CN113824096B - DC transmission line protection system reset method, device, equipment and storage medium - Google Patents
DC transmission line protection system reset method, device, equipment and storage medium Download PDFInfo
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- 230000008014 freezing Effects 0.000 claims description 7
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for DC systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
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Abstract
Description
技术领域Technical field
本申请涉及高压直流输电技术领域，特别是涉及一种直流输电线路保护系统复归方法、装置、设备及存储介质。The present application relates to the technical field of high-voltage direct current transmission, and in particular to a method, device, equipment and storage medium for restoring a direct current transmission line protection system.
背景技术Background technique
在高压直流输电过程中，直流输电线路保护系统可以在高压直流输电系统出现故障时，对高压直流输电系统输出重启动的保护动作信号。高压直流输电系统在接收到该重启动的保护动作信号之后，执行重启动的保护动作，并需要对直流输电线路保护系统中的计数器、保护动作信号的初始值等进行复归操作。During the high-voltage direct current transmission process, the direct current transmission line protection system can output a restart protection action signal to the high-voltage direct current transmission system when a fault occurs in the high-voltage direct current transmission system. After receiving the restart protection action signal, the high-voltage DC transmission system executes the restart protection action and needs to perform reset operations on the counters in the DC transmission line protection system and the initial values of the protection action signals.
传统中，通常可以采用自动复归方式对直流输电线路保护系统进行复归操作。但是，传统的自动复归方式，在触发高压直流输电系统中换流器工作的直流触发脉冲信号消失时，无法采用自动复归方式进行复归操作。因而，传统的直流输电线路保护系统存在可靠性差的问题。Traditionally, the automatic reset method can usually be used to reset the DC transmission line protection system. However, the traditional automatic reset method cannot be used to perform the reset operation when the DC trigger pulse signal that triggers the operation of the converter in the high-voltage DC transmission system disappears. Therefore, the traditional DC transmission line protection system has the problem of poor reliability.
发明内容Contents of the invention
基于此，本申请实施例提供了一种直流输电线路保护系统复归方法、装置、设备及存储介质，可以提高直流输电线路保护系统的可靠性。Based on this, embodiments of the present application provide a DC transmission line protection system reset method, device, equipment and storage medium, which can improve the reliability of the DC transmission line protection system.
第一方面，提供了一种直流输电线路保护系统复归方法，该方法包括：In the first aspect, a DC transmission line protection system reset method is provided, which method includes:
通过直流输电线路保护系统从高压直流输电系统中获取电气测量数据，根据电气测量数据生成保护动作信号；保护动作信号包括第一保护动作信号；第一保护动作信号用于指示高压直流输电系统进行重启；若直流输电线路保护系统接收到用户输入的预设复归信号，且保护动作信号为第一保护动作信号，则根据第一保护动作信号及预设复归信号生成清零信号；根据清零信号对直流输电线路保护系统进行复归。The electrical measurement data is obtained from the high-voltage DC transmission system through the DC transmission line protection system, and a protection action signal is generated based on the electrical measurement data; the protection action signal includes a first protection action signal; the first protection action signal is used to instruct the high-voltage DC transmission system to restart ; If the DC transmission line protection system receives the preset reset signal input by the user, and the protection action signal is the first protection action signal, a clearing signal is generated based on the first protection action signal and the preset reset signal; according to the clearing signal The DC transmission line protection system is reset.
在其中一个实施例中，上述方法还包括：In one embodiment, the above method further includes:
若直流输电线路保护系统未从高压直流输电系统中获取到触发脉冲信号，则生成清零信号。If the DC transmission line protection system does not obtain the trigger pulse signal from the high-voltage DC transmission system, a clear signal is generated.
在其中一个实施例中，保护动作信号还包括第二保护动作信号；根据电气测量数据生成保护动作信号，包括：In one embodiment, the protection action signal also includes a second protection action signal; generating the protection action signal according to the electrical measurement data includes:
判断电气测量数据是否为异常电气测量数据；若电气测量数据为异常电气测量数据，则根据电气测量数据生成保护冻结信号；基于保护冻结信号，将直流输电线路保护系统的当前保护动作信号进行冻结，并将处于冻结状态的当前保护动作信号确定为保护动作信号；当前保护动作信号为第一保护动作信号或第二保护动作信号。Determine whether the electrical measurement data is abnormal electrical measurement data; if the electrical measurement data is abnormal electrical measurement data, generate a protection freeze signal based on the electrical measurement data; based on the protection freeze signal, freeze the current protection action signal of the DC transmission line protection system. And the current protection action signal in the frozen state is determined as the protection action signal; the current protection action signal is the first protection action signal or the second protection action signal.
在其中一个实施例中，根据电气测量数据生成保护动作信号，还包括：In one embodiment, generating a protection action signal according to electrical measurement data further includes:
若电气测量数据不是异常电气测量数据，则根据直流输电线路保护系统中计数器的当前值生成第一保护动作信号。If the electrical measurement data is not abnormal electrical measurement data, the first protection action signal is generated according to the current value of the counter in the DC transmission line protection system.
在其中一个实施例中，根据直流输电线路保护系统中计数器的当前值生成第一保护动作信号，包括：In one embodiment, generating a first protection action signal based on the current value of a counter in the DC transmission line protection system includes:
判断电气测量数据是否满足预设的保护条件；若满足预设的保护条件，则控制直流输电线路保护系统中的计数器按照预设累加规则进行累加计数；在计数器累加至第一预设保护动作延时定值时，生成第一保护动作信号。Determine whether the electrical measurement data meets the preset protection conditions; if the preset protection conditions are met, control the counter in the DC transmission line protection system to accumulate and count according to the preset accumulation rules; when the counter accumulates to the first preset protection action delay When the value is set, the first protection action signal is generated.
在其中一个实施例中，上述方法还包括：In one embodiment, the above method further includes:
若不满足预设的保护条件，则控制直流输电线路保护系统中的计数器按照预设累减规则进行累减计数；在计数器累减至第二预设保护动作延时定值时，对直流输电线路保护系统进行复归。If the preset protection condition is not met, the counter in the DC transmission line protection system is controlled to count down according to the preset cumulative reduction rule; when the counter counts down to the second preset protection action delay value, the DC transmission line protection system is reset.
在其中一个实施例中，根据清零信号对直流输电线路保护系统进行复归，包括：In one embodiment, resetting the DC transmission line protection system according to the reset signal includes:
根据清零信号，对直流输电线路保护系统的保护动作信号及计数器的当前值进行复归。According to the clearing signal, the protection action signal of the DC transmission line protection system and the current value of the counter are reset.
第二方面，提供了一种直流输电线路保护系统复归装置，该装置包括：In a second aspect, a DC transmission line protection system reset device is provided, which device includes:
获取模块，用于通过直流输电线路保护系统从高压直流输电系统中获取电气测量数据，根据电气测量数据生成保护动作信号；保护动作信号包括第一保护动作信号；第一保护动作信号用于指示高压直流输电系统进行重启；An acquisition module is used to obtain electrical measurement data from the high-voltage DC transmission system through the DC transmission line protection system, and generate a protection action signal based on the electrical measurement data; the protection action signal includes a first protection action signal; the first protection action signal is used to indicate high voltage The DC transmission system is restarted;
第一生成模块，用于若直流输电线路保护系统接收到用户输入的预设复归信号，且保护动作信号为第一保护动作信号，则根据第一保护动作信号及预设复归信号生成清零信号；A first generating module, configured to generate a reset signal according to the first protection action signal and the preset reset signal if the DC transmission line protection system receives a preset reset signal input by a user and the protection action signal is a first protection action signal;
复归模块，用于根据清零信号对直流输电线路保护系统进行复归。The reset module is used to reset the DC transmission line protection system according to the clear signal.
