• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A thyristor rectifier for high voltages includes a number of seriesconnected thyristors each of which has a control device. A control circuit for the whole rectifier includes a control pulse transmitter and a signal emitter for each thyristor which emits an indicating signal when the voltage in the conducting direction of the relevant thyristor reaches a predetermined value. The control circuit includes an input circuit to which signals for ignition of the whole thyristor rectifier are connected. The signal emitters and input circuit are connected to an AND-gate. The different signal emitters are connected to the AND-gate by an OR-gate. The OR-gate is connected to the AND-gate by a flip-flop and the output side of the AND-gate is connected to the flip-flop in such a way that a signal from the OR-gate energizes the flip-flop while a signal from the AND-gate switches it off.
    公开号:SU963482A3
    申请号:SU731929733
    申请日:1973-06-13
    公开日:1982-09-30
    发明作者:Джэксон Пер-Олоф；@Ф.Юхлин Ларс-Эрик；Остлунд Бернт
    申请人:Алменна Свенска Электриска Актиеболагет (Фирма)；
    IPC主号:
    专利说明:

    (St) high voltage THYRISTOR RECTIFIER
    one
    The invention relates to high voltage converter technology and can be used in direct current transmission line converters.
    A high-voltage thyristor valve is known, which contains series-connected thyristors, threshold direct voltage sensors, a control unit and a transmission channel of control pulses GO.
    However, this device is characterized by insufficient reliability when applying direct voltage without full restoration-18 or the locking properties of the thyristor.
    Closest to the proposed by. technical means and the achieved result high-voltage thyristor rectifier 41tel containing 20
    series-connected thyristors, direct voltage sensors, a pulse generator, a soft circuit AND and a distributor. impulses C23 "
    However, the known device is characterized by insufficient reliability and increased power consumption for control.
    The purpose of the invention is to increase reliability and reduce control power.
    权利要求:
    Claims (2)
    [1]
    The goal is achieved by the fact that a high-voltage thyristor rectifier containing series-connected thyristors, threshold sensors for direct voltage, a pulse generator and a valve circuit AND pulse distributor is equipped with an OR circuit valve, a trigger, one input of which is connected to the output circuit or another the trigger input is connected to a pulse generator connected through an AND circuit and a trigger output, each thyristor connected to one of the direct voltage sensors whose outputs are connected to the inputs valve circuit IL1. 39 The drawing shows a thyristor rectifier circuit. The device contains a high-voltage thyristor-rectifier 1, series-connected thyristors, direct voltage threshold sensors 2, control unit 3, valve circuit I h, pulse distributor 5, valve circuit OR 6, trigger 7, one input of which is connected to the output of the circuit OR 6, another trigger input 7 is connected to a pulse generator 8, connected through circuit AND to trigger output 7, each thyristor connected to one of the direct voltage sensors 2, the outputs of which are connected to the inputs of the valve circuit OR 6. Moreover, device The device includes optical fibers 9, detectors 10, delay circuit 11, additional circuit OR 12 and recovery block 13. The proposed device works as follows. The signals from blocks 2 are transmitted via optical fibers 9 to detectors 10, which through the circuit OR 6 are fed to the input of the trigger 7, which switches and delay circuit 11 and transmits the signal to AND circuit C. The delay block 11, the voltage on different thyristors the thyristors are ready to turn on before the end of the triggering pulse. The second input of the circuit AND k through the OR circuit is supplied with working pulses from the control unit 3 or from the block 13 of restoring the locking properties of the thyritors. The signal from the circuit AND is transmitted to the generator 8 control pulses which through the distributor 5 pulses through the optical fibers 9 are fed to the inputs of the sensors 2, which consist of direct voltage sensors and control pulse amplifiers. According to the present invention, the same circuit produces control pulses during normal operation if the voltage on the thyristors is positive and also generates repeated pulses to turn on the thyristors if they did not have time to restore the locking properties by the time the voltage rises. A: The use of the proposed rectifier increases reliability and reduces control power. Claims A high-voltage thyristor rectifier comprising thyristors connected in series, threshold voltage sensors, a pulse generator, a gate circuit AND, and a pulse distributor, characterized in that it is equipped with a gate circuit OR, triggering to increase reliability and reduce control power. , one input of which is connected to the output of the OR circuit, another trigger input is connected to a pulse generator connected via the AND circuit to the trigger output, each thyristor connected to one of direct voltage sensors, the outputs of which are connected to the inputs of the valve circuit OR. Sources of information taken into account in the examination 1. Swedish Patent No. 365915, cl. H 02 M 1/18, 1972.
