Generator set starting control system

Abstract

The invention relates to the technical field of generator driving, in particular to a generator set starting control system, which is characterized in that a generator set comprises an engine and a motor; a driving shaft of the motor is in shaft connection with a driving shaft of the engine, the engine is used for driving the motor to rotate, the motor can output alternating current when rotating, the generator set starting control system comprises a main control unit, a processing module and a battery pack, the processing module and the battery pack are in communication connection with the main control unit, and the battery pack is connected with the processing module. The main control unit is used for controlling on-off of the battery pack and the processing module; when the battery pack is started, the processing module drives the motor to rotate so as to drive the engine to operate. The power generation cost of the generator can be reduced, and pollution to the environment when the generator is started is reduced.

Description

Technical Field

[0001] The present invention relates to the field of generator driving technology, and in particular to a generator set starting control system. Background Art

[0002] The generator set mainly includes an engine and a motor. The engine can drive the motor to rotate. When the motor rotates, it converts mechanical energy into electrical energy and outputs it in the form of alternating current. The output alternating current is processed to charge the battery or power electrical equipment.

[0003] When starting an engine, it needs to overcome various frictions and resistances to start moving from a stationary state. At the same time, it also needs to heat and lubricate various components. Therefore, the energy consumed per unit time when the engine is started is much higher than the energy consumed per unit time when the engine is running normally.

[0004] In the prior art, the engine is usually started by fuel-driven method. Patent No. CN114992029B discloses a diesel engine emergency starting system and its working method. Although the engine speed and fuel consumption can be accurately controlled with the continuous development of technology, the fuel consumption is still relatively large when the engine is started by fuel, and the power generation cost is high. In addition, the engine will also produce a lot of harmful gases and noise when it is started by fuel ignition. Summary of the invention

[0005] In order to reduce the power generation cost of the generator and reduce the pollution to the environment when the generator is started, the present application provides a generator set starting control system.

[0006] The present invention provides a generator set starting control system, the generator set includes an engine and a motor; the drive shaft of the motor is coaxially fixed with the drive shaft of the engine, the engine set includes the engine and the motor; the flywheel ring gear of the motor is meshed with the flywheel ring gear of the engine through a transmission mechanism, the engine is used to drive the motor to rotate, and the motor can output AC power when rotating, the generator set starting control system includes a main control unit, and a processing module and a battery pack connected to the main control unit in communication, and the battery pack is connected to the processing module;

[0007] The main control unit is used to control the opening and closing of the battery pack and the processing module; when the battery pack is enabled, the processing module drives the motor to rotate, thereby driving the engine to run.

[0008] Optionally, the system further comprises an inverter module communicatively connected to the main control unit, and the inverter module is connected to the motor via the processing module;

[0009] The inverter module includes a bidirectional DC-DC conversion unit and a bidirectional inverter conversion unit connected in a bidirectional manner. The bidirectional DC-DC conversion unit is used to convert the input voltage into a preset specification voltage, and the battery pack is bidirectionally connected to the bidirectional DC-DC conversion unit; the bidirectional inverter conversion unit is used to convert the input DC power into AC power or convert the input AC power into DC power.

[0010] Optionally, the output voltage of the motor is adapted to the input voltage of the bidirectional inverter conversion unit.

[0011] The processing module includes an engine power supply module, a motor drive unit and an AC-DC conversion unit connected to each other.

[0012] The motor drive unit is connected to the main control unit for communication, the engine power supply module is used to supply power to the engine start / operation module, the motor drive unit is used to convert direct current into alternating current, and the AC-DC conversion unit is used to convert the alternating current output by the motor into direct current;

[0013] The output end of the bidirectional DC-DC conversion unit is connected to the input end of the motor drive unit; the output end of the motor drive unit is connected to the input end of the motor, and the motor drive unit drives the motor to rotate after being powered on;

[0014] The output end of the motor is connected to the input end of the AC-DC conversion unit, and the output end of the AC-DC conversion unit is connected to the input end of the bidirectional inverter conversion unit;

[0015] The output circuit of the system includes a first output circuit, a second output circuit, a third output circuit, a fourth output circuit and a fifth output circuit.

[0016] The first output circuit includes a battery pack, a bidirectional DC-DC conversion unit, a motor drive unit and a motor connected in sequence;

[0017] The second output circuit includes a battery pack, an engine power supply module and an engine connected in sequence;

[0018] The third output circuit includes a motor, an AC-DC conversion unit and a bidirectional inverter conversion unit connected in sequence;

[0019] The fourth output circuit includes a motor, an AC-DC conversion unit, a bidirectional DC-DC conversion unit and a battery pack connected in sequence;

[0020] The fifth output loop includes an AC power grid, a bidirectional inverter conversion unit, a bidirectional DC-DC conversion unit and a battery pack which are connected in sequence.

[0021] Optionally, the input / output voltage of the battery pack of the battery is adapted to the operating voltage of the motor,

[0022] The processing module includes an engine power supply module, a motor drive unit and an AC-DC conversion unit connected to each other.

[0023] The engine power supply module is used to supply power to the engine start / operation module, the motor drive unit is used to convert direct current into alternating current, and the AC-DC conversion unit is used to convert the alternating current output by the motor into direct current;

[0024] The battery pack is bidirectionally connected to the motor drive unit, and the motor drive unit is bidirectionally connected to the motor; the motor drive unit drives the motor to rotate after being powered on;

[0025] The output end of the motor is connected to the input end of the AC-DC conversion unit, and the output end of the AC-DC conversion unit is connected to the input end of the bidirectional inverter conversion unit;

[0026] The output circuits of the system include a sixth output circuit, a seventh output circuit, an eighth output circuit, a ninth output circuit, a tenth output circuit, an eleventh output circuit and a twelfth output circuit,

[0027] The sixth output circuit includes a battery pack, a bidirectional DC-DC conversion unit, a motor drive unit and a motor connected in sequence;

[0028] The seventh output circuit includes a battery pack, a bidirectional DC-DC conversion unit and a bidirectional inverter conversion unit connected in sequence;

[0029] The eighth output circuit includes a battery pack, an engine power supply module and an engine connected in sequence;

[0030] The ninth output circuit includes a motor, an AC-DC conversion unit, a bidirectional DC-DC conversion unit and a battery pack connected in sequence;

[0031] The tenth output circuit includes a motor, an AC-DC conversion unit, a bidirectional DC-DC conversion unit and a bidirectional inverter conversion unit connected in sequence;

[0032] The eleventh output circuit includes a motor, an AC-DC conversion unit, a motor drive unit, a bidirectional DC-DC conversion unit and a battery pack;

[0033] The twelfth output circuit includes an AC power grid, a bidirectional inverter conversion unit, a bidirectional DC-DC conversion unit and a battery pack.

[0034] Optionally, the AC-DC conversion unit includes three parallel motor three-phase rectification circuits, and the motor three-phase rectification circuits are respectively arranged corresponding to the three-phase outputs of the motor;

[0035] The three-phase rectification circuit of the motor includes a thyristor and a diode connected in series. The anode of the thyristor is connected to the output end of the motor, the cathode of the thyristor is connected to the positive electrode of the diode, the control electrode of the thyristor is connected to the control signal source, and the negative electrode of the diode is connected to the output end of the motor; the cathode of the thyristor is connected to the positive electrode of the bus, and the cathode of the diode is connected to the negative electrode of the bus.