第三方面，提供了一种计算机设备，包括存储器和处理器，存储器存储有计算机程序，计算机程序被处理器执行时实现上述第一方面任一实施例中的方法步骤。In a third aspect, a computer device is provided, including a memory and a processor. The memory stores a computer program. When the computer program is executed by the processor, the method steps in any embodiment of the first aspect are implemented.
第四方面，提供了一种计算机可读存储介质，其上存储有计算机程序，计算机程序被处理器执行时实现上述第一方面任一实施例中的方法步骤。In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the method steps in any embodiment of the first aspect are implemented.
上述直流输电线路保护系统复归方法、装置、设备及存储介质，通过直流输电线路保护系统从高压直流输电系统中获取电气测量数据，根据电气测量数据生成保护动作信号；若直流输电线路保护系统接收到用户输入的预设复归信号，且保护动作信号为第一保护动作信号，则根据第一保护动作信号及预设复归信号生成清零信号；根据清零信号对直流输电线路保护系统进行复归。在本申请实施例提供的技术方案中，与传统的采用自动复归方式对直流输电线路保护系统进行复归操作相比，增加了手动复归的功能，将第一保护动作信号及用户输入的预设复归信号相关联，在触发换流器工作的直流触发脉冲信号消失时，还可以采用手动复归的方式对直流输电线路保护系统进行复归操作，从而提高了直流输电线路保护系统的可靠性。The above-mentioned DC transmission line protection system reset method, device, equipment and storage medium obtain electrical measurement data from the high-voltage DC transmission system through the DC transmission line protection system, and generate a protection action signal based on the electrical measurement data; if the DC transmission line protection system receives If the user inputs a preset reset signal, and the protection action signal is the first protection action signal, a clearing signal is generated based on the first protection action signal and the preset reset signal; the DC transmission line protection system is reset based on the clearing signal. In the technical solution provided by the embodiment of the present application, compared with the traditional automatic reset method for resetting the DC transmission line protection system, a manual reset function is added to reset the first protection action signal and the preset input by the user. The signal is correlated. When the DC trigger pulse signal that triggers the operation of the converter disappears, the DC transmission line protection system can also be reset by manual reset, thereby improving the reliability of the DC transmission line protection system.
附图说明Description of drawings
图1为本申请实施例提供的一种计算机设备的框图；Figure 1 is a block diagram of a computer device provided by an embodiment of the present application;
图2为本申请实施例提供的一种直流输电线路保护系统复归方法的流程图；Figure 2 is a flow chart of a DC transmission line protection system reset method provided by an embodiment of the present application;
图3为本申请实施例提供的一种生成保护动作信号的流程图；Figure 3 is a flow chart for generating a protection action signal provided by an embodiment of the present application;
图4为本申请实施例提供的一种生成第一保护动作信号的流程图；Figure 4 is a flow chart for generating a first protection action signal provided by an embodiment of the present application;
图5为本申请实施例提供的一种根据计数器数值对直流输电线路保护系统进行复归的流程图；Figure 5 is a flow chart for resetting the DC transmission line protection system according to the counter value provided by the embodiment of the present application;
图6为本申请实施例提供的一种直流输电线路保护系统复归方法的流程图；Figure 6 is a flow chart of a DC transmission line protection system reset method provided by an embodiment of the present application;
图7为本申请实施例提供的一种直流输电线路保护系统复归装置的框图。Figure 7 is a block diagram of a DC transmission line protection system reset device provided by an embodiment of the present application.
具体实施方式Detailed ways
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。In order to make the objectives, technical solutions and advantages of the present application more clear, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.
本申请提供的直流输电线路保护系统复归方法可以应用于计算机设备中，计算机设备可以是服务器，也可以是终端，其中，服务器可以为一台服务器也可以为由多台服务器组成的服务器集群，本申请实施例对此不作具体限定，终端可以但不限于是各种个人计算机、笔记本电脑、智能手机、平板电脑和便携式可穿戴设备。The DC transmission line protection system restoration method provided in the present application can be applied to a computer device, which can be a server or a terminal, wherein the server can be a single server or a server cluster composed of multiple servers. The embodiments of the present application do not specifically limit this, and the terminal can be, but is not limited to, various personal computers, laptops, smart phones, tablet computers, and portable wearable devices.
以计算机设备是服务器为例，图1示出了一种服务器的框图，如图1所示，服务器可以包括通过系统总线连接的处理器和存储器。其中，该服务器的处理器用于提供计算和控制能力。该服务器的存储器包括非易失性存储介质、内存储器。该非易失性存储介质存储有操作系统、计算机程序以及数据库。该内存储器为非易失性存储介质中的操作系统和计算机程序的运行提供环境。该计算机程序被处理器执行时以实现一种直流输电线路保护系统复归方法。Taking the computer device as a server as an example, Figure 1 shows a block diagram of a server. As shown in Figure 1, the server may include a processor and a memory connected through a system bus. Among them, the processor of the server is used to provide computing and control capabilities. The server's memory includes non-volatile storage media and internal memory. The non-volatile storage medium stores operating systems, computer programs and databases. This internal memory provides an environment for the execution of operating systems and computer programs in non-volatile storage media. The computer program is executed by a processor to implement a DC transmission line protection system reset method.
本领域技术人员可以理解，图1中示出的结构，仅仅是与本申请方案相关的部分结构的框图，并不构成对本申请方案所应用于其上的服务器的限定，可选地服务器可以包括比图中所示更多或更少的部件，或者组合某些部件，或者具有不同的部件布置。Those skilled in the art can understand that the structure shown in Figure 1 is only a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the server on which the solution of the present application is applied. Optionally, the server may include There may be more or fewer parts than shown, or certain parts may be combined, or may have a different arrangement of parts.
需要说明的是，本申请实施例的执行主体可以是计算机设备，也可以是直流输电线路保护系统复归装置，下述方法实施例中就以计算机设备为执行主体进行说明。It should be noted that the execution subject of the embodiment of the present application may be a computer device or a DC transmission line protection system restoration device. The following method embodiments are described with the computer device as the execution subject.
在一个实施例中，如图2所示，其示出了本申请实施例提供的一种直流输电线路保护系统复归方法的流程图，该方法可以包括以下步骤：In one embodiment, as shown in Figure 2, it shows a flow chart of a DC transmission line protection system reset method provided by an embodiment of the present application. The method may include the following steps:
步骤220、通过直流输电线路保护系统从高压直流输电系统中获取电气测量数据，根据电气测量数据生成保护动作信号；保护动作信号包括第一保护动作信号；第一保护动作信号用于指示高压直流输电系统进行重启。Step 220: Obtain electrical measurement data from the high-voltage DC transmission system through the DC transmission line protection system, and generate a protection action signal based on the electrical measurement data; the protection action signal includes a first protection action signal; the first protection action signal is used to indicate high-voltage DC transmission The system restarts.
