Movable ATS grid-connected device

Abstract

The invention discloses a movable ATS grid-connected device, and relates to the field of distribution network non-power-cut operation, the movable ATS grid-connected device comprises an ATS grid-connected device and a crawler-type chassis which are arranged up and down, and the ATS grid-connected device and the crawler-type chassis are connected through bolts; a primary line of the ATS grid-connected device comprises two groups of incoming lines and one group of outgoing lines, and incoming and outgoing line interfaces are quick access type panel sockets; the primary line further comprises three switches which are a dual-power-supply change-over switch ATS, a mains supply grid-connected control contactor and a generator car grid-connected control contactor. The device can move flexibly, is suitable for complex terrains and environments, and can reduce the labor intensity of operators. The device can realize automatic switching of the main power supply and the standby power supply and synchronous grid connection between the dual power supplies, and reduces power failure time. According to the device, multiple purposes of one device are achieved, and the purchase cost of the device can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of distribution network non-stop operation, and in particular to a movable ATS grid-connected device. Background Art

[0002] Existing ATS devices are mainly installed in fixed locations and used for automatic switching between dual power sources to ensure the continuity and stability of power supply. However, in some special application scenarios, such as power inspection, temporary power supply or emergency repair, fixed ATS devices cannot meet the needs of flexible movement and rapid deployment. In addition, the on-site conditions of some operation scenarios are complicated, involving not only the automatic switching of dual power sources, but also the automatic grid connection of dual power sources. Our existing equipment is a single-function device, and the two functions are not coordinated and unified; for this reason, we provide a movable ATS grid-connected device to solve the above problems. Summary of the invention

[0003] In view of the problems existing in the above-mentioned prior art, the present invention provides a movable ATS grid-connected device, which can be flexibly moved and adapted to various complex environments and terrains, while realizing automatic start and stop of the power generation vehicle, automatic switching of dual power sources and intelligent grid-connected control.

[0004] In order to achieve the above object, the present invention adopts a movable ATS grid-connected device, comprising:

[0005] The ATS grid-connected device and the crawler chassis are arranged up and down, and the ATS grid-connected device and the crawler chassis are connected by bolts;

[0006] The primary circuit of the ATS grid-connected device includes two groups of incoming lines and one group of outgoing lines. Both the incoming and outgoing line interfaces are quick-access panel sockets.

[0007] The primary line also includes three switches, namely, dual power transfer switch ATS, mains grid connection control contactor, and generator car grid connection control contactor;

[0008] The two groups of incoming lines are divided into mains incoming lines and generator car incoming lines. The mains incoming lines are arranged on the mains power supply, and the generator car incoming lines are arranged on the generator power supply. The mains incoming lines are connected to the incoming lines of the dual power supply conversion switch ATS, and are also connected to the upper end of the mains grid-connected control contactor. The generator car incoming lines are connected to the standby power incoming lines of the dual power supply conversion switch ATS, and are also connected to the upper end of the generator car grid-connected controller; the outgoing lines are simultaneously connected to the output end of the dual power supply conversion switch ATS, the lower end of the mains grid-connected control contactor, and the lower end of the generator car grid-connected control contactor.

[0009] As a further optimization of the above scheme, it also includes a mains multi-function meter PM1, a generator multi-function meter PM2, and a load multi-function meter PM3. The mains multi-function meter PM1, the generator multi-function meter PM2, and the load multi-function meter PM3 respectively detect the voltage, current, and frequency parameters of the mains incoming line, the generator car incoming line, and the outgoing line.

[0010] As a further optimization of the above scheme, a synchronization controller TQ is also included, and the synchronization controller TQ is used to detect the synchronization signal of the mains power and the synchronization signal of the power generation vehicle.

[0011] As a further optimization of the above scheme, it also includes opening and closing buttons, which include mains closing button SBR1, mains opening button SBR2, generator closing button SBR3, and generator opening button SBR4. The opening and closing buttons are used to manually control the mains grid-connected control contactor and the generator car grid-connected control contactor.

