JPH0472241B2 - - Google Patents

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Publication number
JPH0472241B2
JPH0472241B2 JP31784A JP31784A JPH0472241B2 JP H0472241 B2 JPH0472241 B2 JP H0472241B2 JP 31784 A JP31784 A JP 31784A JP 31784 A JP31784 A JP 31784A JP H0472241 B2 JPH0472241 B2 JP H0472241B2
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JP
Japan
Prior art keywords
section
signal
current
output
voltage
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
Application number
JP31784A
Other languages
Japanese (ja)
Other versions
JPS60144801A (en
Inventor
Yoichi Tone
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co Ltd
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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP31784A priority Critical patent/JPS60144801A/en
Publication of JPS60144801A publication Critical patent/JPS60144801A/en
Publication of JPH0472241B2 publication Critical patent/JPH0472241B2/ja
Granted legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B9/00—Safety arrangements
    • G05B9/02—Safety arrangements electric
    • G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Safety Devices In Control Systems (AREA)

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は、自動制御装置に係り、特に多重化さ
れた自動制御装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an automatic control device, and more particularly to a multiplexed automatic control device.

〔発明の技術的背景とその問題点〕[Technical background of the invention and its problems]

たとえば発電プラントの自動制御装置には、従
来より高信頼性のニーズが高い。高信頼化の一つ
の手法としては使用部品の選別管理があるが、近
年の自動制御装置への高級能化の要求は、部点数
の増大及び多品種化を招来しているので、単なる
部品管理のみでは充分な信頼性を得られぬ事態に
なりつつある。かかる事態においては、装置の多
重化（冗長化）により信頼度の向上を図ることが
必要であり、部分的には従来より、多重化が実現
されている。 For example, there is a greater need for high reliability in automatic control equipment for power generation plants than in the past. One way to improve reliability is to manage the selection of parts used, but in recent years the demand for higher functionality in automatic control equipment has led to an increase in the number of parts and a greater variety of products, so parts management is simply a matter of management. The situation is becoming such that sufficient reliability cannot be obtained only by using In such a situation, it is necessary to improve reliability by multiplexing (redundancy) of devices, and multiplexing has been partially achieved in the past.

一般に自動制御装置は、制御対象の状態を検知
する検出部と、検出された状態量と設定目標値と
を比較演算し両者を一致させるべく補正信号を出
力する制御部と、補正信号を増幅或は変換して制
御対象を直接操作する増幅部として区分される。
従来より多重化の実施されているものの多くは検
出部と制御部までであつた。 In general, an automatic control device includes a detection unit that detects the state of a controlled object, a control unit that compares and calculates the detected state quantity and a set target value and outputs a correction signal to make them match, and a control unit that amplifies or amplifies the correction signal. is classified as an amplification unit that converts and directly manipulates the controlled object.
Conventionally, multiplexing has been implemented only in the detection section and the control section.

第１図はこのような例を示すもので、ブラント
の制御対象６の状態量は、多重化された検出部２
により検知されそれぞれの検出部２は対応する多
重化された制御部３へ、現在の状態量を信号とし
て送る。多重化された制御部３は受け取つた現在
の状態量を、設定目標値と比較し、補正信号を下
流へ出力する。信号選択部４は、多重化された制
御部３の出力から、所定の論理に従つて一つの妥
当な値を選択し、これを増幅部５に伝える。増幅
部５は選択された補正信号を増幅あるいは変換し
て制御対象６を操作する。 FIG. 1 shows such an example, in which the state quantity of Brandt's controlled object 6 is determined by the multiplexed detection unit 2.
Each detection unit 2 sends the current state quantity as a signal to the corresponding multiplexed control unit 3. The multiplexed control unit 3 compares the received current state quantity with a set target value and outputs a correction signal downstream. The signal selection section 4 selects one appropriate value from the multiplexed outputs of the control section 3 according to a predetermined logic, and transmits this to the amplification section 5. The amplifying section 5 amplifies or converts the selected correction signal to operate the controlled object 6.

従つて検出部２或は制御部３で異常が発生した
場合には、信号選択部４において異常信号を棄却
することにより、自動制御装置１としての健全性
を確保することができたが、増幅部５において異
常が発生した場合は、自動制御装置１に正常な運
転は不可能であつた。 Therefore, when an abnormality occurs in the detection section 2 or the control section 3, the soundness of the automatic control device 1 can be ensured by rejecting the abnormal signal in the signal selection section 4. If an abnormality occurred in the section 5, the automatic control device 1 would not be able to operate normally.