[0036] Optionally, the AC-DC conversion unit further includes a filter capacitor, the three-phase rectification circuit of the motor is connected in parallel with the filter capacitor, and the two ends of the three-phase rectification circuit of the motor are respectively connected to the positive electrode and the negative electrode of the filter capacitor.

[0037] Optionally, the motor drive unit includes three first control loops connected in parallel, and the three first control loops are respectively connected to the three-phase output of the motor; the first control loop includes a first MOS transistor and a second MOS transistor connected in series,

[0038] The drain of the first MOS tube is connected to one electrode end of the battery pack, the drain of the second MOS tube is connected to the source of the first MOS tube, and the source of the second MOS tube is connected to the other electrode end of the battery pack; the gate of the first MOS tube is used to receive a first control signal, and the gate of the second MOS tube is used to receive a second control signal.

[0039] Optionally, the output voltage of the motor is adapted to the input voltage of the bidirectional inverter conversion unit.

[0040] The processing module includes an engine power supply module and a current mode conversion unit.

[0041] The current mode conversion unit is communicatively connected with the main control unit, the engine power supply module is used to supply power to the engine start / operation module, and the current mode conversion unit has a first conversion mode and a second conversion mode;

[0042] The current mode conversion unit is used to convert the alternating current output by the generator into direct current of preset specifications in the first conversion mode;

[0043] The current mode conversion unit is used to convert the direct current output by the battery pack into alternating current that can be used to drive the generator in the second conversion mode;

[0044] The output circuits of the system include a thirteenth output circuit, a fourteenth output circuit, a fifteenth output circuit, a sixteenth output circuit, a seventeenth output circuit and an eighteenth output circuit.

[0045] The thirteenth output circuit includes a battery pack, a bidirectional DC-DC conversion unit, a current mode conversion unit and a motor connected in sequence;

[0046] The fourteenth output circuit includes a battery pack, an engine power supply module and an engine connected in sequence;

[0047] The fifteenth output circuit includes a motor, a current mode conversion unit and a bidirectional inverter conversion unit connected in sequence;

[0048] The sixteenth output loop includes a motor, a current mode conversion unit, a bidirectional DC-DC conversion unit and a battery pack connected in sequence;

[0049] The seventeenth output circuit includes a motor, a current mode conversion unit, an engine power supply module and an engine connected in sequence;

[0050] The eighteenth output loop includes an AC power grid, a bidirectional inverter conversion unit, a bidirectional DC-DC conversion unit and a battery pack connected in sequence.

[0051] Optionally, the input / output voltage of the battery pack is adapted to the working voltage of the motor, and the processing module includes an engine power supply module, a current mode conversion unit and a second DC-DC conversion unit.

[0052] The current mode conversion unit is communicatively connected with the main control unit, the engine power supply module is used to supply power to the engine start / operation module, and the current mode conversion unit has a first conversion mode and a second conversion mode;

[0053] The current mode conversion unit is used to convert the alternating current output by the generator into direct current of preset specifications in the first conversion mode;

[0054] The current mode conversion unit is used to convert the direct current output by the battery pack into alternating current that can be used to drive the motor in the second conversion mode;

[0055] The output circuits of the system include a nineteenth output circuit, a twentieth output circuit, a twenty-first output circuit, a twenty-second output circuit, a twenty-third output circuit, a twenty-fourth output circuit, a twenty-fifth output circuit, and a twenty-sixth output circuit.

[0056] The nineteenth output circuit includes a battery pack, a second DC-DC conversion unit, a current mode conversion unit and a motor connected in sequence;

[0057] The twentieth output circuit includes a battery pack, a second DC-DC conversion unit, an engine power supply module and an engine connected in sequence;

[0058] The twenty-first output circuit includes a battery pack, a bidirectional DC-DC conversion unit, and a bidirectional inverter conversion unit connected in sequence;

[0059] The twenty-second output loop includes a motor, a current mode conversion unit, a bidirectional DC-DC conversion unit and a battery pack connected in sequence;

[0060] The twenty-third output circuit includes a motor, a current mode conversion unit, a bidirectional DC-DC conversion unit, and a bidirectional inverter conversion unit connected in sequence;

[0061] The twenty-fourth output circuit includes a motor, a current mode conversion unit, a second DC-DC conversion unit, an engine power supply module and an engine connected in sequence;

[0062] A twenty-fifth output circuit includes a motor, a current mode conversion unit and a generator connected in sequence;

[0063] The twenty-sixth output loop includes an AC power grid, a bidirectional inverter conversion unit, a bidirectional DC-DC conversion unit and a battery pack connected in sequence.

[0064] Optionally, the current mode conversion unit includes three parallel second control loops, and the three second control loops correspond to the three-phase access terminals of the generator respectively; one end of the second control loop is connected to the positive electrode of the battery pack, and the other end is connected to the negative electrode of the battery pack; the second control loop includes a first junction field effect transistor and a second junction field effect transistor connected in reverse series, the source of the first junction field effect transistor is connected to one end of the battery pack, the source of the second junction field effect transistor is connected to the drain of the first junction field effect transistor, and the drain of the second junction field effect transistor is connected to the other end of the battery pack, the access terminal of the generator is connected between the source of the second junction field effect transistor and the drain of the first junction field effect transistor, and the drain of the second junction field effect transistor is used to connect to the input terminal of the bidirectional DC-DC conversion unit; the gate of the first junction field effect transistor is used to receive a third control signal, and the gate of the second junction field effect transistor is used to receive a fourth control signal.

[0065] Optionally, the system further comprises an MPPT module, the MPPT module is connected to the battery pack, the MPPT module is used to receive electric energy output by an external power generation system, and the output end of the MPPT module can be connected to a DC load.

[0066] Optionally, the main control unit is communicatively connected to a display module, and the display module is used to display operating information of the generator, the operating information including operating status information of the engine, power consumption information of the load connected to the generator output circuit, operating status information of the inverter module, operating status information of the processing module and power information of the battery pack.

[0067] In summary, this application includes the following beneficial technical effects:

[0068] When the engine needs to be started, the battery pack is used to power the processing module, which converts the electric energy output by the battery pack into specifications that can be used by the motor. The coil on the motor stator generates a magnetic field after being energized, driving the motor's rotor to rotate around its own axis, converting the electric energy into mechanical energy. At this time, the motor drives the engine's drive shaft to rotate, and the engine starts to run when it reaches a certain speed. After the engine is started, the battery pack is turned off to no longer supply power to the motor, and the engine drives the motor's rotor to rotate. The motor's rotor converts mechanical energy into electrical energy when cutting the magnetic flux lines generated by the stator, and supplies power to the electrical equipment connected to the generator set. Electricity is a clean energy source and does not produce harmful exhaust and noise when used, reducing the pollution of the generator to the environment when starting, allowing the generator to be used in more occasions with high environmental requirements. In addition, the cost of starting the engine with electricity is lower than that of driving the engine with fuel. Using a processing module to drive the motor to start the engine can save the generator's power generation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] Figure 1 A control principle diagram of a generator set starting control system provided in Example 1 of the present invention;

[0070] Figure 2 A circuit diagram of a generator set starting control system provided in Example 1 of the present invention;

[0071] Figure 3 A control principle diagram of a generator set starting control system provided in Example 2 of the present invention;

[0072] Figure 4 A control principle diagram of a generator set starting control system provided in Example 3 of the present invention;

[0073] Figure 5 A circuit diagram of a generator set starting control system provided in Example 3 of the present invention;

[0074] Figure 6 A control schematic diagram of a generator set starting control system provided in Example 2 of the present invention.

