Power-failure-free online transformation method and system for conventional transformer substation measurement and control device

Abstract

The method comprises the following steps: when an old measurement and control device of the conventional transformer substation needs to be transformed into a new measurement and control device, connecting a temporary measurement and control device to primary equipment and secondary equipment of the conventional transformer substation in parallel through a signal loop online transition module; a temporary remote signaling signal, a temporary telemetering signal and a temporary remote control signal of the temporary measurement and control device are checked through the mirror image server; when the temporary remote signaling signal, the temporary telemetering signal and the temporary remote control signal are checked to be correct, the temporary measurement and control device is connected to a station control layer of the conventional transformer substation; removing the old measurement and control device, and installing a new measurement and control device; and after the new measurement and control device is installed and the new remote signaling signal, the new telemetering signal and the new remote control signal are checked to be correct, the connection of the temporary measurement and control device is disconnected through the signal loop online transition module. The measurement and control device can be transformed without power failure.

Description

Technical Field

[0001] The present invention belongs to the technical field of power grid system automation, and in particular relates to a method and system for online transformation of a conventional substation measurement and control device without power outage. Background Art

[0002] As the source acquisition equipment of the conventional substation integrated automation system, the measurement and control device is mainly used to measure and control the operating status and parameters of the equipment. Through the secondary circuit access and control system, the operating data of the equipment is monitored in real time, and adjustments and controls are made according to the preset parameters to ensure the normal operation of the primary equipment of the power grid and the safe and stable operation of the equipment and system.

[0003] Because the internal components of the measurement and control device are relatively precise and the wiring is complex, the equipment is very likely to age after long-term continuous operation, threatening the safety of the power grid. Therefore, on the one hand, the measurement and control device must be inspected regularly, and on the other hand, after the measurement and control device has been in operation for 12 to 15 years, it must be replaced according to the actual operation situation.

[0004] State Grid Corporation has hundreds of substations with integrated automation system transformation every year. At present, the domestic integrated automation transformation generally adopts interval power outage, voltage level power outage, and station-wide power outage transformation. The three types of power outage transformation all affect the reliable power supply to varying degrees, the transformation cycle is long, the power outage plan coordination is difficult, the power consumption of production and life is affected, and the over-service equipment has the risk of safe operation of the power grid. The interval power outage also has the risk of long construction period, accidental contact and misoperation of live equipment and other operating intervals; when the traditional conventional substation measurement and control device is replaced, since all the secondary circuit signals are re-constructed, the signal configuration involves measurement and control, substation monitoring background, and substation telecontrol device, and it is necessary to check the telesignaling, telemetry, and remote control signals of this interval many times. Each signal requires the secondary circuit maintenance personnel to trigger the signal at the source end, involving the dispatching master station acceptance personnel, substation background acceptance personnel, 6 secondary personnel, and more than 10 construction and installation personnel. Therefore, the transformation of the existing conventional substation measurement and control devices not only affects the power supply, but also the workload of on-site safety construction control and signal verification is very large. Summary of the invention

[0005] In order to make up for the defects of the prior art, the present invention provides a method and system for online transformation of a conventional substation measurement and control device without power outage.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: In the first aspect, a method for online transformation of a conventional substation measurement and control device without power outage is provided, which is applied to an online transformation system for a conventional substation measurement and control device without power outage. The online transformation system for a conventional substation measurement and control device without power outage includes an equipment remote control simulation module, a mirror server, an offline networking switch, a multi-purpose display module, an online transition measurement and control module, and a signal loop online transition module. The method for online transformation of a conventional substation measurement and control device without power outage includes: When the old measurement and control device of a conventional substation needs to be transformed into a new measurement and control device, the temporary measurement and control device is connected to the primary equipment and secondary equipment of the conventional substation through the signal loop online transition module; Verify the temporary telesignaling signal, temporary telemetry signal and temporary remote control signal of the temporary measurement and control device through the mirror server; When the temporary telesignaling signal, temporary telemetering signal and temporary remote control signal are verified to be correct, the temporary measurement and control device shall be connected to the station control layer of the conventional substation; Remove the old measurement and control device and install a new one; When the new measurement and control device is installed, the new telesignal signal, new telemetering signal and new remote control signal of the new measurement and control device are checked through the mirror server; When the new telesignal signal, new telemetering signal and new remote control signal are verified to be correct, the connection of the temporary measurement and control device is disconnected through the signal loop online transition module.

[0007] Furthermore, the signal loop online transition module includes a telesignal loop online transition terminal block, a telemetering loop online transition terminal block and a remote control loop online transition terminal block; the outer side of the terminal block of the telesignal loop online transition terminal block is connected to the external cable of the telesignaling loop, and the inner side of the terminal block is connected to the telesignaling loop wiring of the old measurement and control device; the outer side of the terminal block of the telemetering loop online transition terminal block is connected to the external cable of the telemetering loop, and the inner side of the terminal block is connected to the telemetering loop wiring of the old measurement and control device; the outer side of the terminal block of the remote control loop online transition terminal block is connected to the external cable of the remote control loop, and the inner side of the terminal block is connected to the remote control loop wiring of the old measurement and control device, The temporary measurement and control device is connected to the primary and secondary equipment of the conventional substation through the signal loop online transition module, including: Connect the remote signal circuit wiring of the temporary measurement and control device to the outside of the terminal block of the online transition terminal block of the remote signal circuit, so that the remote signal circuit of the temporary measurement and control device is connected in parallel with the remote signal circuits of the primary equipment and secondary equipment of the conventional substation; Connect the telemetry circuit wiring of the temporary measurement and control device to the outside of the terminal block of the telemetry circuit online transition terminal block, so that the telemetry circuit of the temporary measurement and control device is connected in parallel with the telemetry circuits of the primary equipment and secondary equipment of the conventional substation; Connect the remote control circuit wiring of the temporary measurement and control device to the outside of the terminal block of the online transition terminal block of the remote signal circuit, so that the remote control circuit of the temporary measurement and control device is connected in parallel with the remote control circuits of the primary and secondary equipment of the conventional substation.