一方、これに対して、増幅部５を多重化したも
のもある。第２図はその一例を示すもので、多重
化された増幅部５は信号切換器７に信号を送り、
信号切換器７は所定の論理に従つて信号を選択す
る。しかしながらこの方式の信頼性は、切換論理
の信頼性による所が大きく、また、電力増幅後の
大電流切換となる為、信号切替器７自体の寿命も
問題となる。 On the other hand, there is also one in which the amplifying section 5 is multiplexed. FIG. 2 shows an example, in which the multiplexed amplifier section 5 sends a signal to the signal switch 7,
The signal switch 7 selects a signal according to predetermined logic. However, the reliability of this method largely depends on the reliability of the switching logic, and since a large current is switched after power amplification, the life of the signal switch 7 itself is also a problem.

そこで第３図に示すようにしたものがある（特
願昭57−129523号）。これは電流加算により、制
御対象６への操作信号を得、これを各増幅部５へ
帰還して補正を行なうことにより多重化増幅部を
実現しようとするものである。これによつて、そ
れなりの効果をあげているものの出力電流バラン
スの欠如によつて過大な電力を消費することがあ
る。すなわち、第３図における入力側への帰還信
号は三つの出力電流の和であり、各増幅部間の電
流負担を制御する要素はない。従つて、各演算増
幅器１０や各電圧／電流変換器１１にゲイン変化
やドリフト等が発生した場合、出力電流分担が変
動するので、電力消費が通常の均衝状態に比して
大きくなることがある。 Therefore, there is a device as shown in Fig. 3 (Japanese Patent Application No. 129523/1982). This is intended to realize a multiplexed amplification section by obtaining an operation signal to the controlled object 6 by current addition, and feeding it back to each amplification section 5 for correction. Although this is somewhat effective, excessive power may be consumed due to lack of output current balance. That is, the feedback signal to the input side in FIG. 3 is the sum of three output currents, and there is no element for controlling the current burden between each amplifier section. Therefore, if a gain change or drift occurs in each operational amplifier 10 or each voltage/current converter 11, the output current sharing will fluctuate, so power consumption may become larger than in a normal balanced state. be.

〔発明の目的〕[Purpose of the invention]

本発明は以上の点に鑑みてなされたもので、増
幅部の多重化を基本とし、切換部選択部等を大電
流部位に配備せず、省電力、高信頼度の自動制御
装置を供給することをその目的とする。 The present invention has been made in view of the above points, and provides a power-saving, highly reliable automatic control device based on multiplexing of amplification sections, without disposing a switching section selection section, etc. in a large current section. Its purpose is to

〔発明の概要〕[Summary of the invention]

本発明は、制御対象の状態量と、設定目標値と
を比較演算して求めた制御対象の状態量を補正信
号を増幅または変換する為の増幅部を多重化した
自動制御装置において、その多重化された増幅部
からの信号を加算して制御対象へ操作信号を出力
する加算部と、その加算部の出力及び自己の増幅
部の出力を帰還して、上記補正信号と比較演算し
増幅部出力を補正する為の演算増幅部とを付加し
たことを特徴とする。 The present invention provides an automatic control device that multiplexes amplification units for amplifying or converting a correction signal from the state quantity of a controlled object obtained by comparing and calculating the state quantity of the controlled object and a set target value. an adding section which adds the signals from the converted amplifier section and outputs an operation signal to the controlled object, and an amplifier section which feeds back the output of the adding section and the output of its own amplifier section, compares it with the correction signal, and calculates the operation signal. It is characterized by the addition of an operational amplification section for correcting the output.

〔発明の実施例〕[Embodiments of the invention]