[0075] Figure numerals: 11, engine; 12, motor; 2, main control unit; 3, processing module; 31, engine power supply module; 311, first insulated gate field effect transistor; 312, second insulated gate field effect transistor; 313, common mode inductor; 32, motor drive unit; 321, first MOS tube; 322, second MOS tube; 33, AC-DC conversion unit; 331, thyristor; 332, diode; 333, filter capacitor; 34, current mode conversion unit; 341, first junction field effect transistor; 342, second junction field effect transistor; 343, filter unit; 35, second DC-DC conversion unit; 4, battery pack; 5, inverter module; 51, bidirectional DC-DC conversion unit; 52, bidirectional inverter conversion unit; 6, MPPT module.

[0076] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0077] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0078] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0079] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0080] Example 1

[0081] Reference Figure 1The generator set includes an engine 11 and a motor 12. The drive shaft of the engine 11 is connected to the drive shaft of the motor 12. When the engine 11 rotates, it can drive the motor 12 to rotate. When the motor 12 rotates, it can convert mechanical energy into electrical energy and output it in the form of alternating current to power electrical equipment and charge the battery pack 4. In this embodiment, the alternating current output by the motor 12 is a three-phase medium-frequency alternating current. Specifically, the drive shaft of the engine 11 is coaxially fixed with the drive shaft of the motor 12. A flywheel is installed on the engine 11. When the engine 11 is started, the flywheel is driven to rotate. When the flywheel reaches a certain speed, it can drive the drive shaft of the engine 11 to rotate circumferentially with itself as the center. The drive shaft of the engine 11 drives the drive shaft of the motor 12 to rotate circumferentially with its own axis as the center, so as to control the rotor to rotate and cut the magnetic field generated by the coil wound on the stator of the motor 12, convert mechanical energy into electrical energy and output it in the form of alternating current. The electrical energy output by the motor 12 can power electrical equipment and the battery installed on the generator set.

[0082] Reference Figure 1 , which is a generator set starting control system provided in Example 1 of the present invention, the generator set starting control system includes a main control unit 2, and a processing module 3, a battery pack 4, an inverter module 5 and a display module that are communicatively connected to the main control unit 2, and the processing module 3, the inverter module 5 and the display module are all connected to the battery pack 4.

[0083] Among them, the main control unit 2 can control the opening and closing of the battery pack 4 and the processing module 3, the processing module 3 is connected to the output end of the motor 12, the first output end of the processing module 3 is connected to the input end of the battery pack 4, the second output end of the processing module 3 is connected to the first input end of the inverter module 5, and the second input end of the inverter module 5 is connected to the output end of the battery pack 4; the inverter module 5 can convert the input direct current into alternating current of preset specifications.

[0084] The display module can display the operating information of the generator, including the operating status information of the engine 11, the operating status information of the motor 12, the power consumption information of the load connected to the generator output circuit, and the power information of the battery pack 4, so that the user can understand the operating status of the generator set and thus facilitate the user to control the generator set.

[0085] Reference Figure 1 The processing module 3 includes a first working state and a second working state, and the processing module 3 can switch between the first working state and the second working state; the processing module 3 is used to convert the AC power output by the motor 12 into DC power in the first working state, and the processing module 3 is used to convert the DC power output by the battery pack 4 into AC power in the second working state.

[0086] When the motor 12 is generating electricity normally, the processing module 3 can convert the AC power output by the motor 12 into DC power when it is in the first working state. The current output from the processing module 3 can be converted into AC power after passing through the inverter module 5 for use by the AC load; when the motor 12 is not working, the inverter module 5 can convert the DC power output by the battery pack 4 into AC power as a backup power supply to power the AC load.

[0087] When the generator is started, the processing module 3 works in the second working state. The specific control process is: the main control unit 2 monitors the start signal for controlling the start of the generator in real time. When the start signal is detected, a power-on command is sent to the battery pack 4 and the processing module 3. The battery pack 4 starts after receiving the power-on command. When the battery pack 4 is enabled, it outputs three-phase alternating current after being processed by the processing module 3. After the alternating current is passed, the coil on the stator of the motor 12 generates a magnetic field and drives the rotor of the motor 12 to rotate around its own axis, converting electrical energy into mechanical energy. At this time, the motor 12 operates as a motor. At this time, the motor The drive shaft of 12 can drive the drive shaft of the engine 11 to rotate synchronously. The drive shaft of the engine 11 drives the flywheel to rotate when it rotates; the flywheel stores energy when it rotates, and when the motor 12 reaches a certain speed, the speed of the flywheel is controlled to reach a preset value. At this time, the flywheel can drive the drive shaft of the engine 11 to rotate circumferentially around its own axis, and the engine 11 starts and runs; after the engine 11 is started, the battery pack 4 can be turned off, and the rotor of the motor 12 can be driven to rotate by the engine 11, so that the motor 12 outputs AC power to power the electrical equipment connected to the generator set or to charge the battery pack 4.

[0088] The inverter module 5 includes a bidirectional DC-DC conversion unit 51 and a bidirectional inverter conversion unit 52 connected in a bidirectional manner. The bidirectional DC-DC conversion unit 51 is used to convert the input voltage into a preset specification voltage. The battery pack 4 is bidirectionally connected to the bidirectional DC-DC conversion unit 51; the bidirectional inverter conversion unit 52 is used to convert the input DC power into AC power or convert the input AC power into DC power.

[0089] Reference Figure 1 and Figure 2 In this embodiment, the bidirectional DC-DC conversion unit 51 includes a first insulated gate field effect transistor 311 and a second insulated gate field effect transistor 312 connected in series.

[0090] The drain of the first insulated gate field effect transistor 311 is connected to the positive electrode of the battery pack 4 , the source of the first insulated gate field effect transistor 311 is connected to the negative electrode of the battery pack 4 , and the gate of the first insulated gate field effect transistor 311 is used to receive a control voltage signal.

[0091] The source of the second insulated gate field effect transistor 312 is connected to the drain of the first insulated gate field effect transistor 311, the drain of the second insulated gate field effect transistor 312 is connected to the negative electrode of the battery pack 4, the access end of the generator 12 is connected between the source of the second insulated gate field effect transistor 312 and the drain of the first insulated gate field effect transistor 311, and the gate of the second insulated gate field effect transistor 312 is used to receive external control signals; the insulated gate field effect transistor can control the direction of current as needed through its switching characteristics to achieve bidirectional flow of energy, so that energy can be transferred from one DC source to another DC source, so as to realize efficient conversion between different voltages by the voltage specification conversion unit 31.

[0092] The bidirectional DC-DC conversion unit 51 further includes a common mode inductor 313, one end of which is connected to the positive electrode of the battery pack 4, and the other end of which is connected between the drain of the first insulated gate field effect transistor 311 and the source of the second insulated gate field effect transistor 312. The common mode inductor 313 can suppress the electromagnetic waves generated by the high-speed signal line from radiating outward, reduce electromagnetic interference, and ensure the stable operation of the circuit and the accurate transmission of data.

