技术领域technical field
本发明涉及一种配电终端遥控回路，具体涉及一种带接点返校的多级控制配电终端防误动遥控回路及方法。The invention relates to a remote control circuit of a power distribution terminal, in particular to a multi-stage control power distribution terminal anti-misoperation remote control circuit and method with contact back-to-school.
背景技术Background technique
现有的行业标准《DL/T 721-2013配电网自动化系统远方终端》中4.4.4.2.1和4.4.4.3.1两条明确规定“遥控应采用先选择再执行的方式，并且选择之后的返校信息应由继电器接点提供”。但并未具体明确该接点除用于返校之外的其它相关电路要求，所以目前在配网终端中的遥控回路一般实现方式如图1、图2所示。4.4.4.2.1 and 4.4.4.3.1 of the existing industry standard "DL/T 721-2013 Distribution Network Automation System Remote Terminal" clearly stipulates that "remote control should be selected first and then executed, and after selection The back-to-school information should be provided by the relay contacts". However, it has not specifically clarified the requirements of other related circuits for this contact except for returning to school, so the current general implementation of the remote control circuit in the distribution network terminal is shown in Figure 1 and Figure 2.
图1、图2两种实现方式虽然满足了行业标准的要求，且图2的实现方式较图1实现方式有所改进，但都存在以下问题：Although the two implementations in Figure 1 and Figure 2 meet the requirements of the industry standard, and the implementation in Figure 2 is improved compared with the implementation in Figure 1, there are the following problems:
1)遥控分执行继电器(YKFJ)、遥控合执行继电器(YKHJ)的DSP控制回路不能相互闭锁，存在遥控分闸、遥控合闸出口同时有效的可能性；1) The DSP control loops of the remote control branch executive relay (YKFJ) and the remote control close executive relay (YKHJ) cannot be mutually locked, and there is a possibility that the remote control opening and remote control closing outlets are effective at the same time;
2)一旦遥控分执行继电器(YKFJ)或遥控合执行继电器(YKHJ)常开出口接点黏连，将导致遥控出口回路始终处于导通状态。2) Once the normally open outlet contacts of the remote control sub-execution relay (YKFJ) or the remote control close-actuation relay (YKHJ) stick together, the remote control output circuit will always be in the conduction state.
而遥控回路的任何错误输出都将对电力系统的运行造成严重影响，因此，在满足已有行业标准基础上，增强遥控电路的可靠性对于配电终端的精确控制具有非常重要的意义。Any wrong output of the remote control circuit will seriously affect the operation of the power system. Therefore, on the basis of meeting the existing industry standards, enhancing the reliability of the remote control circuit is of great significance for the precise control of power distribution terminals.
发明内容Contents of the invention
本发明的目的就是为了解决上述问题，提出了一种带接点返校的多级控制配电终端防误动遥控回路及方法，The purpose of the present invention is to solve the above problems, and propose a multi-level control power distribution terminal anti-misoperation remote control circuit and method with contact back-to-school,
为了实现上述目的，本发明采用如下技术方案：In order to achieve the above object, the present invention adopts the following technical solutions:
一种带接点返校的多级控制配电终端防误动遥控回路，包括：遥控分选择继电器XZFJ、遥控合选择继电器XZHJ、遥控执行总控继电器ZKJ、遥控分执行继电器YKFJ、遥控合执行继电器YKHJ；A multi-level control power distribution terminal anti-misoperation remote control circuit with contact back-to-school, including: remote control sub-selection relay XZFJ, remote control combination selection relay XZHJ, remote control execution master control relay ZKJ, remote control sub-execution relay YKFJ, remote control combination execution relay YKHJ;