其中，电气测量数据用于表征高压直流输电系统的运行状态，直流输电线路保护系统可以通过对应的输入输出I/O系统获取到电气测量数据，可以是实时获取高压直流输电系统的电气测量数据，也可以是按照预设的间隔时长获取电气测量数据。电气测量数据可以是直流电压、直流电流等数据，也可以是其他类型的电气测量数据。在获取到的电气测量数据满足预设的条件后，即确定高压直流输电系统出现故障时，可以生成保护动作信号，保护动作信号可以包括第一保护动作信号，即保护动作信号QU＝1。由于该直流输电线路保护系统的保护出口可以是重启动，那么生成的第一保护动作信号可使高压直流输电系统进行重启，从而使得高压直流输电系统的故障消失。Among them, the electrical measurement data is used to characterize the operating status of the high-voltage DC transmission system. The DC transmission line protection system can obtain the electrical measurement data through the corresponding input and output I/O system, and can obtain the electrical measurement data of the high-voltage DC transmission system in real time. It can also be used to obtain electrical measurement data at preset intervals. The electrical measurement data can be DC voltage, DC current, etc., or other types of electrical measurement data. After the obtained electrical measurement data meets the preset conditions, that is, when it is determined that a fault occurs in the high-voltage direct current transmission system, a protection action signal can be generated. The protection action signal can include the first protection action signal, that is, the protection action signal QU=1. Since the protection outlet of the DC transmission line protection system can be restarted, the generated first protection action signal can restart the high-voltage DC transmission system, thereby making the fault of the high-voltage DC transmission system disappear.
步骤240、若直流输电线路保护系统接收到用户输入的预设复归信号，且保护动作信号为第一保护动作信号，则根据第一保护动作信号及预设复归信号生成清零信号。Step 240: If the DC transmission line protection system receives the preset reset signal input by the user, and the protection action signal is the first protection action signal, a clear signal is generated based on the first protection action signal and the preset reset signal.
其中，对该直流输电线路保护系统新增手动复归的功能，在直流输电线路保护系统接收到用户输入的预设复归信号后，并同时确定此时的保护动作信号为第一保护动作信号，则根据第一保护动作信号及预设复归信号生成清零信号。预设复归信号可以是用户通过触发直流输电线路保护系统的手动复归按钮生成的。保护动作信号为第一保护动作信号时，高压直流输电系统会重启动，此时也就可以确定直流输电线路保护系统生成的保护动作信号为第一保护动作信号。Among them, a manual reset function is added to the DC transmission line protection system. After the DC transmission line protection system receives the preset reset signal input by the user and determines that the protection action signal at this time is the first protection action signal, then A clearing signal is generated according to the first protection action signal and the preset reset signal. The preset reset signal can be generated by the user by triggering a manual reset button of the DC transmission line protection system. When the protection action signal is the first protection action signal, the high-voltage DC transmission system will restart. At this time, it can be determined that the protection action signal generated by the DC transmission line protection system is the first protection action signal.
步骤260、根据清零信号对直流输电线路保护系统进行复归。Step 260: Reset the DC transmission line protection system according to the clear signal.
其中，保护出口为重启动的直流输电线路保护系统的保护逻辑可以采用DISA积分计数模块计数实现，即采用DISA积分计数器。在直流输电线路保护系统生成清零信号后，就可以对直流输电线路保护系统中的保护动作信号的当前值、DISA积分计数器的当前值等进行复归操作，即进行了复位操作，从而在下一次高压直流输电系统出现故障时，直流输电线路保护系统可以正常出口保护动作，从而保证高压直流输电系统的稳定运行。Among them, the protection logic of the DC transmission line protection system with the protection outlet being restarted can be implemented by counting with the DISA integral counting module, that is, using the DISA integral counter. After the DC transmission line protection system generates a reset signal, the current value of the protection action signal in the DC transmission line protection system, the current value of the DISA integral counter, etc. can be reset, that is, a reset operation is performed, so that when the next high-voltage DC transmission system fails, the DC transmission line protection system can normally export the protection action, thereby ensuring the stable operation of the high-voltage DC transmission system.
本实施例中，通过直流输电线路保护系统从高压直流输电系统中获取电气测量数据，根据电气测量数据生成保护动作信号；若直流输电线路保护系统接收到用户输入的预设复归信号，且保护动作信号为第一保护动作信号，则根据第一保护动作信号及预设复归信号生成清零信号；根据清零信号对直流输电线路保护系统进行复归。与传统的采用自动复归方式对直流输电线路保护系统进行复归操作相比，增加了手动复归的功能，将第一保护动作信号及用户输入的预设复归信号相关联，在触发换流器工作的直流触发脉冲信号消失时，还可以采用手动复归的方式对直流输电线路保护系统进行复归操作，从而提高了直流输电线路保护系统的可靠性。In this embodiment, the DC transmission line protection system obtains electrical measurement data from the high-voltage DC transmission system, and generates a protection action signal based on the electrical measurement data; if the DC transmission line protection system receives a preset reset signal input by the user, and the protection action If the signal is the first protection action signal, a clearing signal is generated based on the first protection action signal and the preset reset signal; the DC transmission line protection system is reset based on the clearing signal. Compared with the traditional automatic reset method for DC transmission line protection system reset operation, a manual reset function is added, which associates the first protection action signal with the preset reset signal input by the user, and triggers the operation of the converter. When the DC trigger pulse signal disappears, manual reset can also be used to reset the DC transmission line protection system, thereby improving the reliability of the DC transmission line protection system.
在一个实施例中，在生成清零信号的另一种可能的过程还包括：若直流输电线路保护系统未从高压直流输电系统中获取到触发脉冲信号，则生成清零信号。In one embodiment, another possible process of generating the clearing signal also includes: if the DC transmission line protection system does not obtain the trigger pulse signal from the high-voltage DC transmission system, generating the clearing signal.
其中，将触发脉冲消失信号与直流输电线路保护系统的清零信号预先关联，即触发脉冲消失信号作为清零信号的输入。在直流输电线路保护系统未从高压直流输电系统中获取到触发脉冲信号的情况下，即脉冲触发信号消失时，即生成清零信号。Among them, the trigger pulse disappearing signal is pre-associated with the clearing signal of the DC transmission line protection system, that is, the triggering pulse disappearing signal is used as the input of the clearing signal. When the DC transmission line protection system does not obtain the trigger pulse signal from the high-voltage DC transmission system, that is, when the pulse trigger signal disappears, a clear signal is generated.
