Hybrid power generator set control system

Abstract

The utility model relates to the technical field of generators, in particular to a hybrid power generator set control system which comprises a control module used for controlling start and stop of a generator, and a battery pack, a rectifier module and an inverter module which are in communication connection with the control module. The rectifier module is used for converting alternating current output by the first motor into direct current of a preset specification; the inversion module is used for converting the direct current output by the battery pack and / or the direct current output by the first motor after being rectified by the rectification module into alternating current of a preset specification; when the control module monitors a generator starting signal, the battery pack is started to supply power to the engine, electric energy output by the battery pack is used for starting a motor in the engine to start the engine, the electric energy is used for driving a load, and meanwhile the engine is controlled to work so that the load can not be driven or little load can be driven. And the noise of the engine and the oil consumption of the engine are reduced.

Description

Technical Field

[0001] This application relates to the field of generator technology, and more particularly to a hybrid power generator set control system. Background Technology

[0002] Fuel-fired generators are low-cost and efficient, finding wide applications in industrial and agricultural production, national defense, science and technology, and daily life. The core components of a fuel-fired generator are an engine and an electric motor. In existing technology, the engine converts the heat energy generated by burning fuel into mechanical energy to drive the electric motor, which in turn converts mechanical energy into electrical energy to supply power to electrical equipment.

[0003] In existing technologies, fuel generators are often used as automotive braking devices or emergency power sources. However, fuel generators consume a lot of fuel, generate noise, and produce harmful gases such as carbon dioxide and sulfur dioxide after combustion. With increasingly stringent carbon emission standards, traditional fuel generators struggle to meet these requirements. Furthermore, when used indoors (e.g., powering ventilators), generators must not only meet the equipment's power needs but also have very low noise levels and emissions. The noise generated by fuel generators mainly includes mechanical noise, combustion noise, and exhaust noise. Exhaust noise primarily consists of low-frequency pulsating noise caused by periodic exhaust, air column resonance noise in the exhaust duct, Helmholtz resonance noise in the cylinders, and eddy current noise. Exhaust noise is the most energy-intensive component of generator noise, significantly higher than intake noise and mechanical noise radiated from the engine body, making it a major part of the total engine noise. Therefore, improvements to traditional fuel generators are necessary. Utility Model Content

[0004] To reduce exhaust gases and noise generated by the generator during operation and improve the comfort of using the generator, a hybrid power generator set control system is provided.

[0005] To achieve the above-mentioned objectives of this application, this application provides a hybrid power generator set control system.

[0006] This application provides a hybrid power generator set control system. The generator set includes an engine and a first motor. The engine drives the first motor to rotate. The first motor outputs alternating current when it is running. The system includes a control module for controlling the start and stop of the generator, and a battery pack, a rectifier module, and an inverter module that are communicatively connected to the control module. The engine, control module, rectifier module, and inverter module are all connected to the battery pack.

[0007] The rectifier module is used to convert the AC power output from the first motor into DC power;

[0008] The inverter module is used to convert the DC power output from the first motor after rectification by the rectifier module into AC power, or to convert the AC power input from the AC power grid into DC power.

[0009] Optionally, the rectifier module includes an AC-DC conversion module, a first DC-DC conversion module, and an engine power supply module, and the inverter module includes a bidirectional DC-DC conversion module and a bidirectional inverter conversion module connected to each other.

[0010] The input terminal of the AC-DC conversion module is connected to the output terminal of the first motor.

[0011] The first output terminal of the AC-DC conversion module is connected to the input terminal of the bidirectional DC-DC conversion module, and the bidirectional inverter conversion module is bidirectionally connected to the bidirectional DC-DC conversion module.

[0012] The second output terminal of the AC-DC converter module is connected to the input terminal of the first DC-DC converter module, and the output terminal of the first DC-DC converter module is connected to the first input terminal of the engine power supply module.

[0013] The second input terminal of the engine power supply module is connected to the output terminal of the battery pack.

[0014] The engine power supply module is used to supply power to the engine start / operation module;

[0015] The first DC-DC conversion module is used to convert the input voltage signal into a voltage signal that meets the specifications for use with DC loads;

[0016] AC-DC conversion modules are used to convert alternating current (AC) into direct current (DC).

[0017] A bidirectional DC-DC converter module is used to convert an input voltage signal into a voltage signal of a preset specification;

[0018] A bidirectional inverter converter module is used to convert direct current to alternating current or vice versa.

