JPH0334304B2 - - Google Patents
Info
- Publication number
- JPH0334304B2 JPH0334304B2 JP56052031A JP5203181A JPH0334304B2 JP H0334304 B2 JPH0334304 B2 JP H0334304B2 JP 56052031 A JP56052031 A JP 56052031A JP 5203181 A JP5203181 A JP 5203181A JP H0334304 B2 JPH0334304 B2 JP H0334304B2
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- control circuit
- voltage
- output
- circuit
- 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
- 230000006698 induction Effects 0.000 claims description 3
- 230000006870 function Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 101100524645 Toxoplasma gondii ROM5 gene Proteins 0.000 description 1
- 230000004044 response Effects 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Inverter Devices (AREA)
Description
【発明の詳細な説明】
この発明はインバータ装置、特に出力周波数に
対する出力電圧を制御する制御回路に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inverter device, and particularly to a control circuit that controls an output voltage with respect to an output frequency.
従来のこの種の制御回路として第１図に示すア
ナログ式のものがある。同図において、１は周波
数指令回路、２は周波数制御回路、３は関数発生
器、４は電圧制御回路である。 As a conventional control circuit of this type, there is an analog type control circuit shown in FIG. In the figure, 1 is a frequency command circuit, 2 is a frequency control circuit, 3 is a function generator, and 4 is a voltage control circuit.
次に第１図に示したものの動作について説明す
る。周波数指令回路１よりの周波数指令は周波数
制御回路２に加えられインバータの出力周波数を
制御するが、これと同時に周波数指令は関数発生
器３にも加えられる。この関数発生器３は周波数
指令入力に対してある関数の出力を出し、これが
電圧制御回路４に入力されインバータの出力電圧
を制御する。従つてインバータの出力電圧は出力
周波数に対しある関数関係を持つことになる。 Next, the operation of the device shown in FIG. 1 will be explained. A frequency command from a frequency command circuit 1 is applied to a frequency control circuit 2 to control the output frequency of the inverter, and at the same time, the frequency command is also applied to a function generator 3. This function generator 3 outputs a certain function in response to a frequency command input, which is input to a voltage control circuit 4 to control the output voltage of the inverter. Therefore, the output voltage of the inverter has a certain functional relationship with the output frequency.
一般にインバータ装置の出力は周波数／電圧＝
一定など出力周波数と出力電圧はある関数関係が
必要であるが、上記関数発生器３を必要な関数を
出力すべく構成しておけば特定の関数関係が得ら
れるわけである。 Generally, the output of an inverter device is frequency/voltage =
A certain functional relationship is required between the output frequency and the output voltage, such as constant, but if the function generator 3 is configured to output a necessary function, a specific functional relationship can be obtained.
ところで、従来のインバータ装置の制御回路は
以上のように構成されているので、出力周波数Ｆ
に対する出力電圧Ｖの関係（以下Ｖ／Ｆパターン
と称する）は１種類に限定され、しかもこのＶ／
Ｆパターンが複雑な関数関係を必要とする場合は
関数発生器３が複雑な回路構成となる欠点があつ
た。 By the way, since the control circuit of the conventional inverter device is configured as described above, the output frequency F
The relationship of the output voltage V to
When the F pattern requires a complicated functional relationship, the function generator 3 has a drawback of having a complicated circuit configuration.
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、この種の装置にお
いて、簡単な回路構成で種々のＶ／Ｆパターンを
選択ないし実現することを目的としている。 The present invention was made to eliminate the above-mentioned drawbacks of the conventional device, and aims to select or realize various V/F patterns with a simple circuit configuration in this type of device.
制御回路を記憶回路とセレクターとを組合せる
ことにより構成したものである。 The control circuit is constructed by combining a memory circuit and a selector.
この発明においては、記憶回路にあらかじめ複
数種の電圧／周波数パターンを記憶させておき、
この電圧／周波数パターンを負荷である誘導電動
機の必要とするトルクに合わせて適宜スイツチで
選択することにより、インバータ装置の出力を制
御する。 In this invention, a plurality of voltage/frequency patterns are stored in advance in a storage circuit,
The output of the inverter device is controlled by appropriately selecting this voltage/frequency pattern using a switch in accordance with the torque required by the induction motor that is the load.
以下この発明の一実施例を第２図のブロツク図
により説明する。 An embodiment of the present invention will be explained below with reference to the block diagram of FIG.
第２図において第１図と同一符号は同一または
相当部分を示し、５はROM、６はセレクタース
イツチである。 In FIG. 2, the same reference numerals as in FIG. 1 indicate the same or corresponding parts, 5 is a ROM, and 6 is a selector switch.
従来例と同様に周波数指令回路１よりの周波数
指令は周波数制御回路２と同時に記憶回路である
ROM５に入力される。このROM５にはあらか
じめ多種のＶ／Ｆパターンが記憶されており、接
続されたセレクタースイツチ６により選択された
アドレスのROM出力が電圧制御回路４に入力さ
れる。 Similar to the conventional example, the frequency command from the frequency command circuit 1 is sent to the storage circuit at the same time as the frequency control circuit 2.
Input to ROM5. Various V/F patterns are stored in advance in the ROM 5, and the ROM output of the address selected by the connected selector switch 6 is input to the voltage control circuit 4.
