JP3416972B2 - Ozone generation amount control device - Google Patents
Ozone generation amount control deviceInfo
- Publication number
- JP3416972B2 JP3416972B2 JP01210593A JP1210593A JP3416972B2 JP 3416972 B2 JP3416972 B2 JP 3416972B2 JP 01210593 A JP01210593 A JP 01210593A JP 1210593 A JP1210593 A JP 1210593A JP 3416972 B2 JP3416972 B2 JP 3416972B2
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- voltage
- generation amount
- transformer
- voltage waveform
- 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 - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/10—Preparation of ozone
- C01B13/11—Preparation of ozone by electric discharge
- C01B13/115—Preparation of ozone by electric discharge characterised by the electrical circuits producing the electrical discharge
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、オゾン発生量制御装置
に係り、特にオゾン発生装置の電源部において、オゾン
発生量を周波数で制御する時の電源の波形に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ozone generation amount control device, and more particularly to a waveform of a power supply for controlling the ozone generation amount by frequency in a power supply section of the ozone generation device.
【０００２】[0002]
【従来の技術】一般に無声放電でオゾンを発生させる装
置は、図３に示すように交流電源１の電圧を昇圧変圧器
２により高圧に昇圧し、放電管３に印加するように構成
されている。2. Description of the Related Art Generally, a device for generating ozone by silent discharge is constructed so that the voltage of an AC power supply 1 is boosted to a high voltage by a boosting transformer 2 and applied to a discharge tube 3 as shown in FIG. .
【０００３】このようなオゾン発生装置において、オゾ
ン発生量の制御は次の２通りの方法で行われていた。In such an ozone generator, the amount of ozone generated is controlled by the following two methods.
【０００４】（１）電源周波数を一定にし、電源電圧を
変化させる事により制御する。(1) Control is performed by keeping the power supply frequency constant and changing the power supply voltage.
【０００５】（２）電源にインバータを用い、電圧を一
定にし変圧器で昇圧した電圧を放電管に印加しインバー
タの周波数を可変してオゾンの発生量を制御する。(2) An inverter is used as a power source, a voltage is made constant and a voltage boosted by a transformer is applied to a discharge tube to change the frequency of the inverter to control the amount of ozone generated.
【０００６】この様に無声放電でオゾンを発生させよう
とした場合、発生量は、電圧で制御するか周波数で制御
するかの２通りであった。As described above, when the ozone is to be generated by the silent discharge, the amount of generation is two kinds, that is, the voltage control or the frequency control.
【０００７】[0007]
【発明が解決しようとする課題】前記（２）項で述べた
ように、オゾン発生量を周波数で制御した場合、問題と
なるのは昇圧変圧器２の設計である。As described in the above item (2), when the ozone generation amount is controlled by the frequency, the problem is the design of the step-up transformer 2.
【０００８】変圧器の設計からみると、周波数を可変す
る（約５００ＨZ〜２０００ＨZ）ことは、電圧波形の積
分値（磁束）が図４に示すように大きく変化してしま
う。すなわち周波数５００ＨZ（図４ａ）に比べ周波数
２０００ＨZ（図４ｃ）のときは、電圧波形の積分値が
１／４になる。これは昇圧変圧器２の主磁束も１／４に
なるということであり、該変圧器の設計が非常に困難と
なる（変圧器の設計の際磁束を一定にして設計するた
め）。このように電圧波形の積分値（磁束）が変化する
と変圧器の損失も大きくなる。[0008] Viewed from a transformer design, to vary the frequency (approximately 500H Z ~2000H Z) means that the integral value of the voltage waveform (flux) greatly changes as shown in FIG. That when the frequency 2000H Z (Fig. 4c) compared to the frequency 500H Z (FIG. 4a), the integral value of the voltage waveform becomes 1/4. This means that the main magnetic flux of the step-up transformer 2 is also 1/4, which makes it extremely difficult to design the transformer (because the magnetic flux is designed to be constant when designing the transformer). When the integrated value (magnetic flux) of the voltage waveform changes in this way, the loss of the transformer also increases.