[0019] Optionally, the system's output circuits include a first output circuit, a second output circuit, a third output circuit, a fourth output circuit, a fifth output circuit, a sixth output circuit, and a seventh output circuit;

[0020] The first output circuit includes a battery pack and an engine power supply module connected in sequence;

[0021] The second output circuit includes an AC power grid, a bidirectional inverter conversion module, a bidirectional DC-DC conversion module, a first DC-DC conversion module, and an engine power supply module connected in sequence.

[0022] The third output circuit includes a first motor, an AC-DC conversion module, a first DC-DC conversion module, and an engine power supply module connected in sequence.

[0023] The fourth output circuit is sequentially connected to the first motor, the AC-DC conversion module, and the engine power supply module.

[0024] The fifth output circuit includes a first motor, an AC-DC conversion module, a bidirectional DC-DC conversion module, and a bidirectional inverter conversion module connected in sequence.

[0025] The sixth output circuit includes a first motor, an AC-DC conversion module, a first DC-DC conversion module, and a battery pack connected in sequence;

[0026] The seventh output circuit includes an AC power grid, a bidirectional inverter conversion module, a bidirectional DC-DC conversion module, a first DC-DC conversion module, and a battery pack connected in sequence.

[0027] Optionally, the input voltage of the battery pack is adapted to the operating voltage of the first motor.

[0028] The rectifier module includes an AC-DC conversion module and an engine power supply module, and the inverter module includes a bidirectional DC-DC conversion module and a bidirectional inverter conversion module that are interconnected.

[0029] The input terminal of the AC-DC conversion module is connected to the output terminal of the first motor.

[0030] The first output terminal of the AC-DC conversion module is connected to the input terminal of the bidirectional inverter conversion module;

[0031] The output of the bidirectional inverter module is connected to the input of the bidirectional DC-DC converter module, and the output of the bidirectional DC-DC converter module is connected to the battery pack.

[0032] The second output terminal of the AC-DC converter module is connected to the first input terminal of the engine power supply module.

[0033] The second input terminal of the engine power supply module is connected to the output terminal of the battery pack.

[0034] The engine power supply module is used to drive the engine motor;

[0035] AC-DC conversion modules are used to convert alternating current (AC) into direct current (DC).

[0036] A bidirectional DC-DC converter module is used to convert an input voltage signal into a voltage signal of a preset specification;

[0037] A bidirectional inverter converter module is used to convert direct current to alternating current or vice versa.

[0038] Optionally, the system's output circuits include an eighth output circuit, a ninth output circuit, a tenth output circuit, an eleventh output circuit, a twelfth output circuit, and a thirteenth output circuit;

[0039] The eighth output circuit includes a battery pack and an engine power supply module connected in sequence;

[0040] The ninth output circuit includes the first motor, the AC-DC conversion module, and the engine power supply module connected in sequence;

[0041] The tenth output circuit includes the first motor, the AC-DC conversion module, and the bidirectional inverter conversion module connected in sequence;

[0042] The eleventh output circuit includes a first motor, an AC-DC conversion module, a bidirectional DC-DC conversion module, and a battery pack connected in sequence.

[0043] The twelfth output circuit includes an AC power grid, a bidirectional inverter conversion module, a bidirectional DC-DC conversion module, and a battery pack connected in sequence.

[0044] The thirteenth output circuit includes a battery pack, a bidirectional DC-DC conversion module, and a bidirectional inverter conversion module connected in sequence.

[0045] Optionally, the control module is used to monitor the generator start signal and, when the engine start signal is detected, activate the battery pack to supply power to the engine;

[0046] It also includes an acquisition module that is communicatively connected to the control module. The acquisition module is used to acquire the remaining power information of the battery pack and the load current data of the system output circuit. The control module selects one or more output circuits from the output circuits to supply power to the engine and / or electrical equipment based on the remaining power information of the battery pack and the load current data of the system output circuit.

[0047] Optionally, the inverter module also includes an EPS control module, which monitors the power supply status of the AC grid and determines the power supply mode of the electrical equipment based on the power supply status of the AC grid: if the AC grid output is normal, the AC grid is used to power the electrical equipment / battery pack; if the AC grid output is interrupted or abnormal, the battery pack and / or the first motor are started to power the electrical equipment.

[0048] Optionally, it also includes a power regulator that is communicatively connected to the control module. The power regulator is connected to the battery pack, and its input terminal is connected to the output terminal of an external power generation system. The power regulator includes an MPPT module that is communicatively connected to the control module. The MPPT module is used to adjust the output data of the external power supply so that the output data adjusts the charging parameters of the battery pack to match. The output data is at least one of voltage data, current data, and output power.

[0049] Optionally, the power regulator includes a third DC-DC conversion module that is communicatively connected to the control module.

[0050] The third DC-DC conversion module is used for voltage conversion.

