JP2894651B2 - Control device for AC / DC converter - Google Patents
Control device for AC / DC converterInfo
- Publication number
- JP2894651B2 JP2894651B2 JP3194670A JP19467091A JP2894651B2 JP 2894651 B2 JP2894651 B2 JP 2894651B2 JP 3194670 A JP3194670 A JP 3194670A JP 19467091 A JP19467091 A JP 19467091A JP 2894651 B2 JP2894651 B2 JP 2894651B2
- Authority
- JP
- Japan
- Prior art keywords
- phase
- bpp
- circuit
- control device
- converter
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Landscapes
- Power Conversion In General (AREA)
- Inverter Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Direct Current Feeding And Distribution (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、直流送電設備或いは周
波数変換設備等の直流連系設備に使用される交直変換器
の制御装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for an AC / DC converter used for DC interconnection equipment such as DC power transmission equipment or frequency conversion equipment.
【０００２】[0002]
【従来の技術】図３は直流送電設備或いは周波数変換設
備等の直流連系設備に使用される交直変換器の一方を示
したものである。図３において、１は直流リアクトル、
２Ｕ，２Ｖ，２Ｗ，２Ｘ，２Ｙ，２Ｚはサイリスタバル
ブ、３は変換器用変圧器である。制御装置５Ａ，５Ｂで
は位相制御回路６Ａ，６Ｂにより、サイリスタバルブの
点弧タイミングを決定し、パルス発生装置４（以下、Ｐ
Ｇと記す）に送られ、各サイリスタバルブに８Ｈ，８Ｌ
の信号線を通して点弧指令（以下ゲ―トパルスと記す）
が与えられる。ここでは制御装置５はＡ系、Ｂ系の２重
系となっており片系（例えば５Ａ）に異常が生じても、
異常系を切離し健全系（例えば５Ｂ）にて、直流連系設
備としては、正常に運転可能なように構成されている。
尚、ＰＧ４は、Ａ系の制御装置５Ａ及びＢ系の制御装置
５Ｂの位相制御信号（ＰＨＳ信号）の内どちらか一方を
選択する機能を有している。2. Description of the Related Art FIG. 3 shows one of AC / DC converters used for DC interconnection equipment such as DC power transmission equipment or frequency conversion equipment. In FIG. 3, 1 is a DC reactor,
2U, 2V, 2W, 2X, 2Y, 2Z are thyristor valves, and 3 is a transformer for a converter. In the control devices 5A and 5B, the ignition timing of the thyristor valve is determined by the phase control circuits 6A and 6B, and the pulse generation device 4 (hereinafter referred to as P
G) and each thyristor valve has 8H, 8L
Command (hereinafter referred to as gate pulse) through the signal line of
Is given. Here, the control device 5 is a double system of the A system and the B system, and even if an abnormality occurs in one system (for example, 5A),
The abnormal system is separated from the normal system (for example, 5B) so that it can operate normally as a DC interconnection facility.
The PG 4 has a function of selecting one of the phase control signals (PHS signals) of the A-system control device 5A and the B-system control device 5B.
【０００３】図３に示すような、直流連系設備において
は、バイパスペア（以下ＢＰＰと記す）と呼ぶ動作があ
る。ＢＰＰとは同じ相のバルブ例えば図３では２Ｕ，２
Ｘが同時に導通している状態即ち、直流回路から見ると
サイリスタバルブにより短絡された状態を言い、図３で
は２Ｖ，２Ｙ又は２Ｗ，２Ｚが導通している状態もＢＰ
Ｐ状態である。[0003] In a DC interconnection facility as shown in Fig. 3, there is an operation called a bypass pair (hereinafter referred to as BPP). A valve having the same phase as BPP, for example, 2U, 2 in FIG.
The state where X is conducting at the same time, that is, the state where the thyristor valve is short-circuited when viewed from the DC circuit. In FIG. 3, the state where 2V, 2Y or 2W, 2Z is conducting is also BP.
P state.
【０００４】ＢＰＰ相の選択は、位相制御回路６Ａ，６
ＢからのＰＨＳ信号とＢＰＰ指令によりＲ相，Ｓ相，Ｔ
相の内いずれか１つの相がＢＰＰとして選択されるよう
になっている。The selection of the BPP phase is performed by selecting the phase control circuits 6A and 6A.