所述遥控分选择继电器的常开接点XZFJ_a、遥控合选择继电器的常闭接点XZHJ_b以及遥控分执行继电器YKFJ依次串联连接；所述遥控合选择继电器的常开接点XZHJ_a、遥控分选择继电器常闭接点XZFJ_b以及遥控合执行继电器YKHJ依次串联连接；The normally open contact XZFJ_a of the remote control sub-selection relay, the normally closed contact XZHJ_b of the remote control sub-selection relay and the remote control sub-execution relay YKFJ are sequentially connected in series; the normally open contact XZHJ_a of the remote control sub-selection relay, the normally closed contact of the remote control sub-selection relay XZFJ_b and remote closing executive relay YKHJ are connected in series in sequence;
所述遥控分选择继电器的常开接点XZFJ_a和遥控合选择继电器的常闭接点XZHJ_b串接后的信号传送给DSP作为遥控分选择命令的返校信号；The signal after the normally open contact XZFJ_a of the remote control selection relay and the normally closed contact XZHJ_b of the remote control selection relay is connected in series is sent to the DSP as the return signal of the remote control selection command;
所述遥控合选择继电器的常开接点XZHJ_a和遥控分选择继电器常闭接点XZFJ_b串接后的信号传送给DSP作为遥控合选择命令的返校信号；The signal after the normally open contact XZHJ_a of the remote control selection relay and the normally closed contact XZFJ_b of the remote control selection relay is connected in series is sent to the DSP as the return signal of the remote control selection command;
所述遥控分选择继电器XZFJ、遥控合选择继电器XZHJ、遥控执行总控继电器ZKJ、遥控分执行继电器YKFJ、遥控合执行继电器YKHJ均由DSP控制信号控制。The remote control sub-selection relay XZFJ, remote control combination selection relay XZHJ, remote control execution master control relay ZKJ, remote control sub-execution relay YKFJ, and remote control combination execution relay YKHJ are all controlled by DSP control signals.
所述遥控分选择继电器XZFJ和遥控合选择继电器XZHJ均至少具有一付a型常开接点和一付b型常闭接点、或者至少两付c型转换接点。Both the remote control sub-selection relay XZFJ and the remote control close selection relay XZHJ have at least one pair of a-type normally open contacts and one pair of b-type normally closed contacts, or at least two pairs of c-type changeover contacts.
所述遥控分选择继电器的常开接点XZFJ_a与遥控合选择继电器的常闭接点XZHJ_b串联连接，用于控制遥控分执行继电器YKFJ的电源端，DSP同时采集该串接接点信号作为遥控分选择命令的返校信号。The normally open contact XZFJ_a of the remote control sub-selection relay is connected in series with the normally closed contact XZHJ_b of the remote control sub-selection relay, which is used to control the power supply end of the remote control sub-execution relay YKFJ. Back to school signal.
所述遥控合选择继电器的常开接点XZHJ_a与遥控分选择继电器的常闭接点XZFJ_b串联连接，用于控制遥控合执行继电器YKHJ的电源端，DSP同时采集该串接接点信号作为遥控合选择命令的返校信号。The normally open contact XZHJ_a of the remote control selection relay is connected in series with the normally closed contact XZFJ_b of the remote control selection relay, and is used to control the power supply end of the remote control execution relay YKHJ. Back to school signal.
所述遥控执行总控继电器ZKJ至少具有一付a型常开接点，所述遥控执行总控继电器ZKJ的常开接点控制遥控分执行继电器YKFJ的常开接点出口和遥控合执行继电器常开接点出口的操作电源公共端。The remote execution master control relay ZKJ has at least one a-type normally open contact, the normally open contact of the remote execution master control relay ZKJ controls the normally open contact outlet of the remote control branch execution relay YKFJ and the normally open contact outlet of the remote control execution relay YKFJ The common terminal of the operating power supply.
