-
1.发明申请公开(公告)号：US20170278599A1
公开(公告)日：2017-09-28
申请号：US15505915
申请日：2015-09-29
发明人： Taixun FANG , Xiang ZHANG , Lei LIU , Zhao LI , Guangtai ZHANG , Fengfeng DING , Huiliang ZHANG
CPC分类号： H01C1/08 , H01C1/01 , H01C1/014 , H01C1/028 , H01C1/12 , H01C1/14 , H01C3/10 , H01L23/46 , H05B3/48
摘要： Disclosed are a resistor, a heat dissipater and a combinatory device of the resistor and the heat dissipater, and relates to the field of power electronics. The resistor is cylindrical, and comprises a metal end, an insulating part, a casing, metal bars, a resistor wire, thermally conductive insulating fillers and a metal connection mechanism. The metal connection mechanism of the resistor and the heat dissipater are connected by means of direct contact. The structure and the connection method can shorten the length of the resistor, completely insulate the electrical circuits of the resistor from the possible leakage of the water inlet- and outlet-pipe of the heat dissipater, and enable the combinatory device of the resistor and the heat dissipater to be structurally more compact and the connections thereof cleaner.
-
公开(公告)号：US20180302993A1
公开(公告)日：2018-10-18
申请号：US15748613
申请日：2016-07-13
发明人： Chihan CHEN , Taixun FANG , Fan YANG , Biao GAO , Lele LI , Lei LIU
CPC分类号： H05K5/0008 , H05K5/00 , H05K5/02 , H05K7/1407
摘要： A shell structure for a thyristor trigger unit comprises an integrally-formed shell body with a holder and a cuboid structure, and a side plate. The cuboid structure is a cuboid with an opening in its front where an open face is formed at the front opening of the cuboid. The cuboid further includes a rear panel, a left panel, a right panel, an upper panel, and a lower panel. The holder includes a square retaining plate and two triangular stiffener plates. The square retaining plate is formed by a bottom panel extending towards a side of the left panel in a long side direction of the cuboid while the triangular stiffener plates are fixedly connected between the square retaining plate and the left panel. The side plate is mated with and detachably mounted on the open face to produce a sealed 6-face cuboid structure by sealing off said open face.
-
公开(公告)号：US20190190258A1
公开(公告)日：2019-06-20
申请号：US16318699
申请日：2017-04-25
发明人： Wei SHI , Bing YANG , Wei LV , Wenjie WANG , Yeyuan XIE , Taixun FANG , Dongming CAO
摘要： A closing control method for a high-voltage DC circuit breaker. The method comprises: closing breaking units of the transfer branch (2) group by group, then closing the main branch (1), and finally open the transfer branch. During the process of closing the breaking units of the transfer branch group by group, determine whether there is a fault in the power transmission system after closing current breaking unit group. if there is no fault, proceed to close the next breaking unit group until all breaking unit groups are closed before proceeding to the next step; if there is a fault, all the breaking units that have been closed are opened and the closing operation is ended. The method can pre-charge the power transmission system during the closing process of the high-voltage DC circuit breaker, and lower the overvoltage and system oscillation caused by the closing operation.
-
公开(公告)号：US20180196099A1
公开(公告)日：2018-07-12
申请号：US15739750
申请日：2017-03-01
发明人： Shengfu GAO , Taixun FANG , Yongping WANG , Xiang ZHANG , Weiming PAN , Ming YUAN , Guqing ZHOU
摘要： Within a predetermined time range, record time information of status indication signals fed back by thyristor control units (TCU) of a converter valve. Perform, statistics and comparison of the pieces of time information using a bias statistics method. Mark, a thyristor level whose bias exceeds a preset value. And determine a probability of failure in the thyristor according to the marking result.
-
公开(公告)号：US20190097411A1
公开(公告)日：2019-03-28
申请号：US16086011
申请日：2017-04-17
发明人： Dongming CAO , Taixun FANG , Yeyuan XIE , Bing YANG , Wei SHI , Wei LV , Wenjie WANG , Bin LIU , Tao WANG
摘要： A bridge-type circuit comprises a H-bridge switch module and a buffering and reclosing module. The H-bridge switch module comprises four power semiconductor switch devices. Every two of the four power semiconductor switch devices are connected in series in the same direction to form a bridge arm, and the two bridge arms are further connected in parallel. Middle points of the two bridge arms respectively serve as an input terminal and an output terminal. The buffering and reclosing module is connected in parallel with the two bridge arms of the full bridge module. Also provided are a direct current breaking device formed by connecting the above bridge-type circuits in cascade and a control method thereof. The direct current breaking device is provided with the buffering and reclosing module, such that line voltage fluctuation generated during a reclosing operation is small.