第４図に本発明の一実施例を示す。第４図にお
いて、制御部３からの補正信号は入力抵抗８によ
り受信された後、帰還抵抗９により受信された制
御対象６への操作信号及び帰還抵抗１４、分圧抵
抗１５，１６，１７により受信された出力電流の
和と比較演算される。演算増幅器１０は、前記演
算を行なつた後、操作信号と補正信号の差を小さ
くする様、また、出力電流と補正信号の差をも小
さくする様に、電圧／電流変換器１１に修正を加
える。電圧／電流変換器１１の出力は、電流検出
抵抗１３を流れ、その両端の電位差が帰還抵抗１
４及び分圧抵抗１５，１６，１７を通じて演算増
幅器１０へ帰還される。また、一方、電圧／電流
変換器１１の出力は電流加算されて、制御対象６
を流れ、接地抵抗１２により電圧信号に復帰す
る。各増幅部５は前記電圧信号を帰還信号として
受信し、前記の電位差帰還と合わせて修正動作を
繰り返す。以上により等しい入力電圧の下では各
増幅部の出力電流分担は相等しい値に落着く。 FIG. 4 shows an embodiment of the present invention. In FIG. 4, the correction signal from the control unit 3 is received by the input resistor 8, and then the operation signal to the controlled object 6 received by the feedback resistor 9, the feedback resistor 14, and the voltage dividing resistors 15, 16, 17. A comparison operation is performed with the sum of the received output currents. After performing the calculation, the operational amplifier 10 modifies the voltage/current converter 11 so as to reduce the difference between the operation signal and the correction signal, and also to reduce the difference between the output current and the correction signal. Add. The output of the voltage/current converter 11 flows through the current detection resistor 13, and the potential difference between the two ends of the current detecting resistor 13 is the feedback resistor 1.
4 and voltage dividing resistors 15, 16, and 17 to be fed back to the operational amplifier 10. On the other hand, the output of the voltage/current converter 11 is added with a current, and the output of the voltage/current converter 11 is added to the
The voltage flows through the ground resistor 12 and returns to a voltage signal. Each amplifier section 5 receives the voltage signal as a feedback signal, and repeats the correction operation together with the potential difference feedback. As described above, under equal input voltages, the output current share of each amplifier section settles to an equal value.

次に、以上の動作を説明する。いま入力抵抗８
をRi、帰還抵抗９をR1、帰還抵抗１４をR2電流
検出抵抗１３をｒとし、分圧抵抗１５をR2、16
をRi、１７をR1にそれぞれ等しくおく。また、
接地抵抗１２をＲとし、これを流れる操作信号電
流をＩ、各増幅部５の出力電圧をV0、出力電流
をi1、i2、i3、入力電圧をVi1、Vi2、Vi3とする。 Next, the above operation will be explained. Now input resistance 8
is Ri, feedback resistor 9 is R 1 , feedback resistor 14 is R 2 current detection resistor 13 is r, voltage dividing resistor 15 is R 2 , 16
Let Ri be equal to Ri, and 17 be equal to R 1 . Also,
The grounding resistor 12 is R, the operation signal current flowing through it is I, the output voltage of each amplifier section 5 is V 0 , the output current is i 1 , i 2 , i 3 , and the input voltage is Vi 1 , Vi 2 , Vi 3 shall be.

この時、キルヒホツフの法則から、演算増幅器
１０のマイナス入力電圧V-及びプラス入力電圧
V+を求めると、 V-＝１／RiVi1＋１／R1RI＋１／R2（V0＋ri1）／１／
Ri＋１／R1＋１／R2……(1) V+＝R1Ri／R1＋R2／R2＋R1Ri／R1＋RiVo ＝１／R2／１／Ri＋１／R1＋１／R2Vo ……(2) 一方、演算増幅器の動作原理から、マイナス入
力電圧V-とプラス入力電圧V+とは等しいので、
下記(3)式が成り立つ。 At this time, from Kirchhoff's law, the negative input voltage V - and the positive input voltage of the operational amplifier 10
To calculate V + , V - = 1/RiVi 1 +1/R 1 RI+1/R 2 (V 0 +ri 1 )/1/
Ri+1/R 1 +1/R 2 ...(1) V + =R 1 Ri/R 1 +R 2 /R 2 +R 1 Ri/R 1 +RiVo = 1/R 2 /1/Ri+1/R 1 +1/R 2 Vo ……(2) On the other hand, according to the operational principle of operational amplifiers, the negative input voltage V - and the positive input voltage V + are equal, so
The following formula (3) holds true.

