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公开(公告)号：US4475152A
公开(公告)日：1984-10-02
申请号：US381444
申请日：1982-05-24
IPC分类号： H01L23/473 , G12B15/02 , H02M7/04 , H02M7/12 , H02M1/18
CPC分类号： G12B15/02 , H01L23/473 , F28F2210/02 , H01L2924/0002
摘要： In a water-cooled high voltage device, a plurality of electrical modules are divided into a plurality of electrical units. The electrical modules are cooled by cooling water supplied from a pump through pipes which are disposed in the electrical units, respectively. The size of the pipe diameter is determined to be enough to allow cooling water to flow at a relatively low pressure and to properly cool the electrical modules.
摘要翻译： 在水冷高压装置中，多个电气模块被分成多个电气单元。 电气模块通过分别通过设置在电气单元中的管道从泵供应的冷却水来冷却。 管径的尺寸被确定为足以允许冷却水以相对低的压力流动并且适当地冷却电气模块。
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2.发明授权Protective circuit for thyristor controlled systems and thyristor converter embodying such protective circuit 失效用于晶闸管控制系统的保护电路和体现这种保护电路的晶闸管转换器
公开(公告)号：US4442480A
公开(公告)日：1984-04-10
申请号：US351808
申请日：1982-02-24
IPC分类号： H03K17/0814 , H03K17/10 , H02M1/18
CPC分类号： H03K17/08144 , H03K17/105
摘要： A snubber circuit coupled across each thyristor to be gated in a chain of thyristors determines the critical output of a NOR LATCH whenever one snubber circuit could not be charged and discharged under normal gating conditions because of a short failure.
摘要翻译： 在每个晶闸管上耦合的缓冲电路将被门控在一个晶闸管中，每当一个缓冲电路由于短时间故障而在正常选通条件下不能充电和放电时，就可以确定NOR LATCH的临界输出。
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公开(公告)号：US4159515A
公开(公告)日：1979-06-26
申请号：US887493
申请日：1978-03-17
申请人： Paul S. Walkowiak
发明人： Paul S. Walkowiak
CPC分类号： H02M7/48
摘要： A control system is provided for the accurately timed control of switching inverter circuitry; for example, an inverter that produces a 115VAC/60HZ output from a 12 V DC source such as a vehicle battery. The control system utilizes an internal reference source and supervisory control circuitry to determine accurate and orderly start up, shut down, control of the inverter switching elements and automatic shut down upon the occurrence of predetermined sensed conditions including low input voltage from the source and excessive output current through the load. The switching elements of the inverter are each controlled to produce respective outputs of predetermined active/inactive duty cycles each switching cycle with an accurate inactive period being established between the active periods of each switching element. Thus, induced transients due to inductive loads and the like are allowed to decay to safe levels prior to the switching transistion between switching elements to reduce undesirable effects on the inverter circuitry and the switching elements.
摘要翻译： 提供了一种用于开关逆变器电路的精确定时控制的控制系统; 例如，产生从诸如车辆电池的12V DC电源输出的115VAC / 60HZ的逆变器。 控制系统利用内部参考源和监视控制电路来确定逆变器开关元件的准确和有序启动，关闭和控制，并且在发生包括来自源的低输入电压和过大输出的预定感测条件时自动关闭 电流通过负载。 逆变器的开关元件各被控制以产生预定的有效/无效占空比的各个输出，每个开关周期在每个开关元件的有效周期之间建立准确的无效期。 因此，由于感性负载等引起的感应瞬变被允许在开关元件之间的开关转换之前衰减到安全水平，以减少对逆变器电路和开关元件的不期望的影响。
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4.发明授权Converter protection circuit operative to limit and counteract transformer saturation 失效转换器保护电路用于限制和抵消变压器饱和
公开(公告)号：US4127894A
公开(公告)日：1978-11-28
申请号：US851519
申请日：1977-11-14
CPC分类号： H02M1/40 , H02M3/3378
摘要： Primary and secondary currents of a converter transformer in a double-ended converter are continuously monitored to detect the onset of saturation in the magnetic core of the transformer. When the onset condition is detected, the conductive roles of the oppositely phased switching transistors in the converter are reversed to limit and counteract the onset of saturation in the magnetic core of the transformer.