-
公开(公告)号：US20180262120A1
公开(公告)日：2018-09-13
申请号：US15573837
申请日：2016-07-13
发明人： Xiang ZHANG , Lei LIU , Taixun FANG , Chihan CHEN , Zhao LI , Haiying LI , Fengfeng DING
IPC分类号： H02M7/00
摘要： A converter valve includes a top shielding cover, a bottom shielding cover, at least two vertically stacked valve layers, and a maintenance platform. The top shielding cover is disposed at an upper portion of an uppermost valve layer. The bottom shielding cover is disposed at a lower portion of a lowermost valve layer. Each of the valve layers comprises two valve modules disposed side-by-side in a horizontal direction. The two valve modules are electrically connected via a busbar and mechanically connected via securing connectors. A lower valve layer is connected to an upper valve layer in a suspended manner. A body of the maintenance platform is located between horizontal planes on which two vertically adjacent valve layers are located, or between horizontal planes on which the lowermost valve layer and the bottom shielding cover are located.
-
公开(公告)号：US20180218965A1
公开(公告)日：2018-08-02
申请号：US15747769
申请日：2016-07-13
发明人： Xiang ZHANG , Taixun FANG , Dongming CAO , Chihan CHEN , Guangtai ZHANG , Haibin LIU
IPC分类号： H01L23/473 , H01L23/367 , H01L25/11 , H01C1/08
CPC分类号： H01L23/473 , H01C1/08 , H01L23/367 , H01L25/117 , H03K17/72
摘要： A thyristor assembly radiator for a DC converter valve. A water discharging port of an Nth radiator is communicated with a water discharging port of an (N−2)th radiator. A water feeding port of the Nth radiator is communicated with a water feeding port of an (N+2)th radiator. Or, a water feeding port of the Nth radiator is communicated with a water feeding port of the (N−2)th radiator, and a water discharging port of the Nth radiator is communicated with a water discharging port of the (N+2)th radiator. A water discharging port of an Mth radiator is communicated with a water discharging port of an (M−2)th radiator, and a water feeding port of the Mth radiator is communicated with a water feeding port of an (M+2)th radiator, or a water feeding port of an Mth radiator is communicated with a water feeding port of the (M−2)th radiator, and a water discharging port of the Mth radiator is communicated with a water discharging port of an (M+2)th radiator. Water feeding ports of the last two radiators are communicated. According to the radiator, the number of joints of a cooling system is reduced, the risk of leakage is lowered, the operation reliability of a converter valve is improved, the maintenance difficulty is lowered, and the maintenance time is shortened.
-
公开(公告)号：US20200011923A1
公开(公告)日：2020-01-09
申请号：US16496384
申请日：2018-06-20
发明人： Fan YANG , Lei LIU , Xiang ZHANG , Chen ZHOU , Weiming PAN , Taixun FANG
IPC分类号： G01R31/26 , G01R31/333
摘要： A thyristor valve test system based on cooperation of logic functions of software, wherein the test system comprises: a thyristor valve (5) to be tested, a VBE (3) and a tester (4), and the VBE (3) has a dedicated test mode, the tester (4) provides three steps for each test item. The thyristor valve (5) to be tested and the VBE (3) are connected by optical fibers (1), and the thyristor valve (5) to be tested and the tester (4) are connected by cables (2), and there is no connection between the VBE (3) and the tester (4).
-
公开(公告)号：US20190020193A1
公开(公告)日：2019-01-17
申请号：US16066653
申请日：2017-04-17
发明人： Dongming CAO , Taixun FANG , Yeyuan XIE , Bing YANG , Wei SHI , Wei LV , Wenjie WANG , Bin LIU , Tao WANG , Lele LI
CPC分类号： H02H7/268 , H01H9/542 , H01H33/596 , H01H2009/543 , H01H2009/544 , H02H3/087
摘要： A direct current switch-off device comprises an on-state current branch circuit and a current commutating and breaking unit which are connected in parallel. The on-state current branch circuit has a mechanical switch (S) and a current transfer module which are connected in series. The current commutating and breaking unit comprises a bridge-type branch circuit and a current-breaking branch circuit. The current-breaking branch circuit and two bridge arms of the bridge-type branch circuit are connected in parallel. The current-breaking branch circuit comprises a nonlinear resistor (RI) and a valve group consisting of fully-controlled devices connected in series. The nonlinear resistor (RI) and the valve group are connected in parallel. Two ends of each fully-controlled device in the valve group are connected in parallel with a buffering and reclosing circuit.
-
公开(公告)号：US20170133835A1
公开(公告)日：2017-05-11
申请号：US15119730
申请日：2013-12-27
发明人： Dongming CAO , Taixun FANG , Yu WANG , Hao YANG , Bing YANG , Wei SHI , Wei LU
摘要： An apparatus for breaking a line bidirectional current and a control method therefore. The apparatus comprises a breaking current branch circuit and an on-state current branch circuit, the breaking current branch circuit comprises one nonlinear resistor being connected in parallel to one first power semiconductor device, or one nonlinear resistor being connected in parallel to at least two first power semiconductor devices mutually connected in series; and the on-state current branch circuit comprises at least one bidirectional power semiconductor switch being connected in series to at least one high-speed isolation switch. The apparatus also comprises a bridge-type branch circuit. An apparatus for breaking a line bidirectional current, thereby greatly reducing costs of the apparatus and reducing difficulty in device layout, mounting and wiring of the apparatus on the premise of ensuring a breaking speed that is quick enough and a low loss.
-
-
-
-
-
-
-
-
-
搜索结果
11 条记录 (耗时 0.022 秒)