[0012] As a further optimization of the above scheme, it also includes a phase sequence indicator light and a phase sequence detection hole. The phase sequence indicator light includes a mains indicator light 2WH and a generator indicator light 1WH. The phase sequence indicator light and the phase sequence detection hole are used to check the phase before the switch is closed.

[0013] As a further optimization of the above scheme, when the movable ATS grid-connected device is in the ATS control mode, the device will detect the ATS position signal and disconnect the grid-connected control loop to prevent the asynchronous closing caused by the wrong grid-connected switch;

[0014] When the mains is supplied through the dual power conversion switch ATS, the generator closing position contact XJ1 is closed, the mains relay KA5 is energized, the mains relay normally closed contact KA5-NC is opened, and the synchronous control TQ part is in an open circuit state;

[0015] When the generator is powered by the dual power conversion switch ATS, the AC power closing position contact XJ2 is closed, the generator relay KA4 is energized, the generator relay normally closed contact KA4-NC is opened, and the synchronous control TQ part is in an open circuit state.

[0016] As a further optimization of the above scheme, a load is also included, and the load has four wirings of U, V, W, and N;

[0017] The generator power supply has four wires: U1, V1, W1, and N, and the mains power supply has four wires: L1, L2, L3, and N;

[0018] Sixteen pins are provided on the dual power conversion switch ATS, and a total of twelve wires on the generator power supply, the AC power supply and the load are connected to the corresponding pins; the remaining four pins are connected to the AC power supply L1, the AC relay KA5, the generator power supply U1 and the generator relay KA4.

[0019] As a further optimization of the above scheme, the mains multifunctional meter PM1 has twelve pins, pins 1 and 2 are auxiliary power supplies, pin 1 is connected to the mains power supply L1, and pin 2 is connected to the mains power supply N; pins 4, 5, 6, 7, 8, and 9 are for current measurement, pins 4 and 5 are connected to the mains L1 current transformer TA1, pins 6 and 7 are connected to the mains L2 current transformer TA2, pins 8 and 9 are connected to the mains L3 current transformer TA3, and pins 5, 7, and 9 are grounded; pins 11, 12, 13, and 14 are for voltage measurement, pin 11 is connected to the mains power supply L1, pin 12 is connected to the mains power supply L2, pin 13 is connected to the mains power supply L3, and pin 14 is connected to the mains power supply N;

[0020] The generator multifunctional ammeter PM2 has twelve pins, pins 1 and 2 are auxiliary power supplies, pin 1 is connected to the generator power supply W1, and pin 2 is connected to the generator power supply N; pins 4, 5, 6, 7, 8, and 9 are for current measurement, pins 4 and 5 are connected to the generator U1 current transformer TA4, pins 6 and 7 are connected to the generator V1 current transformer TA5, pins 8 and 9 are connected to the generator W1 current transformer TA6, and pins 5, 7, and 9 are grounded; pins 11, 12, 13, and 14 are for voltage measurement, pin 11 is connected to the generator power supply U1, pin 12 is connected to the generator power supply V1, pin 13 is connected to the generator power supply W1, and pin 14 is connected to the generator power supply N;

[0021] The load multi-function meter PM3 has twelve pins, pins 1 and 2 are auxiliary power supplies, pin 1 is connected to load W, and pin 2 is connected to load N; pins 4, 5, 6, 7, 8, and 9 are for current measurement, pins 4 and 5 are connected to load U current transformer TA7, pins 6 and 7 are connected to load V current transformer TA8, pins 8 and 9 are connected to load W current transformer TA9, and pins 5, 7, and 9 are grounded; pins 11, 12, 13, and 14 are for voltage measurement, pin 11 is connected to load U, pin 12 is connected to load V, pin 13 is connected to load W, and pin 14 is connected to load N.