一种带接点返校的多级控制配电终端防误动遥控回路的方法，包括：A method for multi-level control of a power distribution terminal anti-maloperation remote control circuit with contact back-to-school, including:
1)遥控分闸选择、返校正确：1) The remote control opening selection and return to school are correct:
主机端向配电终端下发遥控分闸选择命令，配电终端收到遥控分闸选择命令后，DSP控制遥控分选择继电器XZFJ动作；The host end sends the remote control opening selection command to the power distribution terminal, and after the power distribution terminal receives the remote control opening selection command, the DSP controls the remote control branch selection relay XZFJ to act;
遥控分选择继电器的常开接点XZFJ_a闭合、遥控分选择继电器的常闭接点XZFJ_b打开，此时由于遥控合选择继电器XZHJ线圈未被驱动，遥控合选择继电器的常开接点XZHJ_a打开、遥控合选择继电器的常闭接点XZHJ_b闭合；此时不存在错误的遥控合闸返校信号，遥控遥控分闸选择命令返校信号有效；The normally open contact XZFJ_a of the remote control selection relay is closed, and the normally closed contact XZFJ_b of the remote control selection relay is opened. At this time, since the coil of the remote control selection relay XZHJ is not driven, the normally open contact XZHJ_a of the remote control selection relay is opened, and the remote control selection relay is closed. The normally closed contact XZHJ_b is closed; at this time, there is no wrong remote control closing return signal, and the remote control remote opening selection command return signal is valid;
2)遥控返校正确后，遥控执行：2) After the remote control back to school is correct, the remote control executes:
当主机接收到遥控返校正确信息后，下发遥控分执行命令；配电终端收到遥控分闸执行命令后，DSP继续控制遥控分执行继电器YKFJ和遥控执行总控继电器ZKJ线圈动作，遥控分执行继电器常开接点YKFJ_a与遥控执行总控继电器常开接点ZKJ_a闭合，对外接线端子的遥控分闸才会与操作电源接通、最终实现遥控分闸出口。When the host computer receives the correct information of the remote control return to school, it issues the remote control branch execution command; after the power distribution terminal receives the remote control switch off execution command, the DSP continues to control the remote control branch execution relay YKFJ and the remote control execution master control relay ZKJ coil action, and the remote control branch The normally open contact YKFJ_a of the executive relay and the normally open contact ZKJ_a of the remote executive master control relay are closed, and the remote control opening of the external terminal will be connected to the operating power supply, and finally the remote control opening and exit will be realized.
所述步骤1)中，主机端向配电终端下发遥控分闸选择命令，配电终端收到遥控分闸选择命令后，DSP控制遥控分选择继电器XZFJ动作；如果出现以下任一状况，均认为遥控返校错误，遥控过程被终止：In the step 1), the host terminal sends a remote control opening selection command to the power distribution terminal. After the power distribution terminal receives the remote control opening selection command, the DSP controls the remote control sub-selection relay XZFJ to act; if any of the following conditions occurs, both The remote control process is considered to be an error, and the remote control process is terminated:
①遥控合选择继电器的常开接点XZHJ_a与遥控分选择继电器的常闭接点XZFJ_b的串接回路异常接通，存在遥控合返校信号；①The series connection circuit of the normally open contact XZHJ_a of the remote control selection relay and the normally closed contact XZFJ_b of the remote control sub-selection relay is abnormally connected, and there is a remote control return-to-school signal;
②DSP控制遥控分选择继电器XZFJ回路出现异常未成功控制遥控分选择继电器XZFJ动作、或者遥控分选择继电器常开接点XZFJ_a机械故障未能闭合，导致未能及时反馈遥控分返校信号；②The DSP control remote sub-selection relay XZFJ circuit is abnormal, and the remote control sub-selection relay XZFJ is not controlled successfully, or the mechanical failure of the normally open contact XZFJ_a of the remote sub-selection relay fails to close, resulting in the failure to timely feedback the remote control sub-selection return signal;
③遥控分选择继电器的常闭接点XZHJ_b异常打开，导致未能及时反馈遥控分返校信号。③ The normally closed contact XZHJ_b of the remote control point selection relay is abnormally opened, resulting in failure to timely feedback the remote control point return to school signal.
所述步骤2)中，只有在遥控分选择继电器XZFJ、遥控合选择继电器XZHJ的线圈控制回路、接点动作状况均全部正确的情况下，才会反馈返校正确信号。In the step 2), only when the coil control loops of the remote control selector relay XZFJ and the remote control selector relay XZHJ are all correct, and the contact action conditions are all correct, will the return-to-school correct signal be fed back.
本发明的有益效果是：The beneficial effects of the present invention are:
本发明提出的多级控制配电终端防误动遥控回路，能够在对配电终端的遥控操作过程中，实现遥控分闸和遥控合闸回路的硬件互锁、避免任何情况下遥控分闸和遥控合闸同时出口的可能性，特别是能够有效防止任一单一器件错误导致的的遥控出口错误。The multi-level control power distribution terminal anti-misoperation remote control circuit proposed by the present invention can realize the hardware interlock of the remote control opening and remote closing circuits during the remote control operation of the power distribution terminal, and avoid remote control opening and closing under any circumstances. The possibility of remote control closing and simultaneous exit, in particular, can effectively prevent remote control exit errors caused by any single device error.
