Generator set starting control system

Abstract

The utility model 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] This application relates to the field of generator drive technology, and more particularly to a generator set starting control system. Background Technology

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

[0003] When an engine starts, it needs to overcome various frictional forces and resistances to move from a stationary state. At the same time, it also needs to heat and lubricate various components. Therefore, the energy consumed by an engine during startup is much higher than the energy consumed by an engine during normal operation.

[0004] In the prior art, engines are typically started using fuel-powered starting methods. Patent CN114992029B discloses a diesel engine emergency starting system and its working method. Although with continuous technological advancements, it is possible to precisely control the engine speed and fuel consumption, fuel consumption is still relatively high when starting an engine using fuel, and the cost of generating electricity is also high. In addition, starting an engine using fuel ignition also produces a large amount of harmful gases and noise. Utility Model Content

[0005] In order to reduce the power generation cost of generators and reduce the environmental pollution caused by generators during startup, this application provides a generator set startup control system.

[0006] This application 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 an engine and a motor. The flywheel ring gear of the motor meshes with the flywheel ring gear of the engine through a transmission mechanism. The engine is used to drive the motor to rotate. When the motor rotates, it can output AC power. The generator set starting control system includes a main control unit, a processing module and a battery pack that are communicatively connected to the main control unit. 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 activated, it drives the motor to rotate through the processing module, thereby driving the engine to run.

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

[0009] The inverter module comprises a bidirectional DC-DC conversion unit and a bidirectional inverter conversion unit connected bidirectionally, the bidirectional DC-DC conversion unit is used for converting an input voltage into a preset specification voltage, and a battery pack is bidirectionally connected with the bidirectional DC-DC conversion unit; the bidirectional inverter conversion unit is used for converting input DC into AC or converting input AC into DC.

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

[0011] The processing module comprises an engine power supply module, a motor driving unit and an AC-DC conversion unit connected with each other,

[0012] The motor driving unit is in communication connection with the master control unit, the engine power supply module is used for supplying power for a start-up / working module of the engine, the motor driving unit is used for converting DC into AC, and the AC-DC conversion unit is used for converting AC output by the motor into DC;

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

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

[0015] The output loop of the system comprises a first output loop, a second output loop, a third output loop, a fourth output loop and a fifth output loop,

[0016] The first output loop comprises a battery pack, a bidirectional DC-DC conversion unit, a motor driving unit and a motor connected in sequence;

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

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

[0019] The fourth output loop comprises 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 comprises an AC power grid, a bidirectional inverter conversion unit, a bidirectional DC-DC conversion unit and a battery pack connected in sequence.

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

[0022] The processing module comprises an engine power supply module, a motor driving unit and an AC-DC conversion unit connected in sequence,

[0023] The engine power supply module is configured to supply power to the starting / working module of the engine, the motor driving unit is configured to convert DC power into AC power, and the AC-DC conversion unit is configured to convert AC power output by the motor into DC power;

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

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

[0026] The output circuit of the system comprises 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 comprises the battery pack, the bidirectional DC-DC conversion unit, the motor driving unit and the motor connected in sequence;

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

[0029] The eighth output circuit comprises the battery pack, the engine power supply module and the engine connected in sequence;

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

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

[0032] The eleventh output circuit comprises the motor, the AC-DC conversion unit, the motor driving unit, the bidirectional DC-DC conversion unit and the battery pack;

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

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

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

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

[0037] Optionally, the motor driving unit comprises three parallel first control circuits, and the three first control circuits are connected with three phases of the motor output respectively; the first control circuit comprises a first MOS tube and a second MOS tube connected in series,

[0038] the drain of the first MOS tube is connected with one electrode terminal of the battery pack, the drain of the second MOS tube is connected with the source of the first MOS tube, and the source of the second MOS tube is connected with the other electrode terminal of the battery pack; the gate of the first MOS tube is used for receiving a first control signal, and the gate of the second MOS tube is used for receiving 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 comprises an engine power supply module and a current mode conversion unit,

[0041] The current mode conversion unit is in communication connection with the main control unit, the engine power supply module is used for supplying power for the starting / working module of the engine, and the current mode conversion unit has a first conversion mode and a second conversion mode;

[0042] The current mode conversion unit is used for converting the AC power output by the generator into DC power of a preset specification in the first conversion mode.

[0043] The current mode conversion unit is used for converting the DC power output by the battery pack into AC power that can be used to drive the generator in the second conversion mode.

[0044] The output circuit of the system comprises 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 comprises the battery pack, the bidirectional DC-DC conversion unit, the current mode conversion unit and the motor connected in sequence.

[0046] The fourteenth output circuit comprises the battery pack, the engine power supply module and the engine connected in sequence.

