Power collection method and device for three-phase five-wire AC switch machine with forward and reverse installation

Abstract

The invention relates to the technical field of power collection, and is a power collection method and device for forward and reverse installation of a three-phase five-wire AC switch, the latter comprising a three-phase action power supply, a full electronic turnout execution unit, an execution backplane and an AC switch, the three-phase action power supply outputs a three-phase power supply to the full electronic turnout execution unit; the full electronic turnout execution unit comprises a current collection unit, a voltage collection unit and a CPU; the invention obtains a phase angle by collecting the voltage and current at the input end of the three-phase action power supply, matches the phase angle with an identification condition, if the phase angle and the identification condition are inconsistent, converts and calculates the collected phase angle according to a vector relationship, and then obtains the corresponding power according to a power calculation formula for forward and reverse installation, thereby, the invention performs conversion through the power relationship of forward and reverse installation, does not need to distinguish the timing relationship between voltage and current under the forward and reverse installation conditions, and has a simple implementation method.

Description

Technical Field

[0001] The present invention relates to the technical field of power collection, and in particular to a power collection method and device for a three-phase five-wire AC switch machine installed forward and reverse. Background Art

[0002] The AC switch machine is a mechatronic device in the railway signal control system that uses a three-phase AC power supply to perform switch conversion, mechanically lock the switch and provide the switch opening position. By controlling it, the purpose of operating the outdoor switch to open to the specified position is achieved.

[0003] The scheme of realizing power collection by the relay electrical execution circuit mainly relies on the signal centralized monitoring system to collect the three-phase current when the switch machine operates the switch through the current sensor and the switch power collector. Figure 6 As shown in the acquisition principle diagram, the current sensor is connected in series between the back stage of the turnout phase protection device (DBQ) and the 1DQJ (1DQJF) wiring to measure the three-phase current and action time of the electric switch. The voltage is collected in a high-resistance and optical isolation manner to ensure reliable electrical isolation between the collection unit and the monitored equipment. The turnout power collector converts the collected voltage and current into power and displays it in the form of a curve graph.

[0004] Existing power collection uses external collection equipment for collection, which cannot achieve the effect of the integrated control unit of the turnout module independently collecting power under different conditions of forward and reverse installation. Summary of the invention

[0005] The present invention provides a power collection method and device for a three-phase five-wire AC switch in forward and reverse installation, which overcomes the shortcomings of the above-mentioned prior art and can effectively solve the problem that the existing method of collecting power through an external collection device cannot independently collect power under forward and reverse installation conditions of the turnout.

[0006] To solve the above problems, one of the technical solutions of the present invention is implemented in the following way: a power collection method for forward and reverse installation of a three-phase five-wire AC switch, comprising the following steps:

[0007] Collect the voltage, current and sine curve of the three-phase power supply: the collected voltage includes the U collected by the AB phase line voltage collection circuit AB , BC phase line voltage acquisition circuit collects U BC , AC phase line voltage acquisition circuit collects U AC , U collected by CB phase line voltage collection circuit CB ; The collected current includes the current Ia collected by the A-phase current collection circuit, the current Ib collected by the B-phase current collection circuit, and the current Ic collected by the C-phase current collection circuit;

[0008] Acquisition of phase angle: Based on the sinusoidal curve of voltage and current, the time difference between the zero crossing points of line voltage and current is collected and converted into a phase angle ,Here, the phase angle is collected without distinguishing between the forward and reverse installation conditions, and is collected according to the forward installation;

[0009] Output identification conditions: The identification conditions include identification condition 1, the AC switch machine is installed upright outdoors; and identification condition 2, the AC switch machine is installed reversely outdoors;

[0010] According to the result of the output identification condition, it is judged whether the AC switch machine is installed in the normal state outdoors; if the response is yes, the corresponding power factor is directly calculated with the collected phase angle; if the response is no, the collected phase angle is converted according to the vector relationship to calculate the corresponding reverse installation power factor, and the power of the AC switch machine in the normal and reverse installation is calculated;

[0011] Among them, when the AC switch machine is installed properly, the equation for calculating the power factor based on the phase angle is as follows:

[0012] ,

[0013] is the power factor, which is the cosine of the phase angle between the line voltage and the line current;

[0014] Among them, when the AC switch machine is reversed, the equation for calculating the power factor based on the phase angle is as follows:

[0015] .