[0008] Furthermore, the temporary telesignaling signal, temporary telemetry signal and temporary remote control signal of the temporary measurement and control device are checked through the mirror server, including: Through the mirror server simulation, simulated telesignaling signal, simulated telemetry signal and simulated remote control signal are obtained; Obtaining temporary telesignaling signals, temporary telemetering signals and temporary remote control signals of the temporary measurement and control device through the telesignaling circuit, telemetering circuit and remote control circuit respectively; Compare the analog telesignaling signal with the temporary telesignaling signal, the analog telemetry signal with the temporary telemetry signal, and the analog remote control signal with the temporary remote control signal to see if they are consistent; If they are consistent, it is determined that the temporary telesignaling signal, temporary telemetry signal and temporary remote control signal of the temporary measurement and control device are correct; If at least one signal is inconsistent, it is determined that the temporary telesignaling signal, temporary telemetry signal and temporary remote control signal of the temporary measurement and control device are incorrectly checked.

[0009] Furthermore, the old measurement and control device is removed and a new measurement and control device is installed, including: Disconnect the old telemetering circuit wiring of the old measurement and control device from the inner side of the terminal block of the online transition terminal block of the telemetering circuit; disconnect the old telemetering circuit wiring of the old measurement and control device from the inner side of the terminal block of the online transition terminal block of the telemetering circuit; disconnect the old remote control circuit wiring of the old measurement and control device from the inner side of the terminal block of the online transition terminal block of the remote control circuit; Connect the telesignaling circuit wiring of the new measurement and control device to the inner side of the terminal block of the telesignaling circuit online transition terminal block; connect the telemetry circuit wiring of the new measurement and control device to the inner side of the terminal block of the telemetry circuit online transition terminal block; connect the remote control circuit wiring of the new measurement and control device to the inner side of the terminal block of the remote control circuit online transition terminal block.

[0010] Furthermore, the online transition terminal block of the telesignaling circuit includes a common terminal interface and a single-point input interface. The external cables of the telesignaling circuits of the primary equipment and the secondary equipment of the conventional substation are connected to the common terminal interface and the single-point input interface on the outside of the terminal block of the online transition terminal block of the telesignaling circuit. The telesignaling circuit wiring of the old measurement and control device is connected to the common terminal interface and the single-point input interface on the inside of the terminal block. Connect the remote signal circuit wiring of the temporary measurement and control device to the outside of the terminal block of the online transition terminal block of the remote signal circuit, including: Short-circuit the remote signal circuit wiring of the temporary measurement and control device to the common terminal interface and single-point input interface outside the terminal block of the online transition terminal block of the remote signal circuit; make the remote signal circuit of the temporary measurement and control device parallel with the remote signal circuit of the primary equipment and secondary equipment of the conventional substation; Before dismantling the old measurement and control device, it also includes: The middle connecting piece between the inner side of the terminal block and the outer side of the terminal block of the online transition terminal block of the control remote signal circuit is disconnected; After the new measurement and control device is installed, it also includes: The middle connecting piece between the inner side of the terminal block and the outer side of the terminal block of the online transition terminal block of the control remote signal circuit is closed.

[0011] Furthermore, the telemetry loop online transition terminal block includes current terminals 1 to current terminals 6 and voltage terminals 1 to voltage terminals 6. The current ends of the telemetry loop external cables of the primary equipment and secondary equipment of the conventional substation are respectively connected to the current terminals 1 to current terminals 4 outside the terminal block of the telemetry loop online transition terminal block, and the voltage ends of the telemetry loop external cables are respectively connected to the voltage terminals 1 to voltage terminals 4 outside the terminal block. The telemetry loop wiring of the old measurement and control device is connected to the current terminals 1 to current terminals 6 and the voltage terminals 1 to voltage terminals 6 inside the terminal block. Connect the telemetry loop wiring of the temporary measurement and control device to the outside of the terminal block of the telemetry loop online transition terminal block, including: Connect the current wiring of the telemetry circuit of the temporary measurement and control device to the current terminals 1 to 6 on the outside of the terminal block of the online transition terminal block of the telemetry circuit, and connect the voltage wiring to the voltage terminals 1 to 6 on the outside of the terminal block of the online transition terminal block of the telemetry circuit; so that the telemetry circuit of the temporary measurement and control device is connected in parallel with the telemetry circuits of the primary equipment and secondary equipment of the conventional substation; Control current terminal 4 to current terminal 6 to be short-circuited, and voltage terminal 4 to voltage terminal 6 to be short-circuited; Before dismantling the old measurement and control device, it also includes: Disconnect the middle connecting piece between the current terminal 1 to the current terminal 6 on the inside and outside of the terminal block, and disconnect the middle connecting piece between the voltage terminal 1 to the voltage terminal 6 on the inside and outside of the terminal block; After the new measurement and control device is installed, and the new telesignal signal, new telemetering signal and new remote control signal are verified to be correct, it also includes: Close the middle connecting piece between the current terminal 1 to the current terminal 3 and the voltage terminal 1 to the voltage terminal 3 on the inside and outside of the terminal block.