传统方法中，是将触发脉冲消失信号与直流输电线路保护系统的保护冻结信号关联，在直流输电线路保护系统产生第一保护动作信号时，即高压直流输电系统会重启动。由于获取到的电气测量量在短时间内依然满足预设的条件，从而使得直流输电线路保护系统中的计数器持续累加，若在直流输电线路保护系统未从高压直流输电系统中获取到触发脉冲信号的情况下，即生成了保护冻结信号，那么直流输电线路保护系统的保护出口会一直保持，从而导致直流输电线路保护系统一直产生告警信号，进而导致高压直流输电系统下次故障后直流输电线路保护系统拒绝保护出口，引起高压直流输电系统直流单极闭锁，而且直流单极闭锁后直流输电线路保护系统无法复归会给复电带来困难。In the traditional method, the trigger pulse disappearance signal is associated with the protection freezing signal of the DC transmission line protection system. When the DC transmission line protection system generates the first protection action signal, the high-voltage DC transmission system will restart. Since the obtained electrical measurement quantity still meets the preset conditions in a short period of time, the counter in the DC transmission line protection system continues to accumulate. If the DC transmission line protection system does not obtain the trigger pulse signal from the high-voltage DC transmission system, In the case of , that is, a protection freeze signal is generated, then the protection outlet of the DC transmission line protection system will always be maintained, causing the DC transmission line protection system to always generate alarm signals, which will lead to the DC transmission line protection after the next fault of the high-voltage DC transmission system. The system refused to protect the outlet, causing DC unipolar blockage of the high-voltage DC transmission system. Moreover, the DC transmission line protection system could not be reset after the DC unipolar blockage, which would bring difficulties in restoring power.
本实施例中，通过将触发脉冲消失信号与直流输电线路保护系统的清零信号关联，在获取不到触发脉冲信号时，即生成清零信号时直流输电线路保护系统进行复归，提高了直流输电线路保护系统的可靠性的同时，也提高了高压直流输电系统运行的稳定性与安全性。In this embodiment, by associating the trigger pulse disappearance signal with the reset signal of the DC transmission line protection system, the DC transmission line protection system is reset when the trigger pulse signal cannot be obtained, that is, when the reset signal is generated, thereby improving the reliability of the DC transmission line protection system while also improving the stability and safety of the operation of the high-voltage DC transmission system.
在一个实施例中，保护动作信号还包括第二保护动作信号，如图3所示，其示出了本申请实施例提供的一种直流输电线路保护系统复归方法的流程图，具体涉及的是生成保护动作信号的一种可能的过程，该方法可以包括以下步骤：In one embodiment, the protection action signal also includes a second protection action signal, as shown in Figure 3, which shows a flow chart of a DC transmission line protection system reset method provided by an embodiment of the present application, specifically involving: A possible process for generating a protection action signal, the method may include the following steps:
步骤320、判断电气测量数据是否为异常电气测量数据。Step 320: Determine whether the electrical measurement data is abnormal electrical measurement data.
步骤340、若电气测量数据为异常电气测量数据，则根据电气测量数据生成保护冻结信号。Step 340: If the electrical measurement data is abnormal electrical measurement data, generate a protection freeze signal based on the electrical measurement data.
步骤360、基于保护冻结信号，将直流输电线路保护系统的当前保护动作信号进行冻结，并将处于冻结状态的当前保护动作信号确定为保护动作信号；当前保护动作信号为第一保护动作信号或第二保护动作信号。Step 360: Based on the protection freezing signal, freeze the current protection action signal of the DC transmission line protection system, and determine the current protection action signal in the frozen state as the protection action signal; the current protection action signal is the first protection action signal or the third protection action signal. 2. Protection action signal.
其中，可以通过将获取到的电气测量数据与预先存储的正常电气测量数据进行比较，从而确定出获取到的电气测量数据是否为异常电气测量数据，预先存储的正常电气数据可以是从正常运行的高压直流输电系统中获取到的。在判断获取到的电气测量数据是否为异常电气测量数据时，可以判断获取到的电气测量数据与正常电气测量数据是否一致来确定，也可以通过电气测量数据与正常电气测量数据的差值是否在预设范围内来确定，还可以通过其他方式来确定获取到的电气测量数据是否为异常电气测量数据，本实施例对此不作具体限定。Among them, it can be determined whether the obtained electrical measurement data is abnormal electrical measurement data by comparing the obtained electrical measurement data with pre-stored normal electrical measurement data. The pre-stored normal electrical data can be obtained from normal operation. obtained from high-voltage direct current transmission systems. When determining whether the obtained electrical measurement data is abnormal electrical measurement data, it can be determined whether the obtained electrical measurement data is consistent with the normal electrical measurement data, or whether the difference between the electrical measurement data and the normal electrical measurement data is within It can be determined within a preset range, and whether the obtained electrical measurement data is abnormal electrical measurement data can also be determined through other methods, which is not specifically limited in this embodiment.
在电气测量数据为异常电气测量数据时，即生成保护冻结信号，基于保护冻结信号，将直流输电线路保护系统的当前保护动作信号进行冻结，并将处于冻结状态的当前保护动作信号确定为保护动作信号，同时还可以将DISA积分计数器进行复归。由于直流输电线路保护系统的保护动作信号可以包括两种状态，因而保护动作信号还可以包括第二保护动作信号，第二保护动作信号与第一保护动作信号相对应，即第二保护动作信号QU＝0，不会使得高压直流输电系统重启。因而，冻结后的当前保护动作信号就可以是第一保护动作信号，也可以是第二保护动作信号。When the electrical measurement data is abnormal electrical measurement data, a protection freezing signal is generated. Based on the protection freezing signal, the current protection action signal of the DC transmission line protection system is frozen, and the current protection action signal in the frozen state is determined as the protection action. signal, and can also reset the DISA integral counter. Since the protection action signal of the DC transmission line protection system can include two states, the protection action signal can also include a second protection action signal. The second protection action signal corresponds to the first protection action signal, that is, the second protection action signal QU. =0, it will not restart the HVDC transmission system. Therefore, the frozen current protection action signal may be the first protection action signal or the second protection action signal.
本实施例中，通过判断电气测量数据是否为异常电气测量数据；若电气测量数据为异常电气测量数据，则根据电气测量数据生成保护冻结信号；基于保护冻结信号，将直流输电线路保护系统的当前保护动作信号进行冻结，并将处于冻结状态的当前保护动作信号确定为保护动作信号。在产生保护冻结信号后，若当前保护动作信号为第二保护动作信号，即相当于对直流输电线路保护系统进行了复归操作；若当前保护动作信号为第一保护动作信号，若同时接收到用户输入的预设复归信号，则通过生成清零信号也可以实现对直流输电线路保护系统的复归，从而提高了对直流输电线路保护系统进行复归操作的便捷性。In this embodiment, it is determined whether the electrical measurement data is abnormal electrical measurement data; if the electrical measurement data is abnormal electrical measurement data, a protection freeze signal is generated based on the electrical measurement data; based on the protection freeze signal, the current status of the DC transmission line protection system is The protection action signal is frozen, and the current protection action signal in the frozen state is determined as the protection action signal. After the protection freeze signal is generated, if the current protection action signal is the second protection action signal, it is equivalent to performing a reset operation on the DC transmission line protection system; if the current protection action signal is the first protection action signal, if the user receives By inputting a preset reset signal, the reset of the DC transmission line protection system can also be achieved by generating a clear signal, thereby improving the convenience of the reset operation of the DC transmission line protection system.