【０００９】また前記（１）項の方法に比べ（２）項の
方法は周波数でオゾン発生量を制御する為オゾン発生量
が少ない量から制御できる。すなわち、（１）項の方法
のように電圧でオゾン発生量を制御すると、オゾン発生
電圧の初期値から３０％程度のオゾンが発生してしま
う。Further, compared to the method (1), the method (2) controls the ozone generation amount by frequency, so that the ozone generation amount can be controlled from a small amount. That is, when the ozone generation amount is controlled by the voltage as in the method of the item (1), about 30% of ozone is generated from the initial value of the ozone generation voltage.
【００１０】本発明は上記の点に鑑みてなされたもので
その目的は、周波数を変化させても変圧器の磁束を一定
にすることができ、これによって変圧器の設計を容易な
らしめ、且つ損失を低減させたオゾン発生量制御装置を
提供することにある。The present invention has been made in view of the above points, and an object thereof is to make the magnetic flux of a transformer constant even if the frequency is changed, thereby facilitating the design of the transformer, and An object of the present invention is to provide an ozone generation amount control device with reduced loss.
【００１１】[0011]
【課題を解決するための手段】本発明は、（１）交流電
源の電圧を変圧器により昇圧し放電管に印加してオゾン
を発生させる装置の、電源周波数を制御してオゾン発生
量を制御するオゾン発生量制御装置において、前記交流
電源と変圧器の間に、所定の周波数可変範囲を有し、該
周波数可変範囲の最大周波数の電圧波形に合わせて、各
周波数で１周期中に電圧が零となる区間を設けることに
よって、各周波数における１周期中の電圧波形の電圧面
積が前記最大周波数の電圧波形の電圧面積と同一となる
ように作成した電圧指令信号と、前記周波数可変範囲の
最大周波数の正数倍の周波数のキャリア信号とを比較し
て得られたゲート信号によって制御されるインバータを
設けたことを特徴とし、（２）前記電圧指令信号は、前
記周波数可変範囲内で一定周波数毎の段階的電圧波形デ
ータとしてメモリに格納され、前記ゲート信号は、前記
メモリから読み出した電圧波形データと前記キャリア信
号とを比較して得られることを特徴としている。According to the present invention, (1) the power generation frequency of an apparatus for generating ozone by applying voltage to a discharge tube by boosting the voltage of an AC power supply by a transformer is controlled to control the ozone generation amount. In the ozone generation amount control device, which has a predetermined frequency variable range between the AC power supply and the transformer ,
Each is adjusted according to the voltage waveform of the maximum frequency in the frequency variable range.
To provide a section where the voltage is zero during one cycle of frequency
Therefore, the voltage plane of the voltage waveform during one cycle at each frequency
The product is the same as the voltage area of the voltage waveform of the maximum frequency
Of the voltage command signal created in
Compare with a carrier signal with a frequency that is a positive multiple of the maximum frequency.
An inverter controlled by the gate signal obtained as described above is provided, and (2) the voltage command signal is
Stepwise voltage waveform data for each constant frequency within the variable frequency range
Is stored in the memory as a data, and the gate signal is
The voltage waveform data read from the memory and the carrier signal
It is characterized by being obtained by comparing with the issue .
【００１２】[0012]
【作用】各周波数における１周期中の電圧波形の電圧面
積が前記最大周波数の電圧波形の電圧面積と同一となる
ので、電源周波数を変化させても変圧器に供給される電
圧波形の積分値は変わらず一定となる。このため変圧器
の磁束は周波数変化に対して一定となり、変圧器の設計
がし易くなるとともに、変圧器の損失が減少する。また
周波数制御によるオゾン発生量制御であるため細かな制
御が行われる。[Operation] Voltage plane of voltage waveform in one cycle at each frequency
The product is the same as the voltage area of the voltage waveform of the maximum frequency
Therefore, even if the power supply frequency is changed, the integrated value of the voltage waveform supplied to the transformer remains constant. Therefore, the magnetic flux of the transformer becomes constant with respect to the frequency change, which facilitates the design of the transformer and reduces the loss of the transformer. Further, since the ozone generation amount control is performed by frequency control, fine control is performed.