[0051] Optionally, the control module is communicatively connected to a display module, which is used to display the generator's operating information, including the engine's operating status information, the first motor's operating status information, the load power consumption information connected to the generator's output circuit, and the battery pack's power information.

[0052] Optionally, it also includes a button module that is communicatively connected to the control module. The button module is used to issue control commands to control the generator to switch between different operating states.

[0053] In summary, this application includes the following beneficial technical effects:

[0054] The control module monitors the signals sent by the button module in real time. When the generator start signal is detected, the battery pack is started to supply power to the engine. The battery pack can provide power to the engine and drive the engine to rotate. After the engine is running normally, it can drive the first motor to rotate and generate electricity.

[0055] Once the first motor is running normally, the engine is driven primarily by the electrical energy output from the first motor. If too many electrical devices are connected to the generator, the battery pack powers the engine. When the electrical energy from both the battery pack and the first motor is insufficient to support the engine's normal operation, fuel is then used to drive the engine. Prioritizing the use of electrical energy from the first motor and the battery pack to drive the engine is a clean energy source that produces no harmful emissions during use, resulting in less environmental pollution and making it suitable for indoor use. Compared to using fuel to drive the engine, using the battery pack's electrical energy to start the motor in the engine to drive it, while simultaneously controlling the engine's operation to minimize or eliminate load driving, reduces engine noise and fuel consumption. Attached Figure Description

[0056] Figure 1 A schematic block diagram of the hybrid power generator set control system provided in Embodiment 1 of this application;

[0057] Figure 2 The circuit diagram of the rectifier module and inverter module in the hybrid generator set control system provided in Embodiment 1 of this application;

[0058] Figure 3The circuit diagram of the rectifier module and inverter module in the hybrid generator set control system provided in Embodiment 2 of this application.

[0059] Reference numerals: 11. Engine; 12. First motor; 2. Control module; 3. Battery pack; 4. Rectifier module; 41. AC-DC conversion module; 42. First DC-DC conversion module; 43. Generator power supply module; 5. Inverter module; 51. Bidirectional inverter conversion module; 52. Bidirectional DC-DC conversion module; 53. EPS control module; 6. Power regulator; 61. MPPT module; 62. Third DC-DC conversion module.

[0060] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0061] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0062] In the description of this application, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0063] In the description of this application, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0064] Example 1

[0065] Reference Figure 1 As shown, the generator set includes an engine 11 and a first motor 12. The engine 11 is used to drive the first motor 12 to rotate, and the first motor 12 outputs alternating current when it is running.

[0066] Engine 11 is equipped with an electronic control unit, namely Figure 1The ECU system in the middle, ECU stands for Electronic Control Unit, can control the driving mode and speed of engine 11. In this embodiment, engine 11 can be started by fuel-driven motor or by electric power-driven motor; the first motor 12 can be a permanent magnet motor.

[0067] Reference Figure 1 This application provides a hybrid power generator set control system, which includes a control module 2, and a battery pack 3, a rectifier module 4, an inverter module 5, and a power regulator 6 that are communicatively connected to the control module 2. The engine 11, control module 2, rectifier module 4, inverter module 5, and power regulator 6 are all connected to the battery pack 3. The battery pack 3 can provide a power source for the engine 11, driving the engine 11 to rotate. After normal operation, the engine 11 can drive the first motor 12 to rotate and generate electricity. Electricity is a clean energy source that does not produce harmful emissions during use, has less pollution to the environment, and is suitable for indoor use. Compared with using fuel to drive the engine 11, using electricity to drive the engine 11 can reduce the impact of the engine 11's exhaust noise on the surrounding environment and improve the comfort of using the generator.

[0068] Control module 2 controls the generator's start / stop and operating mode. Rectifier module 4 converts the AC output from the first motor 12 into DC power of a preset specification, enabling the generator to supply power to DC-powered devices or charge the battery pack 3. The first input terminal of inverter module 5 is connected to the output terminal of rectifier module 4, the second input terminal of inverter module 5 is connected to the output terminal of battery pack 3, and the third input terminal of inverter module 5 is connected to the AC power grid. Inverter module 5 converts the DC output from battery pack 3 and / or the DC output from the first motor 12 (after rectification by rectifier module 4) into AC power of a preset specification for use by AC-powered devices. Power regulator 6 adjusts the output parameters of each output circuit of the generator, optimizing the generator's power generation efficiency and ensuring that the generator achieves maximum power output under different environmental conditions. The generator's output parameters mainly include rated power, rated voltage, frequency, number of phases, power factor, rated current, rated speed, rated efficiency, rated frequency, and rated temperature rise.