このROM５は多種、多様のパターンの記憶が
可能であり、またどんな複雑なパターンも簡単に
記憶させることができるので、セレクタースイツ
チ６によるアドレスの選択という簡単な操作で、
負荷である誘導電動機の必要とする発生トルクな
どに合わせて適宜選択することが可能である。 This ROM 5 is capable of storing a wide variety of patterns, and any complex pattern can be stored easily.
It is possible to select it as appropriate according to the generated torque required by the induction motor which is the load.
なお、上述の説明からも明らかなように、実施
例に示される制御回路は、第１図ののものがアナ
ログ方式であるのに対し、デイジタル方式であ
る。 As is clear from the above description, the control circuit shown in the embodiment is of a digital type, whereas that of FIG. 1 is of an analog type.
このようにこの発明ではROMとセレクタスイ
ツチとを用いこのセレクタスイツチにより所望の
Ｖ／Ｆパターンを選択できるため簡単な回路構成
で種々のＶ／Ｆパターンを実現できる。 As described above, the present invention uses a ROM and a selector switch, and because the selector switch can select a desired V/F pattern, various V/F patterns can be realized with a simple circuit configuration.
第１図は従来のアナログ式のインバータ装置の
制御回路のブロツク図、第２図は本発明によるデ
イジタル式のインバータ装置の制御回路のブロツ
ク図である。図中同一符号は同一または相当部分
を示す。
１…周波数指令回路、２…周波数制御回路、３
…関数発生器、４…電圧制御回路、５…ROM
（read only memory）、６…セレクタースイツ
チ。
FIG. 1 is a block diagram of a control circuit for a conventional analog inverter device, and FIG. 2 is a block diagram of a control circuit for a digital inverter device according to the present invention. The same reference numerals in the figures indicate the same or corresponding parts. 1...Frequency command circuit, 2...Frequency control circuit, 3
...Function generator, 4...Voltage control circuit, 5...ROM
(read only memory), 6...Selector switch.
Claims (1)
力電圧を制御する電圧制御回路とを有し、直流電
力を所定の電圧／周波数をもつ交流電力に変換し
て誘導電動機を制御するインバータ装置の制御回
路において、上記周波数制御回路に出力周波数を
指令する指令信号を出力する周波数指令回路と、
複数種の電圧／周波数パターンを記憶する記憶回
路と、この記憶回路に記憶された電圧／周波数パ
ターンのうち任意のパターンを選択するスイツチ
とを備え、上記記憶回路は上記周波数指令回路が
出力する指令信号の入力により上記スイツチで選
択された電圧／周波数パターンを上記電圧制御回
路へ出力することを特徴とするインバータ装置の
制御回路。1. A control circuit for an inverter device that has a frequency control circuit that controls the output frequency and a voltage control circuit that controls the output voltage, and that controls an induction motor by converting DC power into AC power with a predetermined voltage/frequency. a frequency command circuit that outputs a command signal that commands an output frequency to the frequency control circuit;
The memory circuit includes a memory circuit that stores a plurality of voltage/frequency patterns, and a switch that selects any one of the voltage/frequency patterns stored in the memory circuit, and the memory circuit is configured to respond to commands output by the frequency command circuit. A control circuit for an inverter device, characterized in that the voltage/frequency pattern selected by the switch is output to the voltage control circuit by inputting a signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56052031A JPS57166881A (en) | 1981-04-07 | 1981-04-07 | Control circuit for inverter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56052031A JPS57166881A (en) | 1981-04-07 | 1981-04-07 | Control circuit for inverter device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57166881A JPS57166881A (en) | 1982-10-14 |
| JPH0334304B2 true JPH0334304B2 (en) | 1991-05-22 |
Family
ID=12903435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56052031A Granted JPS57166881A (en) | 1981-04-07 | 1981-04-07 | Control circuit for inverter device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57166881A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60152271A (en) * | 1984-01-19 | 1985-08-10 | Matsushita Electric Ind Co Ltd | Inverter device |
| JPS6237087A (en) * | 1985-08-09 | 1987-02-18 | Fanuc Ltd | Controller for ac motor |
| JPS62262667A (en) * | 1986-05-07 | 1987-11-14 | Daikin Ind Ltd | Inverter control circuit |
| FR2726134B1 (en) * | 1994-10-19 | 1997-01-03 | Physic Plus Sarl | INVERTER WITH CONTROLLED SWITCHES FOR VIEWING AND SELECTING THE CONVERSION STAGES |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5010438A (en) * | 1973-06-06 | 1975-02-03 | ||
| JPS53100429A (en) * | 1977-02-15 | 1978-09-01 | Mitsubishi Electric Corp | Control device of inverter |
| JPS5410923A (en) * | 1977-06-25 | 1979-01-26 | Mitsubishi Electric Corp | Inverter controller |
| JPS63101623A (en) * | 1986-10-20 | 1988-05-06 | Matsushita Electric Ind Co Ltd | High frequency heater |
-
1981
- 1981-04-07 JP JP56052031A patent/JPS57166881A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5010438A (en) * | 1973-06-06 | 1975-02-03 | ||
| JPS53100429A (en) * | 1977-02-15 | 1978-09-01 | Mitsubishi Electric Corp | Control device of inverter |
| JPS5410923A (en) * | 1977-06-25 | 1979-01-26 | Mitsubishi Electric Corp | Inverter controller |
| JPS63101623A (en) * | 1986-10-20 | 1988-05-06 | Matsushita Electric Ind Co Ltd | High frequency heater |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57166881A (en) | 1982-10-14 |
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