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

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

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

[0050] The eighteenth output circuit comprises an alternating current power grid, a bidirectional inversion 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 operating voltage of the motor, and the processing module comprises an engine power supply module, a current mode conversion unit and a second DC-DC conversion unit,

[0052] The current mode conversion unit is in communication connection with the main control unit, and the engine power supply module is used for supplying power to the starting / operating module of the engine, and the current mode conversion unit has a first conversion mode and a second conversion mode;

[0053] The current mode conversion unit is used for converting the alternating current output by the generator into direct current of a preset specification when in the first conversion mode;

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

[0055] The output circuits of the system comprise 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 comprises 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 comprises 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 comprises a battery pack, a bidirectional DC-DC conversion unit and a bidirectional inversion conversion unit connected in sequence;

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

[0060] The twenty-third output circuit comprises 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 comprises a motor, a current mode conversion unit, a second DC-DC conversion unit, a motor power supply module and a motor connected in sequence.

[0062] The twenty-fifth output circuit comprises a motor, a current mode conversion unit and a motor connected in sequence.

[0063] The twenty-sixth output circuit comprises 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 comprises three second control circuits connected in parallel, and the three second control circuits correspond to three phases of the generator respectively; one end of the second control circuit 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 circuit comprises a first junction field effect tube and a second junction field effect tube connected in reverse series, the source of the first junction field effect tube is connected to one end of the battery pack, the source of the second junction field effect tube is connected to the drain of the first junction field effect tube, the drain of the second junction field effect tube is connected to the other end of the battery pack, the access end of the generator is connected between the source of the second junction field effect tube and the drain of the first junction field effect tube, and the drain of the second junction field effect tube is used for connecting the input end of the bidirectional DC-DC conversion unit; the gate of the first junction field effect tube is used for receiving a third control signal, and the gate of the second junction field effect tube is used for receiving a fourth control signal.

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

[0066] Optionally, the main control unit is communicatively connected with a display module, and the display module is used for displaying running information of the generator, and the running information comprises running state information of the motor, load power consumption information of the generator connected to the output circuit, inverter module running state information, processing module running state information and battery pack power information.

[0067] In summary, the present application has the following beneficial technical effects:

[0068] When the engine needs to be started, the battery pack is used to supply power to the processing module, and the processing module converts the power output by the battery pack into a specification that can be used by the motor. After the coils on the motor stator are energized, a magnetic field is generated, driving the motor rotor to rotate around its own axis, converting electrical energy into mechanical energy. At this time, the motor drives the drive shaft of the engine to rotate, and when the engine reaches a certain speed, it starts to run. After the engine starts, the battery pack can no longer supply power to the motor, and the motor rotor is driven to rotate by the engine. When the motor rotor cuts the magnetic induction lines generated by the stator, it converts mechanical energy into electrical energy to power the electrical equipment connected to the generator set. Electrical energy is a clean energy source that does not produce harmful exhaust gases and noise when used, reducing the environmental pollution caused by the generator during startup, allowing the generator to be used in more environmentally demanding situations. In addition, the cost of using electrical energy to start the engine is lower than that of using fuel to start the engine, and using the processing module to drive the motor to start the engine can save the power generation cost of the generator. BRIEF DESCRIPTION OF DRAWINGS

[0069] Figure 1 A control principle diagram of a generator set starting control system provided for Embodiment 1 of the present application;

[0070] Figure 2 A circuit diagram of the generator set starting control system provided for Embodiment 1 of the present application;

[0071] Figure 3 A control principle diagram of a generator set starting control system provided for Embodiment 2 of the present application;

[0072] Figure 4 A control principle diagram of a generator set starting control system provided for Embodiment 3 of the present application;

[0073] Figure 5 A circuit diagram of the generator set starting control system provided for Embodiment 3 of the present application;

[0074] Figure 6 A control principle diagram of a generator set starting control system provided for Embodiment 2 of the present application.

[0075] 11, engine; 12, motor; 2, master control unit; 3, processing module; 31, engine power supply module; 311, first insulated gate field effect tube; 312, second insulated gate field effect tube; 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 tube; 342, second junction field effect tube; 343, filtering 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 implementation, functional features and advantages of the present application will be further described with reference to the embodiments, with reference to the accompanying drawings. DETAILED DESCRIPTION

[0077] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the accompanying drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0078] In the description of the present application, it is understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0079] In the description of the present application, unless otherwise specified and limited, it is necessary to explain that the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be mechanical connection or electrical connection, it can be the communication between the two elements, it can be direct connection, or indirect connection through intermediate medium, and the specific meaning of the above terms can be understood by the person skilled in the art according to the specific circumstances.