[0093] In this embodiment, the motor 12 uses a high-voltage motor (the operating voltage is about 220 volts), the battery pack 4 uses a low-voltage battery (the operating voltage of the battery pack is several tens of volts), and the output voltage of the motor 12 is adapted to the input voltage of the bidirectional inverter conversion unit 52.

[0094] The processing module 3 includes an engine power supply module 31, a motor drive unit 32 and an AC-DC conversion unit 33, which are connected to each other.

[0095] The motor drive unit 32 is in communication connection with the main control unit 2. The engine power supply module 31 is used to supply power to the starting / working module of the engine 11. The starting / working module of the engine 11 includes a battery, an ignition switch, a starter, a motor, a relay or an electromagnetic switch, etc. The motor drive unit 32 can convert direct current into alternating current, and the AC-DC conversion unit 33 can convert the alternating current output by the motor 12 into direct current.

[0096] The output end of the bidirectional DC-DC conversion unit 51 is connected to the input end of the motor drive unit 32; the output end of the motor drive unit 32 is connected to the input end of the motor 12, and the motor drive unit 32 drives the motor 12 to rotate after being powered on;

[0097] The output end of the motor 12 is connected to the input end of the AC-DC conversion unit 33, and the output end of the AC-DC conversion unit 33 is connected to the input end of the bidirectional inverter conversion unit 52;

[0098] The output circuit of the system includes a first output circuit, a second output circuit, a third output circuit, a fourth output circuit and a fifth output circuit.

[0099] The first output circuit includes a battery pack 4, a bidirectional DC-DC conversion unit 51, a motor drive unit 32 and a motor 12 connected in sequence; the electric energy output by the battery pack 4 is sequentially passed through the DC-DC conversion unit 51 and the motor drive unit 32 to supply power to the motor 12, thereby driving the motor 12 to operate;

[0100] The second output circuit includes a battery pack 4, an engine power supply module 31 and an engine 11 connected in sequence; the electric energy output by the battery pack 4 can directly power the engine power supply module 31, thereby powering the engine 11;

[0101] The third output circuit includes a motor 12, an AC-DC conversion unit 33 and a bidirectional inverter conversion unit 52 connected in sequence; the voltage output by the motor 12 can be sequentially passed through the AC-DC conversion unit 33, the bidirectional DC-DC conversion unit 51 and the DC-AC conversion unit 52 to supply power to the AC load connected to the generator; in addition, the voltage output by the battery pack 4 can also be sequentially passed through the bidirectional DC-DC conversion unit 51 and the DC-AC conversion unit 52 to supply power to the AC load connected to the generator;

[0102] The fourth output circuit includes the motor 12, the AC-DC conversion unit 33, the bidirectional DC-DC conversion unit 51 and the battery pack 4 connected in sequence; the fourth output circuit uses the electric energy output by the motor 12 to charge the battery pack 4;

[0103] The fifth output circuit includes an AC power grid, a bidirectional inverter conversion unit 52, a bidirectional DC-DC conversion unit 51 and a battery pack 4 connected in sequence. The fifth output circuit uses the electric energy of the external AC power grid to charge the battery pack 4.

[0104] Reference Figure 1 and Figure 2 The AC-DC conversion unit 33 includes three parallel motor three-phase rectifier circuits, and the motor three-phase rectifier circuits are respectively set corresponding to the three-phase output of the motor 12. Figure 1 , the output phases of the motor 12 include three phases, U, V and W, and each output circuit is connected to a rectifier circuit respectively;

[0105] Reference Figure 2 The rectifier circuit includes a thyristor 331 and a diode 332 connected in series, the anode of the thyristor 331 is connected to the positive output terminal of the motor 12, the cathode of the thyristor 331 is connected to the negative output terminal of the motor 12, and the control electrode of the thyristor 331 is connected to a control signal source, which is used to send a current control signal.

[0106] The anode of the diode 332 is connected to the negative output terminal of the motor 12, and the cathode of the diode 332 is connected between the anode of the thyristor 331 and the positive output terminal of the motor 12; the cathode of the thyristor 331 is connected to the positive bus, and the cathode of the diode 332 is connected to the negative bus.

[0107] When a positive voltage is applied to the anode of the thyristor 331, if a positive trigger signal is input from the control electrode, a base current will pass through the control electrode. This base current is amplified inside the thyristor 331, causing the thyristor 331 to change from a cut-off state to a conducting state. After the thyristor 331 is turned on, as long as the voltage between the anode and cathode of the thyristor 331 can be maintained, the thyristor 331 will continue to remain in the conducting state; further, the output current can be controlled by controlling the control electrode of the thyristor 331 to convert the AC output of the motor 12 into a specified specification; at the same time, the diode 332 has unidirectional conductivity, and the diode 332 can convert the AC output of the motor 12 into a unidirectional pulsed DC, so that the generator can power the DC load or charge the battery pack 4.

[0108] Reference Figure 2 The AC-DC conversion unit 33 also includes a filter capacitor 333. The three-phase rectification circuits of the motor are all connected in parallel with the filter capacitor 333. The two ends of the rectification circuit are respectively connected to the positive electrode of the filter capacitor 333 and the negative electrode of the filter capacitor 333. The filter capacitor 333 can absorb the voltage fluctuation in the circuit, filter out the noise in the circuit, and ensure the stability and reliability of the circuit; in addition, the filter capacitor 333 can store energy when the voltage increases and release energy when the voltage decreases to ensure the continuous operation of the circuit.

[0109] Reference Figure 2 The motor drive unit 32 includes three first control loops connected in parallel, and the three first control loops are respectively arranged corresponding to the three-phase output of the motor 12; the first control loop includes a first MOS tube 321 and a second MOS tube 322 connected in series,

[0110] The drain of the first MOS tube 321 is connected to one end of the battery pack 4, the drain of the second MOS tube 322 is connected to the source of the first MOS tube 321, and the source of the second MOS tube 322 is connected to the other end of the battery pack 4; the gate of the first MOS tube 321 is used to receive a first control signal, and the gate of the second MOS tube 322 is used to receive a second control signal.

[0111] In this embodiment, both the first MOS tube 321 and the second MOS tube 322 are NMOS tubes. The first MOS tube 321 is responsible for the main current path. By adjusting the gate voltage of the NMOS tube, the conductive state of the first MOS tube 321 can be changed, thereby controlling the direction of the motor. Specifically, when the gate voltage of the first MOS tube 321 reaches a certain value, the first MOS tube 321 is in a conductive state, allowing current to flow from the source of the first MOS tube 321 to the drain, thereby driving the motor 12 to rotate.

[0112] The second MOS tube 322 can cut off or limit the current and be used as a control switch to achieve overcurrent protection or other protection functions; by controlling the gate voltage of the second NMOS tube, the circuit can be quickly cut off to prevent overcurrent or other abnormal conditions from damaging the generator.

[0113] Reference Figure 1 and Figure 2 In this embodiment, the voltage output by the battery pack 4 is boosted / stepped down by the bidirectional DC-DC conversion unit 51 and then connected to the first MOS tube 321 and the second MOS tube 322, so that the motor drive unit 32 can power the motor 12 with a suitable voltage.