R phase, S phase, T by PHS signal from B and BPP command
Any one of the phases is selected as the BPP.
【０００５】交流系統の事故による交流電圧低下時、Ｂ
ＰＰ動作にて直流系を短絡し、交流系統を切離す。そし
て、交流電圧が正常な電圧に復帰した場合に再起動を行
うシ―ケンスを行うことがある。When the AC voltage drops due to an AC system accident, B
The DC system is short-circuited by the PP operation, and the AC system is disconnected. Then, when the AC voltage returns to a normal voltage, a sequence for restarting may be performed.
【０００６】[0006]
【発明が解決しようとする課題】図３に示すように制御
装置５が、Ａ系，Ｂ系の２重化構成になっている場合、
以下に述べる問題が生じる。As shown in FIG. 3, in the case where the control device 5 has an A-system and B-system duplex configuration,
The following problems arise.
【０００７】制御装置５Ａ，５Ｂは同一構成であるが、
位相制御回路６Ａ，６Ｂ等の制御回路に使用する部品の
特性のバラツキや調整のバラツキ等により出力であるＰ
ＨＳ信号に、制御装置５Ａ，５Ｂでタイミングに差異が
生じることは避けられない。例えば、制御装置５Ａは、
Ｒ相をＢＰＰ相と選択し（２Ｕ，２ＸにＰＨＳ信号を出
力）制御装置５ＢはＳ相をＢＰＰ相と選択（２Ｖ，２Ｙ
にＰＨＳ信号を出力）する場合がある。このように場
合、ＰＧ４は制御装置５Ａもしくは制御装置５ＢのＰＨ
Ｓ信号の内どちらか一方を選択する機能を有するため、
結果的に実際にサイリスタバルブの内ＢＰＰ状態となっ
た相とどちらか一方の制御装置のＢＰＰ選択相に不一致
が生じることになる。The control devices 5A and 5B have the same configuration,
The output P due to variations in the characteristics of components used in the control circuits such as the phase control circuits 6A and 6B and variations in adjustment.
It is inevitable that the HS signals have a difference in timing between the control devices 5A and 5B. For example, the control device 5A
The controller 5B selects the R phase as the BPP phase (outputs a PHS signal to 2U, 2X) and selects the S phase as the BPP phase (2V, 2Y).
Output the PHS signal). In this case, PG4 is the PH of control device 5A or 5B.
Because it has a function to select one of the S signals,
As a result, a mismatch occurs between the phase in which the thyristor valve is actually in the BPP state and the BPP selection phase of one of the control devices.
【０００８】従って、ＢＰＰ状態から再起動する場合、
制御装置５Ａと制御装置５Ｂとでは起動相が異るため、
直流電圧の波形が乱れて、直流電流が急増し転流余裕角
不足で転流失敗となり、再起動を行えないため、交直変
換器の稼動率が低下する等電力融通上好ましくない状態
が発生することがあった。Accordingly, when restarting from the BPP state,
Since the starting phases of the control device 5A and the control device 5B are different,
The waveform of the DC voltage is disturbed, the DC current sharply increases, the commutation fails due to insufficient commutation margin angle, and the restart cannot be performed. There was something.
【０００９】[0009]
【課題を解決するための手段】本発明は上記目的を達成
するために、位相制御回路の出力信号及びＢＰＰ指令信
号が印加され交直変換器のＢＰＰ相を決定するＢＰＰ相
選択回路と、交直変換器の実際にＢＰＰ状態となってい
る相を判別するＢＰＰ状態判別回路と、この回路の出力
信号とＢＰＰ相選択回路の出力信号が印加され、ＢＰＰ
相選択回路で選択されたＢＰＰ相とＢＰＰ状態判別回路
で判別されたＢＰＰ相が不一致の場合、ＢＰＰ相選択回
路で選択されたＢＰＰ相をＢＰＰ状態判別回路で判別さ
れたＢＰＰ相に一致させるＢＰＰ相変更回路を備えたこ
とを特徴とする交直変換器の制御装置。In order to achieve the above object, the present invention provides a BPP phase selection circuit for determining a BPP phase of an AC / DC converter to which an output signal of a phase control circuit and a BPP command signal are applied. BPP state discriminating circuit for discriminating a phase that is actually in the BPP state of the detector, and an output signal of this circuit and an output signal of the BPP phase selecting circuit are applied.