[0016] The above includes: When the AC switch machine is installed properly, the line voltage U AB , U BC With phase voltage U A , U B , U C The vector relationship is:

[0017] ,

[0018] ,

[0019] The calculation process of the three-phase motor power when installed properly is:

[0020] ,

[0021] ,

[0022] When the three-phase power supply A, B, and C are balanced:

[0023] ,

[0024] Where Pa is the power of phase A, Pb is the power of phase B, Pc is the power of phase C, and U AB is the line voltage collected by the AB phase line voltage collection circuit, U BC is the line voltage collected by the BC phase line voltage collection circuit, Ia is the current collected by the A phase current collection circuit, and Ib is the current collected by the B phase current collection circuit.

[0025] The above includes: When the AC switch is reversely installed, the line voltage U AC , U CB With phase voltage U A , U B , U C The vector relationship is:

[0026] ,

[0027] ,

[0028] The calculation process of power when reverse installed is:

[0029] ,

[0030] ,

[0031] When the three-phase power supply A, B, and C are balanced:

[0032] ,

[0033] When the three-phase power supply A, B, and C are unbalanced:

[0034] ,

[0035] Where Pa is the power of phase A, Pb is the power of phase B, Pc is the power of phase C, and U AC is the line voltage collected by the AC phase line voltage collection circuit, U CB is the line voltage collected by the CB phase line voltage collection circuit, Ia is the current collected by the A phase current collection circuit, and Ic is the current collected by the C phase current collection circuit.

[0036] The second technical solution of the present invention is realized by the following method: a power collection device for a three-phase five-wire AC switch machine with forward and reverse installation, including a three-phase action power supply, a full electronic turnout execution unit, an execution backplane and an AC switch machine, wherein the three-phase action power supply outputs a three-phase power supply to the full electronic turnout execution unit; the full electronic turnout execution unit includes a current collection unit, a voltage collection unit and a CPU;

[0037] A current acquisition unit collects and outputs the current value of the three-phase power supply; the collected current includes the current Ia collected by the A-phase current acquisition circuit, the current Ib collected by the B-phase current acquisition circuit, and the current Ic collected by the C-phase current acquisition circuit;

[0038] The voltage acquisition unit collects the line voltage value between two phases of the three-phase power supply and outputs it; wherein the collected line voltage includes the U collected by the AB phase line voltage acquisition circuit AB , BC phase line voltage acquisition circuit collects U BC , AC phase line voltage acquisition circuit collects U AC , U collected by CB phase line voltage collection circuit CB ;

[0039] Phase angle acquisition unit, collects phase angle: collects the time difference between the zero crossing point of line voltage and current according to the sinusoidal curve of voltage and current and converts it into phase angle ,Here, the phase angle is collected without distinguishing between the forward and reverse installation conditions, and is collected according to the forward installation;

[0040] The backplane is executed to output identification conditions; the identification conditions include identification condition 1, the AC switch machine is installed upright outdoors; and identification condition 2, the AC switch machine is installed reversely outdoors;

[0041] The CPU determines whether the AC switch is installed normally outdoors based on the result of the output identification condition; if the response is yes, the corresponding power factor is directly calculated using the collected phase angle; if the response is no, the collected phase angle is converted based on the vector relationship to calculate the corresponding reverse installation power factor, and the power of the AC switch when installed normally or reversely is calculated.

[0042] The above-mentioned all-electronic turnout execution unit also includes a control output module and a fixed and reverse position conversion module;

[0043] The control output module is connected to the output end of the three-phase action power supply, controls the output of the three-phase action power supply, and drives the start and stop of the three-phase motor of the outdoor AC switch machine;

[0044] The fixed / reverse position conversion module is used to select the output direction and determine whether the AC switch machine rotates in the fixed / reverse position.