通过本发明，能够实现以下效果：Through the present invention, the following effects can be achieved:
①通过XZFJ_a常开接点与XZHJ_b常闭接点串接控制遥控分执行继电器YKFJ的电源端，能够在遥控合闸选择继电器DSP控制回路错误接通、或XZHJ机械故障导致接点状态异常时，有效断开遥控分执行继电器控制回路，实现对遥控分执行继电器控制回路的硬件闭锁。①Through the serial connection of XZFJ_a normally open contact and XZHJ_b normally closed contact to control the power supply terminal of the remote control sub-execution relay YKFJ, it can be effectively disconnected when the remote control closing selection relay DSP control circuit is wrongly connected, or when XZHJ mechanical failure causes the contact state to be abnormal The remote control sub-execution relay control loop realizes the hardware locking of the remote control sub-execution relay control loop.
②通过XZFJ_a常开接点与XZHJ_b常闭接点串接控制遥控分执行继电器YKFJ的电源端，保证在遥控合闸选择继电器DSP控制回路错误接通、或XZHJ机械故障导致接点状态异常时，能够有效断开遥控分返校信号，不会反馈有效的遥控分返校信号，从而避免主机错误下发遥控分执行命令。②Through the serial connection of XZFJ_a normally open contact and XZHJ_b normally closed contact to control the power supply end of the remote control sub-execution relay YKFJ, to ensure that when the remote control closing selection relay DSP control circuit is wrongly connected, or XZHJ mechanical failure causes the contact state to be abnormal, it can be effectively disconnected. Turn on the remote control point back-to-school signal, and no effective remote control point back-to-school signal will be fed back, so as to prevent the host from sending the remote control point execution command by mistake.
③通过XZHJ_a常开接点与XZFJ_b的常闭接点串接控制遥控合执行继电器YKHJ的电源端，能够在遥控分闸选择继电器DSP控制回路错误接通、或XZFJ机械故障导致接点异常时，能够有效断开遥控合执行继电器控制回路，实现对遥控合执行继电器控制回路的硬件闭锁。③Through the serial connection of the normally open contact of XZHJ_a and the normally closed contact of XZFJ_b to control the power supply terminal of the remote closing executive relay YKHJ, it can effectively disconnect the relay when the remote control opening selection relay DSP control circuit is wrongly connected, or the XZFJ mechanical failure causes the contact to be abnormal. The control circuit of the remote control and closing execution relay is opened to realize the hardware locking of the control circuit of the remote closing and closing execution relay.
④通过XZHJ_a常开接点与XZFJ_b的常闭接点串接控制遥控合执行继电器YKHJ的电源端，保证在遥控分闸选择继电器DSP控制回路错误接通、或XZFJ机械故障导致接点状态异常时，能够有效断开遥控合返校信号，不会反馈有效的遥控合返校信号，从而避免主机错误下发遥控合执行命令。④Through the serial connection of the normally open contact of XZHJ_a and the normally closed contact of XZFJ_b, the power supply end of the remote closing executive relay YKHJ is controlled to ensure that when the remote control opening selection relay DSP control circuit is wrongly connected, or XZFJ mechanical failure causes the contact state to be abnormal, it can be effectively Disconnect the remote control and return to school signal, and no effective remote control and return to school signal will be fed back, so as to prevent the host from sending remote control and execution commands by mistake.
⑤通过遥控执行总控继电器的常开接点ZKJ_a控制常开接点YKFJ_a出口和常开接点YKHJ_a出口的操作电源公共端，保证YKFJ和YKHJ的DSP控制回路错误接通时、或者YKFJ和YKHJ的常开接点故障错误闭合时均不会导致最终遥控出口的长期保持错误带电状态。⑤Use the normally open contact ZKJ_a of the master control relay to control the common terminal of the operating power supply at the outlet of the normally open contact YKFJ_a and the outlet of the normally open contact YKHJ_a by remote control, to ensure that when the DSP control loop of YKFJ and YKHJ is wrongly connected, or the normally open contact of YKFJ and YKHJ When the contact fault is wrongly closed, it will not cause the long-term maintenance of the wrong electrified state of the final remote control outlet.