[0080] Embodiment 1

[0081] Reference Figure 1The generator set comprises an engine 11 and a motor 12, the driving shaft of the engine 11 is connected with the driving shaft of the motor 12, the engine 11 can drive the motor 12 to rotate when rotating, the motor 12 can convert mechanical energy into electrical energy and output in the form of alternating current when rotating, and the electrical energy is used to power the electrical equipment and charge the battery pack 4; in the embodiment, the alternating current output by the motor 12 is three-phase intermediate frequency alternating current; specifically, the driving shaft of the engine 11 is coaxially fixed with the driving 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 rotating speed, the driving shaft of the engine 11 can be driven to rotate circumferentially with the flywheel as the center; the driving shaft of the engine 11 drives the driving shaft of the motor 12 to rotate circumferentially with the axis of the driving shaft of the engine 11 as the center, so as to control the rotor to rotate to cut the magnetic field generated by the coil wound on the stator of the motor 12, convert mechanical energy into electrical energy and output in the form of alternating current, and the electrical energy output by the motor 12 can be used to power the electrical equipment and power the battery installed on the generator set.

[0082] With reference to Figure 1 The generator set starting control system provided in the embodiment 1 comprises a main control unit 2, a processing module 3, a battery pack 4, an inverter module 5 and a display module which are in communication connection with the main control unit 2, and the processing module 3, the inverter module 5 and the display module are all connected with the battery pack 4.

[0083] 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 with the output end of the motor 12, the first output end of the processing module 3 is connected with the input end of the battery pack 4, the second output end of the processing module 3 is connected with the first input end of the inverter module 5, the second input end of the inverter module 5 is connected with the output end of the battery pack 4; the inverter module 5 can convert the input direct current into alternating current of a preset specification.

[0084] The display module can display the running information of the generator, the running information comprises the running state information of the engine 11, the running state information of the motor 12, the load power information of the load connected with the output circuit of the generator and the power information of the battery pack 4, so that the user can know the running state of the generator set and control the generator set.

[0085] With reference to Figure 1 The processing module 3 comprises a first working state and a second working state, and the processing module 3 can be switched between the first working state and the second working state; the processing module 3 is used to convert the alternating current output by the motor 12 into direct current when in the first working state, and the processing module 3 is used to convert the direct current output by the battery pack 4 into alternating current when in the second working state.

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

[0087] When the generator is started, the processing module 3 works in the second working state, and the specific control process is as follows: the main control unit 2 monitors the start signal for controlling the start of the generator in real time, and sends a power-on instruction to the battery pack 4 and the processing module 3 when the start signal is monitored. The battery pack 4 starts after receiving the power-on instruction. The battery pack 4 is enabled and outputs three-phase alternating current after being processed by the processing module 3. After the alternating current is turned on, the coils on the stator of the motor 12 generate a magnetic field and drive 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, and the drive shaft of the motor 12 can drive the drive shaft of the engine 11 to rotate synchronously. When the drive shaft of the engine 11 rotates, the flywheel rotates and stores energy. When the motor 12 reaches a certain speed, the speed of the flywheel reaches a preset value, and 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 to operate. After the engine 11 starts, the battery pack 4 can be turned off, and the rotor of the motor 12 is driven to rotate by the engine 11, so that the motor 12 outputs alternating current to power the electrical equipment connected to the generator set or 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 bidirectionally. The bidirectional DC-DC conversion unit 51 is used to convert the input voltage into a preset specification voltage, and 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 direct current into alternating current or convert the input alternating current into direct current.

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

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

[0091] The source of the second insulated gate field effect tube 312 is connected with the drain of the first insulated gate field effect tube 311, the drain of the second insulated gate field effect tube 312 is connected with the negative pole of the battery pack 4, the access end of the generator 12 is connected between the source of the second insulated gate field effect tube 312 and the drain of the first insulated gate field effect tube 311, and the gate of the second insulated gate field effect tube 312 is used for receiving external control signals; the insulated gate field effect tube can control the direction of current according to needs through the switching characteristic, realizes the bidirectional flow of energy, so that energy can be transmitted from one DC source to another DC source, so as to realize efficient conversion between different voltages of the voltage specification conversion unit 31.

[0092] The bidirectional DC-DC conversion unit 51 further comprises a common mode inductor 313, one end of the common mode inductor 313 is connected with the positive pole of the battery pack 4, and the other end is connected between the drain of the first insulated gate field effect tube 311 and the source of the second insulated gate field effect tube 312. The common mode inductor 313 can inhibit the electromagnetic wave 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 the embodiment, the motor 12 adopts a high-voltage motor (the working voltage is about 220 volts), the battery pack 4 adopts a low-voltage battery (the working voltage of the battery pack is dozens 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 comprises an engine power supply module 31, a motor driving unit 32 and an AC-DC conversion unit 33 connected in sequence,