    [2]
    2. Swedish patent number Zbch82b, cl. H 02 M 1/18, 1972.
    类似技术:
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    GB1295840A|1972-11-08|
    GB695199A|1953-08-05|Improvements in and relating to electrical pulse code signalling systems
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    SU470066A1|1975-05-05|Controlled sawtooth generator
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    SU964845A1|1982-10-07|Transistorized converter with protection
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    SU588604A1|1978-01-15|Method of overvoltage protection of frequency converter
    SU508917A1|1976-03-30|Time-amplitude converter
    SU411617A1|1974-01-15|
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    SU771867A1|1980-10-15|Pulse modulator
    同族专利:
    公开号 | 公开日
    DE2328771C3|1988-02-11|
    JPS5843993B2|1983-09-30|
    FR2189922A1|1974-01-25|
    JPS4958743A|1974-06-07|
    CH556617A|1974-11-29|
    SE364412B|1974-02-18|
    FR2189922B1|1980-07-18|
    DE2328771A1|1974-01-10|
    GB1425890A|1976-02-18|
    US3878448A|1975-04-15|
    DE2328771B2|1981-01-29|
    CA983576A|1976-02-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3424948A|1966-12-12|1969-01-28|Westinghouse Electric Corp|Overvoltage protection circuit for controlled solid state valves|
    SE337421B|1967-12-01|1971-08-09|Asea Ab|
    SE343181B|1968-05-08|1972-02-28|Asea Ab|
    SE338099B|1969-02-14|1971-08-30|Asea Ab|
    DE2003659A1|1969-02-17|1971-01-07|Asea Ab|Power converter with thyristor valves|
    US3654541A|1969-06-26|1972-04-04|Gen Electric|Thyristor state sensor|
    DE2018833C3|1970-04-15|1978-10-05|Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt|Arrangement for monitoring the blocking capability of converter systems|JPS5312286Y2|1972-09-01|1978-04-03|
    JPS5333459B2|1975-04-07|1978-09-14|
    CA1068782A|1976-08-23|1979-12-25|Siemens Aktiengesellschaft|Protective circuit for thyristors|
    JPS52155041A|1976-06-18|1977-12-23|Hitachi Ltd|Ac power relay circuit|
    JPS5418663A|1977-07-13|1979-02-10|Hitachi Ltd|Gate control unit for thyristor valve|
    JPS6142512B2|1978-12-22|1986-09-22|Tokyo Shibaura Electric Co|
    DE3035716C2|1980-09-22|1986-02-06|Siemens AG, 1000 Berlin und 8000 München|Device for the ignition of thyristors connected in series|
    DE3035689C2|1980-09-22|1986-02-06|Siemens AG, 1000 Berlin und 8000 München|Arrangement for triggering two thyristor pairs connected in series, each consisting of two thyristors connected in anti-parallel|
    JPS57170065A|1981-04-14|1982-10-20|Toshiba Corp|Inspection of gate photosignal of photo thyristor converter|
    CH662220A5|1982-05-05|1987-09-15|V Elektrotech I V I Lenina|METHOD AND ARRANGEMENT FOR IMPULSE CONTROL OF A HIGH VOLTAGE THYRISTOR VALVE.|
    JPH0258849B2|1982-07-12|1990-12-10|Kansai Denryoku Kk|
    JPS6337575B2|1983-11-02|1988-07-26|Tokyo Shibaura Electric Co|
    KR870003102Y1|1984-09-11|1987-09-19|배경석|A filtration device|
    DE3531171C1|1985-08-29|1986-11-20|Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt|Circuit arrangement for drive and trigger monitoring of a power semi-conductor|
    JPS62138055A|1985-12-10|1987-06-20|Toshiba Corp|Protective device for thyristor converter|
    JPS62141960A|1985-12-16|1987-06-25|Toshiba Corp|Defect detector|
    EP3417482A1|2016-04-06|2018-12-26|Siemens Aktiengesellschaft|Electrical device having a semiconductor circuit|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE815072A|SE364412B|1972-06-21|1972-06-21|
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