V-＝V+ ……(3) (1)〜(1)式より整理して １／R2ri1＋１／R1RI＋１／RiVi1＝０ ……(4) また、他の二つの演算増幅器についても同様に
して １／R2ri2＋１／R1RI＋１／RiVi2＝０ ……(5) １／R2ri3＋１／R1RI＋１／RiVi3＝０ ……(6) ここで第４図の回路構成から Ｉ＝i1＋i2＋i3 ……(7) また、入力電圧Vi1、Vi2、Vi3がすべて等しい
とすると Vi1＝Vi2＝Vi3＝Vi ……(8) (7)、(8)を(4)〜(6)へ代入して整理すると （ｒ／R2＋Ｒ／R1）i1＋Ｒ／R1i2＋Ｒ／R1i3＝−１／
RiVi…… (9) Ｒ／R1i1＋（ｒ／R2＋Ｒ／R1）i2＋Ｒ／R1i3＝−１／
RiVi……(10) Ｒ／R1i1＋Ｒ／R1i2＋（ｒ／R2＋Ｒ／R1）i3＝−１／
RiVi……(11) (9)、(10)、(11)を解いて下記(12)を得る。すなわち各
増
幅部の出力電流は相等しい。 V - =V + ……(3) Organizing from equations (1) to (1), 1/R 2 ri 1 + 1/R 1 RI + 1/RiVi 1 = 0 ……(4) Also, the other two operations Similarly for the amplifier: 1/R 2 ri 2 +1/R 1 RI+1/RiVi 2 =0...(5) 1/R 2 ri 3 +1/R 1 RI+1/RiVi 3 =0...(6) Here From the circuit configuration in Figure 4, I = i 1 + i 2 + i 3 ...(7) Also, if the input voltages Vi 1 , Vi 2 , and Vi 3 are all equal, Vi 1 = Vi 2 = Vi 3 = Vi ... ( 8) Substituting (7) and (8) into (4) to (6) and rearranging: (r/R 2 +R/R 1 )i 1 +R/R 1 i 2 +R/R 1 i 3 = -1 /
RiVi... (9) R/R 1 i 1 + (r/R 2 + R/R 1 ) i 2 + R/R 1 i 3 = -1/
RiVi……(10) R/R 1 i 1 +R/R 1 i 2 +(r/R 2 +R/R 1 )i 3 =-1/
RiVi...(11) Solve (9), (10), and (11) to obtain (12) below. In other words, the output currents of each amplifier section are equal in phase.

i1＝i2＝i3＝−１／ｒ／R2＋3R／R1・Vi／Ri……(12) これに対し、第３図の従来例では、各増幅部の
出力電流は一意的には定まらない。このことを以
下に示す。第３図のものは第４図の回路で帰還抵
抗１４（R2）を無限大にし、かつ電流検出抵抗
１３(r)を０にしたものであるから、前記(9)〜(11)式
においてR2＝∞、ｒ＝０とおけばいずれの式も
下記(13)式のようになり、従来例では各増幅部５の
出力電流i1、i2、i3は不定となる。 i 1 = i 2 = i 3 = -1/r/R 2 +3R/R 1・Vi/Ri...(12) On the other hand, in the conventional example shown in Fig. 3, the output current of each amplifier section is unique. It is not determined. This is shown below. The circuit shown in Figure 3 is the same as the circuit shown in Figure 4, with the feedback resistor 14 (R 2 ) set to infinity and the current detection resistor 13 (r) set to 0, so the equations (9) to (11) above If R 2 =∞ and r=0, both equations become as shown in equation (13) below, and in the conventional example, the output currents i 1 , i 2 , and i 3 of each amplifier section 5 are indefinite.

Ｒ／R1i1＋Ｒ／R1i2＋Ｒ／R1i3＝−１／RiVi……(13) 次に、第４図に示す実施例での異常時の回路動
作を説明する。たとえば一系統の演算増幅器また
は電圧／電流変換器が異常高の信号を出し続けた
とする。この時、残りの系統は、接地抵抗１２に
流れる異常高電流を帰還信号として検知し、これ
を補償するように動作する。決局、操作信号は増
幅部５への入力に相当する値に復帰する。以下、
一系統異常低または、一系統断の場合にも同様に
して異常値が補償され、操作信号としては入力相
当の値を得ることができる。 R/R 1 i 1 +R/R 1 i 2 +R/R 1 i 3 =-1/RiVi (13) Next, the circuit operation at the time of abnormality in the embodiment shown in FIG. 4 will be explained. For example, suppose that one system of operational amplifiers or voltage/current converters continues to output abnormally high signals. At this time, the remaining systems detect the abnormally high current flowing through the grounding resistor 12 as a feedback signal and operate to compensate for this. At the end of the game, the operation signal returns to the value corresponding to the input to the amplification section 5. below,
Even when one system is abnormally low or one system is disconnected, the abnormal value is compensated for in the same way, and a value corresponding to the input can be obtained as the operation signal.