When the BPP phase selected by the phase selection circuit does not match the BPP phase determined by the BPP state determination circuit, the BPP phase selected by the BPP phase selection circuit matches the BPP phase determined by the BPP state determination circuit. A control device for an AC / DC converter, comprising a phase change circuit.
【００１０】[0010]
【作用】前述のように構成することによって、ＢＰＰ相
選択回路で選択されたＢＰＰ相が異なった場合、交直変
換器の実際にＢＰＰ状態となっている相と、いずれかの
ＢＰＰ相選択回路で選択されたＢＰＰ相が不一致とな
る。ＢＰＰ相選択回路で選択されたＢＰＰ相とＢＰＰ状
態判別回路で判別されたＢＰＰ相が不一致の場合、ＢＰ
Ｐ相変更回路によって、ＢＰＰ相選択回路で選択された
ＢＰＰ相をＢＰＰ状態判別回路で判別されたＢＰＰ相に
一致させることが出来る。With the above arrangement, when the BPP phase selected by the BPP phase selection circuit is different, the phase in which the AC / DC converter is actually in the BPP state and the BPP phase selection circuit in one of the BPP phase selection circuits are different. The selected BPP phases do not match. If the BPP phase selected by the BPP phase selection circuit and the BPP phase determined by the BPP state determination circuit do not match, the BP
The BPP phase selected by the BPP phase selection circuit can be made to coincide with the BPP phase determined by the BPP state determination circuit by the P phase change circuit.
【００１１】従って、多重構成された制御装置が異るＢ
ＰＰ相を選択したとしても実際にサイリスタバルブがＢ
ＰＰ状態となった相に制御装置のＢＰＰ相を一致させる
ことができるため、ＢＰＰ状態からの再起動時、直流電
圧の乱れによる電流急変により転流余裕角不足で転流失
敗し、起動出来ないことを防止出来る。Therefore, the multiplexed control devices have different B
Even if the PP phase is selected, the thyristor valve is actually B
Since the BPP phase of the control device can be made to coincide with the phase in the PP state, commutation fails due to insufficient commutation margin angle due to a sudden change in current due to disturbance of the DC voltage upon restarting from the BPP state, and the apparatus cannot be started. Can be prevented.
【００１２】[0012]
【実施例】以下本発明の、一実施例を図面を参照して説
明する。図１は本発明の一実施例を構成図であり、図３
と同じ機能を遂行する装置には同一符号を付してその説
明は省略、ここでは異なる点を説明する。An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention.
Devices that perform the same functions as those described above are denoted by the same reference numerals, and description thereof will be omitted. Here, different points will be described.
【００１３】各サイリスタバルブより導通状態であるが
否かを確認するためのモニタ信号９をＰＧ４に入力す
る。この信号により、どのバルブ相がＢＰＰ状態である
かを判別するＢＰＰ状態判別回路１１により、どのバル
ブ相がＢＰＰ状態であるかを制御装置５Ａ，５Ｂに出力
する。制御装置５Ａ，５Ｂではこの信号をＢＰＰ相変更
回路１０Ａ，１０Ｂに入力し、ＢＰＰ相選択回路７Ａ，
７Ｂにより選択されたＢＰＰ相を変更する構成である。A monitor signal 9 for checking whether or not the thyristor valve is conductive is input to each PG4. Based on this signal, the BPP state determination circuit 11 that determines which valve phase is in the BPP state outputs to the control devices 5A and 5B which valve phase is in the BPP state. Controllers 5A and 5B input this signal to BPP phase change circuits 10A and 10B, and output the signals to BPP phase selection circuits 7A and 10B.
This is a configuration for changing the BPP phase selected by 7B.
【００１４】図２に制御装置５Ａ側のＢＰＰ相変更回路
１０Ａの一実施例を示す。尚、制御装置５Ｂ側のＢＰＰ
相変更回路１０Ｂも同一構成となっているので、その説
明は省略する。FIG. 2 shows an embodiment of the BPP phase change circuit 10A on the control device 5A side. The BPP on the control device 5B side
Since the phase change circuit 10B has the same configuration, the description thereof will be omitted.