[0114] In the preferred implementation of this embodiment, the inverter module 5 also includes an EPS control module, and the full English name of the EPS control module and EPS is Emergency Power Supply, i.e., emergency power supply; the EPS control module is bidirectionally connected to the DC-AC conversion unit 52, and the EPS control module is connected to the mains power grid; the EPS control module can monitor the power supply status of the mains (including whether the voltage and frequency are within the normal range), and determine the power supply mode of the AC output circuit according to the power supply status of the mains: when the mains is normal, the EPS control module will ensure that the power-consuming equipment is directly powered by the mains; when the mains is interrupted or abnormal, the EPS control module will quickly switch to the backup power supply (i.e., the battery pack 3 or the generator) to ensure the normal operation of the power-consuming equipment; when the mains is restored, the EPS control module will quickly switch the power-consuming equipment back to the mains power supply, and charge the battery pack 3 at the same time to ensure sufficient backup energy. The EPS control module ensures that the generator can start quickly in the event of a power failure, providing uninterrupted power supply for key loads, thereby protecting the safety of key equipment and personnel.

[0115] In the preferred implementation of this embodiment, the generator set start-up control system also includes an MPPT module 6, the full name of MPPT in English is Maximum Power Point Tracking, which is translated as maximum power point tracking; the MPPT module 6 is connected to the battery pack 4, and the MPPT module 6 is used to receive the electric energy output by the external power generation system. The output end of the MPPT module 6 can be connected to the DC load

[0116] Reference Figure 1 The input end of the MPPT module 6 is connected to the output end of an external power generation system such as a solar panel, a wind power generation system or a geothermal power generation system, so that the electric energy of the external power generation system is stored in the battery pack 4, and the battery pack 4 is charged, so that the battery pack 4 can store sufficient electric energy for use when the engine 11 is started; electric energy is a clean energy, and electric energy is used preferentially when driving the engine 11, which can reduce the possibility of starting the engine 11 by using fuel, save energy, and reduce exhaust emissions.

[0117] The MPPT module 6 can maximize the output power of power generation equipment such as solar panels and transmit it to the battery pack 4 for storage, thereby improving the efficiency of the solar panels. In addition, a third DC-DC conversion unit is provided inside the MPPT module 6, which can convert the electric energy generated by the solar panel into characteristic rules for use by DC loads, so that the generator can power electrical appliances of various rules.

[0118] Example 2

[0119] Reference Figure 3 , the difference between embodiment 2 and embodiment 1 is that the battery pack 4 uses a low-voltage battery, the motor 12 uses a low-voltage motor, and the input / output voltage of the battery pack 4 is adapted to the working voltage of the motor 12;

[0120] The processing module 3 includes an engine power supply module 31, a motor drive unit 32 and an AC-DC conversion unit 33, which are connected to each other.

[0121] The engine power supply module 31 is used to supply power to the start / operation module of the engine 11, the motor drive unit 32 is used to convert direct current into alternating current, and the AC-DC conversion unit 33 is used to convert the alternating current output by the motor 12 into direct current;

[0122] The battery pack 4 is bidirectionally connected to the motor drive unit 32, and the motor drive unit 32 is bidirectionally connected to the motor 12; the motor drive unit 32 drives the motor 12 to rotate after being powered on;

[0123] The output end of the motor 12 is connected to the input end of the AC-DC conversion unit 33, and the output end of the AC-DC conversion unit 33 is connected to the input end of the bidirectional inverter conversion unit 52;

[0124] The output circuits of the system include a sixth output circuit, a seventh output circuit, an eighth output circuit, a ninth output circuit, a tenth output circuit, an eleventh output circuit and a twelfth output circuit,

[0125] The sixth output circuit includes a battery pack 4, a bidirectional DC-DC conversion unit 51, a motor drive unit 32 and a motor 12 connected in sequence; the sixth output circuit uses the electric energy output by the battery pack 4 to power the motor 12 and drive the motor 12 to run;

[0126] The seventh output circuit includes a battery pack 4, a bidirectional DC-DC conversion unit 51 and a bidirectional inverter conversion unit 52 connected in sequence; the sixth output circuit uses the electric energy output by the battery pack 4 to supply power to an external AC load;

[0127] The eighth output circuit includes a battery pack 4, an engine power supply module 31 and an engine 11 connected in sequence; the eighth output circuit uses the electric energy output by the battery pack 4 to power the DC power-consuming equipment;

[0128] The ninth output circuit includes a motor 12, an AC-DC conversion unit 33, a bidirectional DC-DC conversion unit 51 and a battery pack 4 connected in sequence; the ninth output circuit uses the electric energy output by the motor 12 to charge the battery pack;

[0129] The tenth output circuit includes a motor 12, an AC-DC conversion unit 33, a bidirectional DC-DC conversion unit 51 and a bidirectional inverter conversion unit 52 connected in sequence; the tenth output circuit uses the electric energy output by the motor 12 to charge the AC load;

[0130] The eleventh output circuit includes the motor 12, the AC-DC conversion unit 33, the motor drive unit 32, the bidirectional DC-DC conversion unit 51 and the battery pack 4, and the eleventh output circuit is used to charge the battery pack 4;

[0131] The twelfth output circuit includes an AC power grid, a bidirectional inverter conversion unit 52, a bidirectional DC-DC conversion unit 51 and a battery pack 4. The twelfth output circuit is used to charge the battery pack 4 using the electric energy of the AC power grid.

[0132] When the input / output voltage of the battery pack 4 is adapted to the working voltage of the motor 12, the battery pack 4 can directly power the motor 12 without the need for voltage boost / voltage reduction processing, and there is no need to set up a DC voltage converter to adjust the voltage output by the battery panel, thereby saving product manufacturing costs.

[0133] The control principle of Example 2 is the same as that of Example 1, and for the sake of brevity of the specification, this example will not be repeated.

[0134] Example 3

[0135] refer to Figure 4 and Figure 5 The difference between the embodiment 3 and the embodiment 1 is that the processing module 3 includes an engine power supply module 31 and a current mode conversion unit 34.

[0136] The current mode conversion unit 34 is communicatively connected to the main control unit 2, the engine power supply module 31 is used to power the starting / working module of the engine 11, and the current mode conversion unit 34 has a first conversion mode and a second conversion mode; the current mode conversion unit 34 can switch between the first conversion mode and the second conversion mode.

[0137] The current mode conversion unit 34 is used to convert the AC power output by the generator 12 into DC power of preset specifications when in the first conversion mode;

[0138] The current mode conversion unit 34 is used to convert the direct current output by the battery pack 4 into alternating current that can be used to drive the generator 12 in the second conversion mode;

[0139] The output circuits of the system include a thirteenth output circuit, a fourteenth output circuit, a fifteenth output circuit, a sixteenth output circuit, a seventeenth output circuit and an eighteenth output circuit.