[0012] Furthermore, the remote control loop online transition terminal block includes a positive power terminal, a closing loop negative power terminal, a tripping loop negative power terminal and other ports. The remote control loop external cable of the primary equipment and secondary equipment of the conventional substation is connected to the positive power terminal, the closing loop negative power terminal, the tripping loop negative power terminal and other ports on the outside of the terminal block of the remote control loop online transition terminal block. The remote signaling circuit wiring of the old measurement and control device is connected to the positive power terminal, the closing loop negative power terminal, the tripping loop negative power terminal and other ports on the inside of the terminal block. The remote control circuit of the temporary measurement and control device includes the circuit breaker opening and closing remote control circuit, the disconnector remote control circuit and the grounding switch remote control circuit. Connect the remote control circuit wiring of the temporary measurement and control device to the outside of the terminal block of the remote control circuit online transition terminal block, including: Connect the wiring of the circuit breaker opening and closing remote control circuit to the positive terminal outside the terminal block of the remote control circuit online transition terminal block, the negative terminal of the closing circuit and the negative terminal of the tripping circuit, and connect the wiring of the disconnector remote control circuit and the grounding switch remote control circuit to other ports; make the remote control circuit of the temporary measurement and control device parallel with the remote control circuit of the primary equipment and secondary equipment of the conventional substation; Before dismantling the old measurement and control device, it also includes: Disconnect the middle connecting piece between the positive terminal inside and outside the terminal block, the negative terminal of the closing circuit, the negative terminal of the tripping circuit and other ports; After the new measurement and control device is installed, it also includes: Close the middle connecting piece between the positive terminal on the inside and outside of the terminal block, the negative terminal of the closing circuit, the negative terminal of the tripping circuit and other ports.

[0013] In the second aspect, a non-stop online transformation system for conventional substation measurement and control devices is provided, comprising: Equipment remote control simulation module, mirror server, offline networking switch, multi-purpose display module, online transition measurement and control module and signal loop online transition module; The online transition measurement and control module includes a temporary measurement and control device connection unit, a first signal checking unit, a measurement and control device online transformation unit and a second signal checking unit; The temporary measurement and control device connection unit is used to connect the temporary measurement and control device to the primary equipment and secondary equipment of the conventional substation through the signal loop online transition module when the old measurement and control device of the conventional substation needs to be transformed into a new measurement and control device; A first signal checking unit, used for checking the temporary telesignaling signal, temporary telemetry signal and temporary remote control signal of the temporary measurement and control device through the mirror server; The temporary measurement and control device connection unit is also used to connect the temporary measurement and control device to the station control layer of the conventional substation after the temporary telesignaling signal, temporary telemetering signal and temporary remote control signal are verified to be correct; The online transformation unit of the measurement and control device is used to dismantle the old measurement and control device and install the new one; The second signal checking unit is used to check the new telesignaling signal, the new telemetering signal and the new remote control signal of the new measurement and control device through the mirror server after the new measurement and control device is installed; The temporary measurement and control device connection unit is also used to disconnect the temporary measurement and control device through the signal loop online transition module after the new telesignal signal, the new telemetering signal and the new remote control signal are verified to be correct.

[0014] Furthermore, the conventional substation measurement and control device non-stop online transformation system also includes: Cabinet-style housing and universal wheels.

[0015] The beneficial effects achieved by the present invention are: When the old measurement and control device of a conventional substation needs to be transformed into a new measurement and control device, the temporary measurement and control device is connected to the primary equipment and secondary equipment of the conventional substation through the signal loop online transition module; the temporary telesignaling signal, temporary telemetering signal and temporary remote control signal of the temporary measurement and control device are checked through the mirror server; when the temporary telesignaling signal, temporary telemetering signal and temporary remote control signal are checked and confirmed to be correct, the temporary measurement and control device is connected to the station control layer of the conventional substation; the old measurement and control device is removed and a new measurement and control device is installed; when the new measurement and control device is installed, the new telesignaling signal, new telemetering signal and new remote control signal of the new measurement and control device are checked through the mirror server; when the new telesignaling signal, new telemetering signal and new remote control signal are checked and confirmed to be correct, the connection of the temporary measurement and control device is disconnected through the signal loop online transition module; by means of the temporary measurement and control device, in the process of transforming the old measurement and control device into the new measurement and control device, it is possible to achieve monitoring and protection without loss and without power outage; The existing configuration of the existing measurement and control device is fully utilized. Through mirroring, the external wiring of the terminal block can be kept unchanged, and the three remote signals can be checked. Therefore, when renovating the measurement and control device, there is no need to re-lay long cables, and there is no need to repeatedly check multiple channel signals, which reduces the signal checking amount and improves the efficiency of the renovation process. The movable cabinet-type equipment meets the requirements of small size and convenient mobile operation, and meets the requirements of non-stop transformation of measurement and control devices in different substations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a framework diagram of the non-stop online transformation system of the conventional substation measurement and control device of the present invention; Figure 2 It is a flow chart of the method for online transformation of a conventional substation measurement and control device without power outage according to the present invention; Figure 3 It is the principle diagram of online transition of the remote signaling circuit of the present invention; Figure 4It is the principle diagram of online transition of telemetry loop of the present invention; Figure 5 It is the principle diagram of online transition of the remote control loop of the present invention; Figure 6 It is a structural diagram of the non-stop online transformation system of the conventional substation measurement and control device of the present invention. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0018] like Figure 1 The figure shows a framework diagram of the non-stop online transformation system of the conventional substation measurement and control device of the present invention, including a device remote control simulation module 101, a mirror server 102, an offline networking switch 103, a multi-purpose display module 104, an online transition measurement and control module 105, a signal loop online transition module 106, a cabinet housing 107 and a universal wheel 108; The equipment remote control simulation module 101 is used as a conventional substation equipment model and signal simulation device to build a conventional substation model signal simulation environment, simulate the remote control of the equipment in the transformation interval, and simulate the remote control of the transformation interval switch and knife switch command acceptance of the simulation monitoring system according to the monitoring information collection specification, so as to avoid the operation system remote control test from malfunctioning and changing the operation mode of the power grid; Mirror server 102 is a mirror substation monitoring system server. Mirror server 102 can achieve: temporary monitoring of primary and secondary equipment in this interval during the implementation of the transformation interval; verification of the correctness of the new measurement and control secondary circuit; no need for dispatch acceptance, each dispatch saves 4 signal acceptances (each time for telesignaling, telemetry, and remote control 300 signal circuits), saving a total of 2,400 signals, 2 days of work, and 3 signal acceptance personnel (2 at the station end and 1 at the dispatch end); The offline networking switch 103 is used for online transformation system networking of the measurement and control device without power outage, forming a complete set of comprehensive system maintenance operation platform; The multi-purpose display module 104 is used to realize temporary display of the mirror server 102 transformation interval; monitoring signal simulation system display (simulation of a device to display the remote control verification reception status); The online transition measurement and control module 105 is used for temporary access of primary and secondary equipment during the transformation period, so that the monitoring function is not lost during the transformation interval. The advantages are: reducing the workload, avoiding the need to re-lay cables (saving more than 500 meters of secondary cables and 5 construction workers), and shortening the construction period from the current 5-day power outage maintenance to 2 days without power outage maintenance (220kV cable interval); The signal loop online transition module 106 is specifically an online transition terminal block corresponding to the loop of the three remote signals.

