JPS63273921A - Constant power control system for ac power supply - Google Patents
Constant power control system for ac power supplyInfo
- Publication number
- JPS63273921A JPS63273921A JP11004587A JP11004587A JPS63273921A JP S63273921 A JPS63273921 A JP S63273921A JP 11004587 A JP11004587 A JP 11004587A JP 11004587 A JP11004587 A JP 11004587A JP S63273921 A JPS63273921 A JP S63273921A
- Authority
- JP
- Japan
- Prior art keywords
- current
- thyristor
- voltage
- ton
- detector
- 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
Links
- 238000000034 method Methods 0.000 claims description 10
- WLJWJOQWLPAHIE-YLXLXVFQSA-N (2s)-2-[[(2s)-2-[[(2s)-2-[[(2s,3s)-2-amino-3-methylpentanoyl]amino]propanoyl]amino]-3-methylbutanoyl]amino]pentanedioic acid Chemical compound CC[C@H](C)[C@H](N)C(=O)N[C@@H](C)C(=O)N[C@@H](C(C)C)C(=O)N[C@H](C(O)=O)CCC(O)=O WLJWJOQWLPAHIE-YLXLXVFQSA-N 0.000 abstract 3
- 238000001514 detection method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Landscapes
- Dot-Matrix Printers And Others (AREA)
- Control Of Electrical Variables (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、交流電源からヒータへの通電を間欠制御し
てヒータから定電力を発生させる交流電源の定電力制御
方式に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a constant power control method for an AC power source in which constant power is generated from the heater by intermittently controlling the supply of electricity from the AC power source to the heater.
第２図は従来の交流電源の定電力制御方式を示す回路図
であシ、図において、１は交流電源としての電圧発生源
、２はヒータ、３は電圧発生源１からの電力を調整して
ヒータ２の発生電力（消費電力）を制御するサイリスタ
、４はヒータ２の電圧を検出する電圧検出器、５は電圧
検出器４の出力信号を２乗する掛算器、６はヒータ２の
消費電力を設定する設定ポリニーム、７は掛算器５の出
力信号と設定ボリューム６の出力信号とを比較する比較
器、８は比較器７の出力信号でサイリスタ３０オン、オ
フを制御するゲートパルス発生器（以下、ＧＰＧという
。）を示す。Figure 2 is a circuit diagram showing a conventional constant power control method for an AC power supply. 4 is a voltage detector that detects the voltage of the heater 2, 5 is a multiplier that squares the output signal of the voltage detector 4, and 6 is the consumption of the heater 2. 7 is a comparator that compares the output signal of the multiplier 5 with the output signal of the setting volume 6; 8 is a gate pulse generator that controls the on/off of the thyristor 30 with the output signal of the comparator 7; (hereinafter referred to as GPG).
第３図は各電圧を示す波形図であシ、第３図（ａ）は電
圧発生源１の出力電圧を示す波形図、第３図（ｂ）はヒ
ータ２への印加電圧を示す波形図である。FIG. 3 is a waveform diagram showing each voltage, FIG. 3(a) is a waveform diagram showing the output voltage of the voltage generation source 1, and FIG. 3(b) is a waveform diagram showing the voltage applied to the heater 2. It is.
ナオ、ｔｏＮはサイリスタ３０オン期間、ｔｏＦＰハサ
イリスタ３のオフ期間、Ｔはインターバル期間を示す。toN indicates the on period of the thyristor 30, toFP indicates the off period of the thyristor 3, and T indicates the interval period.
次に、動作について説明する。Next, the operation will be explained.
電圧発生源１からヒータ２へ印加する電圧を電圧検出器
４で検出し、電圧検出器４の出力信号を掛算器５で２乗
し、電力に比例した電力フィードバック信号と設定ポリ
ニーム６の出力信号とを比較器７で比較する。The voltage applied from the voltage source 1 to the heater 2 is detected by the voltage detector 4, the output signal of the voltage detector 4 is squared by the multiplier 5, and a power feedback signal proportional to the power and the output signal of the setting polyneum 6 are generated. The comparator 7 compares the
そして、定電力制御を行なうために比較器７の出力信号
に比例させてサイリスタ３０オン、オフ期間ｔＯＮ ’
ｔｏｙ’ｒをＧＰＧ８で制御する。Then, in order to perform constant power control, the thyristor 30 is turned on and off period tON' in proportion to the output signal of the comparator 7.
Control toy'r with GPG8.
このように定電力制御を行なうとき、第３図（ａ）に示
す電圧発生源１の出力電圧をサイリスタ３で第３図（ｂ
）に示すように調整し、サイリスタ３のオン期間ｔ。Ｎ
は商用周波数の毎サイクル０〜２πの全波を通流し、サ
イリスタ３のオフ期間ｔ。ＦＦは同じく毎サイクルのＯ
〜２πの全波を阻止し、比絞的長い周期の通電時間と阻
止時間とを間欠制御することで規定の電圧に調整するも
のである。When performing constant power control in this way, the output voltage of the voltage source 1 shown in FIG. 3(a) is controlled by the thyristor 3 as shown in FIG. 3(b).
), and the on-period t of the thyristor 3 is adjusted as shown in FIG. N
passes a full wave of the commercial frequency from 0 to 2π every cycle, and the off period t of the thyristor 3. FF is also O every cycle.
The full wave of ~2π is blocked, and the voltage is adjusted to a specified value by intermittently controlling the energization time and the blocking time of a relatively long cycle.
したがって、設定ポリニーム６で設定した電力をヒータ
２から発生させることができる。Therefore, the electric power set by the setting polyneme 6 can be generated from the heater 2.
従来の交流電源の定電力制御方式は以上のように構成さ
れているので、電圧変動の発生に対しては定電力制御が
できるが、負荷変動の発生に対しては定電力制御ができ
ないという問題点があった。Since the conventional constant power control method for AC power supplies is configured as described above, the problem is that constant power control can be performed in response to voltage fluctuations, but constant power control cannot be performed in response to load fluctuations. There was a point.
この発明は、上記のような問題点を解消するためになさ
れたもので、負荷変動の発生に対して定電力制御ができ
る交流電源の定電力制御方式を得ることを目的とする。The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a constant power control method for an AC power source that can perform constant power control in response to load fluctuations.
この発明に係る交流電源の定電力制御方式は、電流検出
器で交流電源の交流電流値を直流電流値に変換した平均
値で交流電源を制御するものであるＯ
〔作 用〕
この発明における交流電源の定電力制御方式は、負荷の
通電電流を直流電流値に変換した平均値で交流電源のオ
ン、オフを制御する。The constant power control method for an AC power supply according to the present invention controls the AC power supply using the average value obtained by converting the AC current value of the AC power supply into a DC current value using a current detector. The constant power control method of a power supply controls the on/off of an AC power supply using the average value obtained by converting the current flowing through the load into a DC current value.
以下、この発明の一実施例を図について説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図において、第２図と同一部分には同一符号が付し
てあシ、１１はヒータ２の通電電流を検出して整流した
直流電流値の平均値を出力する電流検出器を示し、変流
器１１Ａ１ダイオード１１Ｂおよび抵抗器１１Ｃで構成
されている。In FIG. 1, the same parts as in FIG. 2 are given the same reference numerals, and 11 indicates a current detector that detects the current flowing through the heater 2 and outputs the average value of the rectified DC current value; It is composed of a current transformer 11A, a diode 11B, and a resistor 11C.
次に１動作について説明する。Next, one operation will be explained.
