CN210775706U - Feeder automation action logic testing device - Google Patents
Feeder automation action logic testing device Download PDFInfo
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- CN210775706U CN210775706U CN201921641674.4U CN201921641674U CN210775706U CN 210775706 U CN210775706 U CN 210775706U CN 201921641674 U CN201921641674 U CN 201921641674U CN 210775706 U CN210775706 U CN 210775706U
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Abstract
The utility model discloses a feeder automation action logic testing arrangement, including power management module, simulation circuit breaker, voltage output module and main control module, power management module is connected with simulation circuit breaker, main control module, voltage output module respectively, main control module is connected with simulation circuit breaker, voltage output module respectively, the external positive port of separating brake input of simulation circuit breaker, separating brake input negative port, the positive port of combined floodgate input, combined floodgate input negative port, the output port that closes a position, the output port that divides a position and telesignalling public port. The utility model discloses install integrated simulation circuit breaker, need not to connect actual simulation circuit breaker in addition again during the test, not only can realize voltage time type feeder automation action logic test, can realize voltage-electric current time type feeder automation action logic test moreover.
Description
Technical Field
The utility model relates to a feeder automation action logic testing arrangement belongs to distribution automation test field.
Background
Distribution automation can quickly and automatically locate and isolate distribution network faults, and is an important part forming an intelligent power grid. Feeder automation is a foundation constituting distribution automation, and can be divided into a voltage-time type and a voltage-current time type, and is an important component of distribution automation. The voltage-time type feeder line is automatic, and fault positioning and isolation are realized by combining voltage conditions on two sides of a switch and a specific logic relation; the voltage-current time type feeder automation takes voltage type control logic and fault current as composite criteria, detects faults by current type logic and restores power supply by the voltage type logic. Voltage time type feeder automation equipment possesses characteristics such as logic is simple reliable, fault isolation is accurate, high-efficient, obtains extensive application in the reality, nevertheless because equipment manufacturer technical level differs, whether various functions of feeder automation terminal are normal, need detect one by one before the network entry, strengthens each item functional test to automation terminal, guarantees that equipment function is normal, improves the power supply reliability of distribution network.
The automatic testing method of the objective feed-forward line comprises the following steps: a secondary synchronous injection method, a master station injection method and a terminal injection method. The secondary synchronous injection method simulates each distribution automation terminal at the upstream of a fault section, and the secondary synchronous injection fault simulates a short-circuit current waveform, so that the test of the distribution automation fault processing process can be realized. And in the master station injection method, the testing device simulates the information interaction process of the power distribution terminal and the tested master station system according to the acquired information such as fault current, current distribution before and after the fault and the like, so as to test the normal fault processing process of the master station. And the terminal injection method is used for connecting the power source and the switching value output equipment, simulating data such as current, voltage, switching state and the like of a power distribution network line, injecting the data into a secondary terminal of the power distribution terminal, and simultaneously, acquiring control information of the power distribution terminal by the input acquisition system so as to detect whether the FA action logic of the system is normal.
The field of automatic testing of the feed-forward line mostly adopts a typical terminal injection method, a main station injection method and a synchronous injection method to synchronously inject current and voltage into a power distribution main station or a secondary terminal, a simulation platform is needed in the testing process of the device, a large amount of technical personnel and corresponding equipment are needed, and effective and reliable testing of a feeder line automatic system can be realized.
The device has the disadvantages that a large-scale simulation platform is mostly needed, the test process is complex, and the technical requirements on testers are high. The device is mostly suitable for test projects of provincial electric power academy of sciences, and can not meet the requirements of organizations such as FTU product production lines, power grid operation and maintenance teams and the like; the existing feeder automation terminal is complex in function, the same device can integrate functions of voltage type, current type, voltage current type, three-section protection and the like, the feeder automation terminal is suitable for an action logic function testing device organized in FTU product production lines, power grid operation and maintenance groups and the like, parameter configuration is complex, testing functions are single, and only one type of feeder automation terminal can be measured.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving above-mentioned prior art's shortcoming and weak point, provide a feeder automation action logic testing arrangement, the integrated simulation circuit breaker of the device need not to connect actual simulation circuit breaker in addition again during the test, not only can realize voltage-time type feeder automation action logic test, can realize voltage-current time type feeder automation action logic test moreover.
The purpose of the utility model can be achieved by adopting the following technical scheme:
the utility model provides a feeder automation action logic testing arrangement, includes power management module, simulation circuit breaker, voltage output module and main control module, power management module is connected with simulation circuit breaker, main control module, voltage output module respectively, main control module is connected with simulation circuit breaker, voltage output module respectively, the external positive port of separating brake input of simulation circuit breaker, separating brake input negative port, the positive port of combined floodgate input, combined floodgate input negative port, the output port that closes a position, the output port that separates a position and telesignalling public port.
Further, the device still includes the current board module, the current board module includes first step-down circuit, first voltage stabilizing circuit, second voltage stabilizing circuit, control circuit, MOS pipe switch drive circuit, MOS pipe switch and current output circuit, power management module, first step-down circuit, first voltage stabilizing circuit, second voltage stabilizing circuit and control circuit connect gradually, control circuit, MOS pipe switch drive circuit, MOS pipe switch and current output circuit connect gradually, and control circuit and main control module are connected, the current output circuit is used for the output of analog current.
Furthermore, the current plate module further comprises an overcurrent detection circuit, and the overcurrent detection circuit is respectively connected with the control circuit and the MOS tube switch.
Furthermore, the current output circuit is externally connected with an output three-phase current port.