[0019] Based on the above Figure 1 The conventional substation measurement and control device non-stop online transformation system shown in the figure is as follows Figure 2 As shown, an embodiment of the present invention provides a method for online transformation of a conventional substation measurement and control device without power outage, comprising: 201. When the old measurement and control device of a conventional substation needs to be transformed into a new measurement and control device, the temporary measurement and control device is connected to the primary equipment and secondary equipment of the conventional substation through the signal loop online transition module; In this embodiment, the signal loop online transition module includes a telesignal loop online transition terminal block, a telemetering loop online transition terminal block and a remote control loop online transition terminal block; the outer side of the terminal block of the telesignal loop online transition terminal block is connected to the external cable of the telesignaling loop, and the inner side of the terminal block is connected to the telesignaling loop wiring of the old measurement and control device; the outer side of the terminal block of the telemetering loop online transition terminal block is connected to the external cable of the telemetering loop, and the inner side of the terminal block is connected to the telemetering loop wiring of the old measurement and control device; the outer side of the terminal block of the remote control loop online transition terminal block is connected to the external cable of the remote control loop, and the inner side of the terminal block is connected to the remote control loop wiring of the old measurement and control device; In order to achieve no power outage during the transformation process, it is necessary to introduce temporary measurement and control equipment for transition; Connect the remote signal circuit wiring of the temporary measurement and control device to the outside of the terminal block of the online transition terminal block of the remote signal circuit, so that the remote signal circuit of the temporary measurement and control device is connected in parallel with the remote signal circuits of the primary equipment and secondary equipment of the conventional substation; Connect the telemetry circuit wiring of the temporary measurement and control device to the outside of the terminal block of the telemetry circuit online transition terminal block, so that the telemetry circuit of the temporary measurement and control device is connected in parallel with the telemetry circuits of the primary equipment and secondary equipment of the conventional substation; Connect the remote control circuit wiring of the temporary measurement and control device to the outside of the terminal block of the online transition terminal block of the remote signal circuit, so that the remote control circuit of the temporary measurement and control device is connected in parallel with the remote control circuits of the primary and secondary equipment of the conventional substation.

[0020] 202, verifying the temporary telesignaling signal, temporary telemetry signal and temporary remote control signal of the temporary measurement and control device through the mirror server; In this embodiment, simulated telesignaling signals, simulated telemetry signals and simulated remote control signals are obtained through simulation by a mirror server; temporary telesignaling signals, temporary telemetry signals and temporary remote control signals of a temporary measurement and control device are obtained through the telesignaling loop, telemetry loop and remote control loop respectively; the simulated telesignaling signals and temporary telesignaling signals, the simulated telemetry signals and temporary telemetry signals, the simulated remote control signals and temporary remote control signals are compared respectively for consistency; if they are all consistent, it is determined that the temporary telesignaling signals, temporary telemetry signals and temporary remote control signals of the temporary measurement and control device are correctly checked; if at least one signal is inconsistent, it is determined that the temporary telesignaling signals, temporary telemetry signals and temporary remote control signals of the temporary measurement and control device are incorrectly checked.

[0021] 203. When the temporary telesignaling signal, temporary telemetering signal and temporary remote control signal are verified to be correct, the temporary measurement and control device is connected to the station control layer of the conventional substation; After the temporary measurement and control device is connected to the station control layer of the conventional substation, it can replace the function of the old measurement and control device so that the old measurement and control device can be dismantled.

[0022] 204, dismantle the old measurement and control device and install a new measurement and control device; In this embodiment, the connection between the telesignaling circuit wiring of the old measurement and control device and the inner side of the terminal block of the telesignaling circuit online transition terminal block is disconnected; the connection between the telemetry circuit wiring of the old measurement and control device and the inner side of the terminal block of the telemetry circuit online transition terminal block is disconnected; the connection between the remote control circuit wiring of the old measurement and control device and the inner side of the terminal block of the remote control circuit online transition terminal block is disconnected; the old measurement and control device is taken out to complete the dismantling work; Place the new measurement and control device at the location of the old measurement and control device, and then connect the telesignaling circuit wiring of the new measurement and control device to the inner side of the terminal block of the telesignaling circuit online transition terminal block; connect the telemetry circuit wiring of the new measurement and control device to the inner side of the terminal block of the telemetry circuit online transition terminal block; connect the remote control circuit wiring of the new measurement and control device to the inner side of the terminal block of the remote control circuit online transition terminal block.