[0095] The motor driving unit 32 is in communication connection with the main control unit 2, the engine power supply module 31 is used for supplying power to the starting / working module of the engine 11, the starting / working module of the engine 11 comprises a storage battery, an ignition switch, a starter, a motor, a relay or an electromagnetic switch and the like; the motor driving unit 32 can convert DC into AC, and the AC-DC conversion unit 33 can convert the AC output by the motor 12 into DC;

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

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

[0098] The output loop of the system comprises a first output loop, a second output loop, a third output loop, a fourth output loop and a fifth output loop,

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

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

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

[0102] The fourth output circuit comprises 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 comprises the AC power grid, the bidirectional inverter conversion unit 52, the bidirectional DC-DC conversion unit 51 and the battery pack 4 connected in sequence, and the fifth output circuit uses the electric energy of the external AC power grid to charge the battery pack 4.

[0104] Referring to Figure 1 and Figure 2 , the AC-DC conversion unit 33 comprises three parallel motor three-phase rectifier circuits, and the motor three-phase rectifier circuits are respectively arranged corresponding to the three-phase output of the motor 12, referring to Figure 1 , the output phase of the motor 12 comprises three U, V and W, and each output circuit is connected to a rectifier circuit;

[0105] Referring to Figure 2 , the rectifier circuit comprises 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, and the control signal source 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 the anode of the thyristor 331 is applied with a forward voltage, if a forward trigger signal is input from the control electrode, a base current will pass through the control electrode, and the base current will be 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 the 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, and the alternating current output by the motor 12 can be converted into a specified specification; at the same time, the diode 332 has a unidirectional conduction property, and the diode 332 can convert the alternating current output by the motor 12 into a unidirectional pulse direct current, so that the generator can supply power to a direct current load or charge the battery pack 4.

[0108] Referring to Figure 2 , the AC-DC conversion unit 33 further includes a filter capacitor 333, and the three-phase rectifier circuits of the motor are connected in parallel with the filter capacitor 333, and the two ends of the rectifier circuits 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 voltage fluctuations in the circuit, filter out 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 rises and release energy when the voltage decreases, ensuring the continuous operation of the circuit.

[0109] Referring to Figure 2 , the motor driving unit 32 includes three parallel first control circuits, and the three first control circuits are respectively arranged corresponding to the three-phase outputs of the motor 12; the first control circuit 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 the embodiment, the first MOS tube 321 and the second MOS tube 322 are both NMOS tubes, the first MOS tube 321 is responsible for the main current path, by adjusting the gate voltage of the NMOS tube, the conduction state of the first MOS tube 321 can be changed, and then the steering of the motor is controlled. Specifically, when the gate voltage of the first MOS tube 321 reaches a certain value, the first MOS tube 321 is in the on state, allowing current to flow from the source to the drain of the first MOS tube 321, thereby driving the motor 12 to rotate.

[0112] The second MOS tube 322 can cut off or limit the current, and is used as a control switch to realize 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 causing damage to the generator.

[0113] Referring to Figure 1 and Figure 2 In the embodiment, the voltage output by the battery pack 4 is connected to the first MOS tube 321 and the second MOS tube 322 after being boosted or stepped down by the bidirectional DC-DC conversion unit 51, so that the motor driving unit 32 can supply power to the motor 12 at a suitable voltage.

[0114] In the preferred embodiment of the present embodiment, the inverter module 5 further comprises an EPS control module, the English full name of EPS is Emergency Power Supply, i.e. emergency power supply; the EPS control module is bidirectionally connected with the DC-AC conversion unit 52, and the EPS control module is connected with the power grid of the mains; the EPS control module can monitor the power supply state of the mains (including whether the voltage and frequency are within the normal range), and determine the power supply mode of the AC output loop according to the power supply state of the mains: when the mains is normal, the EPS control module will ensure that the electrical equipment is directly powered by the mains; when the mains is interrupted or abnormal, the EPS control module will quickly switch to the standby power supply (i.e. the battery pack 3 or the generator) to ensure the normal operation of the electrical equipment; when the mains is restored, the EPS control module will quickly switch the electrical equipment back to the mains power supply, while charging the battery pack 3 to ensure sufficient standby energy. The EPS control module ensures that the generator can be started quickly when the power fails, providing uninterrupted power supply for critical loads, thereby protecting the safety of critical equipment and personnel.

[0115] In the preferred embodiment of the present embodiment, the generator set starting control system further comprises an MPPT module 6, MPPT is the English full name of Maximum Power Point Tracking, which means maximum power point tracking; the MPPT module 6 is connected with 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 with the DC load

[0116] Referring to Figure 1 , the input end of the MPPT module 6 is connected with the output end of the external power generation system such as the solar panel, the wind power generation system or the geothermal power generation system, so that the electric energy of the external power generation system is stored in the battery pack 4 to charge the battery pack 4, so that the battery pack 4 can store sufficient electric energy for starting the engine 11; electric energy is clean energy, which is preferred to be used when driving the engine 11, which can reduce the possibility of starting the engine 11 by using fuel, save energy and reduce exhaust emission.