[0022] As a further optimization of the above scheme, the mains power supply and the generator power supply are connected to the grid through the conversion switch SAS and the synchronous controller TQ;

[0023] Among them, the transfer switch SAS has eight pins, pins 2 and 6 are connected to the generator power supply U1 and V1, pins 4 and 8 are connected to the AC power supply L1 and L2, pins 1 and 5 are connected to the to-be-connected side of the synchronization controller TQ, and pins 3 and 7 are connected to the to-be-connected side of the synchronization controller TQ; the synchronization controller TQ has five pins, the system side is connected to the AC power supply L1 and L2 through KM02-NO1, and is connected to the generator power supply U1 and V1 through KM01-NO1, the to-be-connected side is connected to pins 1 and 5 of the transfer switch, and is connected to pins 3 and 7 at the same time, and the remaining one pin is connected to the load N through the synchronous closing relay KA3.

[0024] As a further optimization of the above scheme, the mains phase sequence detection relay KA1 has five pins, A1, B1, C1 are connected to the mains power supplies L1, L2, L3, pin 5 is connected to the mains power supply L3, and pin 9 is connected to the normally closed contact KA4-NC of the generator relay. When the mains power supplies L1, L2, L3 are in positive sequence, the normally open contact KA1-NO of the mains phase sequence relay is closed;

[0025] The generator phase sequence detection relay KA2 has five pins, A2, B2, C2 are connected to the generator power supply U1, V1, W1, pin 5 is connected to the generator power supply W1, and pin 9 is connected to the generator relay normally closed contact KA4-NC. When the generator power supply U1, V1, W1 is in positive sequence, the generator phase sequence relay normally open contact KA2-NO is closed.

[0026] A movable ATS grid-connected device of the present invention has the following beneficial effects:

[0027] The present invention provides a mobile ATS grid-connected device, which can be flexibly moved, adapted to complex terrain and environment, and can reduce the labor intensity of operators. The device can realize automatic switching of the main power supply and the standby power supply and synchronous grid connection between the dual power supplies, thereby reducing power outage time. The device realizes multiple uses of one device and can reduce the purchase cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the movable ATS grid-connected device of the present invention;

[0029] Figure 2 A side view of the movable ATS grid-connected device of the present invention;

[0030] Figure 3 It is a front view of the movable ATS grid-connected device of the present invention;

[0031] Figure 4 Another side view of the movable ATS grid-connected device of the present invention;

[0032] Figure 5It is a rear view of the movable ATS grid-connected device of the present invention;

[0033] Figure 6 The circuit diagram of the mobile ATS grid-connected device of the present invention;

[0034] Figure 7 A grid-connected circuit diagram of a mobile ATS grid-connected device of the present invention;

[0035] Figure 8 It is the phase sequence diagram of the present invention.

[0036] In the figure: dual power transfer switch ATS;

[0037] The mains power supply has four connections: L1, L2, L3, and N;

[0038] The generator power supply has four connections: U1, V1, W1, N;

[0039] The load has four wires: U, V, W, N;

[0040] Mains L1 current transformer TA1, mains L2 current transformer TA2, mains L3 current transformer TA3, generator U1 current transformer TA4, generator V1 current transformer TA5, generator W1 current transformer TA6, load U current transformer TA7, load V current transformer TA8, load W current transformer TA9;

[0041] Mains multi-function meter PM1, generator multi-function meter PM2, load multi-function meter PM3;

[0042] Mains closing position contact XJ2, generator closing position contact XJ1;

[0043] Mains indicator light 2WH, generator indicator light 1WH;

[0044] Transfer switch SAS;

[0045] Generator control contactor KM01, generator contactor main contact KM01-NO1, generator contactor auxiliary normally open contact KM01-NO2, generator contactor auxiliary normally closed contact KM01-NC;

[0046] Mains control contactor KM02, mains contactor main contact KM02-NO1, mains contactor auxiliary normally open contact KM02-NO2, mains contactor auxiliary normally closed contact KM02-NC;

[0047] Mains closing button SBR1, mains opening button SBR2, generator closing button SBR3, generator opening button SBR4;