[0023] 205, after the new measurement and control device is installed, the new telesignaling signal, the new telemetering signal and the new remote control signal of the new measurement and control device are checked through the mirror server; 206. When the new telesignaling signal, the new telemetering signal and the new remote control signal are verified to be correct, the connection of the temporary measurement and control device is disconnected through the signal loop online transition module.

[0024] In this embodiment, after the new telesignaling signal, the new telemetering signal and the new remote control signal are verified to be correct, it indicates that the transformation work has been completed and the temporary measurement and control device is no longer needed. The connection between the temporary measurement and control device and the terminal block of the signal loop online transition module can be disconnected.

[0025] In the above Figure 2 In the embodiment shown, the connection method of the temporary measurement and control device and the telesignaling circuit online transition terminal block, telemetry circuit online transition terminal block and remote control circuit online transition terminal block of the signal circuit online transition module during transition is respectively described through the following embodiments.

[0026] like Figure 3The figure shows the schematic diagram of the online transition of the remote signal loop. The online transition terminal block of the remote signal loop includes the common terminal interface JCOM and the single-point input interface J01-J64. The external cables of the remote signal loop of the primary equipment and secondary equipment of the conventional substation are connected to the JCOM and J01-J64 on the outside of the terminal block of the online transition terminal block of the remote signal loop. The remote signal loop wiring of the old measurement and control device is connected to the JCOM and J01-J64 on the inside of the terminal block. Connect the remote signal circuit wiring of the temporary measurement and control device to the outside of the terminal block of the online transition terminal block of the remote signal circuit, including: Short-circuit the remote signal circuit wiring of the temporary measurement and control device to JCOM and J01-J64 on the outside of the terminal block of the online transition terminal block of the remote signal circuit; make the remote signal circuit of the temporary measurement and control device parallel with the remote signal circuit of the primary equipment and secondary equipment of the conventional substation; Before dismantling the old measurement and control device, disconnect the middle connecting piece between the inner side of the terminal block and the outer side of the terminal block of the online transition terminal block of the control remote signal circuit; After the new measurement and control device is installed, the middle connecting piece between the inner side and the outer side of the terminal block of the online transition terminal block of the control telesignaling circuit is closed; and the telesignaling circuit wiring of the temporary measurement and control device is disconnected from JCOM and J01-J64.

[0027] like Figure 4 The figure shows the principle diagram of online transition of telemetering loop. Using the anti-dropping Philip test line or online jumper, the online transition terminal block of telemetering loop includes 21ID: current terminal 1 to current terminal 6; 21UD: voltage terminal 1 to voltage terminal 6. The current terminal (I A , I B , I C , I N ) are connected to the current terminals 1 to 4 (A431, B431, C431, N431) on the outside of the online transition terminal block of the telemetry loop, and the voltage end (U A , U B , U C , U N ) are connected to the voltage terminals 1 to 4 (A720, B720, C720, N720) on the outside of the terminal block respectively, and the telemetry circuit wiring of the old measurement and control device is connected to the current terminals 1 to 6 and the voltage terminals 1 to 6 on the inside of the terminal block. Connect the telemetry loop wiring of the temporary measurement and control device to the outside of the terminal block of the telemetry loop online transition terminal block, including: Connect the current wiring of the telemetry circuit of the temporary measurement and control device (I A , I B , I C, I AN , I BN , I CN ) are connected to the current terminals 1 to 6 on the outside of the terminal block of the telemetry circuit online transition terminal block, and the voltage wiring (U A , U B , U C , U AN , U BN , U CN ) are respectively connected to the voltage terminals 1 to 6 on the outside of the terminal block of the online transition terminal block of the telemetry circuit; so that the telemetry circuit of the temporary measurement and control device is connected in parallel with the telemetry circuit of the primary equipment and secondary equipment of the conventional substation; Control current terminal 4 to current terminal 6 to be short-circuited, and voltage terminal 4 to voltage terminal 6 to be short-circuited; Before dismantling the old measurement and control device, disconnect the middle connecting piece between the current terminal 1 to the current terminal 6 on the inside and outside of the terminal block, and disconnect the middle connecting piece between the voltage terminal 1 to the voltage terminal 6 on the inside and outside of the terminal block; After the new measurement and control device is installed, and the new telesignal signal, new telemetering signal and new remote control signal are verified, close the middle connecting piece between the current terminal 1 to the current terminal 3 and the voltage terminal 1 to the voltage terminal 3 on the inside and outside of the terminal block. Restore the middle connecting piece of 21ID: 1~3 terminals, and then untie the wiring between the outside of the terminal block and the temporary measurement and control device.