以上の動作を数式により説明すると、まず、正
常時の操作信号電流Ｉは、(7)，(12)式より Ｉ＝−３／ｒ／R2＋3R／R1・Vi／Ri ……(14) ｒ／R2＜＜Ｒ／R1とすると、 Ｉ＝−R1／Ｒ・Vi／Ri ……(15) 一系統異常については、第３系統の異常を仮定
し、(9)〜(11)式よりi1、i2を求めると、 i1＝i2＝−１／ｒ／R2＋2R／R1（１／RiVi＋Ｒ／R1i3
）……(16) よつて、一系統異常時の操作信号電流Ｉは(7)，(16)
式より Ｉ＝−２／ｒ／R2＋2R／R1・Vi／Ri＋ｒ／R2ｒ／R2＋
2R／R1i3
……(17) ｒ／R2≪Ｒ／R1とすると Ｉ＝−R1／Ｒ・Vi／Ri ……(18) となつて正常時の値に等しい。 To explain the above operation using a mathematical formula, first, the operation signal current I during normal operation is calculated from formulas (7) and (12) as follows: I=-3/r/R 2 +3R/R 1・Vi/Ri ……(14 ) r/R 2 <<R/R 1 , then I=-R 1 /R・Vi/Ri...(15) Regarding the abnormality in one system, assuming the abnormality in the third system, (9)～( Calculating i 1 and i 2 from formula 11), i 1 = i 2 = -1/r/R 2 +2R/R 1 (1/RiVi+R/R 1 i 3
 )...(16) Therefore, the operation signal current I when one system is abnormal is (7), (16)
From the formula I=-2/r/R 2 +2R/R 1・Vi/Ri+r/R 2 r/R 2 +
2R/R 1 i 3
...(17) When r/R 2 <<R/R 1 , I=-R 1 /R・Vi/Ri ...(18) and is equal to the normal value.

また、本発明は、例えば三重コイル加算形の電
磁石ないしは、その応用である電油変換器への適
用も可能である。その実施例を第５図に示す。図
中の制御対象６ほ三つのコイルを均等に巻いた電
磁石であり、その電磁力は三つのコイルの電流の
加算値に比例する。この三つのコイルに対応して
第４図のものと同等の三重化の増幅部を接続する
ことにより、任意の増幅部故障コイル断線あるい
は接続ケーブル断線に対しても、正常動作の可能
な電磁力発生システム（電油変換器）とすること
ができる。 Further, the present invention can also be applied to, for example, a triple coil addition type electromagnet or an electro-hydraulic converter that is an application thereof. An example thereof is shown in FIG. The controlled object 6 in the figure is an electromagnet with three coils evenly wound, and its electromagnetic force is proportional to the sum of the currents of the three coils. By connecting a triplex amplifier section equivalent to the one in Figure 4 corresponding to these three coils, the electromagnetic force allows normal operation even if the amplifier section malfunctions or the connection cable is disconnected. It can be a generation system (electro-hydraulic converter).

尚、以上の説明では三重系を例にとり説明した
が、これに留まるものではなく、二重系、四重系
…と任意の多重系への適用が可能である。また、
一系統異常時の誤差は 大略ｒ／R2／ｒ／R2＋2R／R1i3により評価されるが、 ｒ／R2をＲ／R1に対して1/100程度とし、かつ電圧／電 流変換部に適切な電流リミツト機能を設けてやる
ことにより、定格値の１％程度に押えることが可
能である。 Although the above explanation has been made using a triplex system as an example, the present invention is not limited to this, and can be applied to any multiplex system such as a doublex system, a quadruple system, etc. Also,
The error when one system is abnormal is roughly evaluated by r/R 2 / r/R 2 + 2R/R 1 i 3 , but r/R 2 is about 1/100 of R/R 1 , and voltage/ By providing the current converter with an appropriate current limiting function, it is possible to limit the current to about 1% of the rated value.

さらに、故障診断機能を付加することも可能で
あり、例えば第６図に示す如く、電流検出抵抗の
上流側の電圧をモニターし、そのバランスを監視
するのみで容易に二系統の異常を検出することが
できる。 Furthermore, it is also possible to add a fault diagnosis function; for example, as shown in Figure 6, abnormalities in two systems can be easily detected by simply monitoring the voltage on the upstream side of the current detection resistor and monitoring its balance. be able to.

