JP2906580B2 - Power up method - Google Patents
Power up methodInfo
- Publication number
- JP2906580B2 JP2906580B2 JP12856090A JP12856090A JP2906580B2 JP 2906580 B2 JP2906580 B2 JP 2906580B2 JP 12856090 A JP12856090 A JP 12856090A JP 12856090 A JP12856090 A JP 12856090A JP 2906580 B2 JP2906580 B2 JP 2906580B2
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- voltage
- instantaneous value
- thyristor
- supply 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 - Fee Related
Links
Landscapes
- Rectifiers (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はモータのインバータ制御における直流電源の
電源立ち上げ方式に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method of starting a DC power supply in inverter control of a motor.
ダイオードサイリスタ混合ブリッジによる整流回路と
交流電源のリップルを平滑化するコンデンサよりなる直
流電源において、電源投入時に平滑化コンデンサへの充
電電流を制御する場合、従来は交流電源入力の周期を測
定し、位相を推定することによりサイリスタの点孤タイ
ミングをとっている。In a DC power supply consisting of a rectifier circuit with a diode thyristor mixed bridge and a capacitor that smoothes the ripple of the AC power supply, when controlling the charging current to the smoothing capacitor at power-on, conventionally, the cycle of the AC power supply input is measured and the phase is measured. The thyristor is fired by estimating the ignition timing.
第６図は混合ブリッジによる直流電源の一般的な回路
構成である。FIG. 6 shows a general circuit configuration of a DC power supply using a mixed bridge.
交流電源５よりの入力のＲ相の電圧をサイリスタ点孤
制御装置４において、Ｎ相を基準にしてコンパレータに
よりOVかそうでないかの比較を行い、Ｒ−Ｎ≠OVとなり
始める点をＲ−ON、Ｒ−Ｎ≠OVからＲ−Ｎ＝OVとなる点
をＲ−OFFとすると、Ｒ−ONから次のＲ−ONまでの時間
を測って電源周期Ｔとする。電源周期は不安定である場
合があるので、複数回測って平均化する。Ｒ−OFFとな
る点はＲ−ONより120°遅れた点であるので2/3Tを計算
する。In the thyristor ignition control device 4, the voltage of the R phase input from the AC power supply 5 is compared with OV or not by a comparator with reference to the N phase, and the point at which RN ≠ OV starts is R-ON. , RN ≠ OV, the point at which RN = OV is defined as R-OFF, the time from R-ON to the next R-ON is measured and defined as the power supply cycle T. Since the power supply cycle may be unstable, it is measured several times and averaged. Since the point that becomes R-OFF is a point that is delayed by 120 ° from R-ON, 2 / 3T is calculated.
2/3T−Δｔ・ｍ（ｍ＝0.1,2…Ｎ）となる点でＲ相の
サイリスタを点孤すると、その時のＲ相の瞬時電圧がＰ
−Ｎ間に充電される（第７図）。When the R-phase thyristor is turned on at the point where 2 / 3T-Δt · m (m = 0.1,2... N), the instantaneous voltage of the R-phase at that time becomes P
It is charged between −N (FIG. 7).
Ｒ相のピーク電圧をRPeakとすると充電電圧は で表される。If the peak voltage of the R phase is R Peak , the charging voltage is It is represented by
充電電流を押さえるため充電電圧はあまり大きくできな
い。仮に充電電圧を10V以下に押さえようと思うと、 電源周波数50Hzとすると、 となりサイリスタ点孤のタイミングを115μsec単位でず
らしていくことによりＰ−Ｎ間をRpeakまで充電する。
充電完了までかかる時間は であるので、40×20msec＝800msecである。The charging voltage cannot be too high to suppress the charging current. If you try to keep the charging voltage below 10V, If the power frequency is 50Hz, By shifting the timing of the thyristor ignition in units of 115 μsec, PN is charged to R peak .
How long does it take to complete charging Therefore, 40 × 20 msec = 800 msec.