[0117] The MPPT module 6 can maximize the output power of the power generation equipment such as the solar panel and deliver it to the battery pack 4 for storage, thereby improving the efficiency of the solar panel. In addition, the third DC-DC conversion unit is arranged in the MPPT module 6, which can convert the electric energy generated by the solar panel into a characteristic rule for use by the DC load, so that the generator can supply power to a variety of electric appliances.

[0118] Embodiment 2

[0119] Referring to Figure 3 , the difference between embodiment 2 and embodiment 1 is that the battery pack 4 selects a low-voltage battery, and the motor 12 selects 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 comprises an engine power supply module 31, a motor driving unit 32 and an AC-DC conversion unit 33 connected with each other,

[0121] The engine power supply module 31 is used to supply power to the starting / working module of the engine 11, the motor driving unit 32 is used to convert the DC power into AC power, and the AC-DC conversion unit 33 is used to convert the AC power output by the motor 12 into DC power;

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

[0123] The output end of the motor 12 is connected with the input end of the AC-DC conversion unit 33, and the output end of the AC-DC conversion unit 33 is connected with 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 the battery pack 4, the bidirectional DC-DC conversion unit 51, the motor driving unit 32 and the motor 12 connected in sequence; the sixth output circuit uses the electric energy output by the battery pack 4 to power the motor 12 to drive the motor 12 to run;

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

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

[0128] The ninth 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 ninth output circuit uses the electric energy output by the motor 12 to charge the battery pack;

[0129] The tenth output circuit includes the motor 12, the AC-DC conversion unit 33, the bidirectional DC-DC conversion unit 51 and the 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 driving 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 the AC power grid, the bidirectional inverter conversion unit 52, the bidirectional DC-DC conversion unit 51 and the battery pack 4, and the twelfth output circuit is used to use the electric energy of the AC power grid to charge the battery pack 4.

[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 boosting / dropping processing, and there is no need to set a DC voltage converter to adjust the voltage output by the battery panel, thereby saving the manufacturing cost of the product.

[0133] The control principle of the embodiment 2 is the same as that of the embodiment 1, and this embodiment will not be described again for the sake of brevity of the description.

[0134] Embodiment 3

[0135] Reference Figure 4 and Figure 5 Example 3 differs from Example 1 in that the processing module 3 comprises an engine power supply module 31 and a current mode conversion unit 34,

[0136] The current mode conversion unit 34 is in communication connection with the master 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; the current mode conversion unit 34 can be switched between the first conversion mode and the second conversion mode.

[0137] The current mode conversion unit 34, when in the first conversion mode, is used to convert the alternating current output by the generator 12 into direct current of a preset specification;

[0138] The current mode conversion unit 34, when in the second conversion mode, 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;

[0139] The output circuit of the system comprises 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 comprises the battery pack 4, the bidirectional direct current-direct current conversion unit 51, the current mode conversion unit 34 and the 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 operate;

[0141] The fourteenth output circuit comprises the battery pack 4, the engine power supply module 31 and the engine 11 connected in sequence; the fourteenth output circuit supplies power to the engine power supply module 31 by using the battery pack 4 to start the engine 11 or make the engine 11 work normally;

[0142] The fifteenth output circuit comprises the motor 12, the current mode conversion unit 34 and the bidirectional inverter conversion unit 52 connected in sequence; the fifteenth output circuit supplies power to the alternating current load by using the electrical energy output by the motor 12 when generating electricity;

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

[0144] The seventeenth output circuit comprises 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 supply power to the engine power supply module 31 by directly using the electrical energy output by the motor 12;

[0145] The eighteenth output circuit comprises an alternating current power grid, a bidirectional inversion conversion unit 52, a bidirectional direct current-direct current conversion unit 51 and the battery pack 4 connected in sequence, and is used for charging the battery pack 4 by using the power input from the external alternating current power grid.

[0146] The current mode conversion unit 34 comprises three parallel second control circuits corresponding to the three phases of the generator 12; in this embodiment, the U, V and W three output phases of the generator 12 are connected to one second control circuit respectively;

[0147] One end of the second control circuit is connected to the positive pole of the battery pack 4, and the other end is connected to the negative pole of the battery pack 4; the second control circuit comprises a first junction field effect tube 341 and a second junction field effect tube 342 connected in reverse series, the drain of the first junction field effect tube 341 is connected to the positive pole of the battery pack 4 through the bidirectional direct current-direct current conversion unit 51, the drain of the first junction field effect tube 341 is connected to one end of the battery pack 4, the source of the second junction field effect tube 342 is connected to the drain of the first junction field effect tube 341, the drain of the second junction field effect tube 342 is connected to the other end of the battery pack 4, the connection end of the generator 12 is connected between the source of the second junction field effect tube 342 and the drain of the first junction field effect tube 341, and the source of the first junction field effect tube 341 and the drain of the second junction field effect tube 342 are used for connecting the input end of the bidirectional direct current-direct current conversion unit 51; the gate of the first junction field effect tube 341 is used for receiving a third control signal, and the gate of the second junction field effect tube 342 is used for receiving a fourth control signal.