[0045] The above also includes X1-X5 lines, which are used to connect the full electronic turnout execution unit with the AC switch machine, serve as power output drive lines during turnout switching, and serve as turnout position indication lines after the turnout switching is completed.

[0046] Compared with the prior art, the present invention has the following advantages:

[0047] 1. The present invention acquires the phase angle by collecting the voltage and current at the input end of the three-phase action power supply, and matches the phase angle with the identification condition. If the phase angle is consistent with the identification condition, the corresponding power is obtained according to the power calculation formula of the forward and reverse installation. If the phase angle is inconsistent with the identification condition, the collected phase angle is converted and calculated according to the vector relationship, and then the corresponding power is obtained according to the power calculation formula of the forward and reverse installation. Therefore, the present invention converts through the power relationship of the forward and reverse installation, and does not need to distinguish the timing relationship between the voltage and current under the forward and reverse installation conditions. The implementation method is simple, and no external collection equipment is required, and the power collection of the turnout under the forward and reverse installation conditions can be realized.

[0048] 2. The device of the present invention has a simple structure. By treating the full electronic turnout actuator unit as a whole, without changing the internal wiring and circuit, only by changing the line between the three-phase action power input terminal and the full electronic turnout actuator unit output terminal, the instantaneous power parameter collection and calculation after the forward and reverse function conversion of the AC switch machine can be realized.

[0049] 3. The fully electronic turnout execution unit of the present invention adopts computer control technology to replace the existing relay execution circuit, realizes the control and supervision function of the outdoor AC switch machine, and achieves the purpose of manipulating the outdoor turnout to the specified position. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The specific implementation modes of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0051] Figure 1 This is a flow chart of the method of Example 1 of the present invention.

[0052] Figure 2 1 is a vector diagram of voltage and current when the AC switch machine is properly installed in Example 1 of the present invention.

[0053] Figure 3 1 is a vector diagram of voltage and current when the AC switch machine is reversely installed in Example 1 of the present invention.

[0054] Figure 4 This is a circuit connection diagram of the AC switch machine in Example 2 of the present invention when it is properly installed.

[0055] Figure 5 This is a circuit connection diagram of the AC switch machine when it is reversely installed in Example 2 of the present invention.

[0056] Figure 6 This is a collection principle diagram of the prior art in the background technology of the present invention. DETAILED DESCRIPTION

[0057] 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.

[0058] Example 1: Figure 1 As shown, the embodiment of the present invention discloses a power collection method for a three-phase five-wire AC switch machine in forward and reverse installation, comprising the following steps:

[0059] S101, collecting voltage values, current values ​​and sine curves of the three-phase power supply: the collected voltage includes the U collected by the AB phase line voltage collection circuit AB , BC phase line voltage acquisition circuit collects U BC , AC phase line voltage acquisition circuit collects U AC , U collected by CB phase line voltage collection circuit CB ; The collected current includes the current Ia collected by the A-phase current collection circuit, the current Ib collected by the B-phase current collection circuit, and the current Ic collected by the C-phase current collection circuit;

[0060] S102, collecting phase angle: collecting the time difference between the zero-crossing points of the line voltage and current according to the sinusoidal curve of the voltage and current and converting it into a phase angle ,Here, the phase angle is collected without distinguishing between the forward and reverse installation conditions, and is collected according to the forward installation;

[0061] S103, outputting identification conditions: wherein the identification conditions include identification condition 1, the AC switch machine is installed upright outdoors; and identification condition 2, the AC switch machine is installed reversely outdoors;

[0062] S104, judging whether the AC switch machine is installed in the normal state outdoors according to the result of the output identification condition; if the response is yes, directly calculating the corresponding power factor with the collected phase angle; if the response is no, converting the collected phase angle according to the vector relationship to calculate the corresponding power factor of reverse installation, and calculating the power of the AC switch machine in the normal and reverse installation;

[0063] Among them, when the AC switch machine is installed properly, the equation for calculating the power factor based on the phase angle is as follows:

[0064] ,

[0065] is the power factor, which is the cosine of the phase angle between the line voltage and the line current;

[0066] Among them, when the AC switch machine is reversed, the equation for calculating the power factor based on the phase angle is as follows:

[0067] .