[0140] The thirteenth output circuit includes a battery pack 4, a bidirectional DC-DC conversion unit 51, a current mode conversion unit 34 and a motor 12 connected in sequence; the thirteenth output circuit supplies power to the motor 12 through the battery pack 4 to drive the motor 12 to run;

[0141] The fourteenth output circuit includes a battery pack 4, an engine power supply module 31 and an engine 11 connected in sequence; the fourteenth output circuit uses the battery pack 4 to supply power to the engine power supply module 31 to start the engine 11 or enable the engine 11 to operate normally;

[0142] The fifteenth output circuit includes the motor 12, the current mode conversion unit 34 and the bidirectional inverter conversion unit 52 connected in sequence; the fifteenth output circuit uses the electric energy output by the motor 12 to supply power to the AC load;

[0143] The sixteenth output circuit includes the motor 12, the current mode conversion unit 34, the bidirectional DC-DC conversion unit 51 and the battery pack 4 connected in sequence; the sixteenth output circuit is used to charge the battery pack 4 using the electric energy output by the motor 12;

[0144] The seventeenth output circuit includes the motor 12, the current mode conversion unit 34, the engine power supply module 31 and the engine 11 connected in sequence; the seventeenth output circuit is used to directly use the electric energy output by the motor 12 to power the engine power supply module 31;

[0145] The eighteenth output circuit includes an AC power grid, a bidirectional inverter conversion unit 52, a bidirectional DC-DC conversion unit 51 and a battery pack 4 connected in sequence. The eighteenth output circuit is used to charge the battery pack 4 using the electric energy input from the external AC power grid.

[0146] The current mode conversion unit 34 includes three second control loops connected in parallel, and the three second control loops correspond to the three-phase access terminals of the generator 12 respectively; in this embodiment, the three output phases U, V and W of the generator 12 are respectively connected to one second control loop;

[0147] One end of the second control loop is connected to the positive electrode of the battery pack 4, and the other end is connected to the negative electrode of the battery pack 4; the second control loop includes a first junction field effect transistor 341 and a second junction field effect transistor 342 connected in reverse series, the drain of the first junction field effect transistor 341 is connected to the positive electrode of the battery pack 4 through the bidirectional DC-DC conversion unit 51, the drain of the first junction field effect transistor 341 is connected to one end of the battery pack 4, the source of the second junction field effect transistor 342 is connected to the drain of the first junction field effect transistor 341, and the The drain of the second junction field effect transistor 342 is connected to the other end of the battery pack 4, and the access end of the generator 12 is connected between the source of the second junction field effect transistor 342 and the drain of the first junction field effect transistor 341. The source of the first junction field effect transistor 341 and the drain of the second junction field effect transistor 342 are used to connect the input end of the bidirectional DC-DC conversion unit 51; the gate of the first junction field effect transistor 341 is used to receive the third control signal, and the gate of the second junction field effect transistor 342 is used to receive the fourth control signal.

[0148] When the generator 12 operates normally and the current mode conversion unit 32 is in the first conversion mode, the current flows to the battery pack 4 via the output end of the generator 12. The PN junction in the first junction field effect transistor 321 and the PN junction in the second junction field effect transistor 322 have unidirectional conductivity. The PN junction in the junction field effect transistor can convert the AC power output by the generator 12 into unidirectional pulsed DC power to achieve a rectification effect. The AC power output by the generator 12 is rectified by the control circuit and becomes DC power, which can supply power to the DC load or charge the battery pack 4.

[0149] The first junction field effect transistor 321 is responsible for the main current path. By adjusting the gate voltage of the first junction field effect transistor 321, the conductive state of the first junction field effect transistor 321 can be changed, thereby controlling the direction of the motor. Specifically, when the gate voltage of the first junction field effect transistor 321 reaches a certain value, the first junction field effect transistor 321 is in the on state, allowing current to flow from the source of the first junction field effect transistor 321 to the drain, thereby driving the generator 12 to rotate.

[0150] The second junction field effect transistor 322 can cut off or limit the current and be used as a control switch to achieve overcurrent protection or other protection functions; by controlling the gate voltage of the second junction field effect transistor 322, the circuit can be quickly cut off to prevent overcurrent or other abnormal conditions from causing damage to the generator.

[0151] Before the engine 11 is started, the engine 11 and the motor 12 are both in a stopped state. After the battery pack 4 is turned on, when the current mode conversion unit 32 is in the second conversion mode, the current flows to the motor 12 via the output end of the battery pack 4. At this time, the first junction field effect transistor 321 (the second junction field effect transistor 322) can convert the on / off DC power input by the battery pack 4 into AC power; the DC power is converted into three-phase AC power by the junction field effect transistor to drive the drive shaft of the generator 12 to rotate, thereby driving the engine 11 to start.

[0152] The control loop is connected in parallel with a filter unit 343, one end of the filter unit 343 is connected to the input end of the control loop, and the other end is connected to the output end of the control loop; in this embodiment, the filter unit uses a filter capacitor, the positive electrode of the filter capacitor is connected to the positive electrode of the battery pack 4, and the negative electrode of the filter capacitor is connected to the negative electrode of the battery pack 4; the filter capacitor can absorb voltage fluctuations in the circuit, filter out noise in the circuit, and ensure the stability and reliability of the circuit.

[0153] Example 4

[0154] Reference Figure 6 The difference between the fourth embodiment and the third embodiment is that the input / output voltage of the battery pack 4 is adapted to the working voltage of the motor 12, and the processing module 3 includes an engine power supply module 31, a current mode conversion unit 34 and a second DC-DC conversion unit 35.

[0155] The current mode conversion unit 34 is in communication connection with the main control unit 2. The engine power supply module 31 is used to supply power to the start / operation module of the engine 11. The current mode conversion unit 34 has a first conversion mode and a second conversion mode (utilizing the characteristics of the junction field effect transistor). The current mode conversion unit 34 can switch back and forth between the first conversion mode and the second conversion mode.

[0156] The current mode conversion unit 34 is used to convert the AC power output by the motor 12 into DC power of preset specifications when in the first conversion mode;

[0157] The current mode conversion unit 34 is used to convert the direct current output by the battery pack 4 into alternating current that can be used to drive the motor 12 in the second conversion mode;

[0158] The output circuits of the system include a nineteenth output circuit, a twentieth output circuit, a twenty-first output circuit, a twenty-second output circuit, a twenty-third output circuit, a twenty-fourth output circuit, a twenty-fifth output circuit and a twenty-sixth output circuit.

[0159] The nineteenth output circuit includes a battery pack 4, a second DC-DC conversion unit 35, a current mode conversion unit 34 and a motor 12 connected in sequence; the nineteenth output circuit is used to use the electric energy output by the battery pack 4 to power the motor 12;

[0160] The twentieth output circuit includes a battery pack 4, a second DC-DC conversion unit 35, an engine power supply module 31 and an engine 11 connected in sequence; the nineteenth output circuit is used to use the electric energy output by the battery pack 4 to power the engine 11;

[0161] The twenty-first output circuit includes a battery pack 4, a bidirectional DC-DC conversion unit 51 and a bidirectional inverter conversion unit 52 connected in sequence; the twenty-first output circuit is used to use the electric energy output by the battery pack 4 to supply power to an external AC load;

[0162] The twenty-second output circuit includes the motor 12, the current mode conversion unit 34, the bidirectional DC-DC conversion unit 51 and the battery pack 4 connected in sequence; the twenty-second output circuit can charge the battery pack 4 using the electric energy output by the motor 12 when generating electricity;

[0163] The twenty-third output circuit includes the motor 12, the current mode conversion unit 34, the bidirectional DC-DC conversion unit 51 and the bidirectional inverter conversion unit 52 connected in sequence; the twenty-first output circuit is used to use the electric energy output by the motor 12 to power the external AC load;

[0164] The twenty-fourth output circuit includes the motor 12, the current mode conversion unit 34, the second DC-DC conversion unit 35, the engine power supply module 31 and the engine 11 which are connected in sequence; the twenty-fourth output circuit is used to use the electric energy output by the motor 12 to power the engine 11;

[0165] The twenty-fifth output circuit includes the motor 12, the current mode conversion unit 34 and the engine 11 connected in sequence; the twenty-fifth output circuit is used to use the electric energy output by the motor 12 to power the engine 11;

[0166] The twenty-sixth output circuit includes an AC power grid, a bidirectional inverter conversion unit 52, a bidirectional DC-DC conversion unit 51 and a battery pack 4 connected in sequence; the twenty-sixth output circuit is used to utilize the electric energy input from the AC power grid to power the battery pack.

[0167] When the input / output voltage of the battery pack 4 is adapted to the working voltage of the motor 12, the battery pack 4 is directly connected to the current mode conversion unit 34. The battery pack 4 can directly power the motor 12. There is no need to set up a DC voltage converter to adjust the voltage output by the battery panel, which can reduce the production cost of the product.

[0168] It should be understood that the embodiment is for illustration only and the scope of the patent application is not limited by this structure.

[0169] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", "an implementation", "a preferred implementation" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0170] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A generator set starting control system, the generator set comprising an engine (11) and a motor (12); a drive shaft of the motor (12) is connected to a drive shaft of the engine (11), characterized in that: The generator set start-up control system comprises a main control unit (2), a processing module (3) and a battery pack (4) which are communicatively connected to the main control unit (2), and the battery pack (4) is connected to the processing module (3); The main control unit (2) is used to control the opening and closing of the battery pack (4) and the processing module (3); when the battery pack (4) is activated, the processing module (3) drives the motor (12) to rotate, thereby driving the engine (11) to operate.

2. A generator set starting control system as claimed in claim 1, characterized in that: The system further comprises an inverter module (5) communicatively connected to the main control unit (2), and the inverter module (5) is connected to the motor (12) via the processing module (3); The inverter module (5) comprises a bidirectional DC-DC conversion unit (51) and a bidirectional inverter conversion unit (52) connected in a bidirectional manner. The bidirectional DC-DC conversion unit (51) is used to convert an input voltage into a preset voltage. The battery pack (4) is bidirectionally connected to the bidirectional DC-DC conversion unit (51). The bidirectional inverter conversion unit (52) is used to convert input DC power into AC power or convert input AC power into DC power.

3. A generator set starting control system as claimed in claim 2, characterized in that: The output voltage of the motor (12) is adapted to the input voltage of the bidirectional inverter conversion unit (52), The processing module (3) includes an engine power supply module (31), a motor drive unit (32) and an AC-DC conversion unit (33) which are connected to each other. The motor drive unit (32) is communicatively connected to the main control unit (2); the engine power supply module (31) is used to supply power to the start / operation module of the engine (11); the motor drive unit (32) is used to convert direct current into alternating current; and the alternating current-to-direct current conversion unit (33) is used to convert the alternating current output by the motor (12) into direct current; The output end of the bidirectional DC-DC conversion unit (51) is connected to the input end of the motor drive unit (32); the output end of the motor drive unit (32) is connected to the input end of the motor (12); and the motor drive unit (32) drives the motor (12) to rotate after being powered on; The output end of the motor (12) is connected to the input end of the AC-DC conversion unit (33), and the output end of the AC-DC conversion unit (33) is connected to the input end of the bidirectional inverter conversion unit (52); The output circuit of the system includes a first output circuit, a second output circuit, a third output circuit, a fourth output circuit and a fifth output circuit. The first output circuit comprises a battery pack (4), a bidirectional DC-DC conversion unit (51), a motor drive unit (32) and a motor (12) which are connected in sequence; The second output circuit includes a battery pack (4), an engine power supply module (31) and an engine (11) connected in sequence; The third output circuit includes a motor (12), an AC-DC conversion unit (33) and a bidirectional inverter conversion unit (52) which are connected in sequence; The fourth output circuit comprises a motor (12), an AC-DC conversion unit (33), a bidirectional DC-DC conversion unit (51) and a battery pack (4) which are connected in sequence; The fifth output loop comprises an AC power grid, a bidirectional inverter conversion unit (52), a bidirectional DC-DC conversion unit (51) and a battery pack (4) which are connected in sequence.

4. A generator set starting control system as claimed in claim 2, characterized in that: The input / output voltage of the battery pack (4) of the battery is adapted to the working voltage of the motor (12), The processing module (3) includes an engine power supply module (31), a motor drive unit (32) and an AC-DC conversion unit (33) which are connected to each other. The engine power supply module (31) is used to supply power to the start / operation module of the engine (11); the motor drive unit (32) is used to convert direct current into alternating current; and the alternating current-to-direct current conversion unit (33) is used to convert the alternating current output by the motor (12) into direct current; The battery pack (4) is bidirectionally connected to the motor drive unit (32), and the motor drive unit (32) is bidirectionally connected to the motor (12); when the motor drive unit (32) is powered on, it drives the motor (12) to rotate; The output end of the motor (12) is connected to the input end of the AC-DC conversion unit (33), and the output end of the AC-DC conversion unit (33) is connected to the input end of the bidirectional inverter conversion unit (52); The output circuits of the system include a sixth output circuit, a seventh output circuit, an eighth output circuit, a ninth output circuit, a tenth output circuit, an eleventh output circuit and a twelfth output circuit, The sixth output circuit comprises a battery pack (4), a bidirectional DC-DC conversion unit (51), a motor drive unit (32) and a motor (12) which are connected in sequence; The seventh output circuit comprises a battery pack (4), a bidirectional DC-DC conversion unit (51) and a bidirectional inverter conversion unit (52) which are connected in sequence; The eighth output circuit includes a battery pack (4), an engine power supply module (31) and an engine (11) which are connected in sequence; The ninth output circuit comprises a motor (12), an AC-DC conversion unit (33), a bidirectional DC-DC conversion unit (51) and a battery pack (4) which are connected in sequence; The tenth output circuit comprises a motor (12), an AC-DC conversion unit (33), a bidirectional DC-DC conversion unit (51) and a bidirectional inverter conversion unit (52) which are connected in sequence; The eleventh output circuit comprises a motor (12), an AC-DC conversion unit (33), a motor drive unit (32), a bidirectional DC-DC conversion unit (51) and a battery pack (4); The twelfth output loop comprises an AC power grid, a bidirectional inverter conversion unit (52), a bidirectional DC-DC conversion unit (51) and a battery pack (4).

5. A generator set starting control system as claimed in claim 3 or 4, characterized in that: The AC-DC conversion unit (33) comprises three parallel motor three-phase rectification circuits, and the motor three-phase rectification circuits are respectively arranged corresponding to the three-phase outputs of the motor (12); The three-phase rectification circuit of the motor comprises a thyristor (331) and a diode (332) connected in series, wherein the anode of the thyristor (331) is connected to the output end of the motor (12), the cathode of the thyristor (331) is connected to the positive end of the diode (332), the control electrode of the thyristor (331) is connected to a control signal source; the cathode of the diode (332) is connected to the output end of the motor (12); the cathode of the thyristor (331) is connected to the positive electrode of the bus, and the cathode of the diode (332) is connected to the negative electrode of the bus.

6. A generator set starting control system as claimed in claim 5, characterized in that: The AC-DC conversion unit (33) further comprises a filter capacitor (333), the three-phase rectification circuit of the motor is connected in parallel with the filter capacitor (333), and the two ends of the three-phase rectification circuit of the motor are respectively connected to the positive electrode of the filter capacitor (333) and the negative electrode of the filter capacitor (333).

7. A generator set starting control system as claimed in any one of claims 3, 4, 5 or 6, characterized in that: The motor drive unit (32) comprises three first control loops connected in parallel, the three first control loops being respectively connected to the three-phase outputs of the motor (12); the first control loop comprises a first MOS transistor (321) and a second MOS transistor (322) connected in series, The drain of the first MOS tube (321) is connected to one electrode end of the battery pack (4), the drain of the second MOS tube (322) is connected to the source of the first MOS tube (321), and the source of the second MOS tube (322) is connected to the other electrode end of the battery pack (4); the gate of the first MOS tube (321) is used to receive a first control signal, and the gate of the second MOS tube (322) is used to receive a second control signal.

8. A generator set starting control system as claimed in claim 2, characterized in that: The output voltage of the motor (12) is adapted to the input voltage of the bidirectional inverter conversion unit (52), The processing module (3) includes an engine power supply module (31) and a current mode conversion unit (34), The current mode conversion unit (34) is communicatively connected to the main control unit (2), the engine power supply module (31) is used to supply power to the start / operation module of the engine (11), and the current mode conversion unit (34) has a first conversion mode and a second conversion mode; The current mode conversion unit (34) is used to convert the alternating current output by the generator (12) into direct current of preset specifications when in a first conversion mode; The current mode conversion unit (34) is used to convert the direct current output by the battery pack (4) into alternating current that can be used to drive the motor (12) in the second conversion mode; The output circuits of the system include a thirteenth output circuit, a fourteenth output circuit, a fifteenth output circuit, a sixteenth output circuit, a seventeenth output circuit and an eighteenth output circuit. The thirteenth output circuit comprises a battery pack (4), a bidirectional DC-DC conversion unit (51), a current mode conversion unit (34) and a motor (12) which are connected in sequence; The fourteenth output circuit includes a battery pack (4), an engine power supply module (31) and an engine (11) connected in sequence; The fifteenth output circuit includes a motor (12), a current mode conversion unit (34) and a bidirectional inverter conversion unit (52) connected in sequence; The sixteenth output circuit includes a motor (12), a current mode conversion unit (34), a bidirectional DC-DC conversion unit (51), and a battery pack (4) connected in sequence; The seventeenth output circuit includes a motor (12), a current mode conversion unit (34), an engine power supply module (31) and an engine (11) which are connected in sequence; The eighteenth output loop comprises an AC power grid, a bidirectional inverter conversion unit (52), a bidirectional DC-DC conversion unit (51) and a battery pack (4) which are connected in sequence.

9. A generator set starting control system as claimed in claim 2, characterized in that: The input / output voltage of the battery pack (4) is adapted to the working voltage of the motor (12), the processing module (3) comprises an engine power supply module (31), a current mode conversion unit (34) and a second DC-DC conversion unit (35), The current mode conversion unit (34) is communicatively connected to the main control unit (2), the engine power supply module (31) is used to supply power to the start / operation module of the engine (11), and the current mode conversion unit (34) has a first conversion mode and a second conversion mode; The current mode conversion unit (34) is used to convert the alternating current output by the generator (12) into direct current of preset specifications when in a first conversion mode; The current mode conversion unit (34) is used to convert the direct current output by the battery pack (4) into alternating current that can be used to drive the motor (12) in the second conversion mode; The output circuits of the system include a nineteenth output circuit, a twentieth output circuit, a twenty-first output circuit, a twenty-second output circuit, a twenty-third output circuit, a twenty-fourth output circuit, a twenty-fifth output circuit and a twenty-sixth output circuit. The nineteenth output circuit comprises a battery pack (4), a second DC-DC conversion unit (35), a current mode conversion unit (34) and a motor (12) connected in sequence; The twentieth output circuit comprises a battery pack (4), a second DC-DC conversion unit (35), an engine power supply module (31) and an engine (11) which are connected in sequence; The twenty-first output circuit comprises a battery pack (4), a bidirectional DC-DC conversion unit (51) and a bidirectional inverter conversion unit (52) which are connected in sequence; The twenty-second output circuit comprises a motor (12), a current mode conversion unit (34), a bidirectional DC-DC conversion unit (51) and a battery pack (4) which are connected in sequence; The twenty-third output circuit comprises a motor (12), a current mode conversion unit (34), a bidirectional DC-DC conversion unit (51), and a bidirectional inverter conversion unit (52) which are connected in sequence; The twenty-fourth output circuit comprises a motor (12), a current mode conversion unit (34), a second DC-DC conversion unit (35), an engine power supply module (31) and an engine (11) which are connected in sequence; The twenty-fifth output circuit includes a motor (12), a current mode conversion unit (34) and a generator (11) connected in sequence; The twenty-sixth output loop comprises an AC power grid, a bidirectional inverter conversion unit (52), a bidirectional DC-DC conversion unit (51) and a battery pack (4) which are connected in sequence.

10. A generator set starting control system as claimed in claim 8 or 9, characterized in that: The current mode conversion unit (34) comprises three second control loops connected in parallel, the three second control loops respectively corresponding to the three-phase access terminals of the generator (12); one end of the second control loop is connected to the positive electrode of the battery pack (4), and the other end is connected to the negative electrode of the battery pack (4); the second control loop comprises a first junction field effect transistor (341) and a second junction field effect transistor (342) connected in reverse series, the source electrode of the first junction field effect transistor (341) is connected to one end of the battery pack (4), and the source electrode of the second junction field effect transistor (342) is connected to the first junction field effect transistor (341). The drain of the second junction field effect transistor (341) is connected to the drain of the first junction field effect transistor (341), the drain of the second junction field effect transistor (342) is connected to the other end of the battery pack (4), the access end of the generator (12) is connected between the source of the second junction field effect transistor (342) and the drain of the first junction field effect transistor (341), the drain of the second junction field effect transistor (342) is used to connect to the input end of the bidirectional DC-DC conversion unit (51); the gate of the first junction field effect transistor (341) is used to receive the third control signal, and the gate of the second junction field effect transistor (342) is used to receive the fourth control signal.

11. A generator set starting control system as claimed in claim 1, 2, 3, 4, 5, 7, 8, 9 or 10, characterized in that: The system further comprises an MPPT module (6), the MPPT module (6) being connected to the battery pack (4), the MPPT module (6) being used to receive electric energy output by an external power generation system, and the output end of the MPPT module (6) being accessible to a DC load.

12. A generator set starting control system as claimed in any one of claims 1, 2, 3, 4, 5, 7, 8, 9 or 10, characterized in that: The main control unit (2) is communicatively connected to a display module, the display module being used to display operating information of the generator, the operating information including operating status information of the engine (11), power consumption information of a load connected to an output circuit of the generator, operating status information of an inverter module, operating status information of a processing module and power information of a battery pack (4).

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