[0069] In actual use, the output voltage (or output current) of the rectifier module 4 and the output voltage (or output current) of the inverter module 5 can be adjusted according to the usage scenario and actual needs of the generator, as long as they match the output voltage (or output current) required by the DC and AC electrical equipment to be powered. This embodiment does not impose any restrictions.

[0070] The hybrid generator set control system also includes a display module and a button module. The operating status information of the engine 11 includes the driving mode of the engine 11 and the speed of the engine 11. In this embodiment, the driving mode of the engine 11 includes two types: using the electric energy output by the battery pack 3 to drive the motor or the first motor 12, and using the electric energy output by the first motor 12 to drive the engine 11.

[0071] The operating status information of the first motor 12 includes the speed of the first motor 12, the operating cycle of the first motor 12, and the output parameters of the first motor 12. The load power consumption information connected to the generator output circuit includes the load current data of the DC power equipment connected to the generator output circuit and the load current data of the AC power equipment, which are used to indicate the consumption of the total load connected to the output circuit on the electrical energy generated by the generator.

[0072] The button module can issue control commands to control the generator to switch between different operating states; the control module 2 responds to the operating state switching signal output by the button module to switch the generator's operating state. The button module includes several input keys. In this embodiment, two input keys are set, one of which is the start / stop key and the other is the reset key. The start / stop key is used to control the generator's start and stop, and the reset key is used to realize the engine's reset function. When the user presses the start / stop key once, the button module sends a generator start signal; when the user presses the start / stop key again, the button module sends a stop signal; when the user presses the reset input key, the button module sends a reset signal, resetting the circuit to a known initial state, thereby reducing the possibility of generator system instability or damage caused by circuit abnormalities or faults.

[0073] In a preferred embodiment of this invention, the power output from the battery pack 3 is preferentially used to power the engine 11. When the battery pack 3 needs to be activated, the control module 2 sends a wake-up switch signal to the battery pack 3. After receiving the wake-up switch signal, the battery pack 3 discharges to provide power to the electrical equipment. When the battery pack 3 has too low a charge or too many electrical appliances connected to the generator, the power output from the AC grid can be temporarily used to power the engine 11, so that the engine 11 can continuously drive the first motor 12 to ensure the normal operation of the generator.

[0074] The control module 2 monitors the signals sent by the button module in real time. When a generator start signal is detected, the starter battery pack 3 supplies power to the engine 11. The current output by the battery pack 3 is rectified by the rectifier module 4 and then output to drive the engine 11. In a preferred embodiment of this example, before starting the starter battery pack 3 to supply power to the engine 11, the control module 2 obtains the remaining power information of the battery pack 3. When the remaining power information of the battery pack 3 is greater than or equal to the remaining power reference value, the starter battery pack 3 supplies power to the power supply equipment. When the remaining power information of the battery pack 3 is less than the remaining power reference value, there is a risk that the battery pack 3 is too low in power. The control module 2 controls the AC power grid to charge the battery pack 3 to ensure the normal start of the engine 11.

[0075] Once the first motor 12 is running normally, the control module 2 acquires the load current data of the generator output circuit in real time. The rectifier module 4 compares the load current data with the load current reference value. If the load current data is greater than or equal to the load current reference value, the battery pack 3 is used to supply power to the electrical equipment. If the load current data is lower than the load current reference value, it indicates that the generator's power generation is sufficient. The first motor 12 is used to supply power to the electrical equipment, or the first motor 12 and the battery pack 3 are used simultaneously to supply power to the electrical equipment, making full use of the electrical energy generated by the generator.

[0076] It should be noted that the control module 2 here is only used to control whether the power output of the battery pack 3 (or the first motor 12) is used to power the load. The size of the output circuit in the loop is controlled by the rectifier module 4. For example, the operating parameters of the rectifier module 4 in the hybrid generator set control system can be controlled by a microcontroller such as STC89, AT89, P89, ARM Cortex-M series microcontroller, or MM32 microcontroller.

[0077] Reference Figure 1 and Figure 2 The rectifier module 4 includes an AC-DC conversion module 41 and a first DC-DC conversion module 42. The input terminal of the AC-DC conversion module 41 is connected to the output terminal of the first motor 12. The AC-DC conversion module 41 is used to convert alternating current into direct current. The second output terminal of the AC-DC conversion module 41 is connected to the input terminal of the first DC-DC conversion module 42. The output terminal of the first DC-DC conversion module 42 is connected to the first input terminal of the engine power supply module 43. The second input terminal of the engine power supply module 43 is connected to the output terminal of the battery pack 3. The engine power supply module 43 is used to supply power to the engine's start / work module to drive the motor of the engine 11 to run, thereby driving the first motor 12 to generate electricity. The first DC-DC conversion module 42 is used to convert the input voltage signal into a voltage signal that meets the specifications for use with DC loads.