[0068] Above It is the main parameter for calculating the forward and reverse power of AC switch machine. Figure 2 From the vector diagram, we can see that if we define U A With Ia, U BThe phase angle between Ib and , then when the AC switch machine is properly installed, the corresponding power factor is:

[0069] ,

[0070] When the AC switch machine is reversely installed, the phase sequence rotates counterclockwise, and the corresponding power factor should be: .

[0071] Among them, when the AC switch machine is installed properly, the vector diagram of voltage and current is as follows: Figure 2 As shown, the power is calculated as follows: When the AC switch machine is installed properly, the line voltage U AB , U BC With phase voltage U A , U B , U C The vector relationship is: ,

[0072] ,

[0073] The calculation process of the three-phase motor power when installed properly is:

[0074] ,

[0075] ,

[0076] When the three-phase power supply A, B, and C are balanced:

[0077] ,

[0078] Where Pa is the power of phase A, Pb is the power of phase B, Pc is the power of phase C, and U AB is the line voltage collected by the AB phase line voltage collection circuit, U BC is the line voltage collected by the BC phase line voltage collection circuit, Ia is the current collected by the A phase current collection circuit, and Ib is the current collected by the B phase current collection circuit.

[0079] When the AC switch is reversely installed, the vector diagram of voltage and current is as follows: Figure 3 As shown, the power is calculated as follows: When the AC switch is reversely installed, the line voltage U AC , U CB With phase voltage U A , U B , U C The vector relationship is:

[0080] ,

[0081] ,

[0082] The calculation process of power when reverse installed is:

[0083] ,

[0084] ,

[0085] When the three-phase power supply A, B, and C are balanced:

[0086] ,

[0087] When the three-phase power supply A, B, and C are unbalanced:

[0088] ,

[0089] Where Pa is the power of phase A, Pb is the power of phase B, Pc is the power of phase C, and U AC is the line voltage collected by the AC phase line voltage collection circuit, U CB is the line voltage collected by the CB phase line voltage collection circuit, Ia is the current collected by the A phase current collection circuit, and Ic is the current collected by the C phase current collection circuit.

[0090] The phase angle is calculated Then, according to formula (1) and formula (2), we can get The power relationship between forward and reverse installation for reference;

[0091] If the identification condition is identification condition 1, and the phase angle is the phase angle when it is installed normally, the final power when it is installed normally is calculated according to the above formula;

[0092] If the identification condition is identification condition 2, and the phase angle is the phase angle of the normal installation, then the phase angle is corrected, that is, the current collected by the C phase current in the normal installation is matched to the B phase current in the reverse installation, and the final power in the reverse installation is calculated according to the above formula.

[0093] The present invention collects the U through the AB phase line voltage collection circuit AB , BC phase line voltage acquisition circuit collects U BC , and the AC phase line voltage acquisition circuit after B and C phase switching collects U AC , U collected by CB phase line voltage collection circuit CB ; According to the relationship between line voltage and phase voltage, that is, line voltage = phase voltage × √3‌, the corresponding phase voltage can be converted.

[0094] The reason why the present invention converts the collected phase angle according to the vector relationship is that when the AC switch is installed forward or reverse, the collected voltage and current values ​​are real values, but since the phase sequence of the forward and reverse installation rotates counterclockwise after B and C are switched, U AB, U BC with U AC , U CB The phase angles between them differ by 180°, resulting in different phase angles between voltage and current. Therefore, the present invention converts the collected phase angles through vector relationship and performs phase angle correction, thereby realizing the phase angle calculation when the AC switch is installed forward and reverse.