[0148] When the generator 12 is normally operated and the current mode conversion unit 32 is in the first conversion mode, the current flows from the output end of the generator 12 to the battery pack 4, the PN junction in the first junction field effect tube 321 and the PN junction in the second junction field effect tube 322 have unidirectional conductivity, the PN junction in the junction field effect tube can convert the alternating current output by the generator 12 into unidirectional pulse direct current, so as to realize the rectification effect. The alternating current output by the generator 12 becomes direct current after being rectified by the control circuit, which can supply power to the direct current load or charge the battery pack 4.

[0149] The first junction field effect tube 321 is responsible for the main current path, by adjusting the gate voltage of the first junction field effect tube 321, the conduction state of the first junction field effect tube 321 can be changed, and then the rotation direction of the motor is controlled. Specifically, when the gate voltage of the first junction field effect tube 321 reaches a certain value, the first junction field effect tube 321 is in the conduction state, allowing the current to flow from the source to the drain of the first junction field effect tube 321, thereby driving the generator 12 to rotate.

[0150] The second junction field effect transistor 322 can cut off or limit the current, and is 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 damaging the generator.

[0151] Before the engine 11 is started, the engine 11 and the motor 12 are in a shutdown state, and after the battery pack 4 is turned on, the current mode conversion unit 32 is in the second conversion mode, and the current flows from the output end of the battery pack 4 to the motor 12. At this time, the first junction field effect transistor 321 (the second junction field effect transistor 322 can convert the on / off direct current input by the battery pack 4 into alternating current; by using the junction field effect transistor to convert direct current into three-phase alternating current to drive the drive shaft of the generator 12 to rotate, thereby starting the engine 11.

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

[0153] Embodiment 4

[0154] Reference Figure 6 Embodiment 4 is different from embodiment 3 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 includes an engine power supply module 31, a current mode conversion unit 34, and a second direct current-direct current 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 / working module of the engine 11, the current mode conversion unit 34 has a first conversion mode and a second conversion mode (which utilizes the characteristics of the junction field effect transistor), and the current mode conversion unit 34 can reciprocally switch between the first conversion mode and the second conversion mode;

[0156] The current mode conversion unit 34 in the first conversion mode is used to convert the alternating current output by the motor 12 into direct current of a predetermined specification;

[0157] The current mode conversion unit 34 in the second conversion mode 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;

[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 the battery pack 4, the second DC-DC conversion unit 35, the current mode conversion unit 34 and the motor 12 connected in sequence; the nineteenth output circuit is used for supplying power to the motor 12 by using the electric energy output by the battery pack 4;

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

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

[0162] The twenty-second output circuit includes the motor 12, the current mode conversion unit 34 and 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 by using the electric energy output when the motor 12 generates electricity;

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

[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 connected in sequence; the twenty-fourth output circuit is used for supplying power to the engine 11 by using the electric energy output by the motor 12;

[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 for supplying power to the engine 11 by using the electric energy output by the motor 12;

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

[0167] When the input / output voltage of the battery pack 4 is adapted to the operating voltage of the motor 12, the battery pack 4 is directly connected with the current mode conversion unit 34, the battery pack 4 can directly supply power to the motor 12, without setting a direct current voltage converter to adjust the voltage output by the battery pack, which can reduce the manufacturing cost of the product.

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

[0169] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", "an implementation", "a preferred implementation" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0170] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A generator set starting control system, the generator set comprising an engine (11) and an electric machine (12); a drive shaft of the electric machine (12) is connected in an axial manner with a drive shaft of the engine (11), characterized in that, The generator set starting control system comprises a main control unit (2), a processing module (3) and a battery pack (4) in communication connection with the main control unit (2), and the battery pack (4) is connected with the processing module (3); The main control unit (2) is used for controlling the opening and closing of the battery pack (4) and the processing module (3); when the battery pack (4) is enabled, the processing module (3) drives the motor (12) to rotate, thereby driving the engine (11) to operate.