[0078] The engine's starting / operating module includes a battery, ignition switch, starter motor, motor, relay or electromagnetic switch, etc. In this embodiment, the engine power supply module 43 is also connected to the electronic control unit of the engine 11 to supply power to the electronic control unit of the engine 11 and to the motor of the engine 11 to drive the engine 11 to operate normally. The third output terminal of the first DC-DC conversion module 42 is connected to the battery pack 3. When the remaining power of the battery pack 3 is low, the power output of the first motor 12 can be used to charge the battery pack 3, so that the battery pack 3 can maintain sufficient power during subsequent use.

[0079] Reference Figure 1 and Figure 2 The inverter module 5 includes a bidirectional DC-DC converter module 52 and a bidirectional inverter converter module 51 connected to each other. The input terminal of the AC-DC converter module 41 is connected to the output terminal of the first motor 12, the first output terminal of the AC-DC converter module 41 is connected to the input terminal of the bidirectional DC-DC converter module 52, and the bidirectional inverter converter module 51 is bidirectionally connected to the bidirectional DC-DC converter module 52.

[0080] The bidirectional DC-DC converter module 52 can convert the input voltage signal into a voltage signal of a preset specification. Specifically, the bidirectional DC-DC converter module 52 boosts or bucks the DC power output from the first DC-DC converter module 42 and outputs it, so that the generator can supply power to DC power devices with different power specifications or to the battery pack 3. In addition, the bidirectional DC-DC converter module 52 can boost or buck the input, so that the current output by the bidirectional DC-DC converter module 52 can charge the battery pack 3.

[0081] Inverter module 5 also includes an EPS control module. EPS stands for Emergency Power Supply. The EPS control module is connected to the AC power grid and monitors the AC power grid's power supply status. Based on the AC power grid's power supply status (including whether the voltage and frequency are within normal ranges), the EPS control module determines the power supply mode for the electrical equipment: if the AC power grid output is normal, it uses the AC power grid to power the electrical equipment / battery pack; if the AC power grid output is interrupted or abnormal, it starts battery pack 3 and / or the first motor 12 to power the electrical equipment, ensuring the normal operation of the electrical equipment; when the AC power grid power supply is restored, the EPS control module quickly switches the electrical equipment back to AC power grid power supply, while simultaneously charging battery pack 3 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 to critical loads, thereby protecting the safety of critical equipment and personnel.

[0082] The system's output circuits include a first output circuit, a second output circuit, a third output circuit, a fourth output circuit, a fifth output circuit, a sixth output circuit, and a seventh output circuit;

[0083] The first output circuit includes a battery pack 3 and an engine power supply module 43 connected in sequence. It should be noted that in some examples of this embodiment, when the output voltage of the battery pack 3 is compatible with the operating voltage of the engine 11, the battery pack 3 can also be directly connected to the input terminal of the engine 11, and the battery pack 3 can directly supply power to the engine 11.

[0084] The second output circuit includes an AC power grid, a bidirectional inverter conversion module 51, a bidirectional DC-DC conversion module 52, a first DC-DC conversion module 42, and an engine power supply module 43 connected in sequence.

[0085] The third output circuit includes a first motor 12, an AC-DC conversion module 41, a first DC-DC conversion module 42, and an engine power supply module 43 connected in sequence;

[0086] The fourth output circuit is sequentially connected to the first motor 12, the AC-DC conversion module 41, and the engine power supply module 43;

[0087] The fifth output circuit includes a first motor 12, an AC-DC conversion module 41, a bidirectional DC-DC conversion module 52, and a bidirectional inverter conversion module 51 connected in sequence.

[0088] The sixth output circuit includes a first motor 12, an AC-DC conversion module 41, a first DC-DC conversion module 42, and a battery pack 3 connected in sequence.

[0089] The seventh output circuit includes an AC power grid, a bidirectional inverter conversion module 51, a bidirectional DC-DC conversion module 52, a first DC-DC conversion module 42, and a battery pack 3 connected in sequence.

[0090] The first output circuit, the second output circuit, the third output circuit, and the fourth output circuit are used to power the engine power supply module 43;

[0091] The fifth output circuit is used to output current to the outside world to charge the external AC load; the sixth and seventh output circuits are used to charge the battery pack 3; in addition, the battery pack 3 can also supply power to the AC load through the first DC-DC conversion module 42, the bidirectional DC-DC conversion module 52 and the bidirectional inverter conversion module 51 in sequence.