【００１３】[0013]
【実施例】以下、図面を参照しながら本発明の一実施例
を説明する。本発明では図１のように、ＰＷＭインバー
タ４によって電源周波数を変化させるものであるが、電
圧波形の作成を次のようにして行う。すなわち図２に示
すように、（ｃ）の最大周波数２０００ＨZの電圧波形
に合わせて各周波数（５００ＨZ、や１０００ＨZ）で１
周期中に電圧が零となる区間を設けるようにＰＷＭイン
バータ４の電圧指令を作る。図２において各周波数の電
圧波形の面積Ｓａ，Ｓｂ，Ｓｃは等しくなる。この様な
方法を用いる事により、周波数を可変した場合において
も電圧の積分値を一定とする事が出来る為、変圧器の磁
束が一定となり、設計が容易に出来、変圧器損失を少な
くする事が出来る。又、この様な電圧波形にした場合で
も、オゾン発生量に変化はなく十分に周波数に対し制御
が行える。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the present invention, the power supply frequency is changed by the PWM inverter 4 as shown in FIG. 1, but the voltage waveform is created as follows. That is, as shown in FIG. 2, 1 at the maximum frequency 2000H Z of the voltage waveform in accordance with the frequency of (c) (500H Z, and 1000H Z)
The voltage command of the PWM inverter 4 is made so that a section where the voltage becomes zero is provided in the cycle. In FIG. 2, the areas Sa, Sb, Sc of the voltage waveform of each frequency are equal. By using such a method, the integrated value of the voltage can be made constant even when the frequency is changed, so the magnetic flux of the transformer becomes constant, design can be facilitated, and transformer loss can be reduced. Can be done. Even when such a voltage waveform is used, the ozone generation amount does not change, and the frequency can be controlled sufficiently.
【００１４】次に図１の装置により図２の５００ＨZ〜
２０００ＨZまで周波数を可変できるようにした具体例
を述べる。まず電圧波形は、最大周波数の２０００ＨZ
時の形になる為、ＰＷＭキャリア周波数は、その１０倍
の２０ＫＨＺは必要となるので、高周波のＩＧＢＴを用
いる。[0014] Next 500H Z ~ in Figure 2 by the apparatus of FIG. 1
Describe the specific example to be able to vary the frequency to 2000H Z. First voltage waveform, the maximum frequency 2000H Z
Since the PWM carrier frequency needs to be 20KHZ, which is ten times that of the time carrier, a high frequency IGBT is used.
【００１５】電圧の指令値は５００ＨZ〜２０００ＨZま
で１６段階で１００ＨZづつ波形データをＲＯＭに焼き
つけておく。このＲＯＭから任意周波数波形をデジタル
で取り出し、これをＤ／Ａ変換し、２０ＫＨＺのキャリ
ア周波数信号と比較し、ＩＧＢＴのゲート信号とする。
したがって、ＲＯＭに憶えこませるデータを増やせば、
更に細かく周波数制御が出来、オゾン発生量も細かく制
御出来る。The command value of the voltage is kept baking the 100H Z increments waveform data in the ROM in 16 steps up to 500H Z ~2000H Z. An arbitrary frequency waveform is digitally extracted from this ROM, D / A converted, and compared with a carrier frequency signal of 20 KHZ to obtain an IGBT gate signal.
Therefore, if you increase the data that can be stored in ROM,
The frequency can be controlled more finely, and the amount of ozone generated can also be finely controlled.
【００１６】[0016]
【発明の効果】以上のように本発明によれば、所定の周
波数可変範囲を有し、該周波数可変範囲の最大周波数の
電圧波形に合わせて、各周波数で１周期中に電圧が零と
なる区間を設けることによって、各周波数における１周
期中の電圧波形の電圧面積が前記最大周波数の電圧波形
の電圧面積と同一となるように作成した電圧指令信号
と、前記周波数可変範囲の最大周波数の正数倍の周波数
のキャリア信号とを比較して得られたゲート信号によっ
て制御されるインバータを設けたので、周波数が変化す
る状態においてもオゾン発生装置の昇圧変圧器の磁束を
一定にすることができ、これによって変圧器の設計がし
易くなり、損失を少なくする事ができる。As described above, according to the present invention, a predetermined circumference
It has a variable wave number range and has a maximum frequency of the variable frequency range.
According to the voltage waveform, the voltage is zero during one cycle at each frequency.