[0095] Example 2: Figure 4-5 As shown, the embodiment of the present invention discloses a power collection device for a three-phase five-wire AC switch machine installed forwardly and reversely, including a three-phase action power supply, a full electronic turnout execution unit, an execution backplane and an AC switch machine, wherein the three-phase action power supply outputs a three-phase power supply to the full electronic turnout execution unit; the full electronic turnout execution unit includes a current collection unit, a voltage collection unit and a CPU;

[0096] A current acquisition unit collects and outputs the current value of the three-phase power supply; the collected current includes the current Ia collected by the A-phase current acquisition circuit, the current Ib collected by the B-phase current acquisition circuit, and the current Ic collected by the C-phase current acquisition circuit;

[0097] The voltage acquisition unit collects the line voltage value between two phases of the three-phase power supply and outputs it; wherein the collected line voltage includes the U collected by the AB phase line voltage acquisition circuit AB , BC phase line voltage acquisition circuit collects U BC , AC phase line voltage acquisition circuit collects U AC , U collected by CB phase line voltage collection circuit CB ;

[0098] Phase angle acquisition unit, collects phase angle: collects the time difference between the zero crossing point of line voltage and current according to the sinusoidal curve of voltage and current and converts it into phase angle ,Here, the phase angle is collected without distinguishing between the forward and reverse installation conditions, and is collected according to the forward installation;

[0099] The backplane is executed to output identification conditions; the identification conditions include identification condition 1, the AC switch machine is installed upright outdoors; and identification condition 2, the AC switch machine is installed reversely outdoors;

[0100] The CPU determines whether the AC switch is installed normally outdoors based on the result of the output identification condition; if the response is yes, the corresponding power factor is directly calculated using the collected phase angle; if the response is no, the collected phase angle is converted based on the vector relationship to calculate the corresponding reverse installation power factor, and the power of the AC switch when installed normally or reversely is calculated.

[0101] Among them, the internal working power supply VCC of the full electronic turnout execution unit module is a DC 5V power supply, and GND: the power ground of the module working power supply VCC.

[0102] Among them, the execution backplane and the full-electronic turnout execution unit can be connected together through plug-in terminals. When the execution backplane outputs identification condition 1, the corresponding CPU recognizes a low level. When the execution backplane outputs identification condition 2, the corresponding CPU recognizes a high level. This makes it easy for the CPU to judge the received identification conditions, thereby judging the forward or reverse installation of the outdoor AC switch machine.

[0103] like Figure 4-5 As shown, the fully electronic turnout execution unit also includes a control output module and a fixed and reverse position conversion module;

[0104] The control output module is connected to the output end of the three-phase action power supply, controls the output of the three-phase action power supply, and drives the start and stop of the three-phase motor of the outdoor AC switch machine;

[0105] The fixed / reverse position conversion module is used to select the output direction and determine whether the AC switch machine rotates in the fixed / reverse position.

[0106] Among them, the fixed-reverse position conversion module continuously monitors the position of the AC switch through the X1-X5 line and the diode after the AC switch is completed, and outputs it to the CPU.

[0107] 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 rotates forward or reverse. 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 output 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 output to the three-phase motor of the AC switch machine, so that the AC switch machine motor reverses.

[0108] like Figure 4-5 As shown, it also includes X1-X5 lines, which are used to connect the full electronic turnout execution unit and the AC switch machine. They serve as the power output drive line during the turnout conversion and as the turnout position indication line after the turnout conversion is completed. The "indication" in the indication line here is a special term for the turnout, referring 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.

[0109] Among them, the main difference between the forward and reverse installation of the AC switch machine by the fully electronic turnout execution unit is that it is necessary to swap the B and C phases of the three-phase action power input terminal, and at the same time, X2-X3 and X4-X5 are swapped and the diodes are reversed to realize the forward and reverse installation application of the AC switch machine.

[0110] When the AC switch machine is installed, Figure 4 As shown, the voltage acquisition unit collects the line voltage U AB(AB phase line voltage acquisition circuit acquisition) and U BC (BC phase line voltage acquisition circuit acquisition), the currents collected by the current acquisition unit from top to bottom are Ic (C phase current acquisition circuit acquisition), Ib (B phase current acquisition circuit acquisition), and Ia (A phase current acquisition circuit acquisition).