附图说明Description of drawings
图1为现有配网终端中的遥控回路示意图一；Figure 1 is a schematic diagram of a remote control circuit in an existing distribution network terminal;
图2为现有配网终端中的遥控回路示意图二；Fig. 2 is a schematic diagram 2 of a remote control circuit in an existing distribution network terminal;
图3为本发明带接点返校的多级控制配电终端防误动遥控回路示意图；Fig. 3 is a schematic diagram of the anti-misoperation remote control circuit of the multi-level control power distribution terminal with contact back-to-school of the present invention;
图4为本发明遥控合闸选择继电器常开接点与遥控分闸选择继电器常闭接点串接回路异常接通示意图；Fig. 4 is a schematic diagram of abnormal connection of the normally open contact of the remote control closing selection relay and the normally closed contact of the remote control opening selection relay of the present invention;
图5为本发明继电器XZFJ未成功动作或者常开接点XZFJ_a机械故障示意图；Fig. 5 is a schematic diagram of an unsuccessful action of the relay XZFJ of the present invention or a mechanical failure of the normally open contact XZFJ_a;
图6为本发明常闭接点XZHJ_b异常打开示意图；Fig. 6 is a schematic diagram of the abnormal opening of the normally closed contact XZHJ_b of the present invention;
图7为本发明返校正确信号示意图；Fig. 7 is a schematic diagram of the correct signal for returning to school in the present invention;
图8为本发明对外接线端子的遥控分闸与操作电源接通、实现遥控分闸出口示意图。Fig. 8 is a schematic diagram of the remote control opening of the external connection terminal and the connection of the operating power supply to realize the remote control opening and exit of the present invention.
具体实施方式：detailed description:
下面结合附图与实施例对本发明做进一步说明：Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
一种带接点返校的多级控制配电终端防误动遥控回路，如图3所示，包括：遥控分选择继电器XZFJ、遥控合选择继电器XZHJ和遥控执行总控继电器ZKJ；A multi-level control power distribution terminal anti-misoperation remote control circuit with contact back-to-school, as shown in Figure 3, including: remote control sub-selection relay XZFJ, remote control combination selection relay XZHJ and remote execution master control relay ZKJ;
遥控分选择继电器的常开接点XZFJ_a、遥控合选择继电器的常闭接点XZHJ_b以及遥控分执行继电器YKFJ依次串联连接；所述遥控合选择继电器的常开接点XZHJ_a、遥控分选择继电器常闭接点XZFJ_b以及遥控合执行继电器YKHJ依次串联连接；遥控分选择继电器的常开接点XZFJ_a和遥控合选择继电器的常闭接点XZHJ_b串接后的信号传送给DSP作为遥控分选择命令的返校信号；遥控合选择继电器的常开接点XZHJ_a和遥控分选择继电器常闭接点XZFJ_b串接后的信号传送给DSP作为遥控合选择命令的返校信号；The normally open contact XZFJ_a of the remote control sub-selection relay, the normally closed contact XZHJ_b of the remote control sub-selection relay and the remote control sub-execution relay YKFJ are sequentially connected in series; the normally open contact XZHJ_a of the remote control sub-selection relay, the normally closed contact XZFJ_b of the remote control sub-selection relay The remote close execution relay YKHJ is connected in series in sequence; the normally open contact XZFJ_a of the remote control subselection relay and the normally closed contact XZHJ_b of the remote close selection relay are connected in series, and the signal sent to the DSP is used as the return signal of the remote control subselection command; the remote control close selection relay The signal after the serial connection of the normally open contact XZHJ_a of the remote control selection relay and the normally closed contact XZFJ_b of the remote control subselection relay is sent to the DSP as the return signal of the remote control selection command;
遥控分选择继电器XZFJ、遥控合选择继电器XZHJ、遥控执行总控继电器ZKJ、遥控分执行继电器和遥控合执行继电器均由DSP控制信号控制。The remote control sub-selection relay XZFJ, the remote control combination selection relay XZHJ, the remote control execution master control relay ZKJ, the remote control sub-execution relay and the remote control combination execution relay are all controlled by DSP control signals.
本发明带接点返校的多级控制配电终端防误动遥控回路具有以下特征：The multi-level control power distribution terminal anti-maloperation remote control circuit with contact back-to-school of the present invention has the following characteristics:
①设计有两个遥控选择继电器：遥控分选择继电器(XZFJ)和遥控合选择继电器(XZHJ)。① There are two remote control selection relays: remote control sub-selection relay (XZFJ) and remote control selection relay (XZHJ).