[0028] like Figure 5 The diagram shows the principle diagram of online transition of the remote control circuit. The remote control circuit of the conventional station measurement and control device mainly includes three parts: the circuit breaker, the disconnector, and the earthing knife switch. For the circuit breaker opening and closing remote control circuit, it is necessary to untie the external cable to the circuit breaker operation box on the measurement and control panel, including the positive terminal 101, the closing circuit negative terminal 121, and the tripping circuit negative terminal 141; for the disconnector and earthing knife switch opening and closing remote control circuit, it is only necessary to open the control power supply and motor power supply quick disconnect switch; Other ports 1G01, 1G33, 1G03, 2G01, 2G33, 2G03, the external cables of the remote control circuit of the primary equipment and secondary equipment of the conventional substation are connected to the positive terminal 101, the negative terminal 121 of the closing circuit, the negative terminal 141 of the tripping circuit and other ports (1G01, 1G33, 1G03, 2G01, 2G33, 2G03) on the outside of the terminal block of the remote control circuit online transition terminal block, the remote signal circuit wiring of the old measurement and control device is connected to the positive terminal, the negative terminal of the closing circuit, the negative terminal of the tripping circuit and other ports on the inside of the terminal block, the remote control circuit of the temporary measurement and control device includes the remote control circuit of the circuit breaker, the remote control circuit of the disconnector and the remote control circuit of the grounding knife switch. Connect the remote control circuit wiring of the temporary measurement and control device's circuit breaker directly to the positive terminal 101, the negative terminal 121 of the closing circuit, and the negative terminal 141 of the tripping circuit in the safety device, and then connect the remote control circuit wiring of the temporary measurement and control device's disconnector and grounding knife switch to the external circuit through the substation signal circuit online jumper. After completing the transition circuit wiring, confirm that the remote control instructions and wiring of the temporary measurement and control and new measurement and control devices are correct by measuring the contact on and off outside the terminal block.

[0029] Based on the above description, the implementation principle and beneficial effects of the method for online transformation of conventional substation measurement and control devices without power outages of the present invention are as follows: When the old measurement and control device of a conventional substation needs to be transformed into a new measurement and control device, the temporary measurement and control device is connected to the primary equipment and secondary equipment of the conventional substation through the signal loop online transition module; the temporary telesignaling signal, temporary telemetry signal and temporary remote control signal of the temporary measurement and control device are checked through the mirror server; when the temporary telesignaling signal, temporary telemetry signal and temporary remote control signal are checked and confirmed to be correct, the temporary measurement and control device is connected to the station control layer of the conventional substation; the old measurement and control device is removed and the new measurement and control device is installed; when the new measurement and control device is installed, the new telesignaling signal, new telemetry signal and new remote control signal of the new measurement and control device are checked through the mirror server; when the new telesignaling signal, new telemetry signal and new remote control signal are checked and confirmed to be correct, the connection of the temporary measurement and control device is disconnected through the signal loop online transition module; by means of the temporary measurement and control device, in the process of transforming the old measurement and control device into the new measurement and control device, it is possible to achieve monitoring and protection without loss and without power outage; The existing configuration of the existing measurement and control device is fully utilized. Through mirroring, the external wiring of the terminal block can be kept unchanged, and the three remote signals can be checked. Therefore, when renovating the measurement and control device, there is no need to re-lay long cables, and there is no need to repeatedly check multiple channel signals, which reduces the signal checking amount and improves the efficiency of the renovation process. The movable cabinet-type equipment meets the requirements of small size and convenient mobile operation, and meets the requirements of non-stop transformation of measurement and control devices in different substations.

[0030] like Figure 6 As shown, an embodiment of the present invention provides a non-stop online transformation system for conventional substation measurement and control devices, comprising: Equipment remote control simulation module 101, mirror server 102, offline networking switch 103, multi-purpose display module 104, online transition measurement and control module 105, signal loop online transition module 106, screen cabinet housing 107 and universal wheel 108; The online transition measurement and control module 105 includes a temporary measurement and control device connection unit 601, a first signal checking unit 602, a measurement and control device online transformation unit 603 and a second signal checking unit 604; The temporary measurement and control device connection unit 601 is used to connect the temporary measurement and control device to the primary equipment and secondary equipment of the conventional substation through the signal loop online transition module when the old measurement and control device of the conventional substation needs to be transformed into a new measurement and control device; The first signal checking unit 602 is used to check the temporary telesignaling signal, temporary telemetry signal and temporary remote control signal of the temporary measurement and control device through the mirror server; The temporary measurement and control device connection unit 601 is also used to connect the temporary measurement and control device to the station control layer of the conventional substation after the temporary telesignaling signal, temporary telemetering signal and temporary remote control signal are verified to be correct; The measurement and control device online transformation unit 603 is used to remove the old measurement and control device and install a new measurement and control device; The second signal checking unit 604 is used to check the new telesignaling signal, the new telemetry signal and the new remote control signal of the new measurement and control device through the mirror server after the new measurement and control device is installed; The temporary measurement and control device connection unit 601 is also used to disconnect the temporary measurement and control device through the signal loop online transition module after the new telesignaling signal, the new telemetering signal and the new remote control signal are verified to be correct.

[0031] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0032] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0033] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0034] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0035] The above are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the scope of the claims of the present invention to be approved.

Claims

1. A method for online transformation of conventional substation measurement and control equipment without power outage, characterized in that: Applied to the non-stop online transformation system of conventional substation measurement and control devices, the non-stop online transformation system of conventional substation measurement and control devices includes a device remote control simulation module, a mirror server, an offline networking switch, a multi-purpose display module, an online transition measurement and control module and a signal loop online transition module. The non-stop online transformation method of conventional substation measurement and control devices includes: When the old measurement and control device of the conventional substation needs to be transformed into a new measurement and control device, the temporary measurement and control device is connected to the primary equipment and secondary equipment of the conventional substation through the signal loop online transition module; Verifying the temporary telesignaling signal, temporary telemetry signal and temporary remote control signal of the temporary measurement and control device through the mirror server; When the temporary telesignaling signal, the temporary telemetry signal and the temporary remote control signal are verified to be correct, the temporary measurement and control device is connected to the station control layer of the conventional substation; The old measurement and control device is removed and the new measurement and control device is installed; After the new measurement and control device is installed, the new telesignaling signal, the new telemetry signal and the new remote control signal of the new measurement and control device are checked by the mirror server; When the new telesignaling signal, the new telemetry signal and the new remote control signal are verified to be correct, the connection of the temporary measurement and control device is disconnected through the signal loop online transition module.

