage Eo changes in proportion to the output signal ey of the current control device.

なお、上記実施例ではチョッパ装置（２）にトランジス
タシυを設けたものを示したが、スイッチング手段とし
て示したものであシ、サイリスタあるいはゲートターン
オフサイリスタであってもよい。In the above embodiment, the chopper device (2) is provided with a transistor υ, but it is shown as a switching means, and may be a thyristor or a gate turn-off thyristor.

以上のように・この発明によれば位相器の周波数を電流
制御器の出力信号によシ変化できるように構成したので
電動機の端子電圧の減少に充分追随してチョッパ装置の
出力電圧を減少でき、速度制御の性能の優れたものが得
られる効果がある。As described above, according to the present invention, since the frequency of the phase shifter is configured to be changeable according to the output signal of the current controller, the output voltage of the chopper device can be decreased by sufficiently following the decrease in the terminal voltage of the motor. This has the effect of providing excellent speed control performance.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の直流電動機の制御装置を示す回路構成図
、第２図は従来の制御装置の具体的回路構成図、第８図
（（１〜（ハ）および第４図は従来の制御装置の動作特
性図、第５図はこの発明の一実施例による直流電動機の
制御装置を示す回路構成図、第６図はこの発明の制御装
置の要部具体的回路構成図、第７図←）〜（ハ）および
第８図はこの発明の制御装置の動作特性図である。 （１）・・・直流電源、（２］・・・チョッパ装置、ｔ
２１＋・・・トランジスタ、（２）°゛°°ダイオード
３〕・・・直流電動機、０υ・・・電機子、０Ｘ５”°
°直巻巻線、（３３１°°・分巻巻線、（４）・・・電
流検出器、（５〕・・・速度検出器、（６）・・・制御
装置、（６１）・・・速度制御器、國・・・電流制御器
、１３１・・・位相器、＠４）・・・発振器、（Ｇ５）
・・・ベース駆動装置、（６８１）　　・比較器、（６
８２）・・・三角波発生器、（６４１，）・・関数発生
器、（６４２）　・Ｖ／Ｆ変換器、（６ａ）　＝−制（
財）装置、（６４Ａ）　”’発振器、（６４１Ａ）・・
・関数発生器なお図中、同一符号は同一、又は相当部分
を示す。 代理人　貌野信− 第１図 第２図 に３ 第３図 （ハ）ｆニニトーー丁＝＝］−−□「■−□　比＃Ｊｔ
？、（６Ｊｌ沖Ｗ力イ１号第４図 第５図Fig. 1 is a circuit configuration diagram showing a conventional control device for a DC motor, Fig. 2 is a specific circuit configuration diagram of a conventional control device, and Fig. 8 ((1 to (c) and Fig. 4 are conventional control 5 is a circuit configuration diagram showing a control device for a DC motor according to an embodiment of the present invention; FIG. 6 is a detailed circuit configuration diagram of the main part of the control device of the present invention; FIG. 7 ) to (c) and FIG. 8 are operational characteristic diagrams of the control device of the present invention. (1)...DC power supply, (2)...Chopper device, t
21+...transistor, (2)°゛°°diode 3]...DC motor, 0υ...armature, 0X5''°
°Series winding, (331°° / shunt winding, (4)...Current detector, (5)...Speed detector, (6)...Control device, (61)...・Speed controller, Country... Current controller, 131... Phase shifter, @4)... Oscillator, (G5)
...Base drive device, (681) ・Comparator, (6
82)...Triangular wave generator, (641,)...Function generator, (642) ・V/F converter, (6a) =-control (
equipment, (64A) ”'oscillator, (641A)...
・Function generator In the figures, the same symbols indicate the same or equivalent parts. Agent Makoto Meno - Fig. 1 Fig. 2 3 Fig. 3 (c)
? , (6Jl Oki W Power I-1 Figure 4 Figure 5

Claims (1)

【特許請求の範囲】[Claims] 、直流電源、これを任意の電圧に変換するチョッパ装置
、このチョッパ装置により駆動される複巻式直流電動機
、この直流電動機の速度および電流を検出して、上記チ
ョッパ装置にスイッチング信号を与える制御装置におい
て、速度制御器と電流制御器および位相器を備え、この
位相器は、上記電流制御器の出力信号と、この信号によ
り可変周波数の信号を発生する発振器の出力周波数に同
期して三角波信号を発生する三角波発生器の出力信号を
比較して上記チョッパ装置にスイッチング信号を与えゐ
ようにしたことを特徴とする直流電動機の制御装置。, a DC power supply, a chopper device that converts the power to an arbitrary voltage, a compound-wound DC motor driven by this chopper device, and a control device that detects the speed and current of this DC motor and provides a switching signal to the chopper device. A speed controller, a current controller, and a phase shifter are provided, and the phase shifter generates a triangular wave signal in synchronization with the output signal of the current controller and the output frequency of an oscillator that generates a variable frequency signal using this signal. 1. A control device for a DC motor, characterized in that a switching signal is provided to the chopper device by comparing output signals of triangular wave generators.
JP57153256A 1982-08-31 1982-08-31 Controller for dc motor Pending JPS5941189A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57153256A JPS5941189A (en) 1982-08-31 1982-08-31 Controller for dc motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57153256A JPS5941189A (en) 1982-08-31 1982-08-31 Controller for dc motor

Publications (1)

Publication Number Publication Date
JPS5941189A true JPS5941189A (en) 1984-03-07

Family

ID=15558475

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57153256A Pending JPS5941189A (en) 1982-08-31 1982-08-31 Controller for dc motor

Country Status (1)

Country Link
JP (1) JPS5941189A (en)

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