②遥控分选择继电器(XZFJ)和遥控合选择继电器(XZHJ)均须至少具有一付a型常开和一付b型常闭接点接点、或者至少两付c型转换接点。②Remote control sub-selection relay (XZFJ) and remote control selection relay (XZHJ) must have at least one pair of a-type normally open and one pair of b-type normally closed contacts, or at least two pairs of c-type conversion contacts.
③XZFJ的常开接点(XZFJ_a)与XZHJ的常闭接点(XZHJ_b)串接，用于控制遥控分执行继电器(YKFJ)的电源端，DSP同时采集该串接接点信号作为遥控分选择命令的返校信号。③The normally open contact (XZFJ_a) of XZFJ is connected in series with the normally closed contact (XZHJ_b) of XZHJ, which is used to control the power supply terminal of the remote execution relay (YKFJ). Signal.
④XZHJ的常开接点(XZHJ_a)与XZFJ的常闭接点(XZFJ_b)串接，用于控制遥控合执行继电器(YKHJ)的电源端，DSP同时采集该串接接点信号作为遥控合选择命令的返校信号。④The normally open contact (XZHJ_a) of XZHJ is connected in series with the normally closed contact (XZFJ_b) of XZFJ, which is used to control the power supply terminal of the remote close execution relay (YKHJ), and the DSP collects the signal of the series connected contact at the same time as the return school of the remote close selection command Signal.
⑤设计有一个遥控执行总控继电器(ZKJ)，遥控执行总控继电器(ZKJ)至少具有一付a型常开接点。⑤ A remote executive master control relay (ZKJ) is designed, and the remote executive master control relay (ZKJ) has at least one type a normally open contact.
⑥遥控执行总控继电器(ZKJ)的常开接点(ZKJ_a)控制YKFJ常开接点(YKFJ_a)出口和遥控合常开接点(YKHJ_a)出口的操作电源公共端。⑥The normally open contact (ZKJ_a) of the remote execution master control relay (ZKJ) controls the common terminal of the operating power supply for the outlet of the YKFJ normally open contact (YKFJ_a) and the remote control close normally open contact (YKHJ_a).
本发明带接点返校的多级控制配电终端防误动遥控回路的控制方法具体如下(以遥控分闸为例，遥控合闸类似)：The control method of the anti-misoperation remote control loop of the multi-level control power distribution terminal with contact back-to-school of the present invention is specifically as follows (taking the remote control opening as an example, the remote control closing is similar):
1)遥控分闸选择、返校错误：主机端软件向配电终端下发遥控分闸选择命令，配电终端收到遥控分闸选择命令后，DSP控制遥控分选择继电器(XZFJ)动作。如果出现以下任一状况，均认为遥控返校错误，遥控过程被终止：1) Errors in remote control opening selection and return to school: The software on the host computer sends a remote control opening selection command to the power distribution terminal. After the power distribution terminal receives the remote control opening selection command, the DSP controls the remote control switching relay (XZFJ) to act. If any of the following situations occurs, it is considered that the remote control is wrong, and the remote control process is terminated:
①XZHJ_a常开接点与XZFJ_b的常闭接点串接回路异常接通，存在遥控合返校信号，如图4所示；①The circuit connected in series between the normally open contact of XZHJ_a and the normally closed contact of XZFJ_b is abnormally connected, and there is a signal of remote closing and returning to school, as shown in Figure 4;
②DSP控制XZFJ回路出现异常未成功控制XZFJ继电器动作、或者XZFJ_a常开接点机械故障未能闭合，导致未能及时反馈遥控分返校信号，如图5所示；②The DSP control XZFJ circuit is abnormal and fails to control the action of the XZFJ relay, or the XZFJ_a normally open contact mechanical failure fails to close, resulting in the failure to timely feedback the remote control point back-to-school signal, as shown in Figure 5;
③XZHJ_b常闭接点异常打开，导致未能及时反馈遥控分返校信号，如图6所示。③The normally closed contact of XZHJ_b is abnormally opened, resulting in failure to timely feedback the remote control point back-to-school signal, as shown in Figure 6.