また、電源周期は不安定である場合があるので、電源
立ち上げ中も周期の測定を行い、周期が変わった場合は
サイリスタ点孤のタイミングに補正を加える必要があ
る。In addition, since the power supply cycle may be unstable, it is necessary to measure the cycle even during power-on, and to correct the thyristor ignition timing when the cycle changes.
従来技術によると、サイリスタ点孤のタイミングは電
源周期によるので周期測定の手段、Ｒ−ONの点を検出す
る手段、Ｒ−OFFの点を推定する手段等が必要となり、
回路構成が複雑となる。According to the prior art, the timing of the thyristor ignition depends on the power supply cycle, so that means for period measurement, means for detecting the R-ON point, means for estimating the R-OFF point, and the like are required.
The circuit configuration becomes complicated.
また電源周期が不安定である場合があるので補正の必
要がある。電源電圧は正弦波状に変化するので周期一定
で充電した場合、充電量は徐々に減っていき、後半間延
びした形になる。Further, since the power supply cycle may be unstable, correction is necessary. Since the power supply voltage changes in a sinusoidal manner, when the battery is charged at a constant cycle, the charged amount gradually decreases and extends in the latter half.
したがって、本発明は電源周期が不安定である場合
も、簡単な回路構成で電源立ち上げができる方式を提供
することを目的とする。Accordingly, it is an object of the present invention to provide a system capable of starting up a power supply with a simple circuit configuration even when the power supply cycle is unstable.
上記課題を解決するため、本発明はＲ相の瞬時電圧
と、Ｐ相の電圧を検出し、Ｒ相電圧がＰ相電圧より所定
電圧値高く、Ｒ相電圧瞬時値が減少傾向にあるときのみ
サイリスタを点孤することにより電源立ち上げを行うも
のである。In order to solve the above problems, the present invention detects the instantaneous voltage of the R phase and the voltage of the P phase, and only when the R phase voltage is higher than the P phase voltage by a predetermined voltage value and the instantaneous value of the R phase voltage is decreasing. The power is turned on by turning on the thyristor.
上記の検出と判断処理は、市販のA/Dコンバータ内蔵
マイコンにより行われる。したがって本案は安価で部品
点数が少なく、簡単なシーケンスで実現できる。The above detection and judgment processing is performed by a microcomputer with a commercially available A / D converter. Therefore, the present invention is inexpensive, has a small number of parts, and can be realized by a simple sequence.
第１図に実施例のアルゴリズムを示す。 FIG. 1 shows the algorithm of the embodiment.
Ｒ相瞬時電圧が減少しており、かつＲ相瞬時電圧が直
流電圧よりΔＶ〔Ｖ〕だけ高いとき、Ｒ相サイリスタを
ONする。When the R-phase instantaneous voltage is decreasing and the R-phase instantaneous voltage is higher than the DC voltage by ΔV [V], the R-phase thyristor is turned off.
Turn ON.
直流電圧がΔＶ〔Ｖ〕になるまで平滑化コンデンサは
充電されるΔＶ〔Ｖ〕は充電電流がダイオードサイリス
タ混合ブリッジの耐量を越えないように選ぶ。Ｒ相瞬時
電圧が0VになったらＲ相をOFFする。The smoothing capacitor is charged until the DC voltage reaches ΔV [V]. The ΔV [V] is selected so that the charging current does not exceed the withstand capability of the diode thyristor mixing bridge. When the R-phase instantaneous voltage becomes 0 V, the R-phase is turned off.
以上のことをくり返して、充電完了したらＲ、Ｓ、Ｔ
相のサイリスタをONして電源立ち上げを終了する。By repeating the above, when charging is completed, R, S, T
Turn on the thyristor of the phase and finish power-on.
第２図は電源立ち上げのタイミングを示す図である。 FIG. 2 is a diagram showing a power-on timing.