なお、サイリスタ３がＧＰＧ８によりて間欠制御され、
ヒータ２の発生電力を制御するのは先の説明と同じであ
るので省略し、この発明のポイントとなる設定ボリュー
ム６、比較器７および電流検出器１１について説明する
。In addition, the thyristor 3 is intermittently controlled by GPG8,
Since controlling the power generated by the heater 2 is the same as the previous explanation, the explanation will be omitted, and the setting volume 6, the comparator 7, and the current detector 11, which are the key points of this invention, will be explained.
電流検出器１１の出力信号はサイリスタ３の通電電流の
整流波形の平均値に比例するが、サイリスタ３の通電電
流の整流波形の平均値を工Ａい、サイリスタ３の通電電
流の実効値を１１サイリスタ３の電圧の実効値をｖ１電
圧発生源１の電圧をＥ１サイリスタ３のオン期間をｔ。The output signal of the current detector 11 is proportional to the average value of the rectified waveform of the current flowing through the thyristor 3. However, by adjusting the average value of the rectified waveform of the current flowing through the thyristor 3, the effective value of the current flowing through the thyristor 3 is The effective value of the voltage of the thyristor 3 is v1 The voltage of the voltage source 1 is E1 The on period of the thyristor 3 is t.
Ｎ１サイリスタ３のオン期間ｔ。Ｎの電流実効値をＩｓ
１サイリスタ３のオン、オフ期間ｔ。Ｎ’ｔＯＦＦを合
計したインターバル期間をＴ１ヒータ２の消費電力をＰ
とすると、Ｐ＝ＶＸＩ ・・・（１
）ｖ＝ＥＸ（ｔｏＮ／Ｔ）１／！ ・・・（２）
Ｉ ＝ Ｉ、 Ｘ （ｔｏＮ／Ｔ ） ””
・・＠（３）となシ、第（２）式、第（３）式を第（１
）式の代入すると、Ｐ ＝ Ｅ Ｘ ＩＢ Ｘ （ｔｏ
Ｎ／Ｔ ） ＠・・（４）となる。ON period t of N1 thyristor 3. The effective current value of N is Is
1 thyristor 3 on/off period t. The interval period that is the sum of N'tOFF is T1, and the power consumption of heater 2 is P.
Then, P=VXI...(1
)v=EX(toN/T)1/! ...(2)
I = I, X (toN/T) ””
...@(3) and Nasi, the equations (2) and (3) are replaced by the equation (1)
), P = E X IB X (to
N/T) @...(4).
ここで、平均値Ｉ ＡＷＥは、 ＩＡｖｚ ＝ ２ Ｘ Ｃｖ／Ｔ／π）×工。Here, the average value IAWE is IAvz = 2 x Cv/T/π) x engineering.
×（ｔＯＮ／Ｔ） Φ番・（５）となシ、
■８×（ｔｏＮ／Ｔ）＝πＸ工Ａｙ８／２ｖ／Ｔ ・
・（６）となるので、第（６）式を第（４）式に代入す
ると、Ｐ＝（π／２Ｊ丁） Ｘ Ｉ、、、 ＸＥ＝ １
．１１ Ｘ ＩＡｖＩｃＸＥ
となる。すなわち、電圧発生源１の電圧Ｅを一定とすれ
ば、ヒータ２の消費電力Ｐは電流検出器１１の検出値（
平均値工Ａ□）に比例する。× (tON/T) Φ No. (5) Tonashi, ■8 × (toN/T) = πX Engineering Ay8/2v/T ・
・Since (6) is obtained, substituting the equation (6) into the equation (4), P=(π/2J-cho) X I,,, XE= 1
．． 11 X IAvIcXE. That is, if the voltage E of the voltage source 1 is constant, the power consumption P of the heater 2 is the detected value of the current detector 11 (
It is proportional to the average value A□).
したがって、電流検出器１１．設定ボリューム６の出力
信号を比較器ｌで比較し、ＧＰＧ８でサイリスタ３を制
御することにより、ヒータ２の定電力制御が行なえる。Therefore, the current detector 11. By comparing the output signal of the setting volume 6 with the comparator 1 and controlling the thyristor 3 with the GPG 8, constant power control of the heater 2 can be performed.