[0092] Normally, when the control module 2 detects the generator start signal, it starts the battery pack 3, and the generator supplies power to the engine 11 through the first output circuit to drive the engine 11 to run.

[0093] When the first motor 12 is running, it can supply power to the engine 11 and control module 2, or charge the battery pack 3 through one or more output circuits.

[0094] The hybrid generator set control system also includes an acquisition module that is communicatively connected to the control module 2. The acquisition module is used to acquire the remaining power information of the battery pack 3 and the load current data of the generator output circuit. The control module 2 determines the output circuit for powering the engine 11 based on the remaining power information of the battery pack 3 and the load current data of the generator output circuit. Before the engine starts, the power output from the battery pack 3 or the power output from the AC grid is selected to drive the engine. After the engine starts, the power output from the battery pack 3, the power output from the AC grid, and / or the power output from the first motor can be selected to power the electrical equipment.

[0095] The load current data is compared with the load current reference value. If the load current data is greater than or equal to the load current reference value, the battery pack 3 is used to supply power to the electrical equipment. If the load current data is lower than the load current reference value, it indicates that the generator's power generation is sufficient, and the first motor 12, battery pack 3 and / or AC power grid or one or more methods are used to supply power to the electrical equipment.

[0096] The power regulator 6 includes an MPPT module 61 and a third DC-DC conversion module 62. MPPT stands for Maximum Power Point Tracking, a technology that can regulate the operating state of electrical modules to ensure that the generator can output maximum power. The MPPT module 61 can be connected to an external power generation system, such as a solar photovoltaic panel or a wind power generation system, and use the electrical energy converted by the solar photovoltaic panel to power the electrical equipment. This technology detects the output voltage of the solar photovoltaic panel in real time and tracks the highest voltage and current values, so that the system can charge the battery pack 3 in a timely manner with maximum power output.

[0097] In this embodiment, the MPPT module 61 is used to receive output data from an external power generation system (e.g., an external DC power supply, solar photovoltaic panels, wind power generation system, and geothermal power generation system), and adjust the output power of the external power generation system according to the charging parameters of the battery pack 3, so that the output parameters of the external power generation system are adapted to the charging parameters of the battery pack 3. The output data is at least one of voltage data, current data, and output power. The current sensor is used to collect the output current of the battery pack 3 and / or the first motor 12, and the voltage sensor is used to collect the output voltage of the battery pack 3.

[0098] The third DC-DC conversion module 62 is used to convert voltage values, transforming the input voltage signal into a specification usable by electrical equipment to ensure stable output of the generator output circuit. In addition, the third DC-DC conversion module 62 can be connected to DC electrical appliances to directly power the appliances, enabling the generator to power electrical equipment in various forms and improving the generator's adaptability.

[0099] It should be noted that the electronic device parameters in the circuits corresponding to the DC-DC conversion module, bidirectional inverter conversion module, and AC-DC conversion module mentioned in this embodiment can be adaptively adjusted according to actual needs, as long as the function of boosting / buckling DC power and converting DC to AC / AC to DC power can be achieved. This embodiment does not impose any restrictions.

[0100] Example 2,

[0101] Reference Figure 3 The difference between Embodiment 2 and Embodiment 1 is that the input voltage of the battery pack 3 is adapted to the operating voltage of the first motor 12.

[0102] The rectifier module 4 includes an AC-DC conversion module 41 and an engine power supply module 43. The inverter module 5 includes a bidirectional DC-DC conversion module 52 and a bidirectional inverter conversion module 51 connected to each other. The input terminal of the AC-DC conversion module 41 is connected to the output terminal of the first motor 12, and the first output terminal of the AC-DC conversion module 41 is connected to the input terminal of the bidirectional inverter conversion module 51. The output terminal of the bidirectional inverter conversion module 51 is connected to the input terminal of the bidirectional DC-DC conversion module 52, and the output terminal of the bidirectional DC-DC conversion module 52 is connected to the battery pack 3.

[0103] The second output terminal of the AC-DC conversion module 41 is connected to the first input terminal of the engine power supply module 43, and the second input terminal of the engine power supply module 43 is connected to the output terminal of the battery pack 3.

[0104] The engine power supply module 43 is used to drive the motor of the engine 11; the AC-DC conversion module 41 is used to convert alternating current into direct current; the bidirectional DC-DC conversion module 52 is used to convert the input voltage signal into a voltage signal of a preset specification; and the bidirectional inverter conversion module 51 is used to convert direct current into alternating current or alternating current into direct current.