[0048] Mains phase sequence detection relay KA1, generator phase sequence detection relay KA2, synchronous closing relay KA3, generator relay KA4, mains relay KA5, synchronous controller TQ;

[0049] The normally open contact of the AC phase sequence relay is KA1-NO, the normally open contact of the generator phase sequence relay is KA2-NO, the normally closed contact of the AC relay is KA5-NC, the normally closed contact of the generator relay is KA4-NC, and the synchronous closing normally open contact is KA3-NO. DETAILED DESCRIPTION

[0050] Please refer to the instruction manual Figure 1-8 The present invention provides a technical solution: a movable ATS grid-connected device, which includes two functions, one is a dual power conversion function, and the other is a dual power grid-connected function.

[0051] The principle of dual power conversion function is shown in the attached Figure 6 As shown, the ATS grid-connected device includes three parts, namely generator power supply, mains power supply, and load. The generator power supply, mains power supply, and load are connected through a dual power conversion switch ATS;

[0052] Among them, the generator power supply has four wirings of U1, V1, W1, and N, the mains power supply has four wirings of L1, L2, L3, and N, and the load has four wirings of U, V, W, and N; sixteen pins are provided on the dual power conversion switch ATS, and twelve wirings of the generator power supply, the mains power supply, and the load are connected to the corresponding pins; the remaining four pins are connected to the mains power supply L1, the mains relay KA5, the generator power supply U1, and the generator relay KA4;

[0053] The generator power supply, the mains power supply and the load are respectively provided with a mains multi-function meter PM1, a generator multi-function meter PM2 and a load multi-function meter PM3;

[0054] Among them, the mains multifunctional meter PM1 has twelve pins, pins 1 and 2 are auxiliary power supplies, pin 1 is connected to the mains power supply L1, and pin 2 is connected to the mains power supply N; pins 4, 5, 6, 7, 8, and 9 are for current measurement, pins 4 and 5 are connected to the mains power supply L1 current transformer TA1, pins 6 and 7 are connected to the mains power supply L2 current transformer TA2, pins 8 and 9 are connected to the mains power supply L3 current transformer TA3, and pins 5, 7, and 9 are grounded; pins 11, 12, 13, and 14 are for voltage measurement, pin 11 is connected to the mains power supply L1, pin 12 is connected to the mains power supply L2, pin 13 is connected to the mains power supply L3, and pin 14 is connected to the mains power supply N;

[0055] The generator multi-function meter PM2 has twelve pins, pins 1 and 2 are auxiliary power supplies, pin 1 is connected to the generator power supply W1, and pin 2 is connected to the generator power supply N; pins 4, 5, 6, 7, 8, and 9 are for current measurement, pins 4 and 5 are connected to the generator U1 current transformer TA4, pins 6 and 7 are connected to the generator V1 current transformer TA5, pins 8 and 9 are connected to the generator W1 current transformer TA6, and pins 5, 7, and 9 are grounded; pins 11, 12, 13, and 14 are for voltage measurement, pin 11 is connected to the generator power supply U1, pin 12 is connected to the generator power supply V1, pin 13 is connected to the generator power supply W1, and pin 14 is connected to the generator power supply N;

[0056] The load multi-function meter PM3 has twelve pins, pins 1 and 2 are auxiliary power supplies, pin 1 is connected to load W, and pin 2 is connected to load N; pins 4, 5, 6, 7, 8, and 9 are for current measurement, pins 4 and 5 are connected to load U current transformer TA7, pins 6 and 7 are connected to load V current transformer TA8, pins 8 and 9 are connected to load W current transformer TA9, and pins 5, 7, and 9 are grounded; pins 11, 12, 13, and 14 are for voltage measurement, pin 11 is connected to load U, pin 12 is connected to load V, pin 13 is connected to load W, and pin 14 is connected to load N;

[0057] The principle of dual power grid connection function is as follows Figure 7 As shown, the incoming lines are the mains power supply and the generator power supply, and the outgoing lines are the loads; the dual power supplies are connected to the grid through the conversion switch SAS and the synchronous controller TQ, wherein the conversion switch SAS has eight pins, pins 2 and 6 are connected to the generator power supply U1 and V1, pins 4 and 8 are connected to the mains power supply L1 and L2, pins 1 and 5 are connected to the to-be-connected side of the synchronous controller TQ, and pins 3 and 7 are connected to the to-be-connected side of the synchronous controller TQ; the synchronous controller TQ has five pins, the system side is connected to the mains power supply L1 and L2 through KM02-NO1, and is connected to the generator power supply U1 and V1 through KM01-NO1, the to-be-connected side is connected to pins 1 and 5 of the conversion switch, and is connected to pins 3 and 7 at the same time, and the remaining one pin is connected to the load N through the synchronous closing relay KA3.

[0058] Figure 8 This is the schematic diagram of the phase sequence detection relay, which detects the AC power supply and the generator power supply.

[0059] Among them, the AC phase sequence detection relay KA1 has five pins, A1, B1, and C1 are connected to the AC power supplies L1, L2, and L3, pin 5 is connected to the AC power supply L3, and pin 9 is connected to the normally closed contact KA4-NC of the generator relay. When the AC power supplies L1, L2, and L3 are in positive sequence, the normally open contact KA1-NO of the AC phase sequence relay will be closed.

[0060] The generator phase sequence detection relay KA2 has five pins, A2, B2, C2 are connected to the generator power supply U1, V1, W1, pin 5 is connected to the generator power supply W1, and pin 9 is connected to the generator relay normally closed contact KA4-NC. When the generator power supply U1, V1, W1 is in positive sequence, the generator phase sequence relay normally open contact KA2-NO will be closed.

[0061] In order to unify the dual power conversion function and the grid-connected function, the device is equipped with a self-locking interlocking function. When the device is in dual power mode, the device will detect the ATS position signal. When the dual power conversion switch ATS is on the mains side, the generator closing position contact XJ1 is in a closed state, the mains relay KA5 is in an energized state, the mains relay normally closed contact KA5-NC is open, and the generator closing button SBR3 is located in a disconnected state. This can prevent the generator closing button from being mistakenly closed and causing asynchronous closing. When the dual power conversion switch ATS is on the generator side, the generator closing position contact XJ1 is in a closed state, the generator relay KA4 is in an energized state, the generator relay normally closed contact KA4-NC is open, and the mains closing button SBR1 is located in a disconnected state. This can also prevent the mains closing button from being mistakenly closed and causing asynchronous closing.

[0062] To realize the dual power grid connection function, the device must first ensure that the dual power conversion switch ATS is in the open state, and the position contacts XJ1 and XJ2 are in the separated state. Then, it is necessary to ensure that the phase sequence of the mains power supply and the generator power supply are both positive, and the mains phase sequence detection relay KA1 and the generator phase sequence detection relay KA2 are both in the energized state. At this time, the mains phase sequence relay normally open contact KA1-NO and the generator phase sequence relay normally open contact KA2-NO are closed. To realize the automatic connection of the generator to the grid, first manually close the mains control contactor and press the mains closing button SBR1. At this time, the mains control contactor KM02 is energized, the mains contactor main contact KM02-NO1 is closed, and the mains power is connected. The auxiliary normally closed contact KM02-NC of the mains contactor is opened, and the line where the generator closing button SBR3 is located is in an open circuit state, and the control fails, which effectively prevents manual mistaken closing of the generator button from causing asynchronous closing. At this time, the generator contactor can only be closed through synchronous control. Turn the transfer switch SAS to the grid-connected side of the generator, connect the transfer switch contacts 1 and 2, 5 and 6, and energize the waiting side of the synchronization controller TQ. When the grid-connected conditions are not met, the synchronization controller outputs a grid-connected signal, the synchronization closing relay KA3 is energized, the synchronization closing normally open contact KA3-NO is closed, the generator synchronization closing circuit is turned on, the generator control contactor KM01 is energized, the generator contactor main contact KM01-NO1 is closed, and the generator is synchronously connected to the mains.

[0063] The main body of the device is divided into two parts, the lower part is the tracked chassis, and the upper part is the ATS grid-connected device, which are connected by bolts.

[0064] The primary circuit of the ATS grid-connected device includes two groups of incoming lines and one group of outgoing lines. Both the incoming and outgoing line interfaces are quick-access panel sockets, which facilitate quick connection of cables during operation and improve operation efficiency.

[0065] The primary line also includes three switches, namely the ATS transfer switch, the mains grid-connected control contactor, and the generator grid-connected control contactor.

[0066] The two groups of incoming lines are divided into mains incoming lines and generator car incoming lines. The mains incoming lines are arranged on the mains power supply, and the generator car incoming lines are arranged on the generator power supply. The mains incoming lines are connected to the incoming lines of the dual power supply conversion switch ATS, and are also connected to the upper end of the mains grid-connected control contactor. The generator car incoming lines are connected to the standby power incoming lines of the dual power supply conversion switch ATS, and are also connected to the upper end of the generator car grid-connected controller; the outgoing lines are simultaneously connected to the output end of the dual power supply conversion switch ATS, the lower end of the mains grid-connected control contactor, and the lower end of the generator car grid-connected control contactor.

[0067] In addition, the device is also equipped with three multi-function meters (mains multi-function meter PM1, generator multi-function meter PM2, load multi-function meter PM3), which detect the voltage, current, frequency and other parameters of the mains incoming line, generator car incoming line and outgoing line respectively. It is also equipped with a synchronous controller TQ, which is used to detect the mains synchronization signal and the generator car synchronization signal. It is also equipped with multiple opening and closing buttons (mains closing button SBR1, mains opening button SBR2, generator closing button SBR3, generator opening button SBR4), which are used to manually control the mains grid-connected control contactor and the generator car grid-connected control contactor. It is also equipped with phase sequence indicator lights (mains indicator light 2WH, generator indicator light 1WH) and phase sequence detection holes, which are used to check the phase before the switch is closed.

[0068] In order to unify the ATS conversion function and the grid-connected function, the secondary control circuit of the device is equipped with a self-locking interlocking function. When the device is in the ATS control mode, the device will detect the ATS position signal and disconnect the grid-connected control circuit to prevent the asynchronous closing caused by the mistaken connection of the grid switch. When the mains is supplied by the dual power conversion switch ATS, the generator closing position contact XJ1 is closed, the mains relay KA5 is energized, the mains relay normally closed contact KA5-NC is opened, and the synchronous control TQ part is in an open circuit state. When the generator is supplied by the dual power conversion switch ATS, the mains closing position contact XJ2 is closed, the generator relay KA4 is energized, the generator relay normally closed contact KA4-NC is opened, and the synchronous control TQ part is in an open circuit state.

[0069] In order to realize the synchronous grid-connected function, the device must first ensure that the dual power conversion switch ATS is in the open state, the mains closing position contact XJ2 and the generator closing position contact XJ1 are both in the separated state, and then ensure that the phase sequence of the grid-connected line is consistent. The device is equipped with two phase sequence detection relays to detect the phase sequence of the mains power supply and the generator power supply respectively. Only when the power supply is in the positive sequence, the mains phase sequence detection relay KA1 and the generator phase sequence detection relay KA2 will be closed. To realize the automatic grid-connected generator, first manually close the mains control contactor and press the mains closing button SBR1. At this time, the mains control contactor KM02 is energized, the mains contactor main contact KM02-NO1 is closed, the mains is connected, and the auxiliary mains contactor auxiliary normally closed contact KM02-NC is opened, and the manual control of the generator fails to prevent manual mistaken closing of the generator contactor and cause asynchronous closing. At this time, the generator contactor can only be closed through synchronous control. Turn the dual power conversion switch ATS to the grid-connected side of the generator. When the grid-connected conditions are not met, the synchronous controller outputs a grid-connected signal, the synchronous closing relay KA3 is energized, the synchronous closing normally open contact KA3-NO is closed, the generator synchronous closing circuit is turned on, the generator control contactor KM01 is energized, the generator contactor main contact KM01-NO1 is closed, and the generator is synchronously connected to the mains.

Claims

1. A mobile ATS grid-connected device, characterized in that: include: The ATS grid-connected device and the crawler chassis are arranged up and down, and the ATS grid-connected device and the crawler chassis are connected by bolts; The primary circuit of the ATS grid-connected device includes two groups of incoming lines and one group of outgoing lines. Both the incoming and outgoing line interfaces are quick-access panel sockets. The primary line also includes three switches, namely, dual power transfer switch ATS, mains grid connection control contactor, and generator car grid connection control contactor; The two groups of incoming lines are divided into mains incoming lines and generator car incoming lines. The mains incoming lines are arranged on the mains power supply, and the generator car incoming lines are arranged on the generator power supply. The mains incoming lines are connected to the incoming lines of the dual power supply conversion switch ATS, and are also connected to the upper end of the mains grid-connected control contactor. The generator car incoming lines are connected to the standby power incoming lines of the dual power supply conversion switch ATS, and are also connected to the upper end of the generator car grid-connected controller; the outgoing lines are simultaneously connected to the output end of the dual power supply conversion switch ATS, the lower end of the mains grid-connected control contactor, and the lower end of the generator car grid-connected control contactor.

2. A mobile ATS grid-connected device according to claim 1, characterized in that: It also includes a mains multi-function meter PM1, a generator multi-function meter PM2, and a load multi-function meter PM3. The mains multi-function meter PM1, the generator multi-function meter PM2, and the load multi-function meter PM3 respectively detect the voltage, current, and frequency parameters of the mains incoming line, the generator car incoming line, and the outgoing line.

3. The mobile ATS grid-connected device according to claim 1, characterized in that: It also includes a synchronization controller TQ, which is used to detect the synchronization signal of the mains power and the synchronization signal of the power generation vehicle.

4. The mobile ATS grid-connected device according to claim 1, characterized in that: It also includes opening and closing buttons, which include mains closing button SBR1, mains opening button SBR2, generator closing button SBR3, and generator opening button SBR4. The opening and closing buttons are used to manually control the mains grid-connected control contactor and the generator car grid-connected control contactor.

5. The mobile ATS grid-connected device according to claim 1, characterized in that: It also includes a phase sequence indicator light and a phase sequence detection hole. The phase sequence indicator light includes a mains indicator light 2WH and a generator indicator light 1WH. The phase sequence indicator light and the phase sequence detection hole are used to check the phase before the switch is closed.

6. The mobile ATS grid-connected device according to claim 1, characterized in that: When the movable ATS grid-connected device is in the ATS control mode, the device detects the ATS position signal and disconnects the grid-connected control loop to prevent asynchronous closing caused by mistakenly connecting the grid switch; When the mains is supplied through the dual power conversion switch ATS, the generator closing position contact XJ1 is closed, the mains relay KA5 is energized, the mains relay normally closed contact KA5-NC is opened, and the synchronous control TQ part is in an open circuit state; When the generator is powered by the dual power conversion switch ATS, the AC power closing position contact XJ2 is closed, the generator relay KA4 is energized, the generator relay normally closed contact KA4-NC is opened, and the synchronous control TQ part is in an open circuit state.

7. The mobile ATS grid-connected device according to claim 1, characterized in that: It also includes a load, which has four wires: U, V, W, and N; The generator power supply has four wires: U1, V1, W1, and N, and the mains power supply has four wires: L1, L2, L3, and N; Sixteen pins are provided on the dual power conversion switch ATS, and a total of twelve wires on the generator power supply, the AC power supply and the load are connected to the corresponding pins; the remaining four pins are connected to the AC power supply L1, the AC relay KA5, the generator power supply U1 and the generator relay KA4.

8. The mobile ATS grid-connected device according to claim 2, characterized in that: The mains multifunctional electric meter PM1 has twelve pins, pins 1 and 2 are auxiliary power supplies, pin 1 is connected to the mains power supply L1, and pin 2 is connected to the mains power supply N; pins 4, 5, 6, 7, 8, and 9 are for current measurement, pins 4 and 5 are connected to the mains power supply L1 current transformer TA1, pins 6 and 7 are connected to the mains power supply L2 current transformer TA2, pins 8 and 9 are connected to the mains power supply L3 current transformer TA3, and pins 5, 7, and 9 are grounded; pins 11, 12, 13, and 14 are for voltage measurement, pin 11 is connected to the mains power supply L1, pin 12 is connected to the mains power supply L2, pin 13 is connected to the mains power supply L3, and pin 14 is connected to the mains power supply N; The generator multifunctional ammeter PM2 has twelve pins, pins 1 and 2 are auxiliary power supplies, pin 1 is connected to the generator power supply W1, and pin 2 is connected to the generator power supply N; pins 4, 5, 6, 7, 8, and 9 are for current measurement, pins 4 and 5 are connected to the generator U1 current transformer TA4, pins 6 and 7 are connected to the generator V1 current transformer TA5, pins 8 and 9 are connected to the generator W1 current transformer TA6, and pins 5, 7, and 9 are grounded; pins 11, 12, 13, and 14 are for voltage measurement, pin 11 is connected to the generator power supply U1, pin 12 is connected to the generator power supply V1, pin 13 is connected to the generator power supply W1, and pin 14 is connected to the generator power supply N; The load multi-function meter PM3 has twelve pins, pins 1 and 2 are auxiliary power supplies, pin 1 is connected to load W, and pin 2 is connected to load N; pins 4, 5, 6, 7, 8, and 9 are for current measurement, pins 4 and 5 are connected to load U current transformer TA7, pins 6 and 7 are connected to load V current transformer TA8, pins 8 and 9 are connected to load W current transformer TA9, and pins 5, 7, and 9 are grounded; pins 11, 12, 13, and 14 are for voltage measurement, pin 11 is connected to load U, pin 12 is connected to load V, pin 13 is connected to load W, and pin 14 is connected to load N.

9. The mobile ATS grid-connected device according to claim 7, characterized in that: The mains power supply and the generator power supply are connected to the grid through the conversion switch SAS and the synchronous controller TQ; Among them, the transfer switch SAS has eight pins, pins 2 and 6 are connected to the generator power supply U1 and V1, pins 4 and 8 are connected to the AC power supply L1 and L2, pins 1 and 5 are connected to the to-be-connected side of the synchronization controller TQ, and pins 3 and 7 are connected to the to-be-connected side of the synchronization controller TQ; the synchronization controller TQ has five pins, the system side is connected to the AC power supply L1 and L2 through KM02-NO1, and is connected to the generator power supply U1 and V1 through KM01-NO1, the to-be-connected side is connected to pins 1 and 5 of the transfer switch, and is connected to pins 3 and 7 at the same time, and the remaining one pin is connected to the load N through the synchronous closing relay KA3.

10. The mobile ATS grid-connected device according to claim 1, characterized in that: The mains phase sequence detection relay KA1 has five pins, A1, B1, C1 are connected to the mains power supplies L1, L2, L3, pin 5 is connected to the mains power supply L3, and pin 9 is connected to the normally closed contact KA4-NC of the generator relay. When the mains power supplies L1, L2, L3 are in positive sequence, the normally open contact KA1-NO of the mains phase sequence relay is closed; The generator phase sequence detection relay KA2 has five pins, A2, B2, C2 are connected to the generator power supply U1, V1, W1, pin 5 is connected to the generator power supply W1, and pin 9 is connected to the generator relay normally closed contact KA4-NC. When the generator power supply U1, V1, W1 is in positive sequence, the generator phase sequence relay normally open contact KA2-NO is closed.

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