〔発明の効果〕〔Effect of the invention〕

以上説明した如く、本発明によれは、従来の自
動制御装置において実現が困難であつた増幅部の
多重化を、信頼度、電力消費等を悪化させること
なく達成し、加算形操作端との併用とも合わせ
て、システムの総合信頼度向上が可能であり、そ
の改善効果は大きいといえる。 As explained above, according to the present invention, multiplexing of amplifier sections, which was difficult to realize in conventional automatic control devices, can be achieved without deteriorating reliability, power consumption, etc. When used in combination, it is possible to improve the overall reliability of the system, and the improvement effect can be said to be large.

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

第１図は従来の自動制御装置を示すブロツク
図、第２図は従来の多重化増幅部の一例を示すブ
ロツク図、第３図はその改良形の一例を示すブロ
ツク図、第４図は本発明の一実施例を示すブロツ
ク図、第５図は電油変換器への応用例を示すブロ
ツク図、第６図は故障診断機能を付加した一実施
例を示すブロツク図である。 １……自動制御装置、２……検出部、３……制
御部、４……信号選択部、５……増幅部、６……
制御対象、７……信号切換部、８……入力抵抗、
９，１４……帰還抵抗、１０……演算増幅器、１
１……電圧／電流変換器、１２……接地抵抗、１
３……電流検出抵抗、１５，１６，１７……分圧
抵抗、１８……故障診断回路。 Fig. 1 is a block diagram showing a conventional automatic control device, Fig. 2 is a block diagram showing an example of a conventional multiplexing amplifier, Fig. 3 is a block diagram showing an example of an improved version thereof, and Fig. 4 is a block diagram showing an example of the conventional multiplexing amplifier. FIG. 5 is a block diagram showing an example of application to an electro-hydraulic converter, and FIG. 6 is a block diagram showing an example in which a fault diagnosis function is added. DESCRIPTION OF SYMBOLS 1... Automatic control device, 2... Detection section, 3... Control section, 4... Signal selection section, 5... Amplification section, 6...
Controlled object, 7...Signal switching section, 8...Input resistance,
9, 14...Feedback resistor, 10...Operation amplifier, 1
1... Voltage/current converter, 12... Earthing resistor, 1
3... Current detection resistor, 15, 16, 17... Voltage dividing resistor, 18... Failure diagnosis circuit.

Claims (1)

【特許請求の範囲】[Claims] １ 制御対象の状態量を検出する検出部と、前記
状態量と設定目標値とを比較演算し前記状態量を
補正する信号を出力する制御部と、前記補正信号
を増幅変換して前記制御対象へ操作信号を出力す
る増幅部とからなる自動制御装置において、前記
増幅部を多重化し、前記多重化された増幅部から
の信号を加算して前記制御対象へ操作信号を出力
する加算部と、前記多重化された該増幅部の出力
と前記加算部の出力とを帰還して制御部からの補
正信号と比較算し該増幅部出力を補正する演算増
幅部とを付加したことを特徴とする自動制御装
置。1. A detection unit that detects the state quantity of the controlled object, a control unit that compares and calculates the state quantity and a set target value and outputs a signal that corrects the state quantity, and amplifies and converts the correction signal to detect the state quantity of the controlled object. An automatic control device comprising: an amplifying section that outputs an operating signal to the control target; The present invention is characterized in that an operational amplification section is added that feeds back the multiplexed output of the amplification section and the output of the addition section, compares and calculates the output with a correction signal from the control section, and corrects the output of the amplification section. Automatic control device.
JP31784A 1984-01-06 1984-01-06 Automatic controller Granted JPS60144801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31784A JPS60144801A (en) 1984-01-06 1984-01-06 Automatic controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31784A JPS60144801A (en) 1984-01-06 1984-01-06 Automatic controller

Publications (2)

Publication Number Publication Date
JPS60144801A JPS60144801A (en) 1985-07-31
JPH0472241B2 true JPH0472241B2 (en) 1992-11-17

Family

ID=11470526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31784A Granted JPS60144801A (en) 1984-01-06 1984-01-06 Automatic controller

Country Status (1)

Country Link
JP (1) JPS60144801A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6270902A (en) * 1985-09-24 1987-04-01 Toshiba Corp Controller for current output multiplexing
CN112217391B (en) * 2020-10-16 2021-09-14 苏州浪潮智能科技有限公司 Power converter voltage output design method, system, terminal and storage medium

Also Published As

Publication number Publication date
JPS60144801A (en) 1985-07-31

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