2. A genset starting control system as claimed in claim 1, wherein, The system further comprises an inverter module (5) in communication connection with the main control unit (2), and the inverter module (5) is connected with the motor (12) through the processing module (3); The inverter module (5) comprises a bidirectional DC-DC conversion unit (51) and a bidirectional inverter conversion unit (52) in bidirectional connection, the bidirectional DC-DC conversion unit (51) is used for converting input voltage into preset specification voltage, and the battery pack (4) is bidirectionally connected with the bidirectional DC-DC conversion unit (51); the bidirectional inverter conversion unit (52) is used for converting input DC into AC or converting input AC into DC.

3. A genset starting control system as claimed in claim 2, wherein, The output voltage of the motor (12) is adapted to the input voltage of the bidirectional inverter conversion unit (52), The processing module (3) comprises an engine power supply module (31), a motor driving unit (32) and an AC-DC conversion unit (33) in connection, The motor driving unit (32) is in communication connection with the main control unit (2), the engine power supply module (31) is used for supplying power to the starting / working module of the engine (11), the motor driving unit (32) is used for converting DC into AC, and the AC-DC conversion unit (33) is used for converting AC output by the motor (12) into DC; The output end of the bidirectional DC-DC conversion unit (51) is connected with the input end of the motor driving unit (32); the output end of the motor driving unit (32) is connected with the input end of the motor (12), and the motor driving unit (32) drives the motor (12) to rotate after being powered on; The output end of the motor (12) is connected with the input end of the AC-DC conversion unit (33), and the output end of the AC-DC conversion unit (33) is connected with the input end of the bidirectional inverter conversion unit (52); The output loop of the system comprises a first output loop, a second output loop, a third output loop, a fourth output loop and a fifth output loop, The first output loop comprises the battery pack (4), the bidirectional DC-DC conversion unit (51), the motor driving unit (32) and the motor (12) connected in sequence; The second output loop comprises the battery pack (4), the engine power supply module (31) and the engine (11) connected in sequence; The third output loop comprises the motor (12), the AC-DC conversion unit (33) and the bidirectional inverter conversion unit (52) connected in sequence; The fourth output loop comprises 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 fifth output loop comprises an AC power grid, the bidirectional inverter conversion unit (52), the bidirectional DC-DC conversion unit (51) and the battery pack (4) connected in sequence.

4. A genset starting control system as claimed in claim 2, wherein, The input / output voltage of the battery pack (4) of the battery is adapted to the operating voltage of the motor (12), The processing module (3) comprises an engine power supply module (31), a motor driving unit (32) and an AC-DC conversion unit (33) connected in series, The engine power supply module (31) is used to supply power to the starting / working module of the engine (11), the motor driving 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; The battery pack (4) is bidirectionally connected with the motor driving unit (32), and the motor driving unit (32) is bidirectionally connected with the motor (12); the motor driving unit (32) drives the motor (12) to rotate after being powered on; The output end of the motor (12) is connected with the input end of the AC-DC conversion unit (33), and the output end of the AC-DC conversion unit (33) is connected with the input end of the bidirectional inverter conversion unit (52); The output circuit of the system comprises 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 the battery pack (4), a bidirectional DC-DC conversion unit (51), the motor driving unit (32) and the motor (12) connected in series; The seventh output circuit comprises the battery pack (4), the bidirectional DC-DC conversion unit (51) and the bidirectional inverter conversion unit (52) connected in series; The eighth output circuit comprises the battery pack (4), the engine power supply module (31) and the engine (11) connected in series; The ninth output circuit comprises the motor (12), the AC-DC conversion unit (33), the bidirectional DC-DC conversion unit (51) and the battery pack (4) connected in series; The tenth output circuit comprises the motor (12), the AC-DC conversion unit (33), the bidirectional DC-DC conversion unit (51) and the bidirectional inverter conversion unit (52) connected in series; The eleventh output circuit comprises the motor (12), the AC-DC conversion unit (33), the motor driving unit (32), the bidirectional DC-DC conversion unit (51) and the battery pack (4); The twelfth output circuit comprises an AC power grid, the bidirectional inverter conversion unit (52), the bidirectional DC-DC conversion unit (51) and the battery pack (4).

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

6. A genset starting control system as claimed in claim 5, wherein, The alternating current-direct current conversion unit (33) further comprises a filter capacitor (333), and the motor three-phase rectification circuits are connected in parallel with the filter capacitor (333), and two ends of the motor three-phase rectification circuits are connected with a positive electrode of the filter capacitor (333) and a negative electrode of the filter capacitor (333) respectively.

7. A genset starting control system as claimed in any one of claims 3, 4, 5 or 6, wherein, The motor driving unit (32) comprises three parallel first control circuits corresponding to three phases of the motor (12) respectively, and each first control circuit comprises a first MOS tube (321) and a second MOS tube (322) connected in series, the drain electrode of the first MOS tube (321) is connected with one electrode end of the battery pack (4), the drain electrode of the second MOS tube (322) is connected with the source electrode of the first MOS tube (321), the source electrode of the second MOS tube (322) is connected with the other electrode end of the battery pack (4), the gate electrode of the first MOS tube (321) is used for receiving a first control signal, and the gate electrode of the second MOS tube (322) is used for receiving a second control signal.