[0105] In Example 2, the system's output circuits include an eighth output circuit, a ninth output circuit, a tenth output circuit, an eleventh output circuit, a twelfth output circuit, and a thirteenth output circuit;

[0106] The eighth output circuit includes a battery pack 3 and an engine power supply module 43 connected in sequence;

[0107] The ninth output circuit includes the first motor 12, the AC-DC conversion module 41, and the engine power supply module 43 connected in sequence;

[0108] The tenth output circuit includes a first motor 12, an AC-DC conversion module 41, and a bidirectional inverter conversion module 51 connected in sequence.

[0109] The eleventh output circuit includes a first motor 12, an AC-DC conversion module 41, a bidirectional DC-DC conversion module 52, and a battery pack 3 connected in sequence.

[0110] The twelfth output circuit includes an AC power grid, a bidirectional inverter conversion module 51, a bidirectional DC-DC conversion module 52, and a battery pack 3 connected in sequence.

[0111] The thirteenth output circuit includes a battery pack 3, a bidirectional DC-DC conversion module 52, and a bidirectional inverter conversion module 51 connected in sequence.

[0112] The eighth and ninth output circuits are used to supply power to the engine power supply module 43, the eleventh and twelfth output circuits are used to charge the battery pack 3, and the tenth and thirteenth output circuits are used to supply power to the AC load.

[0113] The selection principle for the output circuit in Example 2 is the same as that in Example 1. Both are determined based on the remaining power information of the battery pack 3 and the load current data of the system output circuit. For the sake of brevity, they will not be repeated here.

[0114] The hybrid power generator control system described in this application can be installed in electronic equipment. It should be understood that the embodiments are for illustrative purposes only and are not limited to this structure in the scope of the patent application.

[0115] In the description of this specification, the references to terms such as "an embodiment," "some embodiments," "example," "specific example," "a implementation," "a preferred implementation," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0116] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A hybrid power generator set control system, characterized in that, The generator set includes an engine (11) and a first motor (12). The engine (11) drives the first motor (12) to rotate. The first motor (12) outputs alternating current when it is running. The system includes a control module (2) for controlling the start and stop of the generator, and a battery pack (3), a rectifier module (4), and an inverter module (5) that are communicatively connected to the control module (2). The engine (11), control module (2), rectifier module (4), and inverter module (5) are all connected to the battery pack (3). The rectifier module (4) is used to convert the AC power output by the first motor (12) into DC power; The inverter module (5) is used to convert the DC power output by the first motor (12) after rectification by the rectifier module (4) into AC power, or to convert the AC power input from the AC power grid into DC power.

2. The hybrid power generator set control system as described in claim 1, characterized in that, The rectifier module (4) includes an AC-DC conversion module (41), a first DC-DC conversion module (42), and an engine power supply module (43). The inverter module (5) includes a bidirectional DC-DC conversion module (52) and a bidirectional inverter conversion module (51) that are connected to each other. The input terminal of the AC-DC conversion module (41) is connected to the output terminal of the first motor (12). The first output terminal of the AC-DC conversion module (41) is connected to the input terminal of the bidirectional DC-DC conversion module (52), and the bidirectional inverter conversion module (51) and the bidirectional DC-DC conversion module (52) are bidirectionally connected. The second output terminal of the AC-DC converter module (41) is connected to the input terminal of the first DC-DC converter module (42), and the output terminal of the first DC-DC converter module (42) is connected to the first input terminal of the engine power supply module (43). The second input terminal of the engine power supply module (43) is connected to the output terminal of the battery pack (3). The engine power supply module (43) is used to supply power to the engine (11) start / work module; The first DC-DC conversion module (42) is used to convert the input voltage signal into a voltage signal that meets the specifications for use with DC loads; The AC-DC conversion module (41) is used to convert alternating current into direct current; The bidirectional DC-DC converter module (52) is used to convert the input voltage signal into a voltage signal of a preset specification; The bidirectional inverter conversion module (51) is used to convert DC to AC or AC to DC.