【００１５】ＢＰＰ相変更回路１０Ａは、一方の入力端
子にＢＰＰ相選択回路７ＡからのＲ相選択信号、Ｓ相選
択信号、Ｔ相選択信号がそれぞれ印加され、他方の入力
端子にＢＰＰ状態判別回路１１からのＲ相ＢＰＰ状態信
号、Ｓ相ＢＰＰ状態信号Ｔ相ＢＰＰ状態信号がそれぞれ
印加されるオア回路４Ａ１、４Ｂ１、４Ｃ１及びＢＰＰ
状態判別回路１１からのＳ相ＢＰＰ状態信号とＴ相ＢＰ
Ｐ状態信号が印加されるオア回路４Ａ２と、Ｒ相ＢＰＰ
状態信号とＴ相ＢＰＰ状態信号が印加されるオア回路４
Ｂ２と、Ｒ相ＢＰＰ状態信号とＳ相ＢＰＰ状態信号が印
加されるオア回路４Ｃ２と、更にオア回路４Ａ１でセッ
トされオア回路４Ａ２でリセットされるフリップフロッ
プ３Ａ、オア回路４Ｂ１でセットされオア回路４Ｂ２で
リセットされるフリップフロップ３Ｂ、オア回路４Ｃ１
でセットされオア回路４Ｃ２でリセットされるフリップ
フロップ３Ｃで構成される。The BPP phase change circuit 10A has one input terminal to which an R phase selection signal, an S phase selection signal, and a T phase selection signal from the BPP phase selection circuit 7A are applied, and a BPP state determination circuit to the other input terminal. OR circuits 4A1, 4B1, 4C1 and BPP to which the R-phase BPP status signal, the S-phase BPP status signal and the T-phase BPP status signal from
The S-phase BPP state signal from the state determination circuit 11 and the T-phase BP
OR circuit 4A2 to which a P state signal is applied, and R-phase BPP
OR circuit 4 to which a state signal and a T-phase BPP state signal are applied
B2, an OR circuit 4C2 to which the R-phase BPP state signal and the S-phase BPP state signal are applied, a flip-flop 3A set by the OR circuit 4A1 and reset by the OR circuit 4A2, and an OR circuit 4B2 set by the OR circuit 4B1 3B, OR circuit 4C1
And the flip-flop 3C reset by the OR circuit 4C2.
【００１６】多重化された制御装置５Ａ，５Ｂは同一構
成であるものの両者の間には、特性上の差異があるた
め、各々の出力信号であるＰＨＳ信号にはバラツキが生
じる。従って、結果的にＢＰＰ選択相に差異を生じるこ
ととなる。ところが、サイリスタバルブ２Ｕ〜２Ｚは１
台であるため、実際には制御装置５Ａ，５Ｂのいずれか
一方のタイミングで制御される。そこで、サイリスタバ
ルブの状態をモニタ信号でモニタし、これをＰＧ４内の
ＢＰＰ状態判別回路１１に入力し、どの相がＢＰＰ状態
であるかを判別する。制御装置５Ａ，５Ｂ内のＢＰＰ相
変更回路１０Ａ，１０Ｂに、このＢＰＰ状態信号を入力
することにより、各制御装置５Ａ，５Ｂにて選択された
ＢＰＰ相を変更し、実際のＢＰＰ状態の相を一致させる
ことができる。Although the multiplexed control devices 5A and 5B have the same configuration, there is a difference in characteristics between them, so that the PHS signals as output signals vary. Therefore, as a result, a difference occurs in the BPP selection phase. However, the thyristor valves 2U to 2Z are 1
Since the stage is a stand, it is actually controlled at one of the timings of the control devices 5A and 5B. Therefore, the state of the thyristor valve is monitored with a monitor signal, and the monitored signal is input to the BPP state determination circuit 11 in the PG 4 to determine which phase is in the BPP state. By inputting this BPP state signal to the BPP phase change circuits 10A and 10B in the control devices 5A and 5B, the BPP phase selected by each of the control devices 5A and 5B is changed, and the phase in the actual BPP state is changed. Can be matched.