ここにおいて、Ｒ相瞬時電圧と直流電圧を比較した
が、直流電圧の替わりに前回Ｒ相サイリスタをONしたと
きのＲ相瞬時電圧を使っても同様の処理が可能で、検出
点でＲ相瞬時電圧１点にすることができるという利点が
ある。Here, the R-phase instantaneous voltage and the DC voltage were compared, but the same processing can be performed by using the R-phase instantaneous voltage when the R-phase thyristor was previously turned on instead of the DC voltage. There is an advantage that the voltage can be reduced to one point.
また、３相入力の場合にはＲ相瞬時電圧減少中という
条件の替わりに、Ｒ相に対して120°位相の遅れたＳ相
（あるいはＴ相）の瞬時電圧を検出し、Ｓ相（あるいは
Ｔ相）瞬時電圧≠0Vのとき、かつＲ相瞬時電圧が直流電
圧よりΔＶ〔Ｖ〕だけ高いときＲ相サイリスタをONす
る。In the case of three-phase input, instead of the condition that the R-phase instantaneous voltage is decreasing, the instantaneous voltage of the S-phase (or T-phase) delayed by 120 ° from the R-phase is detected, and the S-phase (or (T-phase) When the instantaneous voltage ≠ 0V and when the R-phase instantaneous voltage is higher than the DC voltage by ΔV [V], the R-phase thyristor is turned on.
このときの動作説明図を第３図に示す。 FIG. 3 shows an explanatory diagram of the operation at this time.
また、第４図に単相入力の場合の実施例、第５図にそ
の動作説明図を示す。FIG. 4 shows an embodiment in the case of single-phase input, and FIG. 5 shows an operation explanatory diagram thereof.
以上述べたように、本発明によれば、電源周期が不安
定である場合も、簡単な回路構成で電源立ち上げができ
る。As described above, according to the present invention, even when the power cycle is unstable, the power can be turned on with a simple circuit configuration.
第１図は本発明の実施例、第２図、第３図は本発明の動
作説明図、第４図は本発明の他の実施例、第５図は本発
明の他の実施例の動作説明図、第６図は従来例、第７図
は従来例の動作説明図である。1 is an embodiment of the present invention, FIGS. 2 and 3 are diagrams for explaining the operation of the present invention, FIG. 4 is another embodiment of the present invention, and FIG. 5 is an operation of another embodiment of the present invention. FIG. 6 is an operation explanatory diagram of the conventional example, and FIG. 7 is an operation explanatory diagram of the conventional example.
Claims (3)
タ混合ブリッジによる整流回路により整流し、前記交流
電源のリップルを平滑化するコンデンサに電荷を充電す
る直流電源の電源立ち上げ方法において、 電源投入時に前記直流電源の負側を基準としてこの基準
より見た前記交流電源の瞬時値を検出し、 前記基準より見た前記直流電源の正側の電圧を検出し、 前記検出した交流電源電圧瞬時値と直流電源電圧を比較
し、 前記交流電源電圧瞬時値が前記直流電源電圧より、ある
電圧値相当分高く、かつ前記交流電源電圧瞬時値が減少
傾向にあるときに前記整流回路のサイリスタを点孤する
ことを特徴とする電源立ち上げ方法。1. A method for starting up a DC power supply, wherein an AC power supply is input, rectified by a rectifier circuit using a diode thyristor mixing bridge, and charges a capacitor for smoothing a ripple of the AC power supply. Detecting the instantaneous value of the AC power supply as viewed from the reference with reference to the negative side of the DC power supply, detecting the positive voltage of the DC power supply as viewed from the reference, and detecting the detected AC power supply voltage instantaneous value and DC. Comparing the power supply voltage, and turning on the thyristor of the rectifier circuit when the AC power supply voltage instantaneous value is higher than the DC power supply voltage by a certain voltage value and the AC power supply voltage instantaneous value tends to decrease. A power supply startup method characterized by the following.