By providing the section
The voltage area of the voltage waveform during the period is the voltage waveform of the maximum frequency
Voltage command signal created to be the same as the voltage area of
And a frequency that is a positive multiple of the maximum frequency of the frequency variable range
The gate signal obtained by comparing the carrier signal of
Since a controlled inverter is provided, the magnetic flux of the step-up transformer of the ozone generator can be kept constant even when the frequency changes, which makes it easier to design the transformer and reduce loss. You can
【００１７】また電圧波形の面積は、周波数が最も高い
ところで決定される為、変圧器の小型化が可能となる。Since the area of the voltage waveform is determined at the highest frequency, the transformer can be downsized.
【図１】本発明の一実施例を示す構成図。FIG. 1 is a configuration diagram showing an embodiment of the present invention.
【図２】本発明の装置により作成される電圧を示す電圧
波形図。FIG. 2 is a voltage waveform diagram showing a voltage generated by the device of the present invention.
【図３】一般的なオゾン発生装置の一例を示す構成図。FIG. 3 is a configuration diagram showing an example of a general ozone generator.
【図４】従来の装置により、周波数変化時に電圧の積分
値が変化するようすを表す電圧波形図。FIG. 4 is a voltage waveform diagram showing how the integrated value of the voltage changes when the frequency changes with the conventional device.
２…昇圧変圧器 ３…放電器 ４…ＰＷＭインバータ 2 ... Step-up transformer 3 ... Discharger 4 ... PWM inverter
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) C01B 13/11 H01T 15/00 H01T 23/00 H02P 7/42 - 7/98 ─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. 7 , DB name) C01B 13/11 H01T 15/00 H01T 23/00 H02P 7/42-7/98
Claims (2)
電管に印加してオゾンを発生させる装置の、電源周波数
を制御してオゾン発生量を制御するオゾン発生量制御装
置において、 前記交流電源と変圧器の間に、所定の周波数可変範囲を有し、該周波数可変範囲の最大
周波数の電圧波形に合わせて、各周波数で１周期中に電
圧が零となる区間を設けることによって、各周波数にお
ける１周期中の電圧波形の電圧面積が前記最大周波数の
電圧波形の電圧面積と同一となるように作成した電圧指
令信号と、前記周波数可変範囲の最大周波数の正数倍の
周波数のキャリア信号とを比較して得られたゲート信号
によって制御されるインバータ を設けたことを特徴とす
るオゾン発生量制御装置。1. An ozone generation amount control device for controlling a power supply frequency to control an ozone generation amount in a device for generating ozone by applying a voltage of an AC power supply by a transformer to a discharge tube to generate ozone. Has a predetermined frequency variable range between the transformer and the transformer , and the maximum of the frequency variable range
According to the voltage waveform of the frequency, the power is supplied during one cycle at each frequency.
By providing a section where the pressure is zero, each frequency is
The voltage area of the voltage waveform during one cycle of
A voltage finger created to have the same voltage area as the voltage waveform.
Command signal and a positive multiple of the maximum frequency of the frequency variable range.
Gate signal obtained by comparing with carrier signal of frequency
An ozone generation amount control device comprising an inverter controlled by .
囲内で一定周波数毎の段階的電圧波形データとしてメモ
リに格納され、 前記ゲート信号は、前記メモリから読み出した電圧波形
データと前記キャリア信号とを比較して得られる ことを
特徴とする請求項１に記載のオゾン発生量制御装置。2. The voltage command signal includes the frequency variable range.
Memo as stepwise voltage waveform data for each constant frequency
Stored in memory and the gate signal is a voltage waveform read from the memory.
The ozone generation amount control device according to claim 1, which is obtained by comparing data with the carrier signal .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01210593A JP3416972B2 (en) | 1993-01-28 | 1993-01-28 | Ozone generation amount control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01210593A JP3416972B2 (en) | 1993-01-28 | 1993-01-28 | Ozone generation amount control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06219709A JPH06219709A (en) | 1994-08-09 |
| JP3416972B2 true JP3416972B2 (en) | 2003-06-16 |
Family
ID=11796293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01210593A Expired - Fee Related JP3416972B2 (en) | 1993-01-28 | 1993-01-28 | Ozone generation amount control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3416972B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130247295A1 (en) * | 2005-11-29 | 2013-09-26 | Creaholic S.A. | Washing device |
-
1993
- 1993-01-28 JP JP01210593A patent/JP3416972B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130247295A1 (en) * | 2005-11-29 | 2013-09-26 | Creaholic S.A. | Washing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06219709A (en) | 1994-08-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |