Control device and implementation method for forward and reverse installation of three-phase five-wire AC switch machine

Abstract

The invention relates to the technical field of traffic information engineering control, and is a control device and implementation method for forward and reverse installation of a three-phase five-wire AC switch. The former comprises a full-electronic turnout execution unit and an AC switch; an execution backboard outputs forward and reverse installation identification conditions to the full-electronic turnout execution unit; the full-electronic turnout execution unit collects the voltage and phase sequence of a three-phase action power input, and judges whether the phase sequence matches the received forward and reverse installation identification conditions; the invention adopts a full-electronic turnout execution unit to replace a traditional relay execution circuit, and manually sets identification conditions, and a CPU collects the line voltage and its sinusoidal waveform under the identification conditions to obtain a corresponding phase sequence judgment result, and performs a phase sequence correctness check. If the phase sequence is correct, it indicates that the phase sequence is consistent with the set identification conditions, thereby realizing the correct control and supervision function of an outdoor AC switch. The invention is simple to operate, uses a reference phase sequence judgment, and has a high fault tolerance rate.

Description

Technical Field

[0001] The invention relates to the technical field of traffic information engineering control, and in particular to a control device and implementation method for forward and reverse installation of a three-phase five-wire AC switch. Background Art

[0002] The AC switch is a mechatronic device in the railway signal control system that uses a three-phase AC power supply to perform turnout switching, mechanically lock the turnout, and provide the turnout opening position. The forward and reverse installation of the AC switch is used for the installation and wiring method of the left or right turnout to determine the turnout positioning and reverse position indication position according to the train control requirements for electrical wiring. With the position facing the turnout tip as the reference (opposite), the left turnout straight strand is positioned as forward (1, 3 contacts are closed), and the curved strand is positioned as reverse (2, 4 contacts are closed); the right turnout straight strand is positioned as reverse (2, 4 contacts are closed). The curved strand is positioned as forward (1, 3 contacts are closed); the main purpose of the forward and reverse installation of the AC switch is to control the rotation direction of the AC switch and the turnout reverse position indication position to be consistent. The main difference in the implementation method is not only the different outdoor installation, but also the change in the phase sequence of the three-phase power supply that causes the change in the motor rotation direction and the change in the definition of the turnout position reverse position.

[0003] The existing relay electrical execution circuit realizes the forward and reverse installation of the AC switch machine, such as Figure 8 As shown, the B and C phases of the output end of the phase-failure protector with phase sequence checking function are exchanged with the B and C phases of the start power input end of the turnout AC switch machine relay control indication circuit to achieve the purpose of phase exchange of B and C phases when reverse installation. At the same time, the output of the turnout AC switch machine control indication circuit and the AC switch machine input (X2~X3, X4~X5) are swapped and the diode is reversed to achieve the positive and reverse installation of the AC switch machine. The relay turnout execution circuit adopts phase exchange at the interface between the output end of the phase-failure protector and the starting circuit. Summary of the invention

[0004] The present invention provides a control device and implementation method for the forward and reverse installation of a three-phase five-wire AC switch, which overcomes the shortcomings of the above-mentioned prior art and can effectively solve the problems of complex operation and low fault tolerance in the traditional method of using relays to realize the forward and reverse installation of an outdoor AC switch and the inability to change phase at the input end.

[0005] To solve the above problems, one of the technical solutions of the present invention is realized in the following manner: a control device for forward and reverse installation of a three-phase five-wire AC switch machine, comprising a three-phase action power supply, a fully electronic turnout execution unit, an AC switch machine, and an execution backplane;

[0006] Three-phase action power input three-phase power to the full electronic turnout execution unit; the three-phase action power input mode includes three-phase power sequentially connected input and three-phase power BC phase switching connection input;

[0007] The execution back panel outputs the forward and reverse installation identification conditions to the full electronic turnout execution unit;

[0008] The fully electronic turnout execution unit collects the voltage and phase sequence of the three-phase action power input, determines whether the phase sequence matches the received forward and reverse installation identification conditions, and controls the output of the three-phase power supply, which is used to start and stop the reverse position of the outdoor AC switch machine.

[0009] The above-mentioned all-electronic turnout execution unit includes a voltage acquisition circuit 1, a voltage acquisition circuit 2, a control output module, a fixed position conversion module, and a CPU;

[0010] Voltage acquisition circuit 1 is used to collect the voltage U of the BC phase when the three-phase power supply is connected in sequence BC , and the voltage U of the CB phase after the BC phase of the three-phase power supply is commutated CB ;

[0011] Voltage acquisition circuit 2 is used to collect the voltage U of phase AB when the three-phase power supply is connected in sequence AB , and the voltage U of the AC phase after the three-phase power supply BC phase is commutated AC ;

[0012] The control output module is used to control the output of the three-phase action power supply and drive the start and stop of the three-phase motor of the outdoor AC switch machine;

[0013] The fixed-reverse position conversion module is used to control the forward and reverse rotation direction of the AC switch machine, and determines whether the AC switch machine will turn to the fixed position or the reverse position when the turnout is started; the X1-X5 lines are used to output the three-phase power supply to the AC switch machine through the fixed-reverse position conversion module; by switching the lines between the three-phase power supply input terminal, the fixed-reverse position conversion module output terminal and the AC switch machine input terminal, the forward and reverse installation of the AC switch machine and the corresponding three-phase power supply matching function during fixed-reverse position switching can be realized;

[0014] The CPU is used to receive the collection results of the voltage collection circuit 1 and the voltage collection circuit 2, as well as receive the forward and reverse installation identification conditions output by the execution backplane, and determine whether the voltage collection results match the received forward and reverse installation identification conditions; control the actions of the fixed and reverse position conversion module and the control output module.

[0015] The above-mentioned execution backplane includes identification condition 1 and identification condition 2; wherein identification condition 1 is outdoor upright installation, and outputs a low level; and identification condition 2 is outdoor reverse installation, and outputs a high level.

[0016] The second technical solution of the present invention is achieved in the following manner: a method for implementing forward and reverse installation of a three-phase five-wire AC switch includes the following steps:

[0017] The three-phase action power supply, the full-electronic turnout execution unit and the AC switch are connected in sequence; when the AC switch is installed in the forward direction, the execution backplane inputs identification condition 1 to the full-electronic turnout execution unit, the three phases of the three-phase action power supply are connected to the full-electronic turnout execution unit in sequence, and the corresponding full-electronic turnout execution unit X1-X5 lines are connected to the AC switch X1-X5 in sequence; when the AC switch is installed in the reverse direction, the execution backplane inputs identification condition 2 to the full-electronic turnout execution unit, the BC phases of the three-phase action power supply are connected to the full-electronic turnout execution unit in reverse phase, and the corresponding full-electronic turnout execution unit X2-X3 lines and X4-X5 lines are connected to the AC switch in a cross-switch manner;

[0018] The fully electronic turnout actuator unit verifies the correctness of the phase sequence of the operating power supply during forward and reverse installation;

[0019] If the verification is passed, the switch switching is allowed;

[0020] If the verification fails, switch switching is not allowed.

[0021] The above-mentioned all-electronic turnout actuator unit performs a correctness check on the phase sequence of the action power supply during forward and reverse installation, including:

[0022] When the CPU recognizes a low / high level signal, it executes the backplane output recognition condition 1 / 2, and the AC switch is installed forward / reverse outside the room;

[0023] The CPU collects the line voltage of the three-phase action power input in this state and performs integral calculation to determine whether the integral calculation result is greater than or equal to the standard threshold Lim;

[0024] If the response is yes, the phase sequence matches the state of the forward / reverse installation of the AC switch machine, that is, the phase sequence is correct;

[0025] If the response is no, the phase sequence does not match the forward / reverse installation state of the AC switch machine, that is, the phase sequence is disordered.

[0026] The CPU collects the voltage of the three-phase action power input in this state and performs calculation to determine whether the calculated value is greater than or equal to the standard threshold, including:

[0027] When the AC switch machine is installed, the three-phase power supply is connected in sequence, and the voltage collection circuit 2 and the voltage collection circuit 1 collect U point by point. AB and U BC , the voltage acquisition circuit 2 collects U AB Sine curve and voltage acquisition circuit - collected U BC The sinusoids are 120° out of phase, and U BCThe lag is 120°. At this time, the conditions for judging the correct phase sequence are:

[0028]

[0029] in, is the sine wave angle corresponding to the sampling point, Lim is the judgment threshold corresponding to the reference phase sequence;

[0030] When the AC switch is reversely installed, phases B and C are switched and connected, and the voltage acquisition circuit 2 collects U AC Sine curve and voltage acquisition circuit - collected U CB The sine curves are 120° out of phase, and U AC Lagging 120°; at this time, the correct condition for judging the phase sequence is:

[0031]

[0032] in, is the sine wave angle corresponding to the sampling point, and Lim is the judgment threshold corresponding to the reference phase sequence.

[0033] The present invention adopts a fully electronic turnout execution unit to replace the traditional relay execution circuit, sets the identification conditions manually, and the CPU collects the level signal of the identification conditions, manually determines the installation mode of the outdoor AC switch machine, and then collects the line voltage and its sine waveform under the identification conditions through the CPU to obtain the corresponding phase sequence judgment result, that is, the integral calculation result, and performs a phase sequence correctness check, and compares the integral calculation result with the threshold value to determine whether the phase sequence is correct. If the phase sequence is correct, it indicates that the phase sequence is consistent with the set identification conditions, thereby realizing the correct control and supervision function of the outdoor AC switch machine. The present invention is simple to operate, uses reference phase sequence judgment, and has a high fault tolerance rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0035] Figure 1 This is a circuit connection diagram of the AC switch machine in Example 1 of the present invention when it is properly installed.

[0036] Figure 2 This is a circuit connection diagram of the AC switch machine in embodiment 1 of the present invention when it is reversely installed.

[0037] Figure 3 This is a flow chart of the method of embodiment 2 of the present invention.

[0038] Figure 4 This is a flow chart of the method for checking the correctness of the phase sequence in Example 2 of the present invention.

[0039] Figure 5 This is a phase sequence diagram of the AC switch machine in embodiment 2 of the present invention when it is properly installed.

[0040] Figure 6 This is a phase sequence diagram of the AC switch machine when it is reversely installed in Example 2 of the present invention.

[0041] Figure 7 1 is a vector diagram of three-phase electricity in embodiment 2 of the present invention.

[0042] Figure 8 The present invention is a diagram showing the implementation of the forward and reverse installation of an existing AC switch in the background technology of the present invention. DETAILED DESCRIPTION

[0043] The present invention is not limited by the following embodiments, and specific implementation methods can be determined based on the technical solution of the present invention and actual conditions.

[0044] Example 1: Figure 1 , 2 As shown, the embodiment of the present invention discloses a control device for forward and reverse installation of a three-phase five-wire AC switch machine, including a three-phase action power supply, a full electronic turnout execution unit, an AC switch machine, and an execution backplane;

[0045] Three-phase action power input three-phase power to the full electronic turnout execution unit; the three-phase action power input mode includes three-phase power sequentially connected input and three-phase power BC phase switching connection input;

[0046] The execution back panel outputs the forward and reverse installation identification conditions to the full electronic turnout execution unit;

[0047] The fully electronic turnout execution unit collects the voltage and phase sequence of the three-phase action power input, determines whether the phase sequence matches the received forward and reverse installation identification conditions, and controls the output of the three-phase power supply, which is used to start and stop the reverse position of the outdoor AC switch machine.

[0048] The above three-phase action power supply can be provided to the full electronic turnout execution unit from the outside through the plug-in terminal, and is used as the driving power supply of the AC switch machine after calculation by the full electronic turnout execution unit.

[0049] like Figure 1 , 2 As shown, the full electronic turnout execution unit includes a voltage acquisition circuit 1, a voltage acquisition circuit 2, a control output module, a fixed and reverse position conversion module, and a CPU;

[0050] Voltage acquisition circuit 1 is used to collect the voltage U of the BC phase when the three-phase power supply is connected in sequence BC , and the voltage U of the CB phase after the BC phase of the three-phase power supply is commutated CB ;

[0051] Voltage acquisition circuit 2 is used to collect the voltage U of phase AB when the three-phase power supply is connected in sequence AB, and the voltage U of the AC phase after the three-phase power supply BC phase is commutated AC ;

[0052] The control output module is used to control the output of the three-phase action power supply and drive the start and stop of the three-phase motor of the outdoor AC switch machine;

[0053] The fixed-reverse position conversion module is used to control the forward and reverse rotation direction of the AC switch machine, and determines whether the AC switch machine will turn to the fixed position or the reverse position when the turnout is started; the X1-X5 lines are used to output the three-phase power supply to the AC switch machine through the fixed-reverse position conversion module; by switching the lines between the three-phase power supply input terminal, the fixed-reverse position conversion module output terminal and the AC switch machine input terminal, the forward and reverse installation of the AC switch machine and the corresponding three-phase power supply matching function during fixed-reverse position switching can be realized;

[0054] The CPU is used to receive the collection results of the voltage collection circuit 1 and the voltage collection circuit 2, as well as receive the forward and reverse installation identification conditions output by the execution backplane, and determine whether the voltage collection results match the received forward and reverse installation identification conditions; control the actions of the fixed and reverse position conversion module and the control output module.

[0055] Among them, if the voltage acquisition circuit 1 and the voltage acquisition circuit 2 cannot collect voltage, that is, the CPU cannot receive the voltage output by the voltage acquisition circuit 1 and the voltage acquisition circuit 2, it is considered that a phase failure problem occurs, and the phase failure can be judged accordingly.

[0056] Among them, the X1-X5 lines are used to connect the wiring terminals and cable lines between the fixed and reverse position conversion modules and the outdoor AC switch machines. They are used as power output drive lines during the switch conversion and as the switch position indication lines after the switch conversion is completed. When the AC switch machine is installed in the forward direction, the X1-X5 lines are sequentially wired at the wiring terminals. When the AC switch machine is installed in the reverse direction, the X2-X3 and X4-X5 lines are cross-connected at the wiring terminals. The "indication" in the indication line here is a special term for the switch, which refers to the specific position of the AC switch machine, that is, the positioning, reverse position, and four-open position of the AC switch machine are collectively referred to as indication.

[0057] Among them, the forward and reverse installation of the AC switch machine is a manually set process. The present invention sets the identification conditions. The CPU decides the corresponding phase sequence identification method based on the identified forward and reverse installation information, and then determines whether the phase sequence matches the identified forward and reverse installation method. Then, the corresponding three-phase input power supply and the connection method of the X1-X5 lines are adjusted according to the forward and reverse installation status, thereby achieving the purpose of determining the installation method of the outdoor AC switch machine according to the design requirements.

[0058] Among them, the fixed-reverse position conversion module can be composed of a switch, which is connected to the CPU to determine whether the three-phase motor of the AC switch machine is rotated forward or reversely. Forward rotation means positioning rotation, and reverse rotation means reverse position rotation. Specifically, when converting to positioning, the fixed-reverse position conversion module selects the three-phase electricity from the X1, X2, and X5 lines to the three-phase motor of the AC switch machine, so that the three-phase motor rotates forward; when converting to reverse position, the fixed-reverse position conversion module selects the three-phase electricity from the X1, X3, and X4 lines to the three-phase motor of the AC switch machine, so that the AC switch machine motor reverses.

[0059] like Figure 1 , 2 As shown, the execution backplane includes identification condition 1 and identification condition 2; wherein identification condition 1 is outdoor upright installation, and outputs a low level; identification condition 2 is outdoor reverse installation, and outputs a high level.

[0060] Among them, the identification conditions of the execution backplane can be realized by relays, jumper terminals, optical couplers, etc. The execution backplane is connected to the CPU through plug-in terminals, and the forward and reverse installation conditions are set for CPU identification. When the identification condition selects identification condition 1 (default condition), the CPU collects a low level signal and considers that the outdoor AC switch is in the forward installation mode; when the identification condition selects identification condition 2, the CPU collects a high level signal and considers that the outdoor AC switch is in the reverse installation mode.

[0061] Example 2: Figure 3 As shown, the embodiment of the present invention discloses a method for implementing forward and reverse installation of a three-phase five-wire AC switch, comprising the following steps:

[0062] S101, the three-phase action power supply, the full electronic turnout execution unit and the AC switch are connected in sequence; wherein, when the AC switch is installed in the forward direction, the execution backplane inputs identification condition 1 to the full electronic turnout execution unit, the three phases of the three-phase action power supply are connected to the full electronic turnout execution unit in sequence, and the corresponding full electronic turnout execution unit X1-X5 lines are connected to the AC switch X1-X5 in sequence; when the AC switch is installed in the reverse direction, the execution backplane inputs identification condition 2 to the full electronic turnout execution unit, the BC phases of the three-phase action power supply are connected to the full electronic turnout execution unit in reverse phase, and the corresponding full electronic turnout execution unit X2-X3 lines and X4-X5 lines are connected to the AC switch in a cross-switch manner;

[0063] S102, the fully electronic turnout actuator unit checks the correctness of the phase sequence of the action power supply during forward and reverse installation;

[0064] S103, verification passed, turnout switching allowed;

[0065] S104, verification failed, turnout switching is not allowed.

[0066] In the above step S101, when the AC switch machine is installed forwardly, the three phases of the three-phase action power supply are connected to the full-electronic turnout actuator unit in sequence, and the corresponding X1-X5 lines of the full-electronic turnout actuator unit are connected to the AC switch machine in sequence. At this time, the diode is forwardly connected in the circuit; when the AC switch machine is installed reversely, the BC phases of the three-phase action power supply are connected to the full-electronic turnout actuator unit in reverse phase, and the corresponding X2-X3 lines and X4-X5 lines of the full-electronic turnout actuator unit are cross-connected with the AC switch machine. At this time, the diode is reversely connected in the circuit.

[0067] like Figure 4 As shown, in the above step S102, the fully electronic turnout execution unit performs a correctness check on the phase sequence of the action power supply during forward and reverse installation, including:

[0068] S1021, the CPU recognizes a low / high level signal, that is, the backplane output recognition condition 1 / 2 is executed, and the AC switch machine is installed forward / reverse outdoors;

[0069] S1022, the CPU collects the line voltage of the three-phase action power input in this state and performs integral calculation to determine whether the integral calculation result is greater than or equal to the standard threshold Lim;

[0070] S1023, if the response is yes, the phase sequence matches the state of the forward / reverse installation of the AC switch machine, that is, the phase sequence is correct;

[0071] S1024, if the response is no, the phase sequence does not match the forward / reverse installation state of the AC switch machine, that is, the phase sequence is disordered.

[0072] like Figure 7 As shown, for ease of understanding, the present invention makes the following judgment when judging the phase sequence matching: for the input three-phase power supply, the voltage acquisition circuit 1 and the voltage acquisition circuit 2 of the full electronic turnout execution unit only collect the two line voltages and sine waveforms. At this time, the input power collected during the installation is the line voltage U AB , U BC , voltage acquisition circuit - acquisition U BC , voltage acquisition circuit 2 acquisition U AB , the phase sequence rotates clockwise. According to the relationship between line voltage and phase voltage, that is, line voltage = phase voltage × √3‌, the corresponding phase voltage can be converted; after reverse phase switching, the input power of the three-phase power supply is the line voltage U AC , U CB , voltage acquisition circuit - acquisition U CB , voltage acquisition circuit 2 acquisition U AC , the phase sequence rotates counterclockwise, and the phase angle difference is 180 degrees.

[0073] Three-phase power supply voltage U AB , U BC , U CAThere is a 120° phase difference between them. When phases B and C are swapped, the voltage collected by the actual voltage collection circuit 2 is U AB Replace with U AC The voltage collected by the voltage collection circuit is U BC Replace with U CB , and U AC with U CA There is a 180° difference between them, U BC with U CB There is a difference of 180° between them.

[0074] The fully electronic turnout execution unit calculates the voltage sampling value, that is, the line voltage, replaces the judgment of the 120° angle with the integral calculation result, and compares it with the standard threshold to achieve the purpose of phase sequence inspection.

[0075] In the above step S1022, the CPU collects the voltage of the three-phase action power input in this state and calculates it to determine whether the calculated value is greater than or equal to the standard threshold, including:

[0076] When the AC switch machine is installed, Figure 5 As shown, the three-phase power supply is connected in sequence, and the voltage acquisition circuit 2 and the voltage acquisition circuit 1 collect U point by point. AB and U BC , the voltage acquisition circuit 2 collects U AB Sine curve and voltage acquisition circuit - collected U BC The sinusoids are 120° out of phase, and U BC Lag 120 º At this time, the conditions for judging the correct phase sequence are:

[0077]

[0078] in, is the sine wave angle corresponding to the sampling point, Lim is the judgment threshold corresponding to the reference phase sequence;

[0079] When the AC switch machine is reversely installed, Figure 6 As shown, phases B and C are connected in phase, and the voltage acquisition circuit 2 collects U AC Sine curve and voltage acquisition circuit - collected U CB The sine curves are 120° out of phase, and U AC Lagging 120°; at this time, the correct condition for judging the phase sequence is:

[0080]

[0081] in, is the sine wave angle corresponding to the sampling point, and Lim is the judgment threshold corresponding to the reference phase sequence.

[0082] The above integral calculation results of the phase sequence during forward and reverse installation are theoretically unchanged if the three-phase electricity does not change, and are greater than or equal to the threshold Lim. In this case, the phase sequence is considered to be correct.

[0083] In the above step S1024, when the phase sequence is disordered, the judgment result of the phase sequence during forward and reverse installation, that is, the integral calculation result, will change and be less than the threshold value Lim, specifically:

[0084] If the AC switch machine is in the normal state, but the B and C phases are switched, the waveform actually collected at the original collection point remains the same. Figure 6 As shown, the judgment condition for the correct phase sequence will remain the judgment condition when the AC switch machine is properly installed, that is,

[0085]

[0086] Similarly, if the AC switch is in reverse installation, but the ABC three-phase power supply is connected in sequence, the waveform actually collected at the original collection point remains the same. Figure 5 As shown, however, the judgment condition for the correct phase sequence will remain the judgment condition when the AC switch machine is reversely installed, that is,

[0087]

[0088] Under the judgment conditions of these two cases, the integral calculation result will be smaller than the threshold value Lim, and then the fully electronic turnout execution unit will obtain the judgment result of phase sequence disorder, thereby realizing the inspection of the phase sequence of the three-phase power supply by the fully electronic turnout execution unit.

[0089] The three-phase sequence of the three-phase action power supply can be A, B, C or C, B, A, and the phase sequence identification is not limited to U AB with U BC , which can be determined by any two-phase line voltage.

[0090] Therefore, when the present invention performs the correct verification of the forward and reverse phase sequence, by setting the identification condition 1 and the identification condition 2, specifically:

[0091] 1. If it is set to identification condition 1, when the integral calculation result collected and calculated by the CPU is greater than or equal to the standard threshold Lim, that is, the phase sequence waveform corresponding to the integral calculation result is the waveform when it is installed normally, it proves that the phase sequence at this time matches the identification condition 1 and the phase sequence is correct;

[0092] 2. If it is set to identification condition 1, when the integral calculation result collected and calculated by the CPU is less than the standard threshold Lim, that is, the phase sequence waveform corresponding to the integral calculation result is the waveform when reversed, it proves that the phase sequence does not match the identification condition 1 at this time, and the phase sequence is disordered;

[0093] 3. If it is set to identification condition 2, when the integral calculation result collected and calculated by the CPU is greater than or equal to the standard threshold Lim, that is, the phase sequence waveform corresponding to the integral calculation result is the waveform when reversed, it proves that the phase sequence at this time matches the identification condition 2 and the phase sequence is correct;

[0094] 4. If it is set to identification condition 2, when the integral calculation result collected and calculated by the CPU is less than the standard threshold Lim, that is, the phase sequence waveform corresponding to the integral calculation result is the waveform when it is normally installed, it proves that the phase sequence at this time does not match the identification condition 1 and the phase sequence is disordered.

[0095] In summary, the present invention adopts a fully electronic turnout execution unit to replace the traditional relay execution circuit, manually sets the identification conditions, the CPU collects the level signal of the identification conditions, manually determines the installation method of the outdoor AC switch machine, and then collects the line voltage and its sine waveform under the identification conditions through the CPU to obtain the corresponding phase sequence judgment result, that is, the integral calculation result, and performs a phase sequence correctness check. The integral calculation result is compared with the threshold to determine whether the phase sequence is correct. If the phase sequence is correct, it indicates that the phase sequence is consistent with the set identification conditions, thereby realizing the correct control and supervision function of the outdoor AC switch machine. The present invention is simple to operate, uses a reference phase sequence judgment, and has a high fault tolerance rate.

Claims

1. A control device for forward and reverse installation of a three-phase five-wire AC switch, characterized in that: It includes three-phase action power supply, full electronic turnout execution unit, AC switch machine and execution backplane; Three-phase action power input three-phase power to the full electronic turnout execution unit; the three-phase action power input mode includes three-phase power sequentially connected input and three-phase power BC phase switching connection input; The execution back panel outputs the forward and reverse installation identification conditions to the full electronic turnout execution unit; The fully electronic turnout execution unit collects the voltage and phase sequence of the three-phase action power input, determines whether the phase sequence matches the received forward and reverse installation identification conditions, and controls the output of the three-phase power supply to start and stop the reverse position of the outdoor AC switch machine; The full electronic turnout execution unit includes a voltage acquisition circuit 1, a voltage acquisition circuit 2, a control output module, a fixed position conversion module, and a CPU; Voltage acquisition circuit 1 is used to collect the voltage U of the BC phase when the three-phase power supply is connected in sequence BC , and the voltage U of the CB phase after the BC phase of the three-phase power supply is commutated CB ; Voltage acquisition circuit 2 is used to collect the voltage U of phase AB when the three-phase power supply is connected in sequence AB , and the voltage U of the AC phase after the three-phase power supply BC phase is commutated AC ; The control output module is used to control the output of the three-phase action power supply to drive the start and stop of the three-phase motor of the outdoor AC switch machine; The fixed-reverse position conversion module is used to control the forward and reverse rotation direction of the AC switch machine, and determines whether the AC switch machine will turn to the fixed position or the reverse position when the turnout is started; the X1-X5 lines are used to output the three-phase power supply to the AC switch machine through the fixed-reverse position conversion module; by switching the lines between the three-phase power supply input terminal, the fixed-reverse position conversion module output terminal and the AC switch machine input terminal, the forward and reverse installation of the AC switch machine and the corresponding three-phase power supply matching function during fixed-reverse position switching can be realized; The CPU is used to receive the collection results of the voltage collection circuit 1 and the voltage collection circuit 2, as well as receive the forward and reverse installation identification conditions output by the execution backplane, and determine whether the voltage collection results match the received forward and reverse installation identification conditions; control the actions of the fixed and reverse position conversion module and the control output module.

2. A control device for forward and reverse installation of a three-phase five-wire AC switch according to claim 1, characterized in that: The execution backplane includes identification condition 1 and identification condition 2; identification condition 1 is outdoor upright installation, outputting a low level; identification condition 2 is outdoor reverse installation, outputting a high level.

3. A method for implementing a control device for forward and reverse installation of a three-phase five-wire AC switch machine according to any one of claims 1 to 2, characterized in that: The following steps are involved: The three-phase action power supply, the full-electronic turnout execution unit and the AC switch are connected in sequence; when the AC switch is installed in the forward direction, the execution backplane inputs identification condition 1 to the full-electronic turnout execution unit, the three phases of the three-phase action power supply are connected to the full-electronic turnout execution unit in sequence, and the corresponding full-electronic turnout execution unit X1-X5 lines are connected to the AC switch X1-X5 in sequence; when the AC switch is installed in the reverse direction, the execution backplane inputs identification condition 2 to the full-electronic turnout execution unit, the BC phases of the three-phase action power supply are connected to the full-electronic turnout execution unit in reverse phase, and the corresponding full-electronic turnout execution unit X2-X3 lines and X4-X5 lines are connected to the AC switch in a cross-switch manner; The fully electronic turnout actuator unit verifies the correctness of the phase sequence of the operating power supply during forward and reverse installation; If the verification is passed, the switch switching is allowed; If the verification fails, switch switching is not allowed.

4. The method for realizing forward and reverse installation of a three-phase five-wire AC switch according to claim 3 is characterized in that: The fully electronic turnout execution unit performs a correctness check on the phase sequence of the action power supply during forward and reverse installation, including: When the CPU recognizes a low / high level signal, it executes the backplane output recognition condition 1 / 2, and the AC switch is installed forward / reverse outside the room; The CPU collects the line voltage of the three-phase action power input in the low / high level signal state and performs integral calculation to determine whether the integral calculation result is greater than or equal to the standard threshold Lim; If the response is yes, the phase sequence matches the state of the forward / reverse installation of the AC switch machine, that is, the phase sequence is correct; If the response is no, the phase sequence does not match the forward / reverse installation state of the AC switch machine, that is, the phase sequence is disordered.

5. The method for realizing forward and reverse installation of a three-phase five-wire AC switch according to claim 4 is characterized in that: The CPU collects and calculates the voltage of the three-phase action power input in the low / high level signal state, and determines whether the calculated value is greater than or equal to the standard threshold, including: When the AC switch machine is installed, the three-phase power supply is connected in sequence, and the voltage collection circuit 2 and the voltage collection circuit 1 collect U point by point. AB and U BC , the voltage acquisition circuit 2 collects U AB Sine curve and voltage acquisition circuit - collected U BC The sinusoids are 120° out of phase, and U BC The lag is 120°. At this time, the conditions for judging the correct phase sequence are: in, is the sine wave angle corresponding to the sampling point, Lim is the judgment threshold corresponding to the reference phase sequence; When the AC switch is reversely installed, phases B and C are switched and connected, and the voltage acquisition circuit 2 collects U AC Sine curve and voltage acquisition circuit - collected U CB The sine curves are 120° out of phase, and U AC Lagging 120°; at this time, the correct condition for judging the phase sequence is: in, is the sine wave angle corresponding to the sampling point, and Lim is the judgment threshold corresponding to the reference phase sequence.

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