Furthermore, the main control module comprises a second voltage reduction circuit, a third voltage stabilizing circuit, a master control circuit and an input/output unit, the power management module, the second voltage reduction circuit, the third voltage stabilizing circuit and the master control circuit are sequentially connected, and the master control circuit is respectively connected with the analog circuit breaker, the voltage output module and the input/output unit.
Further, the input/output unit includes a display circuit and a key circuit.
Further, the voltage output module comprises a relay driving circuit, a first relay and a second relay, the first relay and the second relay are respectively connected with the relay driving circuit, the first relay is used for outputting analog voltage, the second relay is used for outputting zero sequence voltage, and the relay driving circuit is respectively connected with the power management module and the main control module.
Furthermore, the first relay is externally connected with a load side three-phase voltage output port and a power supply side three-phase voltage output port, and the second relay is externally connected with a zero-sequence voltage output port.
Further, the simulated circuit breaker comprises a third relay, a fourth relay, a fifth relay, a sixth relay, a seventh relay, an eighth relay, a ninth relay, a tenth relay, an eleventh relay, a twelfth relay, a first wiring terminal, a second wiring terminal, a third wiring terminal, a fourth wiring terminal, a fifth wiring terminal, a sixth wiring terminal and a seventh wiring terminal, wherein the fifth relay is externally connected with a switching-on input positive port and a switching-on input negative port, the sixth relay is externally connected with a switching-off input positive port and a switching-off input negative port, and the sixth wiring terminal is externally connected with a position output port and a position output port;
the third relay is respectively connected with the first wiring terminal, the second wiring terminal, the sixth wiring terminal, the tenth relay, the eleventh relay and the twelfth relay; the fourth relay is respectively connected with the third wiring terminal, the fifth wiring terminal, the ninth relay and the eleventh relay; the fifth relay is respectively connected with a fifth wiring terminal and a seventh relay; the sixth relay is respectively connected with the fifth wiring terminal and the eighth relay; the seventh relay is connected with the fourth wiring terminal; the eighth relay is respectively connected with the fourth wiring terminal and the ninth relay; the ninth relay is connected with the fourth wiring terminal; the tenth relay is respectively connected with the fifth wiring terminal, the sixth wiring terminal and the twelfth relay; the eleventh relay is connected with the sixth wiring terminal and the seventh wiring terminal respectively; the twelfth relay is respectively connected with the third connecting terminal, the sixth connecting terminal and the seventh connecting terminal; the first wiring terminal is connected with the second wiring terminal.
Further, the model number of the third relay is LY4N, the model numbers of the fourth relay, the fifth relay, the sixth relay and the tenth relay are LY2N, the model numbers of the seventh relay, the eighth relay and the ninth relay are G5V-2-H1-24DC, and the model numbers of the eleventh relay and the twelfth relay are DS2E-SL2-24 DC;
a ninth pin of the third relay is connected with a fourth pin of the first wiring terminal, a tenth pin of the third relay is connected with a third pin of the first wiring terminal, an eleventh pin of the third relay is connected with a second pin of the first wiring terminal, a twelfth pin of the third relay is connected with a second pin of the first wiring terminal, a seventh pin of the third relay is connected with a seventh pin of the second wiring terminal, an eighth pin of the third relay is connected with an eighth pin of the second wiring terminal, a thirteenth pin of the third relay is respectively connected with a fourteenth pin of the third relay and an eighth pin of the tenth relay, and a fourteenth pin of the third relay is respectively connected with a ninth pin of the twelfth relay and a tenth wiring terminal;
a seventh pin of the fourth relay is connected with an eighth pin of the fifth wiring terminal, an eighth pin of the fourth relay is connected with a seventh pin of the fifth wiring terminal, and a fourth pin of the fourth relay is respectively connected with a third pin of the third wiring terminal, a ninth pin of the ninth relay and a first pin of the eleventh relay;
a seventh pin of the fifth relay is connected with a sixth pin of the fifth wiring terminal, an eighth pin of the fifth relay is connected with a fifth pin of the fifth wiring terminal, and a third pin of the fifth relay is connected with an eighth pin of the seventh relay;
a seventh pin of the sixth relay is connected with a fourth pin of the fifth wiring terminal, an eighth pin of the sixth relay is connected with a third pin of the fifth wiring terminal, and a fourth pin of the sixth relay is connected with an eighth pin of the eighth relay;
a first pin of the seventh relay is connected with a tenth pin and an eleventh pin of the fourth wiring terminal respectively, and a sixteenth pin of the seventh relay is connected with a fourth pin, a ninth pin and a twelfth pin of the fourth wiring terminal respectively;
a first pin of the eighth relay is connected with a fifth pin and a sixth pin of the fourth wiring terminal respectively, a sixteenth pin of the eighth relay is connected with a fourth pin of the fourth wiring terminal respectively, and an eighth pin of the eighth relay is connected with a fourth pin of the sixth relay;
a first pin of the ninth relay is connected with a second pin of the fourth wiring terminal, a sixteenth pin of the ninth relay is respectively connected with the first pin of the ninth relay and a third pin of the fourth wiring terminal, and a ninth pin of the ninth relay is connected with a first pin of the eleventh relay;
a second pin of the tenth relay is respectively connected with all pins of the sixth wiring terminal and a thirteenth pin of the twelfth relay, a seventh pin of the tenth relay is connected with a second pin of the fifth wiring terminal, and an eighth pin of the tenth relay is connected with a first pin of the fifth wiring terminal;
a sixth pin of the eleventh relay is respectively connected with an eighth pin of the eleventh relay, a fifth pin of the seventh wiring terminal and a seventh pin of the seventh wiring terminal, and an eleventh pin and a thirteenth pin of the eleventh relay are respectively connected with all pins of the sixth wiring terminal;
a first pin of the twelfth relay is connected with a first pin of the third wiring terminal, and an eleventh pin of the twelfth relay is respectively connected with all pins of the sixth wiring terminal and a third pin of the seventh wiring terminal;
and the fifth pin, the sixth pin, the seventh pin and the eighth pin of the first wiring terminal are connected with the first pin, the second pin, the third pin and the fourth pin of the second wiring terminal in a one-to-one correspondence manner.
The utility model discloses for prior art external following beneficial effect:
1. the utility model discloses the device has integrateed simulation circuit breaker, and feeder automation terminal carries out the divide-shut brake operation to the device, and the device gets dead time through judging inside simulation circuit breaker both sides voltage rather than one of them and tests feeder automation action logic function at feeder automation terminal, does not need external actual simulation circuit breaker during consequently the test, makes the wiring more simple and convenient, and it is more convenient to operate.
2. The utility model discloses the device has increased the current board module on the basis of voltage-time type feeder automation action logic test, the current board module includes control circuit, MOS pipe switch drive circuit, MOS pipe switch and current output circuit, control circuit can control, adjust analog current, by MOS pipe switch drive circuit through control MOS pipe switch control current's input or output, through current output circuit analog current's output, with the test of realization current type feeder automation action logic, thereby realize voltage-current time type feeder automation action logic test.
3. The utility model discloses the current board module of device is still including overflowing detection circuitry, detects the electric current size of output, can turn into digital signal transmission to control circuit with analog signal to this regulating current size can make the current board module no longer than rated current.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a block diagram of a simple structure of a feeder automation operation logic testing apparatus according to an embodiment of the present invention.
Fig. 2 is a block diagram of a specific structure of a feeder automation operation logic testing apparatus according to an embodiment of the present invention.
Fig. 3a to fig. 3b are schematic diagrams of a circuit breaker according to an embodiment of the present invention.
Fig. 4a is a schematic diagram of a control circuit in a current plate module according to an embodiment of the present invention.
Fig. 4b is a schematic diagram of a MOS transistor switch driving circuit, a MOS transistor switch and a current output circuit in the current board module according to the embodiment of the present invention.
Fig. 5 is a schematic view illustrating a test connection relationship of a feeder automation operation logic testing apparatus according to an embodiment of the present invention.
The device comprises a power management module, a 2-analog circuit breaker, a 3-current board module, a 301-first voltage reduction circuit, a 302-first voltage stabilizing circuit, a 303-second voltage stabilizing circuit, a 304-control circuit, a 305-MOS tube switch driving circuit, a 306-MOS tube switch, a 307-current output circuit, a 308-overcurrent detection circuit, a 4-voltage output module, a 401-relay driving circuit, a 402-first relay, a 403-second relay, a 5-main control module, a 501-second voltage reduction circuit, a 502-third voltage stabilizing circuit, a 503-main control circuit, a 504-display circuit, a 505-key circuit and a 6-feed line automatic action logic testing device.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example (b):
as shown in fig. 1 and 2, the present embodiment provides a feeder automation action logic testing apparatus, which includes a power management module 1, an analog circuit breaker 2, a current board module 3, a voltage output module 4, and a main control module 5.
The power management module 1 is connected with the simulation circuit breaker 2, the current plate module 3, the voltage output module 4 and the main control module 5 respectively, the power management module 1 is externally connected with 220V alternating current, and the power management unit converts the 220V alternating current into 24V direct current for supplying power to the simulation circuit breaker 2, the current plate module 3, the voltage output module 4 and the main control module 5.
The simulation circuit breaker 2 is not electrically connected with the main control module 5, the two modules adopt an optical coupling switch for isolated communication, the simulation circuit breaker 2 is mainly used for simulating a circuit breaker in an actual power distribution network, is connected with a feeder automation terminal to be tested, receives a switching-on and switching-off command from the feeder automation terminal to simulate switching-on and switching-off of a high-voltage circuit breaker, and is externally connected with a switching-off input positive port FZ +, a switching-off input negative port FZ-, a switching-on input positive port HZ +, a switching-on input negative port HZ-, a switching-on output port HW, a switching-off output port FW and a remote signaling common point port YCOM by the simulation circuit breaker; as shown in fig. 3a to 3b, the analog circuit breaker 2 includes a third relay K2, a fourth relay K3, a fifth relay K4, a sixth relay K5, a seventh relay K6, an eighth relay K7, a ninth relay K8, a tenth relay K9, an eleventh relay K11, a twelfth relay K12, a first connection terminal (CON8) J1, a second connection terminal (CON8) J2, a third connection terminal (CON8) J6, a fourth connection terminal (CON12) J7, a fifth connection terminal (CON8) J8, a sixth connection terminal (SIP7) J9, and a seventh connection terminal (CON8) J10.