8. A genset starting control system as claimed in claim 2, wherein, The output voltage of the motor (12) is adapted to the input voltage of the bidirectional inversion conversion unit (52), The processing module (3) comprises an engine power supply module (31) and a current mode conversion unit (34), the current mode conversion unit (34) is in communication connection with the main control unit (2), the engine power supply module (31) is used for supplying power for a 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) is used for converting alternating current output by the generator (12) into direct current of a preset specification in the first conversion mode; the current mode conversion unit (34) is used for converting 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 circuit of the system comprises 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 the battery pack (4), the bidirectional direct current-direct current conversion unit (51), the current mode conversion unit (34) and the motor (12) connected in sequence; the fourteenth output circuit comprises the battery pack (4), the engine power supply module (31) and the engine (11) connected in sequence; the fifteenth output circuit comprises the motor (12), the current mode conversion unit (34) and the bidirectional inversion conversion unit (52) connected in sequence; the sixteenth output circuit comprises the motor (12), the current mode conversion unit (34), the bidirectional direct current-direct current conversion unit (51) and the battery pack (4) connected in sequence; the seventeenth output circuit comprises the motor (12), the current mode conversion unit (34), the engine power supply module (31) and the engine (11) connected in sequence; the eighteenth output circuit comprises the alternating current grid, the bidirectional inversion conversion unit (52), the bidirectional direct current-direct current conversion unit (51) and the battery pack (4) connected in sequence.

9. A genset starting control system as claimed in claim 2, wherein, The input / output voltage of the battery pack (4) is adapted to the operating voltage of the motor (12), and 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 in communication connection with the main control unit (2), the engine power supply module (31) is used for supplying power to 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) is used for converting the alternating current output by the generator (12) into direct current of a preset specification in the first conversion mode; The current mode conversion unit (34) is used for converting 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 circuit of the system comprises 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 the battery pack (4), the second DC-DC conversion unit (35), the current mode conversion unit (34) and the motor (12) connected in sequence; The twentieth output circuit comprises the battery pack (4), the second DC-DC conversion unit (35), the engine power supply module (31) and the engine (11) connected in sequence; The twenty-first output circuit comprises the battery pack (4), the bidirectional DC-DC conversion unit (51) and the bidirectional inverter conversion unit (52) connected in sequence; The twenty-second output circuit comprises the motor (12), the current mode conversion unit (34) and the bidirectional DC-DC conversion unit (51) and the battery pack (4) connected in sequence; The twenty-third output circuit comprises the motor (12), the current mode conversion unit (34) and the bidirectional DC-DC conversion unit (51) and the bidirectional inverter conversion unit (52) connected in sequence; The twenty-fourth output circuit comprises 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) connected in sequence; The twenty-fifth output circuit comprises the motor (12), the current mode conversion unit (34) and the engine (11) connected in sequence; The twenty-sixth output circuit comprises an alternating current grid, a bidirectional inverter conversion unit (52), a bidirectional DC-DC conversion unit (51) and a battery pack (4) connected in sequence.

10. A genset starting control system as claimed in claim 8 or 9, wherein, The current mode conversion unit (34) comprises three parallel second control circuits corresponding to three phases of the generator (12); one end of the second control circuit is connected with the positive pole of the battery pack (4), and the other end is connected with the negative pole of the battery pack (4); the second control circuit comprises a first junction field effect tube (341) and a second junction field effect tube (342) connected in reverse series, the source of the first junction field effect tube (341) is connected with one end of the battery pack (4), the source of the second junction field effect tube (342) is connected with the drain of the first junction field effect tube (341), the drain of the second junction field effect tube (342) is connected with the other end of the battery pack (4), the connection end of the generator (12) is connected between the source of the second junction field effect tube (342) and the drain of the first junction field effect tube (341), and the drain of the second junction field effect tube (342) is used for connecting the input end of the bidirectional DC-DC conversion unit (51); the gate of the first junction field effect tube (341) is used for receiving a third control signal, and the gate of the second junction field effect tube (342) is used for receiving a fourth control signal.

11. A genset starting control system as claimed in claim 1, 2, 3, 4, 5, 7, 8, 9 or 10, characterized by, The system further comprises an MPPT module (6) connected with the battery pack (4), the MPPT module (6) is used for receiving electric energy output by an external power generation system, and an output end of the MPPT module (6) is available for a DC load.

12. A genset starting control system as claimed in one of claims 1, 2, 3, 4, 5, 7, 8, 9 or 10, characterized in that The main control unit (2) is in communication connection with a display module, and the display module is used for displaying operation information of the generator.

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