2. The method for online transformation of conventional substation measurement and control equipment without power outage according to claim 1 is characterized in that: The signal loop online transition module comprises a telesignal loop online transition terminal block, a telemetry loop online transition terminal block and a remote control loop online transition terminal block; the outer side of the terminal block of the telesignal loop online transition terminal block is connected to the external cable of the telesignal loop, and the inner side of the terminal block is connected to the telesignal loop wiring of the old measurement and control device; the outer side of the terminal block of the telemetry loop online transition terminal block is connected to the external cable of the telemetry loop, and the inner side of the terminal block is connected to the telemetry loop wiring of the old measurement and control device; the outer side of the terminal block of the remote control loop online transition terminal block is connected to the external cable of the remote control loop, and the inner side of the terminal block is connected to the remote control loop wiring of the old measurement and control device, The temporary measurement and control device is connected to the primary equipment and secondary equipment of the conventional substation through the signal loop online transition module, including: Connecting the remote signaling circuit wiring of the temporary measurement and control device to the outside of the terminal block of the online transition terminal block of the remote signaling circuit, so that the remote signaling circuit of the temporary measurement and control device is connected in parallel with the remote signaling circuits of the primary equipment and the secondary equipment of the conventional substation; Connecting the telemetry circuit wiring of the temporary measurement and control device to the outside of the terminal block of the telemetry circuit online transition terminal block, so that the telemetry circuit of the temporary measurement and control device is connected in parallel with the telemetry circuits of the primary equipment and the secondary equipment of the conventional substation; The remote control circuit wiring of the temporary measurement and control device is connected to the outside of the terminal block of the online transition terminal block of the telesignaling circuit, so that the remote control circuit of the temporary measurement and control device is connected in parallel with the remote control circuits of the primary equipment and secondary equipment of the conventional substation.

3. The method for online transformation of conventional substation measurement and control equipment without power outage according to claim 2 is characterized in that: The checking of the temporary telesignaling signal, temporary telemetry signal and temporary remote control signal of the temporary measurement and control device by the mirror server includes: The simulated remote signal, the simulated telemetry signal and the simulated remote control signal are obtained by simulating the mirror server; Obtaining a temporary telesignaling signal, a temporary telemetering signal and a temporary remote control signal of the temporary measurement and control device through the telesignaling circuit, the telemetering circuit and the remote control circuit respectively; Respectively comparing whether the simulated telesignaling signal and the temporary telesignaling signal, the simulated telemetry signal and the temporary telemetry signal, and the simulated remote control signal and the temporary remote control signal are consistent; If they are all consistent, it is determined that the temporary telesignaling signal, the temporary telemetry signal and the temporary remote control signal of the temporary measurement and control device are verified to be correct; If at least one signal is inconsistent, it is determined that the temporary telesignaling signal, the temporary telemetry signal and the temporary remote control signal of the temporary measurement and control device are incorrectly verified.

4. The method for online transformation of conventional substation measurement and control equipment without power outage according to claim 3 is characterized in that: The step of removing the old measurement and control device and installing the new measurement and control device comprises: Disconnect the remote signaling circuit wiring of the old measurement and control device from the inner side of the terminal block of the online transition terminal block of the remote signaling circuit; disconnect the remote sensing circuit wiring of the old measurement and control device from the inner side of the terminal block of the online transition terminal block of the remote sensing circuit; disconnect the remote control circuit wiring of the old measurement and control device from the inner side of the terminal block of the online transition terminal block of the remote control circuit; Connect the telesignaling circuit wiring of the new measurement and control device to the inner side of the terminal block of the telesignaling circuit online transition terminal block; connect the telemetry circuit wiring of the new measurement and control device to the inner side of the terminal block of the telemetry circuit online transition terminal block; connect the remote control circuit wiring of the new measurement and control device to the inner side of the terminal block of the remote control circuit online transition terminal block.

5. The method for online transformation of conventional substation measurement and control equipment without power outage according to claim 2, characterized in that: The telesignaling loop online transition terminal block includes a common end interface and a single-point input interface. The telesignaling loop external cables of the primary equipment and the secondary equipment of the conventional substation are connected to the common end interface and the single-point input interface outside the terminal block of the telesignaling loop online transition terminal block. The telesignaling loop wiring of the old measurement and control device is connected to the common end interface and the single-point input interface inside the terminal block. The method of connecting the remote signaling circuit wiring of the temporary measurement and control device to the outside of the terminal block of the online transition terminal block of the remote signaling circuit comprises: Short-circuit the remote signaling circuit wiring of the temporary measurement and control device to the common terminal interface and the single-point input interface outside the terminal block of the online transition terminal block of the remote signaling circuit; so that the remote signaling circuit of the temporary measurement and control device is connected in parallel with the remote signaling circuits of the primary equipment and secondary equipment of the conventional substation; Before the old measurement and control device is removed, the method further comprises: Control the remote signal circuit to disconnect the middle connecting piece between the inner side of the terminal block and the outer side of the terminal block of the online transition terminal block; After the new measurement and control device is installed, it also includes: The remote signaling circuit is controlled to close the middle connecting piece between the inner side of the terminal block and the outer side of the terminal block of the online transition terminal block.