[0111] When the AC switch machine is reversely installed, Figure 5 As shown, the voltage acquisition unit collects U AC (AC phase line voltage acquisition circuit acquisition) and U CB (CB phase line voltage acquisition circuit acquisition), the current acquisition unit collects the currents Ib (B phase current acquisition circuit acquisition), Ic (C phase current acquisition circuit acquisition), and Ia (A phase current acquisition circuit acquisition) from top to bottom.

[0112] The implementation scheme of the power collection of the present invention can collect only two line voltages and three-phase currents as the basis for calculating the instantaneous power of the turnout rotation when the three phases are balanced. In the present invention, the AB and BC phase voltages are collected in the forward installation, and the AC and CB phase voltages are collected by the same collection circuit after reverse installation. Other schemes can use any two-phase voltage and current as the basis for calculation.

[0113] In summary, the present invention acquires the phase angle by collecting the voltage and current at the input end of the three-phase action power supply, and matches the phase angle with the identification condition. If the phase angle is consistent with the identification condition, the corresponding power is obtained according to the power calculation formula of the forward and reverse installation. If the phase angle is inconsistent with the identification condition, the collected phase angle is converted and calculated according to the vector relationship, and then the corresponding power is obtained according to the power calculation formula of the forward and reverse installation. Therefore, the present invention converts through the power relationship of the forward and reverse installation, and there is no need to distinguish the timing relationship between the voltage and current under the forward and reverse installation conditions. The implementation method is simple, and no external collection equipment is required to realize the power collection of the turnout under the forward and reverse installation conditions.

[0114] Furthermore, the device of the present invention has a simple structure. By treating the full-electronic turnout actuator unit as a whole, without changing the internal wiring and circuits, only by changing the line between the three-phase action power input terminal and the full-electronic turnout actuator unit output terminal, the instantaneous power parameters after the forward and reverse function conversion of the AC switch machine can be collected and calculated.

[0115] In addition, the modular all-electronic turnout execution unit of the present invention adopts computer control technology to replace the existing relay execution circuit, realizes the control and supervision function of the outdoor AC switch machine, and achieves the purpose of operating the outdoor turnout to the specified position.

Claims

1. A power collection method for a three-phase five-wire AC switch machine with forward and reverse installation, characterized in that: The following steps are involved: Collect the voltage value, current value and sine curve of voltage and current of three-phase power supply: the collected voltage includes U collected by AB phase line voltage collection circuit AB , BC phase line voltage acquisition circuit collects U BC , AC phase line voltage acquisition circuit collects U AC , U collected by CB phase line voltage collection circuit CB ; The collected current includes the current Ia collected by the A-phase current collection circuit, the current Ib collected by the B-phase current collection circuit, and the current Ic collected by the C-phase current collection circuit; Acquisition of phase angle: According to the sinusoidal curve of voltage and current, the time difference between the zero crossing point of line voltage and current is collected and converted into phase angle ,Here, the phase angle is collected without distinguishing between the forward and reverse installation conditions, and is collected according to the forward installation; Output identification conditions: The identification conditions include identification condition 1, AC switch machine is installed outdoors; and identification condition 2, the AC switch machine is reversely installed outdoors; According to the result of the output identification condition, it is judged whether the AC switch machine is installed in the normal state outdoors; if the response is yes, the corresponding power factor is directly calculated with the collected phase angle; if the response is no, the collected phase angle is converted according to the vector relationship to calculate the corresponding reverse installation power factor, and the power of the AC switch machine in the normal and reverse installation is calculated; Among them, when the AC switch machine is installed properly, the equation for calculating the power factor based on the phase angle is as follows: ， is the power factor, which is the cosine of the phase angle between the line voltage and the line current; Among them, when the AC switch machine is reversed, the equation for calculating the power factor based on the phase angle is as follows: 。 2. The power collection method for forward and reverse installation of a three-phase five-wire AC switch according to claim 1 is characterized in that: include: When the AC switch machine is installed properly, the line voltage U AB , U BC With phase voltage U A , U B , U C The vector relationship is: ， ， The calculation process of the three-phase motor power when installed properly is: ， ， When the three-phase power supply A, B, and C are balanced: ， Where Pa is the power of phase A, Pb is the power of phase B, Pc is the power of phase C, and U AB is the line voltage collected by the AB phase line voltage collection circuit, U BC is the line voltage collected by the BC phase line voltage collection circuit, Ia is the current collected by the A phase current collection circuit, and Ib is the current collected by the B phase current collection circuit.

3. The power collection method for forward and reverse installation of a three-phase five-wire AC switch according to claim 1 is characterized in that: include: When the AC switch is reversely installed, the line voltage U AC , U CB With phase voltage U A , U B , U C The vector relationship is: ， ， The calculation process of power when reverse installed is: ， ， When the three-phase power supply A, B, and C are balanced: ， When the three-phase power supply A, B, and C are unbalanced: ， Where Pa is the power of phase A, Pb is the power of phase B, Pc is the power of phase C, and U AC is the line voltage collected by the AC phase line voltage collection circuit, U CB is the line voltage collected by the CB phase line voltage collection circuit, Ia is the current collected by the A phase current collection circuit, and Ic is the current collected by the C phase current collection circuit.

4. A device for implementing the power collection method for the three-phase five-wire AC switch machine in forward and reverse installation as claimed in any one of claims 1 to 3, characterized in that: It includes a three-phase action power supply, a full electronic turnout execution unit, an execution backplane and an AC switch machine. The three-phase action power supply outputs three-phase power to the full electronic turnout execution unit; the full electronic turnout execution unit includes a current acquisition unit, a voltage acquisition unit and a CPU; A current acquisition unit collects the current value of the three-phase power supply and outputs it; The collected current includes the current Ia collected by the A-phase current collection circuit, the current Ib collected by the B-phase current collection circuit, and the current Ic collected by the C-phase current collection circuit; The voltage acquisition unit collects the line voltage value between two phases of the three-phase power supply and outputs it; wherein the collected line voltage includes the U collected by the AB phase line voltage acquisition circuit AB , BC phase line voltage acquisition circuit collects U BC , AC phase line voltage acquisition circuit collects U AC , U collected by CB phase line voltage collection circuit CB ; Phase angle acquisition unit, collects phase angle: collects the time difference between the zero crossing point of line voltage and current according to the sinusoidal curve of voltage and current and converts it into phase angle ,Here, the phase angle is collected without distinguishing between the forward and reverse installation conditions, and is collected according to the forward installation; The backplane is executed to output identification conditions; the identification conditions include identification condition 1, the AC switch machine is installed upright outdoors; and identification condition 2, the AC switch machine is installed reversely outdoors; The CPU determines whether the AC switch is installed normally outdoors based on the result of the output identification condition; if the response is yes, the corresponding power factor is directly calculated using the collected phase angle; if the response is no, the collected phase angle is converted based on the vector relationship to calculate the corresponding reverse installation power factor, and the power of the AC switch when installed normally or reversely is calculated.

5. The power collection device for forward and reverse installation of a three-phase five-wire AC switch according to claim 4 is characterized in that: The fully electronic turnout execution unit also includes a control output module and a fixed and reverse position conversion module; The control output module is connected to the output end of the three-phase action power supply, controls the output of the three-phase action power supply, and drives the start and stop of the three-phase motor of the outdoor AC switch machine; The fixed / reverse position conversion module is used to select the output direction and determine whether the AC switch machine rotates in the fixed / reverse position.

6. The power collection device for forward and reverse installation of a three-phase five-wire AC switch according to claim 4 is characterized in that: It also includes X1-X5 lines, which are used to connect the fully electronic turnout execution unit with the AC switch machine. They serve as power output drive lines during turnout switching and as turnout position indication lines after the turnout switching is completed.

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