Further, the third relay K2 is of model number LY4N, the coil rated voltage is 24V, the rated current is 69mA, the rated power is 1.656W, and there are fourteen pins; the fourth relay K3, the fifth relay K4, the sixth relay K5 and the tenth relay K9 are LY2N, the rated voltage of a coil is AC 220V, the rated current is 36.9mA, the resistance of the coil is 650 omega, the rated power is 0.886W, and eight pins are provided in total; the seventh relay K6, the eighth relay K7 and the ninth relay K8 are G5V-2-H1-24DC, the rated voltage of a coil is 24V, the rated current of the coil is 8.33mA, the resistance of the coil is 2880 omega, the rated power of the coil is about 0.200W, and the eight relays are total; the models of the eleventh relay K11 and the twelfth relay K12 are DS2E-SL2-24DC, the rated voltage of a coil is 24V, the rated current is 7.5mA, the resistance of the coil is 3.2K omega, the rated power is about 0.180W, and ten pins are shared; the seventh relay K6 is externally connected with a switching-on input positive port and a switching-on input negative port, the eighth relay K7 is externally connected with a switching-off input positive port and a switching-off input negative port, and the sixth wiring terminal J9 is externally connected with a switching-on output port, a switching-off output port and a remote signaling common point port.
The third relay K2 is respectively connected with a first wiring terminal J1, a second wiring terminal J2, a sixth wiring terminal J9, a tenth relay K9, an eleventh relay K11 and a twelfth relay K12; specifically, a ninth pin (pin 9) of the third relay K2 is connected to a fourth pin (pin 4) of the first connection terminal J1, a tenth pin (pin 10) of the third relay K2 is connected to a third pin (pin 3) of the first connection terminal J1, an eleventh pin (pin 11) of the third relay K2 is connected to a second pin (pin 2) of the first connection terminal, a twelfth pin (pin 12) of the third relay K2 is connected to a first pin (pin 1) of the first connection terminal J1, a seventh pin (pin 7) of the third relay K2 is connected to a seventh pin (pin 7) of the second connection terminal J2, an eighth pin (pin 8) of the third relay K2 is connected to an eighth pin (pin 8) of the second connection terminal J2, and a thirteenth pin (13) of the third relay K2 is connected to a fourteenth pin (pin 14) of the third connection terminal J2 and fourteenth pins 14, respectively, An eighth pin (pin 8) of the tenth relay is connected, and a fourteenth pin (pin 14) of the third relay K2 is connected to a ninth pin (pin 9) of the twelfth relay K12 and a tenth connection terminal J10, respectively.
The fourth relay K3 is respectively connected with a third wiring terminal J6, a fifth wiring terminal J8, a ninth relay K8 and an eleventh relay K11; specifically, the seventh pin (pin 7) of the fourth relay K3 is connected to the eighth pin (pin 8) of the fifth junction terminal J8, the eighth pin (pin 8) of the fourth relay K3 is connected to the seventh pin (pin 7) of the fifth junction terminal J8, and the fourth pin (pin 4) of the fourth relay K3 is connected to the third pin (pin 3) of the third junction terminal J6, the ninth pin (pin 9) of the ninth relay K8, and the first pin (pin 1) of the eleventh relay K11, respectively.
The fifth relay K4 is respectively connected with a fifth wiring terminal J8 and a seventh relay K6; specifically, the seventh pin (pin 7) of the fifth relay K4 is connected to the sixth pin (pin 6) of the fifth junction terminal J8, the eighth pin (pin 8) of the fifth relay K4 is connected to the fifth pin (pin 5) of the fifth junction terminal J8, and the third pin (pin 3) of the fifth relay K4 is connected to the eighth pin (pin 8) of the seventh relay K6.
The sixth relay K5 is respectively connected with the fifth wiring terminal J8 and the eighth relay K7; specifically, the seventh pin (pin 7) of the sixth relay K5 is connected to the fourth pin (pin 4) of the fifth connection terminal J8, the eighth pin (pin 8) of the sixth relay K5 is connected to the third pin (pin 3) of the fifth connection terminal J8, and the fourth pin (pin 4) of the sixth relay K5 is connected to the eighth pin (pin 8) of the eighth relay K7.
The seventh relay K6 is connected with a fourth wiring terminal J7; specifically, the first pin (pin 1) of the seventh relay K6 is connected to the tenth pin (pin 10) and the eleventh pin (pin 11) of the fourth connection terminal J7,
a sixteenth pin (pin 16) of the seventh relay K6 is connected to a fourth pin (pin 4), a ninth pin (pin 9), and a twelfth pin (pin 12) of the fourth connection terminal J7, respectively.
The eighth relay K7 is respectively connected with the fourth wiring terminal J7 and the sixth relay K5; specifically, a first pin (pin 1) of the eighth relay K7 is connected to a fifth pin (pin 5) and a sixth pin (pin 6) of the fourth connection terminal J7, a sixteenth pin (pin 16) of the eighth relay K7 is connected to a fourth pin (pin 4) of the fourth connection terminal J7, and an eighth pin (pin 8) of the eighth relay K7 is connected to a fourth pin (pin 4) of the sixth relay K5.
A ninth relay K8 connected to the fourth connection terminal J7 and an eleventh relay K11; specifically, a first pin (pin 1) of the ninth relay K8 is connected to a second pin (pin 2) of the fourth connection terminal J7, a sixteenth pin (pin 16) of the ninth relay K8 is connected to a first pin (pin 1) of the ninth relay K8 and a third pin (pin 3) of the fourth connection terminal J7, respectively, and a ninth pin (pin 9) of the ninth relay K8 is connected to a first pin (pin 1) of the eleventh relay K11.
The tenth relay K9 is connected to the fifth connection terminal J8, the sixth connection terminal J9, and the twelfth relay K12, respectively; specifically, the second pin (pin 2) of the tenth relay K9 is connected to the thirteenth pin (pin 13) of the twelfth relay K12, the seventh pin (pin 7) of the tenth relay K9 is connected to the second pin (pin 2) of the fifth connection terminal J8, and the eighth pin (pin 8) of the tenth relay K9 is connected to the first pin (pin 1) of the fifth connection terminal J8.
The eleventh relay K11 is connected to a sixth connection terminal J9 and a seventh connection terminal J10, respectively; specifically, the sixth pin (pin 6) of the eleventh relay K11 is connected to the eighth pin (pin 8) of the eleventh relay K11, the fifth pin (pin 5) of the seventh terminal J10, and the seventh pin (pin 7) of the seventh terminal J10, respectively,
an eleventh pin (pin 11) and a thirteenth pin (pin 13) of the eleventh relay K11 are connected to all the pins (pin 1 to pin 7) of the sixth connection terminal J9, respectively.
The twelfth relay K12 is respectively connected with the third connecting terminal J5, the sixth connecting terminal J9 and the seventh connecting terminal J10; specifically, a first pin (pin 1) of the twelfth relay K12 is connected to a first pin (pin 1) of the third connection terminal, and an eleventh pin (pin 11) of the twelfth relay is connected to a third pin (pin 4) of the seventh connection terminal J10.
The first connecting terminal J1 is connected with the second connecting terminal J2; specifically, the fifth pin (pin 5), the sixth pin (pin 6), the seventh pin (pin 7), and the eighth pin (pin 8) of the first connection terminal J1 are connected to the first pin (pin 1), the second pin (pin 2), the third pin (pin 3), and the fourth pin (pin 4) of the second connection terminal J2 in a one-to-one correspondence manner.
The current plate module 3 is not electrically connected with the main control module 5, the two modules adopt an optical coupling switch for isolated communication, the current plate module 3 comprises a first voltage reduction circuit 301, a first voltage stabilizing circuit 302, a second voltage stabilizing circuit 303, a control circuit 304, an MOS tube switch driving circuit 305, an MOS tube switch 306 and a current output circuit 307, the power management module 1, the first voltage reduction circuit 301, the first voltage stabilizing circuit 302, the second voltage stabilizing circuit 303 and the control circuit 304 are sequentially connected, the first voltage reduction circuit 301 mainly functions to convert 24V direct current voltage into 12V direct current voltage, the first voltage stabilizing circuit 302 mainly functions to convert the 12V direct current voltage into 5V direct current voltage, the second voltage stabilizing circuit 303 mainly functions to convert the 5V direct current voltage into 3.3V direct current voltage, and the 3.3V direct current voltage supplies power for the control circuit 304; the control circuit 304, the MOS transistor switch driving circuit 305, the MOS transistor switch 306 and the current output circuit 307 are sequentially connected, and the control circuit 304 is connected with the main control module 5.
In order to enable the current plate module 3 not to exceed the rated current, the current plate module 3 further includes an over-current detection circuit 308, and the over-current detection circuit 308 is respectively connected with the control circuit 304 and the MOS transistor switch 306.
As shown in fig. 4a to 4b, the control circuit 304 adopts an STM32F103CBT6 single chip microcomputer, and is mainly used for receiving an instruction of the main control module, and controlling and adjusting the output of the analog current; the main components of the MOS transistor switch driving circuit 305 include resistors R5, R6, R7, R10, R14, R15, R21 and R28, capacitors C3, C9, C16 and C40, diodes D1 and D5, and a MOS driving chip IMP3223ESA/T (U2 and U3), and the MOS driving chip has the characteristics of 200V half-bridge driving, a high-voltage side adopting a working mode, a gate driving voltage range of 10-20V, bootstrap locking, compatibility with 3.3V, 5V and 15V undervoltage logic input, cross conduction protection logic structure, dead-zone built-in time, and the like, and mainly functions of providing driving voltage for the MOS transistor switch 306 by using a PWM circuit and controlling the conduction and the cut-off of the MOS transistor by changing the duty ratio; the main components of the MOS transistor switch 306 include resistors R8, R9, R11, R19, R20 and R22, capacitors C1, C2, C5 and C6, and MOS transistors Q1, Q2, Q3 and Q4, and mainly function of conducting or cutting off under the PWM effect to control the input or output of current; the current output circuit 307 is externally connected with three-phase current output ports Ia, Ib and Ic, main components of the current output circuit 307 comprise a capacitor C10, inductors L1 and L2 and interfaces J1 and J2, and the current output circuit is mainly used for outputting analog current; the main components of the over-current detection circuit 308 include resistors R18, R23, R24, R25, R27, R30 and R31, capacitors C19, C25, C27 and C26, and an operational amplifier U4, which is mainly used for detecting the magnitude of output current, and converting an analog signal into a digital signal through an ADC and transmitting the digital signal to the control circuit 304, so as to adjust the magnitude of current.
As can be seen from the figure, one end of the resistor R6 is connected with the pin 29 of the STM32F103CBT6 singlechip, the other end of the resistor R7 is connected with the pin 2 of the chip U2, one end of the resistor R7 is connected with the pin 26 of the STM32F103CBT6 singlechip, and the other end of the resistor R7 is connected with the pin 3 of the chip U2; one end of a resistor R14 is connected with a pin 30 of the STM32F103CBT6 singlechip, the other end of the resistor R14 is connected with a pin 2 of a chip U3, one end of a resistor R15 is connected with a pin 27 of the STM32F103CBT6 singlechip, and the other end of the resistor R15 is connected with a pin 3 of the chip U3; one end of the resistor R24 is connected with the pin 11 of the STM32F103CBT6 singlechip, and the other end of the resistor R24 is connected with the output end (pin 1) of the operational amplifier U4.
The voltage output module 4 comprises a relay driving circuit 401, a first relay 402 and a second relay 403, the first relay 402 and the second relay 403 are respectively connected with the relay driving circuit 401, and the relay driving circuit 401 is respectively connected with the power management module 1 and the main control module 5.
Further, the relay driving circuit 401 adopts an ULN2003A relay driving chip, the maximum driving voltage is 50V, the maximum current is 500mA, the maximum current of the COM-end diode is 200mA, and the relay driving circuit is mainly used for providing driving voltage for the first relay 402 and the second relay 403, so as to control the opening and closing of the first relay 402 and the second relay 403; the first relay 402 adopts MKS3P, the rated voltage of a relay contact of the model is 220VAC, and the rated current is 10A; the operating coil is rated at 24V working voltage, 55.8mA working current, rated power is 1.339W, and is externally connected with three-phase voltage output ports Ux, Uy and Uz at a load side and three-phase voltage output ports Ua, Ub and Uc at a power supply side, and mainly used for outputting analog voltage; the second relay 403 is externally connected with zero-sequence voltage output ports Um and Un and mainly used for outputting zero-sequence voltage, the zero-sequence output ports are used for measurement, the maximum power of a measurement port is 0.5VA, the MY2-J model can be selected, the rated voltage of a contact is 220VAC, the rated current is 5A, the rated voltage of an operating coil is 24V, and the working current is 37.5 mA.
The main control module 5 is respectively connected with the analog circuit breaker 2, the current plate module 3 and the voltage output module 4, and comprises a second voltage reduction circuit 501, a third voltage stabilizing circuit 502, a master control circuit 503 and an input/output unit, the power management module 1, the second voltage reduction circuit 501, the third voltage stabilizing circuit 502 and the master control circuit 503 are sequentially connected, the master control circuit 503 is respectively connected with the analog circuit breaker 2, the control circuit 304, the relay driving circuit 401 and the input/output unit, the second voltage reduction circuit 501 mainly functions to convert 24V direct current voltage into 5V direct current voltage, the third voltage stabilizing circuit 502 mainly functions to convert the 5V direct current voltage into 3.3V direct current voltage, and the 3.3V direct current voltage supplies power for the master control circuit 503.
Further, the total control circuit 503 may adopt an embedded real-time operating system μ COS, and use ST company STM32F767IGT6 as a main control chip, which has specific resources: 2MB on-chip program flash, 512kB on-chip SRAM, 216MHz operating frequency, have hardware LCD-TFT interface, 168 input/output ports, STM32F767IGT6 chip is the wide range power supply mode, and the supply voltage is 1.7V direct current voltage-3.6V direct current voltage, adopts the power supply mode and CAT6219 steady voltage chip of 3.3V direct current voltage in this embodiment, can output 500mA electric current the most, can satisfy the requirement of total control circuit 503.
Further, the input/output unit includes a display circuit 504 and a key circuit 505, the display circuit 504 preferably adopts an LCD display circuit, and its main function is to display the measurement command and the measurement result, and the key circuit 505 mainly functions to input the test command and control the start and end of the test.
As shown in fig. 5, which is a schematic diagram of a test connection of the feeder automation action logic testing apparatus of this embodiment, the feeder automation terminal is a tested piece, the analog circuit breaker is connected to the feeder automation terminal, the feeder automation terminal performs switching on and off operations on the feeder automation terminal testing system, and the feeder automation terminal testing system tests a feeder automation action logic function of the feeder automation terminal by determining A, B two-side voltage and B-side power failure time.
The feeder automation action logic testing device of the embodiment has the following characteristics: 1) the unilateral power-on delay switching-on and the delay time can be measured; 2) the double-side power-loss delay brake opening can be measured, and the delay time is measured; 3) the positive locking and the manual/automatic unlocking can be measured; 4) reverse locking and manual/automatic unlocking can be tested; 5) reverse locking and manual/automatic unlocking can be measured; 6) the time delay brake opening and the locking and closing of the grounding fault (zero sequence voltage) can be detected; 7) the switch error outlet under the shutdown state due to the abnormal state can be detected.
The operation items of the feeder automation action logic testing device of the embodiment comprise power supply side power-on and power-off, load side power-on and power-off, power supply forward locking manual unlocking, power supply forward locking power-on unlocking, load forward locking manual unlocking, load forward locking power-on unlocking, power supply reverse locking manual unlocking, power supply reverse locking power-on unlocking, load reverse locking manual unlocking, zero voltage in X time limit, zero voltage outside Y time limit, zero voltage in Y time limit and manual switching-off and locking switching-on; taking the power-on/power-off operation of the power supply side as an example, the method comprises the following steps:
1) voltage signal connects, and 1TVa (4 core are inserted by plane) is connected with relay port Ua, and 1TVb (4 core are inserted by plane) and Un (tester), and 2TVc (4 core are inserted by plane) is connected with relay 1 port Ux, and 2TVb (4 core are inserted by plane) is connected with relay 1 port Um.
2) And switching on and off signal connection, FZ + (10-core aerial plug) and the port FZ + of the analog circuit breaker, FZ-and HZ- (10-core aerial plug) are connected with the port FZ + of the COM analog circuit breaker, and HZ + (10-core aerial plug) and the port HZ + of the analog circuit breaker are connected.
3) And switching on/off position signal connection, FW (10 core aerial plug) and analog circuit breaker port FW, HW (10 core aerial plug) and analog circuit breaker port HW.
4. And operating the feeder automation action logic test device to test the power-on/power-off of the power supply side, and displaying the test result on an LCD display screen.
To sum up, the utility model integrates the simulation circuit breaker, the feeder automation terminal performs the switching-on and switching-off operation on the device, and the device tests the feeder automation action logic function of the feeder automation terminal by judging the power failure time of the voltage at two sides of the internal simulation circuit breaker and one side of the internal simulation circuit breaker, so that the external actual simulation circuit breaker is not needed during the test, the wiring is simpler and more convenient, and the operation is more convenient; furthermore, the utility model discloses the device has increased the current board module on the basis of voltage-time type feeder automation action logic test, the current board module includes control circuit, MOS pipe switch drive circuit, MOS pipe switch and current output circuit, control circuit can control, adjust analog current, by MOS pipe switch drive circuit through control MOS pipe on-off control current's input or output, through current output circuit analog current's output, with the test of realizing current type feeder automation action logic, thereby realize voltage-current time type feeder automation action logic test.
The above, only be the embodiment of the utility model discloses a patent preferred, nevertheless the utility model discloses a protection scope is not limited to this, and any technical personnel who is familiar with this technical field are in the utility model discloses a within range, according to the utility model discloses a technical scheme and utility model design equivalence substitution or change all belong to the protection scope of the utility model patent.
Claims (10)
1. The utility model provides a feeder automation action logic testing arrangement, its characterized in that, includes power management module, simulation circuit breaker, voltage output module and main control module, power management module is connected with simulation circuit breaker, main control module, voltage output module respectively, main control module is connected with simulation circuit breaker, voltage output module respectively, the external positive port of separating brake input of simulation circuit breaker, separating brake input negative port, the positive port of combined floodgate input, combined floodgate input negative port, the output port of closing a position, separating a position output port and telesignalling public port.
2. The feeder automation action logic testing device of claim 1, further comprising a current board module, wherein the current board module comprises a first voltage reduction circuit, a first voltage stabilizing circuit, a second voltage stabilizing circuit, a control circuit, a MOS transistor switch driving circuit, a MOS transistor switch and a current output circuit, the power management module, the first voltage reduction circuit, the first voltage stabilizing circuit, the second voltage stabilizing circuit and the control circuit are sequentially connected, the control circuit, the MOS transistor switch driving circuit, the MOS transistor switch and the current output circuit are sequentially connected, the control circuit is connected with the main control module, and the current output circuit is used for simulating the output of current.
3. The feeder automation action logic test device of claim 2, wherein the current board module further comprises an over-current detection circuit, and the over-current detection circuit is respectively connected with the control circuit and the MOS tube switch.
4. The feeder automation action logic testing device of claim 2, wherein the current output circuit is externally connected with a three-phase current output port.
5. The feeder automation action logic testing device of any one of claims 1 to 4, wherein the main control module comprises a second voltage reduction circuit, a third voltage stabilizing circuit, a master control circuit and an input/output unit, the power management module, the second voltage reduction circuit, the third voltage stabilizing circuit and the master control circuit are connected in sequence, and the master control circuit is respectively connected with the analog circuit breaker, the voltage output module and the input/output unit.
6. The feeder automation action logic testing device of claim 5 wherein the input/output unit includes a display circuit and a key circuit.
7. The feeder automation action logic testing device of any one of claims 1 to 4, wherein the voltage output module comprises a relay driving circuit, a first relay and a second relay, the first relay and the second relay are respectively connected with the relay driving circuit, the first relay is used for outputting analog voltage, the second relay is used for outputting zero sequence voltage, and the relay driving circuit is respectively connected with the power management module and the main control module.
8. The feeder automation action logic test device of claim 7, wherein the first relay is externally connected with a load side three-phase voltage output port and a power supply side three-phase voltage output port, and the second relay is externally connected with a zero-sequence voltage output port.
9. The feeder automation action logic testing device of any one of claims 1 to 4, wherein the analog circuit breaker includes a third relay, a fourth relay, a fifth relay, a sixth relay, a seventh relay, an eighth relay, a ninth relay, a tenth relay, an eleventh relay, a twelfth relay, a first wiring terminal, a second wiring terminal, a third wiring terminal, a fourth wiring terminal, a fifth wiring terminal, a sixth wiring terminal and a seventh wiring terminal, the fifth relay is externally connected with a positive closing input port and a negative closing input port, the sixth relay is externally connected with a positive opening input port and a negative opening input port, and the sixth wiring terminal is externally connected with an output port and an output port;
the third relay is respectively connected with the first wiring terminal, the second wiring terminal, the tenth relay, the eleventh relay and the twelfth relay; the fourth relay is respectively connected with the third wiring terminal, the fifth wiring terminal, the ninth relay and the eleventh relay; the fifth relay is respectively connected with a fifth wiring terminal and a seventh relay; the sixth relay is respectively connected with the fifth wiring terminal and the eighth relay; the seventh relay is connected with the fourth wiring terminal; the eighth relay is respectively connected with the fourth wiring terminal and the ninth relay; the ninth relay is connected with the fourth wiring terminal; the tenth relay is respectively connected with the fifth wiring terminal, the sixth wiring terminal and the twelfth relay; the eleventh relay is connected with the sixth wiring terminal and the seventh wiring terminal respectively; the twelfth relay is respectively connected with the third connecting terminal, the sixth connecting terminal and the seventh connecting terminal; the first wiring terminal is connected with the second wiring terminal.