摘要翻译： 连续监测双端转换器中转换变压器的初级和次级电流，以检测变压器磁芯的饱和开始。 当检测到起动条件时，转换器中反相开关晶体管的导电作用被反转，以限制和抵消变压器的磁芯中的饱和开始。
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公开(公告)号：US4107771A
公开(公告)日：1978-08-15
申请号：US770736
申请日：1977-02-22
CPC分类号： H02M7/517
摘要： A circuit for shutting down an inverter that includes at least a series combination of first and second gate controlled rectifiers and a load. The circuit is comprised of means for sensing the direction and magnitude of the instantaneous current flowing through the load, and means responsive to the direction and magnitude of the sensed current for generating an output signal when the magnitude of the current exceeds a predetermined threshold level and the current is flowing in a first direction. The circuit further comprises means responsive to the simultaneous receiving of a shutdown signal and the generated output signal for further generating a gating pulse to be applied to the second gate controlled rectifier to cause the current flowing through the load to quickly extinguish. Further included is means responsive to the shutdown signal for inhibiting further regular gating of the gate controlled rectifiers to ensure quick turn off of the inverter.
摘要翻译： 一种用于关闭逆变器的电路，所述逆变器至少包括第一和第二门控整流器和负载的串联组合。 该电路包括用于感测流过负载的瞬时电流的方向和幅度的装置，以及响应于感测电流的方向和幅度的装置，用于当电流大小超过预定阈值电平时产生输出信号， 电流在第一方向流动。 电路还包括响应于同时接收关闭信号和产生的输出信号的装置，用于进一步产生施加到第二栅极控制的整流器的选通脉冲，以使流过负载的电流快速熄灭。 还包括响应于关断信号的装置，用于抑制门控整流器的进一步规则门控，以确保逆变器快速关闭。
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公开(公告)号：US4020410A
公开(公告)日：1977-04-26
申请号：US635037
申请日：1975-11-25
CPC分类号： H02M7/7575 , H02M7/162 , Y02E60/60
摘要： Disclosure is made of a rectifier-inverter system of a converter substation intended for the transmission of energy between a.c. networks having different frequencies, which system comprises one or more pairs of rectifier and inverter converters connected to a common d.c. circuit.According to the invention, the poles of at least one rectifier or inverted converter are connected to a protective grounding via resistor-capacitor elements.The absence of direct contact with the ground in the d.c. circuit rules out the possibility of a low-resistance closed circuit being formed as a result of a short-circuit earthing at any point of the d.c. circuit. This reduces the voltage across the insulation with respect to the ground at each pole of all the converters and diminishes the steady voltage component across the insulation with respect to the ground of transformer valve windings.
摘要翻译： 公开了一种用于在交流电之间传输能量的转换器变电站的整流器 - 逆变器系统。 具有不同频率的网络，该系统包括一对或多对连接到公共直流的整流器和逆变器转换器。 电路。
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7.发明授权Apparatus for protecting the thyristors of a high-voltage controlled converter from overvoltage 失效用于保护高压控制转换器的晶闸管免于过电压的装置
公开(公告)号：US3943427A
公开(公告)日：1976-03-09
申请号：US487796
申请日：1974-07-11
申请人： Jury Georgievich Tolstov , Vladimir Efremovich Skorovarov , Boris Ilich Grinshtein , Valentina Gavrilovna Stepanova , Ivan Pavlovich Bashkatov , Jury Danilovich Vinitsky , Valery Ottovich Balyasinsky , Valery Pavlovich Zhmurov , Alexandr Venediktovich Natalkin , Grigory Bentsionovich Lazarev
发明人： Jury Georgievich Tolstov , Vladimir Efremovich Skorovarov , Boris Ilich Grinshtein , Valentina Gavrilovna Stepanova , Ivan Pavlovich Bashkatov , Jury Danilovich Vinitsky , Valery Ottovich Balyasinsky , Valery Pavlovich Zhmurov , Alexandr Venediktovich Natalkin , Grigory Bentsionovich Lazarev
摘要： An apparatus for protecting the thyristors of a high-voltage controlled converter against overvoltage, said thyristors being connected to form a chain of successively connected thyristor modules, each of which comprises at least one thyristor. The protecting apparatus consists of an additional circuit comprising at least one link formed by two avalanche diodes connected in series opposition, said circuit being connected parallel to the chain of thyristor modules. The additional circuit serves to limit the magnitude of the voltage applied to the thyristor modules. The protecting apparatus further includes a surge arrester controlled by signals from a current sensor whose input is connected in said additional circuit. In accordance with signals from the current sensor, the controlled surge arrester limits the voltage across the additional circuit in case of overvoltage. The apparatus is intended for protecting a chain of thyristor modules of high-voltage controlled converters used, for instance, in rectifier and inverter substations of direct current transmission lines, against overvoltage.