【００１７】即ち、図１において、制御装置５ＡのＢＰ
Ｐ相選択回路７ＡはＲ相を選択し、制御装置５ＢのＢＰ
Ｐ相選択回路７ＢはＳ相を選択したとすれば、図２にお
いてＢＰＰ相変更回路１０ＡはＲ相ＢＰＰ相選択信号を
出力し、図示しないＢＰＰ相変更回路１０ＢはＳ相ＢＰ
Ｐ相選択信号を出力することになる。この結果制御装置
５ＡはＰＧ４にＲ相をＢＰＰにするようなＰＨＳ信号を
指令し、制御装置５ＢはＰＧ４にＳ相をＢＰＰにするよ
うなＰＨＳ信号を指令する。このときＰＧ４では、制御
装置５Ｂの信号を選択したとすれば交直変換器はＳ相が
ＢＰＰ状態となる。That is, in FIG. 1, the BP of the control device 5A is
The P-phase selection circuit 7A selects the R-phase, and the BP of the control device 5B
Assuming that P-phase selection circuit 7B has selected the S-phase, in FIG. 2, BPP phase change circuit 10A outputs an R-phase BPP phase selection signal, and a BPP phase change circuit 10B (not shown) outputs an S-phase BP.
A P-phase selection signal will be output. As a result, the control device 5A instructs the PG4 to issue a PHS signal for changing the R phase to BPP, and the control device 5B instructs the PG4 to issue a PHS signal for changing the S phase to BPP. At this time, in the PG4, if the signal of the control device 5B is selected, the S-phase of the AC / DC converter is in the BPP state.
【００１８】ＢＰＰ状態判別回路１１は交直変換器のＳ
相がＢＰＰ状態となったことを判別しＢＰＰ相変更回路
１０Ａ及び１０Ｂに、Ｓ相ＢＰＰ状態信号を印加する。
ＢＰＰ相変更回路１０Ａは、Ｓ相ＢＰＰ状態信号が印加
されるとフリップフロップ回路３Ａの出力が「１」、３
Ｂが「０」、３Ｃが「０」の状態からオア回路４Ａ２の
出力が「１」となり、フリップフロップ回路３Ａの出力
は「０」、オア回路４Ｂ１の出力が「１」となり、フリ
ップフロップ３Ｂの出力が「１」、オア回路４Ｃ２の出
力が「１」となり、フリップフロップ３Ｃの出力が
「０」となり、Ｓ相のＢＰＰ状態信号と、ＢＰＰ選択回
路により選択されたＢＰＰ相を一致させることが可能と
なる。The BPP state determination circuit 11 uses the S
It is determined that the phase is in the BPP state, and the S-phase BPP state signal is applied to the BPP phase change circuits 10A and 10B.
When the S-phase BPP state signal is applied, the output of the flip-flop circuit 3A becomes “1”,
When B is "0" and 3C is "0", the output of the OR circuit 4A2 becomes "1", the output of the flip-flop circuit 3A becomes "0", the output of the OR circuit 4B1 becomes "1", and the flip-flop 3B Is "1", the output of the OR circuit 4C2 is "1", the output of the flip-flop 3C is "0", and the SPP BPP state signal matches the BPP phase selected by the BPP selection circuit. Becomes possible.
【００１９】この時、図示しないＢＰＰ相変更回路１０
ＢにもＳ相ＢＰＰ状態信号が印加されるが、もともと、
ＢＰＰ相変更回路１０ＢはＳ相ＢＰＰ相選択信号を出力
しているため、ＢＰＰ相変更回路１０Ｂの出力は変化し
ない。At this time, a BPP phase change circuit 10 (not shown)
The S phase BPP state signal is also applied to B, but originally,
Since the BPP phase change circuit 10B outputs the S phase BPP phase selection signal, the output of the BPP phase change circuit 10B does not change.