3. A hybrid power generator control system as described in claim 2, characterized in that, The system's output circuits include a first output circuit, a second output circuit, a third output circuit, a fourth output circuit, a fifth output circuit, a sixth output circuit, and a seventh output circuit; The first output circuit includes a battery pack (3) and an engine power supply module (43) connected in sequence; The second output circuit includes an AC power grid, a bidirectional inverter conversion module (51), a bidirectional DC-DC conversion module (52), a first DC-DC conversion module (42), and an engine power supply module (43) connected in sequence. The third output circuit includes a first motor (12), an AC-DC conversion module (41), a first DC-DC conversion module (42), and an engine power supply module (43) connected in sequence. The fourth output circuit is sequentially connected to the first motor (12), the AC-DC conversion module (41), and the engine power supply module (43); The fifth output circuit includes a first motor (12), an AC-DC conversion module (41), a bidirectional DC-DC conversion module (52), and a bidirectional inverter conversion module (51) connected in sequence. The sixth output circuit includes a first motor (12), an AC-DC conversion module (41), a first DC-DC conversion module (42), and a battery pack (3) connected in sequence; The seventh output circuit includes an AC power grid, a bidirectional inverter conversion module (51), a bidirectional DC-DC conversion module (52), a first DC-DC conversion module (42), and a battery pack (3) connected in sequence.

4. A hybrid power generator control system as described in claim 1, characterized in that, The input voltage of the battery pack (3) is compatible with the operating voltage of the first motor (12). The rectifier module (4) includes an AC-DC conversion module (41) and an engine power supply module (43), and the inverter module (5) includes a bidirectional DC-DC conversion module (52) and a bidirectional inverter conversion module (51) connected to each other. The input terminal of the AC-DC conversion module (41) is connected to the output terminal of the first motor (12). The first output terminal of the AC-DC conversion module (41) is connected to the input terminal of the bidirectional inverter conversion module (51); The output of the bidirectional inverter converter module (51) is connected to the input of the bidirectional DC-DC converter module (52), and the bidirectional DC-DC converter module (52) is connected to the battery pack (3). The second output terminal of the AC-DC conversion module (41) is connected to the first input terminal of the engine power supply module (43). The second input terminal of the engine power supply module (43) is connected to the output terminal of the battery pack (3). The engine power supply module (43) is used to drive the motor of the engine (11); The AC-DC conversion module (41) is used to convert alternating current into direct current; The bidirectional DC-DC converter module (52) is used to convert the input voltage signal into a voltage signal of a preset specification; The bidirectional inverter conversion module (51) is used to convert DC to AC or AC to DC.

5. A hybrid power generator set control system as described in claim 4, characterized in that, The system's output circuits include the eighth, ninth, tenth, eleventh, twelfth, and thirteenth output circuits; The eighth output circuit includes a battery pack (3) and an engine power supply module (43) connected in sequence; The ninth output circuit includes a first motor (12), an AC-DC conversion module (41), and an engine power supply module (43) connected in sequence; The tenth output circuit includes a first motor (12), an AC-DC conversion module (41), and a bidirectional inverter conversion module (51) connected in sequence; The eleventh output circuit includes a first motor (12), an AC-DC conversion module (41), a bidirectional DC-DC conversion module (52), and a battery pack (3) connected in sequence; The twelfth output circuit includes an AC power grid, a bidirectional inverter conversion module (51), a bidirectional DC-DC conversion module (52), and a battery pack (3) connected in sequence. The thirteenth output circuit includes a battery pack (3), a bidirectional DC-DC conversion module (52), and a bidirectional inverter conversion module (51) connected in sequence.

6. A hybrid power generator control system as described in claim 3 or 5, characterized in that, The control module (2) is used to monitor the generator start signal and start the battery pack (3) to supply power to the engine (11) when the engine start signal is detected; It also includes an acquisition module that is connected to the control module (2) for acquiring the remaining power information of the battery pack (3) and the load current data of the system output circuit.

7. A hybrid power generator control system as described in any one of claims 2 to 5, characterized in that, It also includes a power regulator (6) that is communicatively connected to the control module (2), the power regulator (6) is connected to the battery pack (3), and the input terminal of the power regulator (6) is connected to the output terminal of the external power generation system; the power regulator (6) includes an MPPT module (61) that is communicatively connected to the control module (2), the MPPT module (61) is used to adjust the output data of the external power supply, and the output data is at least one of voltage data, current data, and output power.

8. A hybrid power generator control system as described in claim 7, characterized in that, The power regulator (6) includes a third DC-DC conversion module (62) that is communicatively connected to the control module (2); The third DC-DC conversion module (62) is used for voltage conversion.

9. A hybrid power generator control system as described in claim 1, 2, 3, 4, 5, or 8, characterized in that, The control module (2) is connected to a display module, which is used to display the generator's operating information. The operating information includes the operating status information of the engine (11), the operating status information of the first motor (12), the load power consumption information connected to the generator output circuit, and the power information of the battery pack (3).

10. A hybrid power generator control system as described in claim 1, 2, 3, 4, 5, or 8, characterized in that, It also includes a button module that is communicatively connected to the control module (2). The button module is used to output a running state switching signal, and the control module (2) responds to the running state switching signal output by the button module to switch the running state of the generator.

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