在一个实施例中，在根据电气测量数据生成保护动作信号时，若电气测量数据不是异常电气测量数据，则根据直流输电线路保护系统中计数器的当前值生成第一保护动作信号。In one embodiment, when generating the protection action signal based on the electrical measurement data, if the electrical measurement data is not abnormal electrical measurement data, the first protection action signal is generated based on the current value of the counter in the DC transmission line protection system.
可选地，如图4所示，其示出了本申请实施例提供的一种直流输电线路保护系统复归方法的流程图，具体涉及的是生成第一保护动作信号的一种可能的过程，该方法可以包括以下步骤：Optionally, as shown in Figure 4, it shows a flow chart of a DC transmission line protection system reset method provided by an embodiment of the present application, specifically involving a possible process of generating a first protection action signal, The method may include the following steps:
步骤420、判断电气测量数据是否满足预设的保护条件。Step 420: Determine whether the electrical measurement data meets the preset protection conditions.
步骤440、若满足预设的保护条件，则控制直流输电线路保护系统中的计数器按照预设累加规则进行累加计数。Step 440: If the preset protection conditions are met, control the counter in the DC transmission line protection system to perform cumulative counting according to the preset accumulation rules.
步骤460、在计数器累加至第一预设保护动作延时定值时，生成第一保护动作信号。Step 460: When the counter accumulates to the first preset protection action delay value, generate a first protection action signal.
其中，在电气测量数据不是异常电气测量数据的情况下，需要判断电气测量数据是否满足预设的保护条件。预设的保护条件可以是超过预先设置的电气测量量定值，例如，预设的保护条件可以是预设直流电压定值。若获取到的直流电压超过预设直流电压定值时，则确定电气测量数据满足预设的保护条件。若满足预设的保护条件，则控制直流输电线路保护系统中的DISA积分计数器按照预设累加规则进行累加计数，预设累加规则可以根据实际需求设定，例如，每执行一周期可以累加20。Among them, when the electrical measurement data is not abnormal electrical measurement data, it is necessary to determine whether the electrical measurement data meets the preset protection condition. The preset protection condition may be exceeding a preset electrical measurement value. For example, the preset protection condition may be a preset DC voltage value. If the acquired DC voltage exceeds the preset DC voltage value, it is determined that the electrical measurement data meets the preset protection condition. If the preset protection condition is met, the DISA integral counter in the DC transmission line protection system is controlled to accumulate and count according to a preset accumulation rule. The preset accumulation rule can be set according to actual needs. For example, 20 can be accumulated for each execution cycle.
在计数器累加至第一预设保护动作延时定值时，即DISA积分计数器的当前值达到累加达到第一预设保护动作延时定值，即生成第一保护动作信号，第一预设保护动作延时定值也可以根据实际需求设定，例如，第一预设保护动作延时定值可以设置为50ms。本实施例对DISA积分计数器每执行一周期的累加数值以及第一预设保护动作延时定值均不作具体限定。When the counter accumulates to the first preset protection action delay setting value, that is, the current value of the DISA integral counter reaches the first preset protection action delay setting value, that is, the first protection action signal is generated, and the first preset protection action signal is generated. The action delay setting value can also be set according to actual needs. For example, the first preset protection action delay setting value can be set to 50ms. This embodiment does not specifically limit the accumulated value of the DISA integral counter for each execution cycle and the first preset protection action delay setting value.
本实施例中，通过判断电气测量数据是否满足预设的保护条件；若满足预设的保护条件，则控制直流输电线路保护系统中的计数器按照预设累加规则进行累加计数；在计数器累加至第一预设保护动作延时定值时，生成第一保护动作信号。通过直流输电线路保护系统中计数器的累加值可以准确的生成第一保护动作信号，从而可以更加可靠地向高压直流输电系统进行保护出口。In this embodiment, it is judged whether the electrical measurement data meets the preset protection conditions; if the preset protection conditions are met, the counter in the DC transmission line protection system is controlled to perform cumulative counting according to the preset accumulation rules; when the counter accumulates to the When a preset protection action delay value is set, a first protection action signal is generated. The first protection action signal can be accurately generated through the accumulated value of the counter in the DC transmission line protection system, so that the protection outlet to the high-voltage DC transmission system can be carried out more reliably.
在一个实施例中，如图5所示，其示出了本申请实施例提供的一种直流输电线路保护系统复归方法的流程图，具体涉及的是根据计数器数值对直流输电线路保护系统进行复归的一种可能的过程，该方法可以包括以下步骤：In one embodiment, as shown in Figure 5, it shows a flow chart of a method for resetting a DC transmission line protection system provided by an embodiment of the present application, which specifically involves resetting the DC transmission line protection system based on counter values. A possible process may include the following steps:
步骤520、若不满足预设的保护条件，则控制直流输电线路保护系统中的计数器按照预设累减规则进行累减计数。Step 520: If the preset protection conditions are not met, control the counter in the DC transmission line protection system to perform cumulative counting according to the preset cumulative subtraction rules.
步骤540、在计数器累减至第二预设保护动作延时定值时，对直流输电线路保护系统进行复归。Step 540: When the counter reaches the second preset protection action delay value, reset the DC transmission line protection system.
其中，在电气测量数据不满足预设保护条件的情况下，则控制直流输电线路保护系统中的计数器按照预设累减规则进行累减计数，预设累减规则可以根据实际需求设定，例如，每执行一周期可以累减1。在计数器累减至第二预设保护动作延时定值时，对直流输电线路保护系统进行复归，即对直流输电线路保护系统的保护动作信号和DISA积分计数器进行复归操作。第二预设保护动作延时定值可以与第一预设保护动作延时定值相同，也可以根据实际需求设定。本实施例对DISA积分计数器每执行一周期的累减数值以及第二预设保护动作延时定值均不作具体限定。Among them, when the electrical measurement data does not meet the preset protection conditions, the counter in the DC transmission line protection system is controlled to count down according to the preset cumulative decrement rule. The preset cumulative decrement rule can be set according to actual needs. For example, it can be decremented by 1 for each execution cycle. When the counter is decremented to the second preset protection action delay constant, the DC transmission line protection system is reset, that is, the protection action signal of the DC transmission line protection system and the DISA integral counter are reset. The second preset protection action delay constant can be the same as the first preset protection action delay constant, and can also be set according to actual needs. This embodiment does not specifically limit the decrement value of the DISA integral counter for each execution cycle and the second preset protection action delay constant.
本实施例中，若不满足预设的保护条件，则控制直流输电线路保护系统中的计数器按照预设累减规则进行累减计数；在计数器累减至第二预设保护动作延时定值时，对直流输电线路保护系统进行复归。通过直流输电线路保护系统中计数器的累减值可以更加可靠地实现对直流输电线路保护系统的复归操作。In this embodiment, if the preset protection conditions are not met, the counter in the DC transmission line protection system is controlled to perform cumulative counting according to the preset cumulative subtraction rules; when the counter is cumulatively reduced to the second preset protection action delay setting value When, the DC transmission line protection system is reset. The reset operation of the DC transmission line protection system can be realized more reliably through the cumulative decrement value of the counter in the DC transmission line protection system.
在一个实施例中，如图6所示，其示出了本申请实施例提供的一种直流输电线路保护系统复归方法的流程图，该方法可以包括以下步骤：In one embodiment, as shown in Figure 6, it shows a flow chart of a DC transmission line protection system reset method provided by an embodiment of the present application. The method may include the following steps:
步骤601、获取电气测量数据。Step 601: Obtain electrical measurement data.
步骤602、判断是否接收到清零信号。Step 602: Determine whether a clear signal is received.
步骤603、若接收到清零信号，则根据清零信号对直流输电线路保护系统进行复归。Step 603: If the clearing signal is received, reset the DC transmission line protection system according to the clearing signal.
步骤604、若未接收到清零信号，则判断是否接收到保护冻结信号。Step 604: If the clear signal is not received, determine whether a protection freeze signal is received.
步骤605、若接收到保护冻结信号，则将直流输电线路保护系统的当前保护动作信号进行冻结，并将处于冻结状态的当前保护动作信号确定为保护动作信号。Step 605: If a protection freezing signal is received, freeze the current protection action signal of the DC transmission line protection system, and determine the current protection action signal in the frozen state as the protection action signal.
步骤606、若未接收到保护冻结信号，则判断电气测量数据是否满足预设的保护条件。Step 606: If the protection freeze signal is not received, determine whether the electrical measurement data meets the preset protection condition.
步骤607、若满足预设的保护条件，则控制直流输电线路保护系统中的计数器按照预设累加规则进行累加计数。Step 607: If the preset protection condition is met, control the counter in the DC transmission line protection system to perform cumulative counting according to the preset accumulation rule.
步骤608、判断计数器是否达到预设保护动作延时定值。Step 608: Determine whether the counter reaches the preset protection action delay value.
步骤609、在计数器累加至第一预设保护动作延时定值时，生成第一保护动作信号。Step 609: When the counter accumulates to a first preset protection action delay value, a first protection action signal is generated.
步骤610、若不满足预设的保护条件，则控制直流输电线路保护系统中的计数器按照预设累减规则进行累减计数。Step 610: If the preset protection conditions are not met, control the counter in the DC transmission line protection system to perform cumulative counting according to the preset cumulative subtraction rules.
步骤611、在计数器累减至第二预设保护动作延时定值时，对直流输电线路保护系统进行复归。Step 611: When the counter decreases to the second preset protection action delay value, reset the DC transmission line protection system.
本实施例提供的直流输电线路保护系统复归方法中各步骤，其实现原理和技术效果与前面各直流输电线路保护系统复归方法实施例中类似，在此不再赘述。图6实施例中各步骤的实现方式只是一种举例，对各实现方式不作限定，各步骤的顺序在实际应用中可进行调整，只要可以实现各步骤的目的即可。The implementation principles and technical effects of each step in the DC transmission line protection system reset method provided in this embodiment are similar to those in the previous DC transmission line protection system reset method embodiments, and will not be described again here. The implementation manner of each step in the embodiment of Figure 6 is only an example, and the implementation manner is not limited. The order of each step can be adjusted in actual applications, as long as the purpose of each step can be achieved.
在本申请实施例提供的技术方案中，由于增加了手动复归的功能，将第一保护动作信号及用户输入的预设复归信号相关联，在触发换流器工作的直流触发脉冲信号消失时，还可以采用手动复归的方式对直流输电线路保护系统进行复归操作，从而提高了直流输电线路保护系统的可靠性。In the technical solution provided by the embodiment of the present application, due to the addition of a manual reset function, the first protection action signal is associated with the preset reset signal input by the user. When the DC trigger pulse signal that triggers the operation of the converter disappears, Manual reset can also be used to reset the DC transmission line protection system, thereby improving the reliability of the DC transmission line protection system.
应该理解的是，虽然图2-6的流程图中的各个步骤按照箭头的指示依次显示，但是这些步骤并不是必然按照箭头指示的顺序依次执行。除非本文中有明确的说明，这些步骤的执行并没有严格的顺序限制，这些步骤可以以其它的顺序执行。而且，图2-6中的至少一部分步骤可以包括多个步骤或者多个阶段，这些步骤或者阶段并不必然是在同一时刻执行完成，而是可以在不同的时刻执行，这些步骤或者阶段的执行顺序也不必然是依次进行，而是可以与其它步骤或者其它步骤中的步骤或者阶段的至少一部分轮流或者交替地执行。It should be understood that although the various steps in the flowcharts of Figures 2-6 are shown in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated in this article, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in Figures 2-6 may include multiple steps or stages. These steps or stages are not necessarily executed at the same time, but may be executed at different times. The execution of these steps or stages The sequence is not necessarily sequential, but may be performed in turn or alternately with other steps or at least part of steps or stages in other steps.
请参考图7，其示出了本申请实施例提供的一种直流输电线路保护系统复归装置700的框图。如图7所示，该直流输电线路保护系统复归装置700可以包括：获取模块702、第一生成模块704和复归模块706，其中：Please refer to FIG. 7 , which shows a block diagram of a DC transmission line protection system reset device 700 provided by an embodiment of the present application. As shown in Figure 7, the DC transmission line protection system reset device 700 may include: an acquisition module 702, a first generation module 704 and a reset module 706, wherein:
获取模块702，用于通过直流输电线路保护系统从高压直流输电系统中获取电气测量数据，根据电气测量数据生成保护动作信号；保护动作信号包括第一保护动作信号；第一保护动作信号用于指示高压直流输电系统进行重启。The acquisition module 702 is used to obtain electrical measurement data from the high-voltage DC transmission system through the DC transmission line protection system, and generate a protection action signal based on the electrical measurement data; the protection action signal includes a first protection action signal; the first protection action signal is used to indicate The high-voltage direct current transmission system is restarted.
第一生成模块704，用于若直流输电线路保护系统接收到用户输入的预设复归信号，且保护动作信号为第一保护动作信号，则根据第一保护动作信号及预设复归信号生成清零信号。The first generation module 704 is used to generate a reset based on the first protection action signal and the preset reset signal if the DC transmission line protection system receives the preset reset signal input by the user and the protection action signal is the first protection action signal. Signal.
复归模块706，用于根据清零信号对直流输电线路保护系统进行复归。The reset module 706 is used to reset the DC transmission line protection system according to the reset signal.
在一个实施例中，上述直流输电线路保护系统复归装置700还包括第二生成模块708，第二生成模块708用于若直流输电线路保护系统未从高压直流输电系统中获取到触发脉冲信号，则生成清零信号。In one embodiment, the above-mentioned DC transmission line protection system reset device 700 also includes a second generation module 708. The second generation module 708 is used to generate a trigger pulse signal if the DC transmission line protection system does not obtain the trigger pulse signal from the high-voltage DC transmission system. Generate a clear signal.
在一个实施例中，上述获取模块702包括判断单元、第一生成单元和确定单元，其中，判断单元用于判断电气测量数据是否为异常电气测量数据；第一生成单元用于若电气测量数据为异常电气测量数据，则根据电气测量数据生成保护冻结信号；确定单元用于基于保护冻结信号，将直流输电线路保护系统的当前保护动作信号进行冻结，并将处于冻结状态的当前保护动作信号确定为保护动作信号；当前保护动作信号为第一保护动作信号或第二保护动作信号。In one embodiment, the acquisition module 702 includes a judgment unit, a first generation unit and a determination unit, wherein the judgment unit is used to judge whether the electrical measurement data is abnormal electrical measurement data; the first generation unit is used to generate a protection freeze signal according to the electrical measurement data if the electrical measurement data is abnormal electrical measurement data; the determination unit is used to freeze the current protection action signal of the DC transmission line protection system based on the protection freeze signal, and determine the current protection action signal in the frozen state as the protection action signal; the current protection action signal is the first protection action signal or the second protection action signal.
在一个实施例中，上述获取模块702还包括第二生成单元，第二生成单元用于若电气测量数据不是异常电气测量数据，则根据直流输电线路保护系统中计数器的当前值生成第一保护动作信号。In one embodiment, the above-mentioned acquisition module 702 also includes a second generation unit. The second generation unit is configured to generate a first protection action based on the current value of the counter in the DC transmission line protection system if the electrical measurement data is not abnormal electrical measurement data. Signal.
在一个实施例中，上述第二生成单元具体用于判断电气测量数据是否满足预设的保护条件；若满足预设的保护条件，则控制直流输电线路保护系统中的计数器按照预设累加规则进行累加计数；在计数器累加至第一预设保护动作延时定值时，生成第一保护动作信号。In one embodiment, the above-mentioned second generating unit is specifically used to determine whether the electrical measurement data meets the preset protection conditions; if the preset protection conditions are met, the counter in the DC transmission line protection system is controlled to accumulate and count according to the preset accumulation rules; when the counter accumulates to the first preset protection action delay value, a first protection action signal is generated.
在一个实施例中，上述第二生成单元还用于若不满足预设的保护条件，则控制直流输电线路保护系统中的计数器按照预设累减规则进行累减计数；在计数器累减至第二预设保护动作延时定值时，对直流输电线路保护系统进行复归。In one embodiment, the above-mentioned second generation unit is also used to control the counter in the DC transmission line protection system to perform cumulative counting according to the preset cumulative subtraction rule if the preset protection conditions are not met; 2. When the protection action delay is preset, the DC transmission line protection system is reset.
在一个实施例中，上述复归模块706包括复归单元，复归单元用于根据清零信号，对直流输电线路保护系统的保护动作信号及计数器的当前值进行复归。In one embodiment, the above-mentioned reset module 706 includes a reset unit, which is used to reset the protection action signal of the DC transmission line protection system and the current value of the counter according to the clear signal.
关于直流输电线路保护系统复归装置的具体限定可以参见上文中对于直流输电线路保护系统复归方法的限定，在此不再赘述。上述直流输电线路保护系统复归装置中的各个模块可全部或部分通过软件、硬件及其组合来实现。上述各模块可以硬件形式内嵌于或独立于计算机设备中的处理器中，也可以以软件形式存储于计算机设备中的存储器中，以便于处理器调用执行以上各个模块的操作。For specific limitations on the reset device of the DC transmission line protection system, please refer to the limitations on the reset method of the DC transmission line protection system mentioned above, which will not be described again here. Each module in the above-mentioned DC transmission line protection system reset device can be realized in whole or in part through software, hardware and their combination. Each of the above modules may be embedded in or independent of the processor of the computer device in the form of hardware, or may be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations of the above modules.
在本申请的一个实施例中，提供了一种计算机设备，该计算机设备包括存储器和处理器，存储器中存储有计算机程序，该处理器执行计算机程序时实现以下步骤：In one embodiment of the present application, a computer device is provided. The computer device includes a memory and a processor. A computer program is stored in the memory. When the processor executes the computer program, it implements the following steps:
通过直流输电线路保护系统从高压直流输电系统中获取电气测量数据，根据电气测量数据生成保护动作信号；保护动作信号包括第一保护动作信号；第一保护动作信号用于指示高压直流输电系统进行重启；若直流输电线路保护系统接收到用户输入的预设复归信号，且保护动作信号为第一保护动作信号，则根据第一保护动作信号及预设复归信号生成清零信号；根据清零信号对直流输电线路保护系统进行复归。The DC transmission line protection system obtains electrical measurement data from the high-voltage DC transmission system, and generates a protection action signal based on the electrical measurement data; the protection action signal includes a first protection action signal; the first protection action signal is used to instruct the high-voltage DC transmission system to restart ; If the DC transmission line protection system receives the preset reset signal input by the user, and the protection action signal is the first protection action signal, a clearing signal is generated based on the first protection action signal and the preset reset signal; according to the clearing signal The DC transmission line protection system is reset.
在本申请的一个实施例中，处理器执行计算机程序时还实现以下步骤：In one embodiment of the present application, the processor also implements the following steps when executing the computer program:
若直流输电线路保护系统未从高压直流输电系统中获取到触发脉冲信号，则生成清零信号。If the DC transmission line protection system does not obtain the trigger pulse signal from the high-voltage DC transmission system, a clear signal is generated.
在本申请的一个实施例中，保护动作信号还包括第二保护动作信号；In one embodiment of the present application, the protection action signal further includes a second protection action signal;
处理器执行计算机程序时还实现以下步骤：The processor also performs the following steps when executing a computer program:
判断电气测量数据是否为异常电气测量数据；若电气测量数据为异常电气测量数据，则根据电气测量数据生成保护冻结信号；基于保护冻结信号，将直流输电线路保护系统的当前保护动作信号进行冻结，并将处于冻结状态的当前保护动作信号确定为保护动作信号；当前保护动作信号为第一保护动作信号或第二保护动作信号。Determine whether the electrical measurement data is abnormal electrical measurement data; if the electrical measurement data is abnormal electrical measurement data, generate a protection freeze signal based on the electrical measurement data; based on the protection freeze signal, freeze the current protection action signal of the DC transmission line protection system. And the current protection action signal in the frozen state is determined as the protection action signal; the current protection action signal is the first protection action signal or the second protection action signal.
在本申请的一个实施例中，处理器执行计算机程序时还实现以下步骤：In one embodiment of the present application, the processor also implements the following steps when executing the computer program:
若电气测量数据不是异常电气测量数据，则根据直流输电线路保护系统中计数器的当前值生成第一保护动作信号。If the electrical measurement data is not abnormal electrical measurement data, the first protection action signal is generated according to the current value of the counter in the DC transmission line protection system.
在本申请的一个实施例中，处理器执行计算机程序时还实现以下步骤：In one embodiment of the present application, the processor also implements the following steps when executing the computer program:
判断电气测量数据是否满足预设的保护条件；若满足预设的保护条件，则控制直流输电线路保护系统中的计数器按照预设累加规则进行累加计数；在计数器累加至第一预设保护动作延时定值时，生成第一保护动作信号。Determine whether the electrical measurement data meets the preset protection conditions; if the preset protection conditions are met, control the counter in the DC transmission line protection system to accumulate and count according to the preset accumulation rules; when the counter accumulates to the first preset protection action delay When the value is set, the first protection action signal is generated.
在本申请的一个实施例中，处理器执行计算机程序时还实现以下步骤：In one embodiment of the present application, the processor also implements the following steps when executing the computer program:
若不满足预设的保护条件，则控制直流输电线路保护系统中的计数器按照预设累减规则进行累减计数；在计数器累减至第二预设保护动作延时定值时，对直流输电线路保护系统进行复归。If the preset protection conditions are not met, the counter in the DC transmission line protection system is controlled to count down according to the preset accumulation and subtraction rules; when the counter decreases to the second preset protection action delay setting value, the DC transmission The line protection system resets.
在本申请的一个实施例中，处理器执行计算机程序时还实现以下步骤：In one embodiment of the present application, when the processor executes the computer program, the processor further implements the following steps:
根据清零信号，对直流输电线路保护系统的保护动作信号及计数器的当前值进行复归。According to the clearing signal, the protection action signal of the DC transmission line protection system and the current value of the counter are reset.
本申请实施例提供的计算机设备，其实现原理和技术效果与上述方法实施例类似，在此不再赘述。The computer device provided in the embodiment of the present application has similar implementation principles and technical effects to those of the above-mentioned method embodiment, which will not be repeated here.
在本申请的一个实施例中，提供了一种计算机可读存储介质，其上存储有计算机程序，计算机程序被处理器执行时实现以下步骤：In one embodiment of the present application, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:
通过直流输电线路保护系统从高压直流输电系统中获取电气测量数据，根据电气测量数据生成保护动作信号；保护动作信号包括第一保护动作信号；第一保护动作信号用于指示高压直流输电系统进行重启；若直流输电线路保护系统接收到用户输入的预设复归信号，且保护动作信号为第一保护动作信号，则根据第一保护动作信号及预设复归信号生成清零信号；根据清零信号对直流输电线路保护系统进行复归。The DC transmission line protection system obtains electrical measurement data from the high-voltage DC transmission system, and generates a protection action signal based on the electrical measurement data; the protection action signal includes a first protection action signal; the first protection action signal is used to instruct the high-voltage DC transmission system to restart ; If the DC transmission line protection system receives the preset reset signal input by the user, and the protection action signal is the first protection action signal, a clearing signal is generated based on the first protection action signal and the preset reset signal; according to the clearing signal The DC transmission line protection system is reset.
在本申请的一个实施例中，计算机程序被处理器执行时还实现以下步骤：In one embodiment of the present application, when the computer program is executed by the processor, the following steps are also implemented:
若直流输电线路保护系统未从高压直流输电系统中获取到触发脉冲信号，则生成清零信号。If the DC transmission line protection system does not obtain the trigger pulse signal from the high-voltage DC transmission system, a clear signal is generated.
在本申请的一个实施例中，保护动作信号还包括第二保护动作信号；In one embodiment of the present application, the protection action signal further includes a second protection action signal;
计算机程序被处理器执行时还实现以下步骤：A computer program also performs the following steps when executed by a processor:
判断电气测量数据是否为异常电气测量数据；若电气测量数据为异常电气测量数据，则根据电气测量数据生成保护冻结信号；基于保护冻结信号，将直流输电线路保护系统的当前保护动作信号进行冻结，并将处于冻结状态的当前保护动作信号确定为保护动作信号；当前保护动作信号为第一保护动作信号或第二保护动作信号。Determine whether the electrical measurement data is abnormal electrical measurement data; if the electrical measurement data is abnormal electrical measurement data, generate a protection freeze signal based on the electrical measurement data; based on the protection freeze signal, freeze the current protection action signal of the DC transmission line protection system. And the current protection action signal in the frozen state is determined as the protection action signal; the current protection action signal is the first protection action signal or the second protection action signal.
在本申请的一个实施例中，计算机程序被处理器执行时还实现以下步骤：In one embodiment of the present application, when the computer program is executed by the processor, the following steps are also implemented:
若电气测量数据不是异常电气测量数据，则根据直流输电线路保护系统中计数器的当前值生成第一保护动作信号。If the electrical measurement data is not abnormal electrical measurement data, the first protection action signal is generated according to the current value of the counter in the DC transmission line protection system.
在本申请的一个实施例中，计算机程序被处理器执行时还实现以下步骤：In one embodiment of the present application, when the computer program is executed by the processor, the following steps are also implemented:
判断电气测量数据是否满足预设的保护条件；若满足预设的保护条件，则控制直流输电线路保护系统中的计数器按照预设累加规则进行累加计数；在计数器累加至第一预设保护动作延时定值时，生成第一保护动作信号。Determine whether the electrical measurement data meets the preset protection conditions; if the preset protection conditions are met, control the counter in the DC transmission line protection system to accumulate and count according to the preset accumulation rules; when the counter accumulates to the first preset protection action delay When the value is set, the first protection action signal is generated.
在本申请的一个实施例中，计算机程序被处理器执行时还实现以下步骤：In one embodiment of the present application, when the computer program is executed by the processor, the following steps are also implemented:
若不满足预设的保护条件，则控制直流输电线路保护系统中的计数器按照预设累减规则进行累减计数；在计数器累减至第二预设保护动作延时定值时，对直流输电线路保护系统进行复归。If the preset protection conditions are not met, the counter in the DC transmission line protection system is controlled to count down according to the preset accumulation and subtraction rules; when the counter decreases to the second preset protection action delay setting value, the DC transmission The line protection system resets.
在本申请的一个实施例中，计算机程序被处理器执行时还实现以下步骤：In one embodiment of the present application, when the computer program is executed by the processor, the following steps are also implemented:
根据清零信号，对直流输电线路保护系统的保护动作信号及计数器的当前值进行复归。According to the reset signal, the protection action signal of the DC transmission line protection system and the current value of the counter are reset.
本实施例提供的计算机可读存储介质，其实现原理和技术效果与上述方法实施例类似，在此不再赘述。The implementation principles and technical effects of the computer-readable storage medium provided by this embodiment are similar to those of the above method embodiments, and will not be described again here.
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的计算机程序可存储于一非易失性计算机可读取存储介质中，该计算机程序在执行时，可包括如上述各方法的实施例的流程。其中，本申请所提供的各实施例中所使用的对存储器、存储、数据库或其它介质的任何引用，均可包括非易失性和/或易失性存储器。非易失性存储器可包括只读存储器(ROM)、可编程ROM(PROM)、电可编程ROM(EPROM)、电可擦除可编程ROM(EEPROM)或闪存。易失性存储器可包括随机存取存储器(RAM)或者外部高速缓冲存储器。作为说明而非局限，RAM以多种形式可得，诸如静态RAM(SRAM)、动态RAM(DRAM)、同步DRAM(SDRAM)、双数据率SDRAM(DDRSDRAM)、增强型SDRAM(ESDRAM)、同步链路(Synchlink)DRAM(SLDRAM)、存储器总线(Rambus)直接RAM(RDRAM)、直接存储器总线动态RAM(DRDRAM)、以及存储器总线动态RAM(RDRAM)等。Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage. In the media, when executed, the computer program may include the processes of the above method embodiments. Any reference to memory, storage, database or other media used in the embodiments provided in this application may include non-volatile and/or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous chain Synchlink DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。The technical features of the above embodiments can be combined in any way. To simplify the description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, all possible combinations should be used. It is considered to be within the scope of this manual.
以上实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。The above embodiments only express several implementation modes of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all fall within the protection scope of the present application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims (10)
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