【００２０】前述説明では、制御装置は２重系、パルス
発生装置は１重系として説明したが制御装置が３重系以
上の多重系、パルス発生装置が２重系以上の多重系とし
も同様に実施できるものである。In the above description, the control device is described as a double system, and the pulse generator is described as a single system. However, the same applies when the control device is a multiplex system of three or more systems and the pulse generator is a multiplex system of two or more systems. It can be implemented in
【００２１】[0021]
【発明の効果】以上説明のように本発明によれば、多重
系された制御装置が異るＢＰＰ相を選択したとしても実
際にサイリスタバルブがＢＰＰ状態となった相に制御装
置のＢＰＰ相を一致させることができるため、ＢＰＰ状
態からの再起動時、直流電圧の乱れによる電流急変によ
り転流余裕角不足で転流失敗し、起動出来ないことを防
止し、円滑な再起動を可能とし、このため交直変換器の
稼動率を向上させることができ、電力融通の信頼性を向
上できる。As described above, according to the present invention, even if the multiplexed control device selects a different BPP phase, the BPP phase of the control device is changed to the phase in which the thyristor valve is actually in the BPP state. Since it is possible to match, when restarting from the BPP state, commutation failure due to insufficient commutation margin angle due to sudden change in current due to DC voltage disturbance, preventing that it can not be started, enabling smooth restart, Therefore, the operation rate of the AC / DC converter can be improved, and the reliability of power interchange can be improved.
【図１】本発明の一実施例を示す交直変換器の制御装置
の構成図。FIG. 1 is a configuration diagram of a control device of an AC / DC converter according to an embodiment of the present invention.
【図２】図１のバイパスペアリセット回路の具体的一例
を示すブロック図。FIG. 2 is a block diagram showing a specific example of a bypass pair reset circuit of FIG. 1;
【図３】従来の交直変換器の制御装置の構成図。FIG. 3 is a configuration diagram of a control device for a conventional AC / DC converter.
１ …ＤＣリアクトル ２Ｕ〜２Ｚ…
サイリリスタバルブ ３ …変換器用変圧器 ４…
パルス発生装置 ５Ａ，５Ｂ …制御装置 ６Ａ，６Ｂ…
位相制御回路 ７Ａ，７Ｂ …ＢＰＰ相選択回路 ８Ｈ，８Ｌ…
点弧パルス用信号線 ９ …バルブモニタ信号 １０Ａ，１０Ｂ…
ＢＰＰ相変更回路 １１ …ＢＰＰ状態判別回路1 ... DC reactor 2U-2Z ...
Thyristor valve 3… Transformer transformer 4…
Pulse generators 5A, 5B ... Control devices 6A, 6B ...
Phase control circuit 7A, 7B ... BPP phase selection circuit 8H, 8L ...
Signal line for firing pulse 9… Valve monitor signal 10A, 10B…
BPP phase change circuit 11 ... BPP state determination circuit
Claims (1)
交直変換器を構成するサイリスタバルブの点弧位相を制
御する位相制御回路と、交直変換器のバイパスペア相を
決定するバイパスペア相選択回路を有し、当該制御装置
を少くとも２組具備した多重構成の制御装置を備えた交
直変換器の制御装置において、前記交直変換器の実際に
バイパスペア状態となっている相を判別するバイパスペ
ア状態判別手段と、前記制御装置のバイパスペア相選択
回路の選択相をバイパスペア状態判別手段で判別した相
に変更するバイパスペア相変更手段を具備したことを特
徴とする交直変換器の制御装置。A control device for controlling an AC / DC converter includes:
A multiplex system having a phase control circuit for controlling the firing phase of a thyristor valve constituting an AC / DC converter, and a bypass pair phase selecting circuit for determining a bypass pair phase of the AC / DC converter, and comprising at least two sets of the control devices. In a control device for an AC / DC converter provided with a control device having a configuration, a bypass pair state determining means for determining a phase of the AC / DC converter that is actually in a bypass pair state; and a bypass pair phase selection circuit of the control device. A control device for an AC / DC converter, comprising: bypass pair phase changing means for changing a selected phase to a phase determined by a bypass pair state determining means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3194670A JP2894651B2 (en) | 1991-08-05 | 1991-08-05 | Control device for AC / DC converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3194670A JP2894651B2 (en) | 1991-08-05 | 1991-08-05 | Control device for AC / DC converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0549162A JPH0549162A (en) | 1993-02-26 |
| JP2894651B2 true JP2894651B2 (en) | 1999-05-24 |
Family
ID=16328356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3194670A Expired - Fee Related JP2894651B2 (en) | 1991-08-05 | 1991-08-05 | Control device for AC / DC converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2894651B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132791B (en) * | 2017-04-24 | 2020-10-30 | 许继电气股份有限公司 | Converter valve control device |
-
1991
- 1991-08-05 JP JP3194670A patent/JP2894651B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0549162A (en) | 1993-02-26 |
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