10. The feeder automation action logic testing device of claim 9, wherein the third relay is model number LY4N, the fourth, fifth, sixth and tenth relays are model number LY2N, the seventh, eighth and ninth relays are model number G5V-2-H1-24DC, the eleventh and twelfth relays are model number DS2E-SL2-24 DC;
a ninth pin of the third relay is connected with a fourth pin of the first wiring terminal, a tenth pin of the third relay is connected with a third pin of the first wiring terminal, an eleventh pin of the third relay is connected with a second pin of the first wiring terminal, a twelfth pin of the third relay is connected with a second pin of the first wiring terminal, a seventh pin of the third relay is connected with a seventh pin of the second wiring terminal, an eighth pin of the third relay is connected with an eighth pin of the second wiring terminal, a thirteenth pin of the third relay is respectively connected with a fourteenth pin of the third relay and an eighth pin of the tenth relay, and a fourteenth pin of the third relay is respectively connected with a ninth pin of the twelfth relay and a tenth wiring terminal;
a seventh pin of the fourth relay is connected with an eighth pin of the fifth wiring terminal, an eighth pin of the fourth relay is connected with a seventh pin of the fifth wiring terminal, and a fourth pin of the fourth relay is respectively connected with a third pin of the third wiring terminal, a ninth pin of the ninth relay and a first pin of the eleventh relay;
a seventh pin of the fifth relay is connected with a sixth pin of the fifth wiring terminal, an eighth pin of the fifth relay is connected with a fifth pin of the fifth wiring terminal, and a third pin of the fifth relay is connected with an eighth pin of the seventh relay;
a seventh pin of the sixth relay is connected with a fourth pin of the fifth wiring terminal, an eighth pin of the sixth relay is connected with a third pin of the fifth wiring terminal, and a fourth pin of the sixth relay is connected with an eighth pin of the eighth relay;
a first pin of the seventh relay is connected with a tenth pin and an eleventh pin of the fourth wiring terminal respectively, and a sixteenth pin of the seventh relay is connected with a fourth pin, a ninth pin and a twelfth pin of the fourth wiring terminal respectively;
a first pin of the eighth relay is connected with a fifth pin and a sixth pin of the fourth wiring terminal respectively, a sixteenth pin of the eighth relay is connected with a fourth pin of the fourth wiring terminal respectively, and an eighth pin of the eighth relay is connected with a fourth pin of the sixth relay;
a first pin of the ninth relay is connected with a second pin of the fourth wiring terminal, a sixteenth pin of the ninth relay is respectively connected with the first pin of the ninth relay and a third pin of the fourth wiring terminal, and a ninth pin of the ninth relay is connected with a first pin of the eleventh relay;
a second pin of the tenth relay is respectively connected with all pins of the sixth wiring terminal and a thirteenth pin of the twelfth relay, a seventh pin of the tenth relay is connected with a second pin of the fifth wiring terminal, and an eighth pin of the tenth relay is connected with a first pin of the fifth wiring terminal;
a sixth pin of the eleventh relay is respectively connected with an eighth pin of the eleventh relay, a fifth pin of the seventh wiring terminal and a seventh pin of the seventh wiring terminal, and an eleventh pin and a thirteenth pin of the eleventh relay are respectively connected with all pins of the sixth wiring terminal;
a first pin of the twelfth relay is connected with a first pin of the third wiring terminal, and an eleventh pin of the twelfth relay is respectively connected with all pins of the sixth wiring terminal and a third pin of the seventh wiring terminal;
and the fifth pin, the sixth pin, the seventh pin and the eighth pin of the first wiring terminal are connected with the first pin, the second pin, the third pin and the fourth pin of the second wiring terminal in a one-to-one correspondence manner.
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| CN201921641674.4U CN210775706U (en) | 2019-09-29 | 2019-09-29 | Feeder automation action logic testing device |
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| CN201921641674.4U CN210775706U (en) | 2019-09-29 | 2019-09-29 | Feeder automation action logic testing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111766472A (en) * | 2020-06-28 | 2020-10-13 | 云南电网有限责任公司电力科学研究院 | Fault positioning system and method for low-resistance grounding power grid |
| CN112510642A (en) * | 2020-12-23 | 2021-03-16 | 广东电网有限责任公司佛山供电局 | Method for rapidly testing relay protection basic logic function of distribution network automation terminal |
| CN112540263A (en) * | 2020-11-18 | 2021-03-23 | 广西电网有限责任公司电力科学研究院 | Feeder automation logic operation and maintenance detection device and method |
| CN112924904A (en) * | 2021-02-23 | 2021-06-08 | 青岛鼎信通讯股份有限公司 | Aviation plug line sequence recognition tool suitable for feeder terminal |
| CN113064005A (en) * | 2021-03-22 | 2021-07-02 | 广东电网有限责任公司梅州供电局 | Feeder automation terminal tester |
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2019
- 2019-09-29 CN CN201921641674.4U patent/CN210775706U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111766472A (en) * | 2020-06-28 | 2020-10-13 | 云南电网有限责任公司电力科学研究院 | Fault positioning system and method for low-resistance grounding power grid |
| CN112540263A (en) * | 2020-11-18 | 2021-03-23 | 广西电网有限责任公司电力科学研究院 | Feeder automation logic operation and maintenance detection device and method |
| CN112510642A (en) * | 2020-12-23 | 2021-03-16 | 广东电网有限责任公司佛山供电局 | Method for rapidly testing relay protection basic logic function of distribution network automation terminal |
| CN112924904A (en) * | 2021-02-23 | 2021-06-08 | 青岛鼎信通讯股份有限公司 | Aviation plug line sequence recognition tool suitable for feeder terminal |
| CN113064005A (en) * | 2021-03-22 | 2021-07-02 | 广东电网有限责任公司梅州供电局 | Feeder automation terminal tester |
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