なお、単相の場合で説明したが、三相電源であってもよ
く、上記実施例と同様な効果を奏する。Although the explanation has been made in the case of a single-phase power supply, a three-phase power supply may also be used, and the same effects as in the above embodiments can be obtained.
以上のように、この発明によれば、電流検出器で交流電
源の交流電流値を直流電流値に変換した平均値で交流電
源を制御する構成としたので、負荷変動に対して補正で
きるという効果がある。As described above, according to the present invention, since the AC power supply is controlled by the average value obtained by converting the AC current value of the AC power supply into a DC current value using the current detector, the effect is that it can compensate for load fluctuations. There is.
第１図はこの発明の一実施例による交流電源の定電力制
御方式を示す回路図、第２図は従来の交流電源の定電力
制御方式を示す回路図、第３図（ａ）は電圧発生源の出
力電圧を示す波形図、第３図（ｂ）はヒータへの印加電
圧を示す波形図である。
図において、１は電圧発生源、２はヒータ、３はサイリ
スタ、４は電圧検出器、５は掛算器、６は設定ボリュー
ム、７は比較器、８はゲートパルス発生器、１１は電流
検出器、１１Ａは変流器、１１Ｂはダイオード、１１Ｃ
は抵抗器を示す。
なお、図中、同一符号は同一、または相当部分を示す。Figure 1 is a circuit diagram showing a constant power control method for an AC power supply according to an embodiment of the present invention, Figure 2 is a circuit diagram showing a conventional constant power control method for an AC power supply, and Figure 3 (a) is a voltage generation circuit diagram. FIG. 3(b) is a waveform diagram showing the voltage applied to the heater. In the figure, 1 is a voltage source, 2 is a heater, 3 is a thyristor, 4 is a voltage detector, 5 is a multiplier, 6 is a setting volume, 7 is a comparator, 8 is a gate pulse generator, 11 is a current detector , 11A is a current transformer, 11B is a diode, 11C
indicates a resistor. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
ら定電力を発生させる交流電源の定電力制御方式におい
て、電流検出器で前記交流電源の交流電流値を直流電流
値に変換した平均値で前記交流電源を制御することを特
徴とする交流電源の定電力制御方式。In a constant power control method for an AC power source that generates constant power from the load by intermittently controlling energization from the AC power source to the heater, the average value obtained by converting the AC current value of the AC power source into a DC current value using a current detector. A constant power control method for an AC power source, characterized in that the AC power source is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11004587A JPS63273921A (en) | 1987-05-06 | 1987-05-06 | Constant power control system for ac power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11004587A JPS63273921A (en) | 1987-05-06 | 1987-05-06 | Constant power control system for ac power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63273921A true JPS63273921A (en) | 1988-11-11 |
Family
ID=14525712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11004587A Pending JPS63273921A (en) | 1987-05-06 | 1987-05-06 | Constant power control system for ac power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63273921A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012058951A (en) * | 2010-02-06 | 2012-03-22 | Chin-Yi Lin | Electricity conditioning device, and power supply control system and method therefor |
| CN107997601A (en) * | 2016-10-31 | 2018-05-08 | 芜湖美的厨卫电器制造有限公司 | Instant heating type heating unit and its control method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6010316B2 (en) * | 1978-10-03 | 1985-03-16 | 岩崎通信機株式会社 | duplication machine |
-
1987
- 1987-05-06 JP JP11004587A patent/JPS63273921A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6010316B2 (en) * | 1978-10-03 | 1985-03-16 | 岩崎通信機株式会社 | duplication machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012058951A (en) * | 2010-02-06 | 2012-03-22 | Chin-Yi Lin | Electricity conditioning device, and power supply control system and method therefor |
| CN107997601A (en) * | 2016-10-31 | 2018-05-08 | 芜湖美的厨卫电器制造有限公司 | Instant heating type heating unit and its control method |
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