摘要翻译： 一种用于保护高压控制转换器的晶闸管免受过电压的装置，所述晶闸管被连接以形成连续连接的可控硅模块链，每个晶闸管模块包括至少一个晶闸管。 该保护装置包括一个附加电路，该附加电路包括至少一个由串联相对的两个雪崩二极管形成的链路，所述电路与晶闸管模块链平行连接。 附加电路用于限制施加到晶闸管模块的电压的大小。 保护装置还包括由来自电流传感器的信号控制的电涌放电器，其输入端连接在所述附加电路中。 根据来自电流传感器的信号，受过电压控制的避雷器在过电压情况下会限制额外电路的电压。 该装置旨在用于保护用于例如直流输电线路的整流器和逆变器变电站中的高压控制转换器的可控硅模块链，以防过电压。
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8.发明授权
公开(公告)号：US3935527A
公开(公告)日：1976-01-27
申请号：US497182
申请日：1974-08-14
CPC分类号： H02M1/32 , Y10S323/908
摘要： A converter circuit includes an inrush current limit circuit to limit the initial transient surge of inrush current to a power supply upon the initial application of voltage to the power supply input. After the initial start-up transient inrush current surge, the inrush current limit circuit is switched out of the input signal path to reduce power dissipation during normal steady state operation of the circuit. If the input voltage magnitude decreases significantly at any time, the inrush current limit circuit is reset to limit any further current surges.
摘要翻译： A转换器电路包括浪涌电流限制电路，以在初始向电源输入施加电压时限制对电源的浪涌电流的初始瞬态浪涌。 在初始启动瞬时浪涌电流浪涌之后，浪涌电流限制电路从输入信号路径切换，以在电路的正常稳态运行期间降低功耗。 如果输入电压幅度在任何时候都显着降低，浪涌电流限制电路将被复位，以限制任何进一步的电流浪涌。
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公开(公告)号：US3919620A
公开(公告)日：1975-11-11
申请号：US47241574
申请日：1974-05-22
申请人： GEN ELECTRIC
CPC分类号： H02M7/5155
摘要： An impulse commutated inverter is provided with control apparatus for firing a first commutating rectifier, sensing the subsequent flow of capacitor overcharge current in a parallel reset resistor and delaying a fixed time interval after current flow is first sensed before an opposite serially connected commutating rectifier is permitted to fire. The inverter is thus allowed to generate minimum pulse widths to achieve the maximum possible output voltage in pulse width modulation operation without increasing the risk of shoot-through resulting from simultaneous conduction of the two commutating rectifiers.
摘要翻译： 脉冲整流逆变器设置有用于点火第一整流整流器的控制装置，感测并联复位电阻器中的电容器过充电电流的随后流动，并且在允许在相反的串联连接整流器之前首先感测到电流流动之后延迟固定的时间间隔 开火。 因此，逆变器被允许产生最小脉冲宽度以在脉宽调制操作中实现最大可能的输出电压，而不增加由两个换向整流器的同时导通引起的直通的风险。
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10.发明授权Protection means against auto-ignition for the rectifiers of a static converter 失效防静电转换器整流器自动点火的保护措施
公开(公告)号：US3865438A
公开(公告)日：1975-02-11
申请号：US784370
申请日：1970-02-02
申请人： ASEA AB
CPC分类号： H02M1/088 , H02M7/00 , H02M7/7575 , Y02E60/60
摘要： In a static converter with thyristor-rectifiers, a protection against auto-ignition includes an arrangement for sensing the polarity over the rectifier, and an And-gate. The sensing arrangement emits a first signal to the And-gate when a voltage after a commutation becomes negative and a second signal when a voltage after a commutation becomes positive. The And-gate is connected to the ignition system of the rectifiers to supply both signals thereto. The connecting means for the first signal includes a delay device which delays the signal by a time corresponding to the longest recovery time for the thyristors, so that, if the second signal is emitted during this time, an ignition signal is allowed to pass the And-gate.
摘要翻译： 在具有晶闸管整流器的静态转换器中，防止自动点火的保护包括用于感测整流器极性的安排和与门。 当换向之后的电压变为负时，感测装置向And-gate发射第一信号，当换向之后的电压变为正时，感测装置发出第一信号。 和门连接到整流器的点火系统以向其提供两个信号。 用于第一信号的连接装置包括延迟装置，该延迟装置将信号延迟与晶闸管的最长恢复时间相对应的时间，使得如果在该时间期间发射第二信号，则允许点火信号通过And -门。
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