-
公开(公告)号：EP3531532A1
公开(公告)日：2019-08-28
申请号：EP18739444.0
申请日：2018-01-12
发明人： DING, Jiudong , LU, Yu , DONG, Yunlong , LI, Haiying , TIAN, Jie , QIU, Defeng , JIANG, Tiangui , LIAN, Jianyang
IPC分类号： H02J7/04
摘要： The present invention discloses a charging method for a sub-module based hybrid converter. By setting a half-controlled charging link of half-blocking all full bridge sub-modules in a charging process, and raising the voltages of half bridge sub-modules to reach the starting point of a half bridge sub-module based self-powered supply in an uncontrolled stage of the half bridge sub-modules, the starting point of the sub-module based self-powered supply is increased, and the design difficulty of the sub-module based self-powered supply is reduced. The present invention also discloses another charging method for a sub-module based hybrid converter. The above objective can also be achieved by setting a half-controlled charging link of bypassing all full bridge sub-modules in the charging process.
-
2.发明公开DIRECT-CURRENT TRANSMISSION PROTECTION APPARATUS, CURRENT CONVERTER, AND PROTECTION METHOD 审中-公开GLEICHSTROMÜBERTRAGUNGSSCHUTZVORRICHTUNG，STROMWANDLER UND SCHUTZVERFAHREN
公开(公告)号：EP3113311A1
公开(公告)日：2017-01-04
申请号：EP14883640.6
申请日：2014-05-04
发明人： CAO, Dongming , XIE, Yeyuan , SHAO, Zhenxia , LU, Yu , LI, Min , LU, Haibin , LI, Haiying
IPC分类号： H02H3/087
CPC分类号： H02H3/202 , H02H7/10 , H02H7/1227 , H02H7/1252 , H02H7/1257 , H02H7/127 , H02M1/32 , H02M7/2173 , H02M2007/4835 , H05K7/20927
摘要： The present invention discloses a direct-current power transmission protection device, including a resistor unit and a bidirectional circulation current switch unit, and the resistor unit and the bidirectional circulation current switch unit being connected in parallel to form the protection device, where at least one resistor is cascaded to form the resistor unit, and at least one bidirectional circulation current switch is cascaded to form the bidirectional circulation current switch unit. In addition, the present invention also provides a converter including the protection device, and at least one protection device is connected in series in each phase unit. The present invention provides the protection device, the converter and a protection method for flexible direct-current power transmission, which can rapidly and effectively suppress direct-current short circuit current and damp current oscillation, and not only can better protect equipment safety, but also can greatly shorten fault current attenuation time, thus shortening direct-current shutdown time and further decreasing economic loss and system destabilization risk caused by shutdown to the max. Moreover, the protection device is structurally simple and low in cost, and has good implementability and economic efficiency.
摘要翻译： 本发明公开了一种直流电力传输保护装置，包括电阻单元和双向循环电流开关单元，电阻单元和双向循环电流开关单元并联连接形成保护装置，其中至少一个 电阻串联形成电阻器单元，并且至少一个双向循环电流开关级联以形成双向循环电流开关单元。 此外，本发明还提供一种包括保护装置的转换器，并且至少一个保护装置在每个相位单元中串联连接。 本发明提供了保护装置，转换器和柔性直流输电的保护方法，可以快速有效地抑制直流短路电流和潮流振荡，不仅可以更好地保护设备的安全性，而且还可以 可以大大缩短故障电流衰减时间，从而缩短直流关断时间，进一步降低关闭到最大时的经济损失和系统不稳定风险。 此外，保护装置的结构简单，成本低，具有良好的可实施性和经济效益。
-
3.发明公开METHOD AND DEVICE FOR AUTOMATICALLY EXCHANGING SIGNALS BETWEEN EMBEDDED MULTI-CPU BOARDS 审中-公开方法和设备自动信号交换集成电路之间与几个中央处理单元
公开(公告)号：EP3062232A1
公开(公告)日：2016-08-31
申请号：EP14872661.5
申请日：2014-11-12
发明人： FENG, Yadong , ZHOU, Qiang , XU, Dongfang , YUAN, Tao , ZHAO, Tianen , LI, Guanghua , WEN, Jifeng , CHEN, Hongjun , LIU, Kejin
IPC分类号： G06F15/163
CPC分类号： G06F13/362 , G06F13/4282 , G06F15/17 , G06F17/50
摘要： The present invention discloses a signal name based method for automatic signal exchange between multiple embedded CPU boards, including the following steps: dividing CPU boards into master board and slave board, where during an initialization phase, each slave board sends signal registration information to the master board; after the master board collects the signal registration information of all the slave boards, reading, from a configuration file, an exchange relationship between an output signal and an input signal that is represented by a connection line between signal names, calculating and allocating a data bus address to which the output signal and the input signal are mapped, and sending memory addresses, data types, and bus addresses of signals to each slave board; after a slave board receives the memory addresses, the data types, and the bus addresses of the signals from the master board, saving same as output signal tables and input signal tables; and during an operation phase, writing, by a signal sender, a value of an output signal into a corresponding bus address according to the output signal tables, and reading, by a receiver, a value of an input signal from a corresponding bus address according to the input signal tables. With this method, signal exchange between CPU boards may be intuitively and simply adjusted, and the correctness of signal exchange is ensured. The present invention further provides an apparatus for implementing automatic signal exchange.
摘要翻译： 本发明盘松动多个嵌入式CPU板，其包括以下步骤之间的自动信号交换的信号名称为基础的方法：将CPU板到母板和从板，在初始化阶段，其中期间，每个从板发送信号的注册信息到主 板; 主电路板后收集所有从属板的信号的注册信息，在输出信号之间输入信号上交换关系阅读，从配置文件并通过信号名称之间的连接线表示，计算和分配的数据总线 哪个地址到输出信号和输入信号被映射，并发送存储器地址，数据类型，和信号到每个从板总线地址; 从板之后接收的存储器地址，数据类型，并且从所述主电路板的信号的总线地址，节省相同输出信号表和输入信号表; 和期间，在操作阶段，写入由信号发送器的输出信号的雅丁到输出信号表的值转换成相应的总线地址，并读出，由一接收器中，输入信号的从相应的总线地址gemäß的值 于输入信号的表。 利用该方法，CPU板之间的信号交换可以直观地和简单地调节，和信号交换的正确性得以保证。 本发明进一步提供到用于实现自动信号交换。
-
公开(公告)号：EP3125394B1
公开(公告)日：2019-08-07
申请号：EP15796511.2
申请日：2015-01-12
发明人： TIAN, Jie , LI, Haiying , WANG, Xinbao , DONG, Yunlong , SHEN, Quanrong , PAN, Lei , LIU, Chao , CHANG, Baoli
-
5.发明公开RELAY PROTECTION METHOD AND DEVICE AGAINST LC PARALLEL CIRCUIT DETUNING FAULTS 审中-公开VARRICHTUNG GEGEN PARALLELE的相关资料LC-SCHALTVERSTIMMMUNGSFEHLER
公开(公告)号：EP3139462A1
公开(公告)日：2017-03-08
申请号：EP15785909.1
申请日：2015-01-08
发明人： ZHANG, Qixue , XU, Baoli , ZHANG, Jie , LI, Huazhong , JI, Yaoyao , ZHONG, Shouping , WANG, Guang , CHEN, Jun , YAN, Wei
IPC分类号： H02H7/22
摘要： A relay protection method against LC parallel circuit detuning faults comprises the steps of: a relay protection device samples a current of a parallel LC, that is, a reactor and a capacitor, and samples a total current flowing through the whole LC; convert the current of the reactor into a current of an equivalent capacitor; calculate amplitudes of the current of the equivalent capacitor and a current of a realistic capacitor and calculate an amplitude of the total current flowing through the LC; calculate a current amplitude ratio of the equivalent capacitor to the realistic capacitor; and when the amplitude of the total current flowing through the LC is large enough, send an alarm signal or a trip after a setting time delay if the current ratio exceeds a preset upper and lower limit range. Also provided is a corresponding relay protection device. The relay protection method and device against LC parallel circuit detuning faults can improve stability of calculation results of a current ratio and raise sensitivity and rapidity of protection.
摘要翻译： 一种针对LC并联电路失谐故障的继电保护方法，包括以下步骤：继电保护装置对并联LC的电流，即电抗器和电容器进行采样，并对流过整个LC的总电流进行采样; 将电抗器的电流转换为等效电容器的电流; 计算等效电容器的电流的幅度和实际电容器的电流，并计算流过LC的总电流的幅度; 计算等效电容器与实际电容器的电流幅度比; 并且当流过LC的总电流的幅度足够大时，如果电流比超过预设的上下限范围，则在设定时间延迟之后发送报警信号或跳闸。 还提供了相应的继电保护装置。 针对LC并联电路失谐故障的继电保护方法和装置可以提高电流比的计算结果的稳定性，提高灵敏度和快速保护。
-
6.发明公开TRIPOLAR FLEXIBLE DIRECT-CURRENT POWER TRANSMISSION SYSTEM AND METHOD 审中-公开柔性胶片GLEICHSTROMÜBERTRAGUNGSSYSTEMUND VERFAHREN
公开(公告)号：EP3082212A1
公开(公告)日：2016-10-19
申请号：EP15796911.4
申请日：2015-01-22
发明人： HU, Ming , SHAO, Zhenxia , JIAO, Xinyan , TIAN, Jie , LU, Yu , SHEN, Gang
IPC分类号： H02J3/36
CPC分类号： H02J3/36 , H02J1/08 , H02M5/4585 , Y02E60/60
摘要： The present invention discloses a tripolar VSC-HVDC system and method, wherein a rectifier and an inverter consist of a three-phase six-bridge arms modular multilevel converter (MMC) respectively, and two converter valves are arranged on the DC side of the rectifier and inverter respectively, the midpoint of upper and lower converter valves of the rectifier and inverter are connected with a pole 3 DC line by a smoothing reactor, triggering of the upper and lower converter valves is controlled to change the DC voltage polarity of the pole 3 periodically, and tripolar DC transmission is realized by modulating current orders of the three poles. The technical solution provided by the invention can make full use of the three conductors for power transmission, has the characteristics of small occupied space of the converter station, low total conversion cost and high reliability, and it is particularly suitable for the implementation of conversion an AC line to a DC line for capacity increasing in large-sized urban power supply systems lacking in land resources.
摘要翻译： 本发明公开了一种三极VSC-HVDC系统和方法，其中整流器和逆变器分别由三相六桥臂模块化多电平转换器（MMC）组成，并且两个转换阀布置在整流器的直流侧 和逆变器，整流器和逆变器的上下转换阀的中点通过平滑电抗器与极点3直流线路连接，上下转换阀的触发被控制以改变极点3的直流电压极性 周期性地和三极直流传输通过调节三极的电流顺序来实现。 本发明提供的技术方案可充分利用三根导线进行输电，具有转炉站占用空间小，总转换成本低，可靠性高的特点，特别适用于转换 交流线路到缺乏土地资源的大型城市供电系统的直流线路容量增加。
-
公开(公告)号：EP3291401B1
公开(公告)日：2020-02-12
申请号：EP16785743.2
申请日：2016-02-19
发明人： CHEN, Jun , WANG, Kai , ZHONG, Shouping , WANG, Guang , ZHANG, Qixue , CHEN, Jiasheng , GUO, Zigang , LI, Huazhong , JI, Yaoyao
-
公开(公告)号：EP3407455A1
公开(公告)日：2018-11-28
申请号：EP17762406.1
申请日：2017-01-19
发明人： ZHAO, Wenqiang , WANG, Nannan , WANG, Yongping , LU, Jiang , BAI, Chuanjun , LU, Yu
IPC分类号： H02J3/36
摘要： A method and apparatus for controlling a hybrid direct-current (DC) transmission system. The method comprises: adjusting the total number of inserted sub-modules of a modular multi-level converter and the polarity of an output level of the inserted sub-modules in real time, according to a DC voltage of a rectifier station at other end; or adjusting the total number of inserted sub-modules of a modular multi-level converter and the polarity of an output level of the inserted sub-modules in real time, according to the magnitude of a DC current or DC power; or adjusting the total number of inserted sub-modules of a modular multi-level converter and the polarity of an output level of the inserted sub-modules in real time, according to both the magnitude of the DC current and the DC voltage of the rectifier station at the other end. The method can effectively control the DC voltage and the direct current of a hybrid DC transmission system, avoiding the power transmitting breakdown.
-
公开(公告)号：EP3376637A1
公开(公告)日：2018-09-19
申请号：EP17759247.4
申请日：2017-03-01
发明人： GAO, Shengfu , FANG, Taixun , WANG, Yongping , ZHANG, Xiang , PAN, Weiming , YUAN, Ming , ZHOU, Guqing
CPC分类号： G01R31/08 , H02H1/00 , H02J13/00 , H02M1/088 , H02M1/32 , H02M7/7575 , Y02E60/725 , Y04S10/20
摘要： Disclosed is a method for providing warning about a failure in a converter valve. The method comprises: within a predetermined time range, recording time information of status indication signals fed back by thyristor control units (TCU) of a converter valve, performing statistics and comparison of the pieces of time information using a bias statistics method, marking a thyristor level whose bias exceeds a preset value, and determining a probability of failure in the thyristor according to the marking result. Also disclosed is a system for providing warning about a failure in a converter valve. The system comprises a register array used to store bias data of thyristor levels of a converter valve and a high-speed processor used to process, using a bias statistics method, status indication signals fed back by TCUs. The solution of the present invention can identify a thyristor level with a relatively high probability of failure, achieve early warning, and provide a reference for device replacement, thereby reducing a probability of outage of a direct current system due to a failure of a thyristor level, and providing references for device performance optimization and circuit design optimization of a converter valve.
-
10.发明公开LINE POWER CONTROL METHOD AND SYSTEM OF UNIFIED POWER FLOW CONTROLLER 审中-公开LEITUNGSSTROMSTEUERUNGSVERFAHREN UND -SYSTEM EINES VEREINHEITLICHTEN STROMFLUSSREGLERS
公开(公告)号：EP3157122A1
公开(公告)日：2017-04-19
申请号：EP15819677.4
申请日：2015-01-22
发明人： TIAN, Jie , PAN, Lei , LIU, Chao , SHEN, Quanrong , LI, Haiying , LU, Yu , DONG, Yunlong
IPC分类号： H02J3/24
摘要： The present invention provides a line power control method and system for a unified power flow controller. The line power control method for a unified power flow controller includes outer loop line power control, inner loop valve side current control, and converter valve control. Series-side converter valve side current reference values I sedref and I seqref are calculated by means of the outer loop line power control according to line power instructions P ref and Q ref that are input, a measured line power U L , and measured line power P line and Q line ; a converter output voltage reference value U cref is calculated by means of the inner valve side current control according to the valve side current reference values that are output by means of the outer loop power control, a measured valve side current, and a measured valve side voltage; and finally, a converter outputs, according to the voltage reference value, a corresponding voltage to control line power to achieve a reference value. The control method is simple and practical, has high reliability, can rapidly and accurately control the line power, and can implement independent decoupling control of active power and reactive power of a line.
摘要翻译： 本发明提供了一种用于统一功率流量控制器的线路功率控制方法和系统。 统一动力流量控制器的线路功率控制方法包括外环线路功率控制，内循环阀侧电流控制和转换阀控制。 串联侧转换器阀侧电流参考值I sedref和I seqref通过根据输入的线路功率指令P ref和Q ref，测量线路功率UL和测量线路功率P的外部线路功率控制来计算 线和Q线; 根据通过外环功率控制输出的阀侧电流参考值，测量的阀侧电流和测量的阀侧，通过内阀侧电流控制来计算转换器输出电压基准值U cref 电压; 最后，一个转换器根据电压参考值输出一个相应的电压来控制线路功率，达到一个参考值。 控制方法简单实用，可靠性高，可以快速，准确地控制线路功率，并可实现线路有功功率和无功功率的独立去耦控制。
-
-
-
-
-
-
-
-
-
搜索结果
17 条记录 (耗时 0.011 秒)