6. The method for online transformation of conventional substation measurement and control equipment without power outage according to claim 2, characterized in that: The telemetry loop online transition terminal block includes current terminals 1 to current terminals 6 and voltage terminals 1 to voltage terminals 6. The current ends of the telemetry loop external cables of the primary equipment and secondary equipment of the conventional substation are respectively connected to the current terminals 1 to current terminals 4 outside the terminal block of the telemetry loop online transition terminal block, and the voltage ends of the telemetry loop external cables are respectively connected to the voltage terminals 1 to voltage terminals 4 outside the terminal block. The telemetry loop wiring of the old measurement and control device is connected to the current terminals 1 to the current terminals 6 and the voltage terminals 1 to the voltage terminals 6 inside the terminal block. The step of connecting the telemetry circuit wiring of the temporary measurement and control device to the outside of the terminal block of the telemetry circuit online transition terminal block comprises: The current wiring of the telemetry circuit of the temporary measurement and control device is respectively connected to the current terminal 1 to the current terminal 6 outside the terminal block of the online transition terminal block of the telemetry circuit, and the voltage wiring is respectively connected to the voltage terminal 1 to the voltage terminal 6 outside the terminal block of the online transition terminal block of the telemetry circuit; so that the telemetry circuit of the temporary measurement and control device is connected in parallel with the telemetry circuits of the primary equipment and the secondary equipment of the conventional substation; Controlling the current terminal 4 to be short-circuited to the current terminal 6, and controlling the voltage terminal 4 to be short-circuited to the voltage terminal 6; Before the old measurement and control device is removed, the method further comprises: Disconnect the middle connecting piece between the current terminal 1 to the current terminal 6 on the inner side of the terminal block and the outer side of the terminal block, and disconnect the middle connecting piece between the voltage terminal 1 to the voltage terminal 6 on the inner side of the terminal block and the outer side of the terminal block; After the new measurement and control device is installed, and the new telesignaling signal, the new telemetry signal and the new remote control signal are verified to be correct, the method further includes: Close the middle connecting pieces between the current terminal 1 to the current terminal 3 and between the voltage terminal 1 to the voltage terminal 3 on the inner side and the outer side of the terminal row.

7. The method for online transformation of conventional substation measurement and control equipment without power outage according to claim 2, characterized in that: The remote control loop online transition terminal block includes a positive power terminal, a closing loop negative power terminal, a tripping loop negative power terminal and other ports. The remote control loop external cable of the primary equipment and secondary equipment of the conventional substation is connected to the positive power terminal, the closing loop negative power terminal, the tripping loop negative power terminal and other ports on the outside of the terminal block of the remote control loop online transition terminal block. The remote signaling circuit wiring of the old measurement and control device is connected to the positive power terminal, the closing loop negative power terminal, the tripping loop negative power terminal and other ports on the inside of the terminal block. The remote control circuit of the temporary measurement and control device includes a circuit breaker opening and closing remote control circuit, an isolating switch remote control circuit and a grounding switch remote control circuit. The method of connecting the remote control circuit wiring of the temporary measurement and control device to the outside of the terminal block of the remote control circuit online transition terminal block includes: Connect the wiring of the circuit breaker opening and closing remote control circuit to the positive terminal outside the terminal block of the online transition terminal block of the remote control circuit, the negative terminal of the closing circuit and the negative terminal of the tripping circuit, and connect the wiring of the disconnector remote control circuit and the grounding switch remote control circuit to other ports; so that the remote control circuit of the temporary measurement and control device is connected in parallel with the remote control circuits of the primary equipment and secondary equipment of the conventional substation; Before the old measurement and control device is removed, the method further comprises: Disconnect the middle connecting piece between the positive power terminal on the inner side of the terminal block and the outer side of the terminal block, the negative power terminal of the closing circuit, the negative power terminal of the tripping circuit and other ports; After the new measurement and control device is installed, it also includes: Close the middle connecting piece between the positive power end on the inner side of the terminal block and the outer side of the terminal block, the negative power end of the closing circuit, the negative power end of the tripping circuit and other ports.

8. A non-stop online transformation system for conventional substation measurement and control equipment, characterized in that: include: Equipment remote control simulation module, mirror server, offline networking switch, multi-purpose display module, online transition measurement and control module and signal loop online transition module; The online transition measurement and control module includes a temporary measurement and control device connection unit, a first signal checking unit, a measurement and control device online transformation unit and a second signal checking unit; The temporary measurement and control device connection unit is used to connect the temporary measurement and control device to the primary equipment and secondary equipment of the conventional substation through the signal loop online transition module when the old measurement and control device of the conventional substation needs to be transformed into a new measurement and control device; The first signal checking unit is used to check the temporary telesignaling signal, temporary telemetry signal and temporary remote control signal of the temporary measurement and control device through the mirror server; The temporary measurement and control device connection unit is also used to connect the temporary measurement and control device to the station control layer of the conventional substation after the temporary telesignaling signal, the temporary telemetry signal and the temporary remote control signal are verified to be correct; The online transformation unit of the measuring and controlling device is used to dismantle the old measuring and controlling device and install the new measuring and controlling device; The second signal checking unit is used to check the new telesignaling signal, the new telemetry signal and the new remote control signal of the new measurement and control device through the mirror server after the installation of the new measurement and control device is completed; The temporary measurement and control device connection unit is also used to disconnect the temporary measurement and control device through the signal loop online transition module after the new telesignaling signal, the new telemetry signal and the new remote control signal are verified to be correct.

9. The non-stop online transformation system for conventional substation measurement and control devices according to claim 8 is characterized in that: The conventional substation measurement and control device non-stop online transformation system also includes: Cabinet-style housing and universal wheels.

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