2)遥控分闸选择、返校正确：主机端软件向配电终端下发遥控分闸选择命令，配电终端收到遥控分闸选择命令后，DSP控制遥控分选择继电器(XZFJ)线圈动作，XZFJ_a常开接点闭合、XZFJ_b常闭接点打开，而此时由于遥控合选择继电器(XZHJ)线圈未被驱动，XZHJ_a常开接点打开、XZHJ_b常闭接点闭合。这样XZHJ_a与XZFJ_b串接回路中两接点全部打开，遥控合执行继电器(YKHJ)的电源端断开,不存在错误的遥控合闸返校信号。XZFJ_a与XZHJ_b串接回路中两接点全部接通，遥控分执行继电器(YKFJ)的电源端接通，遥控遥控分闸选择命令返校信号有效。从而保证只有在XZFJ、XZHJ的线圈控制回路、接点动作状况均全部正确的情况下，才会反馈返校正确信号，如图7所示。2) The remote control opening selection and return to school are correct: the host software sends the remote control opening selection command to the power distribution terminal. After the power distribution terminal receives the remote control opening selection command, the DSP controls the remote control sub-selection relay (XZFJ) coil action, XZFJ_a normally open contact is closed, XZFJ_b normally closed contact is open, and at this time, because the coil of the remote control selection relay (XZHJ) is not driven, XZHJ_a normally open contact is opened, and XZHJ_b normally closed contact is closed. In this way, the two contacts in the series connection circuit of XZHJ_a and XZFJ_b are all opened, and the power terminal of the remote control closing execution relay (YKHJ) is disconnected, so there is no wrong remote control closing return signal. The two contacts in the series connection circuit of XZFJ_a and XZHJ_b are all connected, the power terminal of the remote control sub-execution relay (YKFJ) is connected, and the remote control sub-brake selection command return-to-school signal is valid. This ensures that only when the coil control loops and contact action conditions of XZFJ and XZHJ are all correct, will the correct signal for back-to-calibration be fed back, as shown in Figure 7.
3)遥控返校正确后，遥控执行：当主机接收到遥控返校正确信息后，下发遥控分执行命令。配电终端收到遥控分闸执行命令后，DSP继续控制遥控分执行继电器(YKFJ)和遥控执行总控继电器(ZKJ)线圈动作，YKFJ_a与ZKJ_a常开接点闭合，只有当这两个常开接点全部有效闭合时，对外接线端子的遥控分闸才会与操作电源接通、最终实现遥控分闸出口，如图8所示。3) After the remote control back-to-school is correct, remote execution: When the host receives the correct information of the remote control back-to-school, it sends a remote control sub-execution command. After the power distribution terminal receives the remote control opening execution command, the DSP continues to control the coil action of the remote control branch execution relay (YKFJ) and the remote control execution master control relay (ZKJ), and the normally open contacts of YKFJ_a and ZKJ_a are closed. When all are effectively closed, the remote control opening of the external terminal will be connected to the operating power supply, and finally the remote control opening and exit will be realized, as shown in Figure 8.
上述虽然结合附图对本发明的具体实施方式进行了描述，但并非对本发明保护范围的限制，所属领域技术人员应该明白，在本发明的技术方案的基础上，本领域技术人员不需要付出创造性劳动即可做出的各种修改或变形仍在本发明的保护范围以内。Although the specific implementation of the present invention has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, those skilled in the art do not need to pay creative work Various modifications or variations that can be made are still within the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610067088.8ACN105471113B (en) | 2016-01-29 | 2016-01-29 | The Multistage Control distribution terminal faulty action preventing remote control circuit and method returned to school with contact |
| Application Number | Priority Date | Filing Date | Title |
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| CN201610067088.8ACN105471113B (en) | 2016-01-29 | 2016-01-29 | The Multistage Control distribution terminal faulty action preventing remote control circuit and method returned to school with contact |
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| CN105471113A CN105471113A (en) | 2016-04-06 |
| CN105471113Btrue CN105471113B (en) | 2017-12-05 |
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| CN201610067088.8AActiveCN105471113B (en) | 2016-01-29 | 2016-01-29 | The Multistage Control distribution terminal faulty action preventing remote control circuit and method returned to school with contact |
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