タ混合ブリッジによる整流回路により整流し、前記交流
電源のリップルを平滑化するコンデンサに電荷を充電す
る直流電源の電源立ち上げ方法において、 電源投入時に前記直流電源の負側を基準としてこの基準
より見た前記交流電源の瞬時値を検出し、 前記サイリスタを前記交流電源周期の１周期前に点孤し
たときの交流電源電圧瞬時値を記憶し、 前記検出した交流電源電圧瞬時値と前記記憶値に比較
し、 前記交流電源電圧瞬時値が前記記憶値より、ある電圧値
相当分高く、かつ前記交流電源電圧瞬時値が減少傾向に
あるときに前記整流回路のサイリスタを点孤することを
特徴とする電源立ち上げ方法。2. A method for starting up a DC power supply, wherein an AC power supply is input, rectified by a rectifier circuit using a diode thyristor mixing bridge, and charges a capacitor for smoothing a ripple of the AC power supply. Detecting the instantaneous value of the AC power supply as viewed from the reference with respect to the negative side of the DC power supply, storing the AC power supply voltage instantaneous value when the thyristor is turned on one cycle before the AC power supply cycle, Compared with the detected AC power supply voltage instantaneous value and the stored value, the rectification is performed when the AC power supply voltage instantaneous value is higher than the stored value by a certain voltage value and the AC power supply voltage instantaneous value is decreasing. A method for starting up a power supply, characterized in that a thyristor of a circuit is turned on.
タ混合ブリッジによる整流回路により整流し、前記交流
電源のリップルを平滑化するコンデンサに電荷を充電す
る直流電源の電源立ち上げ方法において、 電源投入時に前記直流電源の負側を基準としてこの基準
より見た前記交流電源の瞬時時値を検出し、 前記基準より見た前記直流電源の正側の電圧を検出し、 前記検出した交流電源電圧瞬時値と直流電源電圧を比較
し、 前記交流電源電圧瞬時値が前記直流電源電圧より、ある
電圧値相当分高く、サイリスタ点孤をする相対して120
°位相の遅れた相の交流電源電圧瞬時値≠0Vのときに前
記整流回路のサイリスタを点孤することを特徴とする電
源立ち上げ方法。3. A method for starting up a DC power supply, wherein an AC power supply is input, rectified by a rectifier circuit using a diode thyristor mixing bridge, and charges a capacitor for smoothing a ripple of the AC power supply. Detecting the instantaneous value of the AC power supply as viewed from this reference with reference to the negative side of the DC power supply, detecting the positive voltage of the DC power supply as viewed from the reference, and detecting the detected AC power supply voltage instantaneous value and The DC power supply voltage is compared, and the instantaneous value of the AC power supply voltage is higher than the DC power supply voltage by a certain voltage value, and the thyristor is turned on.
The method for starting up the power supply, characterized in that the thyristor of the rectifier circuit is turned on when the instantaneous value of the AC power supply voltage of the delayed phase is 0 V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12856090A JP2906580B2 (en) | 1990-05-17 | 1990-05-17 | Power up method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12856090A JP2906580B2 (en) | 1990-05-17 | 1990-05-17 | Power up method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0426372A JPH0426372A (en) | 1992-01-29 |
| JP2906580B2 true JP2906580B2 (en) | 1999-06-21 |
Family
ID=14987784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12856090A Expired - Fee Related JP2906580B2 (en) | 1990-05-17 | 1990-05-17 | Power up method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2906580B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4337032B2 (en) * | 2003-07-30 | 2009-09-30 | 株式会社安川電機 | Capacitor charge control method for thyristor converter device |
| JP4561215B2 (en) * | 2004-07-22 | 2010-10-13 | 株式会社安川電機 | Thyristor converter device |
| JP2007202305A (en) * | 2006-01-26 | 2007-08-09 | Mitsumi Electric Co Ltd | Power supply |
| US20120229100A1 (en) * | 2011-03-11 | 2012-09-13 | Renault S.A. S. | Optimized software-driven soft-start algorithm |
| JP6994686B2 (en) * | 2018-08-10 | 2022-01-14 | パナソニックＩｐマネジメント株式会社 | Power converter |
-
1990
- 1990-05-17 JP JP12856090A patent/JP2906580B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0426372A (en) | 1992-01-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |