CN110850210A - A kind of direct current transmission converter valve valve base electronic device and system - Google Patents
A kind of direct current transmission converter valve valve base electronic device and system Download PDFInfo
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Abstract
本发明公开了一种直流输电换流阀阀基电子装置及系统，其中，该装置包括：至少一块触发监测板、至少一块主控板、至少一晶闸管触发监测板卡；触发监测板，包括：至少一光纤收发接口；光纤收发接口与晶闸管触发监测板卡相连接，用于与晶闸管触发监测板卡双向通信，传输信息；晶闸管触发监测板卡用于检测被测电路晶闸管级的电阻和/或电容参数信息、被测电路晶闸管级的关断角度信息以及换相失败状态信息；主控板用于记录并传输信息。通过实施本发明，可以通过获取电路元件的参数信息进而预防换相失败的发生，进而提高了换流阀的检修能力。
The invention discloses a valve base electronic device and system of a DC power transmission converter valve, wherein the device comprises: at least one trigger monitoring board, at least one main control board, at least one thyristor trigger monitoring board; the trigger monitoring board includes: At least one optical fiber transceiver interface; the optical fiber transceiver interface is connected to the thyristor trigger monitoring board, and is used for bidirectional communication with the thyristor trigger monitoring board to transmit information; the thyristor trigger monitoring board is used to detect the thyristor-level resistance of the circuit under test and/or Capacitance parameter information, turn-off angle information of the thyristor stage of the circuit under test, and commutation failure status information; the main control board is used to record and transmit information. By implementing the present invention, the occurrence of commutation failure can be prevented by acquiring parameter information of circuit elements, thereby improving the maintenance capability of the converter valve.
Description
技术领域technical field
本发明涉及特高压直流输电技术领域，具体涉及一种直流输电换流阀阀基电子装置及系统。The invention relates to the technical field of ultra-high voltage direct current power transmission, in particular to a direct current power transmission converter valve valve base electronic device and system.
背景技术Background technique
换流阀阀基电子设备(简称VBE)是换流阀的第一级监控设备，该设备负责接收极控系统指令，完成对换流阀的解/闭锁、触发，同时接收换流阀全部晶闸管级触发监测单元回报的状态、数据，并将换流阀状态反馈给极控系统。The valve base electronic equipment of the converter valve (VBE for short) is the first-level monitoring equipment of the converter valve. The state and data reported by the stage trigger monitoring unit are fed back to the pole control system.
在现有的相关高压直流输电技术领域内，以晶闸管换相为基础的换流阀阀基电子装置的功能，只能用以获取换流站控制保护系统指令，检测的这些内容仅是针对换流阀的解/闭锁、触发状态的改变，仅能满足高压直流输电过程中换流阀实际通信需求，无法满足换流阀内部电路元件的检测与预测需求，使得换流阀状态检修能力差，当换流阀出现换相失败时，难以及时进行预警和维护，严重影响传输质量。In the existing related high-voltage direct current transmission technology field, the function of the valve-based electronic device of the converter valve based on thyristor commutation can only be used to obtain the instructions of the control and protection system of the converter station. The unlocking/blocking of the converter valve and the change of the trigger state can only meet the actual communication requirements of the converter valve in the process of HVDC power transmission, but cannot meet the detection and prediction requirements of the internal circuit components of the converter valve, which makes the converter valve status maintenance capability poor. When the commutation valve fails, it is difficult to carry out early warning and maintenance in time, which seriously affects the transmission quality.
发明内容SUMMARY OF THE INVENTION
因此，本发明要解决的技术问题在于克服现有的直流输电换流阀阀基电子技术中的无法满足换流阀内部电路元件的检测与预测需求，使得换流阀状态检修能力差的缺陷，从而提供一种直流输电换流阀阀基电子装置及系统。Therefore, the technical problem to be solved by the present invention is to overcome the defect of the existing DC transmission valve-based electronic technology that cannot meet the detection and prediction requirements of the internal circuit components of the converter valve, resulting in poor state maintenance capability of the converter valve. Thereby, a valve-based electronic device and system for a DC transmission converter valve are provided.
根据第一方面，本发明实施例公开了一种直流输电换流阀阀基电子装置，包括：至少一触发监测板、至少一主控板、至少一晶闸管触发监测板卡；所述触发监测板，包括：至少一光纤收发接口；所述晶闸管触发监测板卡，用于检测被测电路晶闸管级的电阻和/或电容参数信息、所述被测电路晶闸管级的关断角度信息以及换相失败状态信息；所述光纤收发接口与所述晶闸管触发监测板卡相连接，用于与所述晶闸管触发监测板卡双向通信，传输所述晶闸管级的电阻和/或电容参数信息、所述被测电路晶闸管级的关断角度信息以及换相失败状态信息；所述主控板用于记录并传输所述换流阀晶闸管触发监测板检测到的所述晶闸管级的电阻和/或电容参数信息、所述被测电路晶闸管级的关断角度信息以及换相失败状态信息。According to a first aspect, an embodiment of the present invention discloses a valve-based electronic device for a DC power transmission converter valve, comprising: at least one trigger monitoring board, at least one main control board, and at least one thyristor trigger monitoring board; the trigger monitoring board , including: at least one optical fiber transceiver interface; the thyristor triggering monitoring board is used to detect the resistance and/or capacitance parameter information of the thyristor stage of the circuit under test, the turn-off angle information of the thyristor stage of the circuit under test, and the failure of commutation Status information; the optical fiber transceiver interface is connected to the thyristor trigger monitoring board for bidirectional communication with the thyristor trigger monitoring board, and transmits the resistance and/or capacitance parameter information of the thyristor, the measured Turn-off angle information and commutation failure status information of the circuit thyristor stage; the main control board is used to record and transmit the resistance and/or capacitance parameter information of the thyristor stage detected by the converter valve thyristor trigger monitoring board, Turn-off angle information and commutation failure status information of the thyristor stage of the circuit under test.
结合第一方面，在第一方面第一实施方式中，至少一块电源板，所述电源板用于为所述直流输电换流阀阀基电子装置供电。With reference to the first aspect, in the first embodiment of the first aspect, at least one power supply board is used to supply power to the valve-based electronic device of the DC power converter valve.
结合第一方面第一实施方式，在第一方面第二实施方式中，所述电源板与所述触发监测板连接，所述触发监测板与所述主控板连接。With reference to the first embodiment of the first aspect, in the second embodiment of the first aspect, the power supply board is connected to the trigger monitoring board, and the trigger monitoring board is connected to the main control board.
结合第一方面，在第一方面第三实施方式中，所述主控板还用于通过光纤与外部数字录波仪器设备、所述的直流输电换流阀阀基电子装置的上位机、所述换流站控制保护系统相连接，进行通信。In combination with the first aspect, in the third embodiment of the first aspect, the main control board is also used to communicate with external digital wave recording equipment, the host computer of the DC power converter valve base electronic device, The converter station control and protection system is connected to communicate.
结合第一方面第三实施方式，在第一方面第四实施方式中，所述主控板还用于将所述晶闸管级的电阻和/或电容参数信息、所述换相失败状态信息传输至所述上位机，以及将所述晶闸管级的电阻和/或电容参数信息、所述被测电路晶闸管级的关断角度信息以及换相失败状态信息传输至所述换流站控制保护系统。With reference to the third embodiment of the first aspect, in the fourth embodiment of the first aspect, the main control board is further configured to transmit the resistance and/or capacitance parameter information of the thyristor stage and the commutation failure status information to the The host computer, and transmits the resistance and/or capacitance parameter information of the thyristor stage, the turn-off angle information of the thyristor stage of the circuit under test, and the commutation failure status information to the converter station control and protection system.
结合第一方面第四实施方式，在第一方面第五实施方式中，所述主控板还用于：记录所述直流输电换流阀阀基电子装置的状态信息，并将所述状态信传输至换流站控制保护系统；所述状态信息包括电源板的故障信息、所述晶闸管触发监测板卡的丢失信息、所述光纤的通信异常/断线信息。With reference to the fourth embodiment of the first aspect, in the fifth embodiment of the first aspect, the main control board is further configured to: record the status information of the valve-based electronic device of the DC power transmission converter valve, and send the status information to the It is transmitted to the control and protection system of the converter station; the state information includes the fault information of the power board, the loss information of the thyristor trigger monitoring board, and the communication abnormality/disconnection information of the optical fiber.
结合第一方面，在第一方面第六实施方式中，所述触发监测板的数量范围1-10块，所述主控板的数量范围是1-2块。With reference to the first aspect, in the sixth embodiment of the first aspect, the number of the trigger monitoring boards ranges from 1 to 10, and the number of the main control boards ranges from 1 to 2.
结合第一方面第一实施方式，在第一方面第七实施方式中，所述电源板的数量范围是1-2块。With reference to the first embodiment of the first aspect, in the seventh embodiment of the first aspect, the number of the power supply boards ranges from 1 to 2.
根据第二方面，本发明实施例公开了一种直流输电换流阀阀基电子系统，包括：至少一台触发监测机箱，所述触发监测机箱内设置有至少一如第一方面任一实施方式中所述的直流输电换流阀阀基电子装置。According to a second aspect, an embodiment of the present invention discloses a valve-based electronic system for a DC power transmission converter valve, including: at least one trigger monitoring chassis, wherein at least one trigger monitoring chassis is provided with at least one of the implementations of the first aspect The valve-based electronic device for the DC transmission converter valve described in .
本发明技术方案，具有如下优点：The technical scheme of the present invention has the following advantages:
本发明所提供的一种直流输电换流阀阀基电子装置及系统，其中，该装置包括：至少一块触发监测板、至少一块主控板；触发监测板包括：至少一晶闸管触发监测板卡及至少一光纤收发接口；上述装置通过晶闸管触发监测板卡检测被测电路晶闸管级的电阻和/或电容参数信息、被测电路晶闸管级的关断角度信息以及换相失败状态信息；光纤收发接口与晶闸管触发监测板卡相连接，传输晶闸管级的电阻和/或电容参数信息、被测电路晶闸管级的关断角度信息以及换相失败状态信息；主控板用于记录并传输换流阀晶闸管触发监测板检测到的晶闸管级的电阻和/或电容参数信息、被测电路晶闸管级的关断角度信息以及换相失败状态信息。根据监测到的电路元件的参数信息及换流阀全部晶闸管级的信息可以满足对换流阀晶闸管级以及电路元件的检测与预测的需求，提高了换流阀的检修能力，当换流阀出现换相失败时，可以及时进行预警和维护，提升了传输质量。The present invention provides a valve base electronic device and system for a DC power transmission converter valve, wherein the device includes: at least one trigger monitoring board and at least one main control board; the trigger monitoring board includes: at least one thyristor trigger monitoring board and At least one optical fiber transceiver interface; the above-mentioned device triggers the monitoring board through the thyristor to detect the resistance and/or capacitance parameter information of the thyristor stage of the circuit under test, the turn-off angle information of the thyristor stage of the circuit under test, and the commutation failure state information; The thyristor trigger monitoring board is connected to transmit the resistance and/or capacitance parameter information of the thyristor stage, the turn-off angle information of the thyristor stage of the circuit under test, and the commutation failure status information; the main control board is used to record and transmit the thyristor trigger of the converter valve. The resistance and/or capacitance parameter information of the thyristor stage detected by the monitoring board, the turn-off angle information of the thyristor stage of the circuit under test, and the commutation failure status information. According to the parameter information of the monitored circuit components and the information of all thyristor stages of the converter valve, the detection and prediction requirements for the thyristor stages of the converter valve and circuit components can be met, and the maintenance capability of the converter valve is improved. When the commutation fails, early warning and maintenance can be carried out in time, which improves the transmission quality.
附图说明Description of drawings
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.
图1为本发明实施例1中直流输电换流阀阀基电子装置的一个具体示例的结构框图；1 is a structural block diagram of a specific example of a valve-based electronic device for a DC power transmission converter valve in Embodiment 1 of the present invention;
图2为本发明实施例1中直流输电换流阀阀基电子装置中的触发监测板的一个具体示例的结构框图；2 is a structural block diagram of a specific example of a trigger monitoring board in a valve-based electronic device of a DC power converter valve in Embodiment 1 of the present invention;
图3为本发明实施例1中直流输电换流阀阀基电子装置中的换流阀晶闸管触发监测板卡的连接关系的原理框图；Fig. 3 is the principle block diagram of the connection relationship of the converter valve thyristor trigger monitoring board in the DC transmission converter valve valve base electronic device in the first embodiment of the present invention;
图4为本发明实施例1中直流输电换流阀阀基电子装置的另一个具体示例的结构框图；4 is a structural block diagram of another specific example of a valve-based electronic device for a DC power transmission converter valve in Embodiment 1 of the present invention;
图5为本发明实施例1中直流输电换流阀阀基电子装置中的主控板连接关系的一个具体示例的原理框图；5 is a schematic block diagram of a specific example of the connection relationship of the main control board in the valve base electronic device of the DC power transmission converter valve in Embodiment 1 of the present invention;
图6为本发明实施例1中触发监测机箱的一个具体示例的结构框图；6 is a structural block diagram of a specific example of a trigger monitoring chassis in Embodiment 1 of the present invention;
图7为本发明实施例2中直流输电换流阀阀基电子系统的一个具体示例的结构框图。FIG. 7 is a structural block diagram of a specific example of a valve-based electronic system of a DC power transmission converter valve in
具体实施方式Detailed ways
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，还可以是两个元件内部的连通，可以是无线连接，也可以是有线连接。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two components, which can be a wireless connection or a wired connection connect. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.
此外，下面所描述的本发明不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
实施例1Example 1
本发明实施例提供一种直流输电换流阀阀基电子装置，应用于高压直流输电工程中对换流阀进行实时监控的具体应用场景中，本实施例中的直流输电换流阀阀基电子装置，如图1所示，包括：An embodiment of the present invention provides a valve-based electronic device for a DC power transmission converter valve, which is applied to a specific application scenario of real-time monitoring of a converter valve in a HVDC power transmission project. The valve-based electronic device for a DC power transmission converter valve in this embodiment The device, as shown in Figure 1, includes:
触发监测板01、主控板02、晶闸管触发监测板卡03，其中，触发监测板01与主控板02连接，触发监测板01与晶闸管触发监测板卡03连接。The trigger monitoring board 01, the main control board 02, and the thyristor trigger monitoring board 03, wherein the trigger monitoring board 01 is connected with the main control board 02, and the trigger monitoring board 01 is connected with the thyristor trigger monitoring board 03.
具体地，如图2所示，该触发监测板01包括：至少一光纤收发接口(Small Form-factor Pluggable，SFP)，上述光纤收发接口与晶闸管触发监测板卡03(ThyristorTrigger Monitoring,TTM)相连接，用于与晶闸管触发监测板卡03双向通信，传输晶闸管级的电阻和/或电容参数信息、被测电路晶闸管级的关断角度信息以及换相失败状态信息；具体地，本实施例中的触发监测板01上至少有一个光纤收发接口，通过光纤传输方式与设置在触发监测板01外部的晶闸管触发监测板卡03进行双向通信，例如，TTM可以将检测到的信息通过光纤收发接口经由光纤传输至触发监测板01，触发监测板01也会将触发监测板01本身所获得的信息通过光纤收发接口经由光纤传输至TTM。Specifically, as shown in FIG. 2 , the trigger monitoring board 01 includes: at least one optical fiber transceiver interface (Small Form-factor Pluggable, SFP), and the optical fiber transceiver interface is connected to the thyristor trigger monitoring board 03 (ThyristorTrigger Monitoring, TTM) , is used for bidirectional communication with the thyristor trigger monitoring board 03, and transmits the resistance and/or capacitance parameter information of the thyristor stage, the turn-off angle information of the thyristor stage of the circuit under test, and the commutation failure status information; There is at least one optical fiber transceiver interface on the trigger monitoring board 01, and two-way communication is performed with the thyristor trigger monitoring board 03 set outside the trigger monitoring board 01 through optical fiber transmission. The information is transmitted to the trigger monitoring board 01, and the trigger monitoring board 01 will also transmit the information obtained by the trigger monitoring board 01 itself to the TTM via the optical fiber transceiver interface.
触发监测板01上有若干个光纤收发接口，在此我们虽然只提到了至少一光纤收发接口，但是上述触发监测板01上最多可以有十二对光纤收发接口，用于分别与十二块TTM相连接，继而进行双向通信，具体数量可以根据需要进行调整，本发明并不以此为限。There are several optical fiber transceiver interfaces on the trigger monitoring board 01. Although we only mention at least one optical fiber transceiver interface, the above trigger monitoring board 01 can have up to twelve pairs of optical fiber transceiver interfaces, which are used to communicate with twelve TTMs respectively. Then, the two-way communication is performed, and the specific number can be adjusted according to needs, and the present invention is not limited to this.
触发监测板01可以通过TTM监测被测电路元件的参数信息。另外的，还可以监测TTM的通信状态信息，具体地，通信状态信息可以是正向取能回报状态信息、电流断续触发回报状态信息、单脉冲回报状态信息、正向过压保护回报状态信息、反向恢复保护回报状态信息、换相失败回报状态信息、第一电阻状态信息、第二电阻状态信息、第三电阻状态信息、第一电容状态信息、二电容状态信息、第三电容状态信息。The trigger monitoring board 01 can monitor the parameter information of the circuit element under test through TTM. In addition, the communication status information of the TTM can also be monitored. Specifically, the communication status information can be forward energy fetching report status information, current discontinuous triggering report status information, single pulse report status information, forward overvoltage protection report status information, Reverse recovery protection report state information, commutation failure report state information, first resistance state information, second resistance state information, third resistance state information, first capacitance state information, second capacitance state information, and third capacitance state information.
晶闸管触发监测板卡03(Thyristor Trigger Monitoring,TTM)，如图3所示，用于检测包含晶闸管的被测电路中的电阻和/或电容参数信息，被测电路晶闸管级的关断角度信息，以及换相失败状态信息；在本实施例中，被测电路中的电阻和/或电容参数信息可以包括：第一电容参数、第二电容参数、第三电容参数、第一电阻参数、第二电阻参数、第三电阻参数、第四电阻参数。The thyristor trigger monitoring board 03 (Thyristor Trigger Monitoring, TTM), as shown in Figure 3, is used to detect the resistance and/or capacitance parameter information in the circuit under test containing the thyristor, and the turn-off angle information of the thyristor stage of the circuit under test, and commutation failure status information; in this embodiment, the resistance and/or capacitance parameter information in the circuit under test may include: first capacitance parameter, second capacitance parameter, third capacitance parameter, first resistance parameter, second capacitance parameter Resistance parameter, third resistance parameter, fourth resistance parameter.
具体地，被测电路中电路元件包括：晶闸管级TTM、第一电容Cd1、第二电容Cd2、第三电容Cd3、第一电阻Rd1、第二电阻Rd2、第三电阻Rd3、第四电阻R4。例如，上述电路元件的连接方式可以是，TTM上设有若干个接口，第一接口与第一电阻Rd1的第一端连接，第二接口与晶闸管的第一端、第四电阻R4的第一端连接，第三接口与第二电阻Rd2的第一端连接，第四接口与第三电阻Rd3的第一端、第四电阻R4的第二端连接，第五接口与晶闸管的第二端连接，第一电容Cd1的第一端与第一电阻Rd1的第二端连接，第二电容Cd2的第一端与第二电阻Rd2的第二端连接，第三电容Cd3的第一端与第一电容Cd1的第二端、第二电容的Cd2第二端连接，第三电容Cd3的第二端与晶闸管的第三端、第三电阻Rd3的第二端连接。Specifically, the circuit elements in the circuit under test include: a thyristor stage TTM, a first capacitor Cd1, a second capacitor Cd2, a third capacitor Cd3, a first resistor Rd1, a second resistor Rd2, a third resistor Rd3, and a fourth resistor R4. For example, the connection mode of the above circuit elements may be that there are several interfaces on the TTM, the first interface is connected to the first end of the first resistor Rd1, the second interface is connected to the first end of the thyristor, and the first end of the fourth resistor R4 The third interface is connected to the first end of the second resistor Rd2, the fourth interface is connected to the first end of the third resistor Rd3 and the second end of the fourth resistor R4, and the fifth interface is connected to the second end of the thyristor. , the first end of the first capacitor Cd1 is connected to the second end of the first resistor Rd1, the first end of the second capacitor Cd2 is connected to the second end of the second resistor Rd2, and the first end of the third capacitor Cd3 is connected to the first The second end of the capacitor Cd1 is connected to the second end of the second capacitor Cd2, and the second end of the third capacitor Cd3 is connected to the third end of the thyristor and the second end of the third resistor Rd3.
主控板02，用于记录并传输换流阀晶闸管触发监测板01检测到的晶闸管级的电阻和/或电容参数信息、被测电路晶闸管级的关断角度信息以及换相失败状态信息。在本实施例中，主控板02与触发监测板01连接，接收触发监测板01通过TTM检测到的上述参数信息以及状态信息。具体地，如图5所示，主控板02还可以通过以太网与外部数字录波仪器设备连接，记录TTM通过触发监测板01上传换相失败的状态信息，如果发生换相失败，也可以实时记录发生换相失败发生前后的TTM检测到的上述晶闸管电路的信息，以及监测过程中换流站控制保护系统的控制数据信息；The main control board 02 is used to record and transmit the resistance and/or capacitance parameter information of the thyristor stage detected by the converter valve thyristor trigger monitoring board 01, the turn-off angle information of the thyristor stage of the circuit under test, and the commutation failure status information. In this embodiment, the main control board 02 is connected to the trigger monitoring board 01, and receives the above-mentioned parameter information and status information detected by the trigger monitoring board 01 through TTM. Specifically, as shown in FIG. 5 , the main control board 02 can also be connected to an external digital wave recorder device through Ethernet, and record the status information of the commutation failure uploaded by the TTM by triggering the monitoring board 01. If the commutation failure occurs, it can also be Real-time recording of the above-mentioned thyristor circuit information detected by TTM before and after the commutation failure occurs, and the control data information of the control and protection system of the converter station during the monitoring process;
但是，由于在直流输电换流阀系统中录波设备需要记录的数据信息数量较大，为了防止传输堵塞，优选地，主控板02还可以通过过程现场总线(Process Field Bus，PROFIBUS)与上述的直流输电换流阀阀基电子装置的上位机(Supervisory Control AndData Acquisition，SCADA)相连接，具体地，PROFIBUS是一种国际化、开放式、不依赖于设备生产商的现场总线标准，也是一种用于工厂自动化车间级监控和现场设备层数据通信与控制的现场总线技术。上述主控板02通过PROFIBUS传输SOE报文至SCADA，所送的SOE报文内容包括晶闸管的被测电路中的电阻和/或电容参数信息，被测电路晶闸管级的关断角度信息，以及换相失败状态信息，还包括传输传统阀基电子设备所记录的报文内容。However, due to the large amount of data information that needs to be recorded by the wave recording device in the DC transmission converter valve system, in order to prevent transmission blockage, preferably, the main control board 02 can also communicate with the above-mentioned process field bus (Process Field Bus, PROFIBUS). It is connected to the host computer (Supervisory Control And Data Acquisition, SCADA) of the valve-based electronic device of the DC transmission converter valve. Specifically, PROFIBUS is an international, open, field bus standard that does not depend on equipment manufacturers. A fieldbus technology for factory automation workshop level monitoring and field device level data communication and control. The above-mentioned main control board 02 transmits the SOE message to SCADA through PROFIBUS, and the content of the sent SOE message includes the resistance and/or capacitance parameter information in the circuit under test of the thyristor, the turn-off angle information of the thyristor stage of the circuit under test, and The phase failure status information also includes the content of the message recorded by the traditional valve-based electronic equipment.
上述的主控板02还用于，记录直流输电换流阀阀基电子装置的状态信息，并将状态信传输至换流站控制保护系统；上述状态信息包括电源板04的故障信息、晶闸管触发监测板卡03的丢失信息、光纤的通信异常/断线信息。The above-mentioned main control board 02 is also used to record the status information of the valve base electronic device of the DC power transmission converter valve, and transmit the status information to the control and protection system of the converter station; the above-mentioned status information includes the fault information of the power board 04, the thyristor triggering Monitor the loss information of the board 03 and the communication abnormality/disconnection information of the optical fiber.
本发明实施例提供的一种直流输电换流阀阀基电子装置，如图4所示，还包括：A valve-based electronic device for a DC power transmission converter valve provided by an embodiment of the present invention, as shown in FIG. 4 , further includes:
电源板04，用于为直流输电换流阀阀基电子装置供电；在本实施例中，电源板04与触发监测板01连接，触发监测板01与主控板02连接，电源板04为上述的直流输电换流阀阀基电子装置供电。The power board 04 is used to supply power to the valve base electronic device of the DC transmission converter valve; in this embodiment, the power board 04 is connected to the trigger monitoring board 01, the trigger monitoring board 01 is connected to the main control board 02, and the power board 04 is the above The DC power converter valve base electronics are powered.
在本实施例中，如图6所示，触发监测板01的数量范围是1-10块，根据监测的换流阀中晶闸管级的数量的不同，可以选用不同数量的触发监测板01，具体地，每块触发监测板01的光纤收发接口的数量范围是1-12，每一光纤收发接口可触发以及监测对应的一个晶闸管级，根据监测的换流阀中晶闸管级的数量的不同，可以在每块触发监测板01调用不同数量的光纤收发接口，进而可以选用不同数量的触发监测板01来监测换流阀中的晶闸管级，例如，系统预估监测120个晶闸管级，此时需选用10块触发监测板01，并调用触发监测板01上全部的光纤收发接口，进行监测以及触发指令的完成。In this embodiment, as shown in FIG. 6 , the number of trigger monitoring boards 01 ranges from 1 to 10. According to the difference in the number of thyristor stages in the monitored converter valve, different numbers of trigger monitoring boards 01 can be selected. Ground, the number of optical fiber transceiver interfaces of each trigger monitoring board 01 ranges from 1 to 12, and each optical fiber transceiver interface can trigger and monitor a corresponding thyristor stage. Each trigger monitoring board 01 calls a different number of optical fiber transceiver interfaces, and then a different number of trigger monitoring boards 01 can be used to monitor the thyristor stages in the converter valve. For example, the system is estimated to monitor 120 thyristor stages. 10 trigger monitoring boards 01, and call all the optical fiber transceiver interfaces on the trigger monitoring board 01 to monitor and complete the trigger instruction.
基于相同的理由，在此不再赘述，主控板02的数量范围是1-2块；电源板04的数量范围是1-2块。Based on the same reason, which will not be repeated here, the number of main control boards 02 ranges from 1 to 2; the number of power boards 04 ranges from 1 to 2.
本发明实施例所提供的直流输电换流阀阀基电子装置，通过触发监测板01、主控板02、晶闸管触发监测板卡03、电源板04相连接，记录和传输包括晶闸管的被测电路中的电阻和/或电容参数信息，被测电路晶闸管级的关断角度信息，以及换相失败状态信息，通过检测到的电路中晶闸管、电路元件的信息，继而可以满足对换流阀内部电路元件的检测与预测需求，使得提高了换流阀状态检修能力，因此，当换流阀出现换相失败时，可以及时进行预警和维护，提高了传输质量。The valve base electronic device of the DC transmission converter valve provided by the embodiment of the present invention is connected by the trigger monitoring board 01, the main control board 02, the thyristor trigger monitoring board 03, and the power board 04, and records and transmits the circuit under test including the thyristor. The resistance and/or capacitance parameter information in the circuit under test, the turn-off angle information of the thyristor stage of the circuit under test, and the commutation failure status information, through the detected information of the thyristor and circuit components in the circuit, the internal circuit of the commutator valve can then be satisfied. The detection and forecasting requirements of components improve the state maintenance capability of the converter valve. Therefore, when the converter valve fails commutation, early warning and maintenance can be carried out in time, which improves the transmission quality.
实施例2Example 2
本发明实施例提供一种直流输电换流阀阀基电子系统，应用于高压直流输电工程中对换流阀进行实时监控的具体应用场景中，本实施例中的直流输电换流阀阀基电子系统71，如图7所示，包括：An embodiment of the present invention provides a valve-based electronic system for a DC power transmission converter valve, which is applied to a specific application scenario of real-time monitoring of a converter valve in a HVDC power transmission project. The valve-based electronic system for a DC power transmission converter valve in this embodiment System 71, as shown in Figure 7, includes:
第一触发监测机箱711，第二触发监测机箱712；The first trigger monitoring chassis 711, the second trigger monitoring chassis 712;
上述触发监测机箱内设置有至少一如上述中任一实施例中的直流输电换流阀阀基电子装置。具体地，根据监测不同种类的换流阀，可选用不同数量的触发监测机箱，例如，当监测控制12脉动换流器时，由于此换流器内有12个换流阀，所以需要6台的触发监测机箱组成，此时，上述的触发监测机箱如图6所示。The trigger monitoring chassis is provided with at least one valve-based electronic device for the DC power converter valve as in any of the above embodiments. Specifically, according to monitoring different types of converter valves, different numbers of trigger monitoring chassis can be selected. For example, when monitoring and controlling a 12-pulse converter, since there are 12 converter valves in this converter, 6 sets are required. The trigger monitoring chassis is composed of, at this time, the above trigger monitoring chassis is shown in Figure 6.
本发明实施例所提供的直流输电换流阀阀基电子系统，通过不同数量的触发监测机箱的连接，构成了换流阀的高一级监控设备，不仅可接收换流站控制保护系统下发的指令信息，更重要的是，还可通过电源板04、触发监测板01、主控板02、晶闸管触发监测板卡03相连接，记录和传输包括晶闸管的被测电路中的电阻和/或电容参数信息，被测电路晶闸管级的关断角度信息，以及换相失败状态信息，通过检测到的电路中晶闸管、电路元件的信息，具备了对提供晶闸管关断角度监测、换相失败预测的功能，也没有换流阀电阻、电容等原件的监测能力，继而实现了对换相失败故障发生的防御能力，使得提高了换流阀状态检修能力，提高了传输质量。The valve-based electronic system of the DC power transmission converter valve provided by the embodiment of the present invention constitutes a higher-level monitoring device for the converter valve through the connection of different numbers of trigger monitoring boxes, which can not only receive the control and protection system of the converter station, more importantly, it can also be connected through the power supply board 04, the trigger monitoring board 01, the main control board 02, and the thyristor trigger monitoring board 03 to record and transmit the resistance in the circuit under test including the thyristor and/or Capacitance parameter information, turn-off angle information of the thyristor stage of the circuit under test, and commutation failure status information. Through the detected information of thyristors and circuit components in the circuit, it has the ability to provide thyristor turn-off angle monitoring and commutation failure prediction. It does not have the monitoring ability of the original components such as converter valve resistance and capacitance, and then realizes the defense ability against the occurrence of commutation failure failure, which improves the state maintenance ability of the converter valve and improves the transmission quality.
显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.
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| CN111812423A (en) * | 2020-03-25 | 2020-10-23 | 中国南方电网有限责任公司超高压输电公司广州局 | A system and method for predicting and identifying commutation failure of a HVDC converter valve |
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| CN111398765B (en) * | 2020-04-01 | 2022-05-17 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Thyristor triggering abnormity protection method for direct current transmission system |
| CN111812429A (en) * | 2020-05-29 | 2020-10-23 | 中电普瑞电力工程有限公司 | A simulated return test case for valve-based electronic equipment that resists commutation failure |
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