Hybrid power generator set control system

Abstract

The invention 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] The present invention relates to the field of generator technology, and in particular to a hybrid power generator set control system. Background Art

[0002] Fuel generators are low-cost and have good power generation effects. They are widely used in industrial and agricultural production, national defense, science and technology, and daily life. The core components of fuel generators are engines and motors. In the prior art, engines can convert the heat energy generated by burning fuel into mechanical energy to drive motors to rotate and generate electricity. When the motors rotate, they convert mechanical energy into electrical energy to power electrical equipment.

[0003] In the prior art, fuel generators are often used as automobile braking equipment or emergency power supplies. However, fuel generators consume a lot of fuel when in use, are prone to noise, and are prone to produce harmful gases such as carbon dioxide and sulfur dioxide after fuel combustion; with the continuous upgrading of carbon emission standards, traditional fuel generators have been difficult to meet the requirements of carbon emission standards; in addition, when the generator is used indoors (for example, to power a ventilator), the generator needs to be able to meet the power demand of the equipment while also having high requirements for the decibel of noise and harmful gas emissions when the generator is working; the noise generated by the fuel generator mainly includes mechanical noise, combustion noise, exhaust noise, etc. Among them, the main components of exhaust noise include low-frequency pulsating noise caused by periodic smoke exhaust, air column resonance noise in the exhaust pipe, Helmholtz resonance noise and eddy noise of the cylinder, etc.; exhaust noise is the part with relatively large energy in the generator noise, which is much higher than the intake noise and the mechanical noise radiated by the body, and is the main component of the total engine noise, so it is necessary to improve the traditional fuel generator. Summary of the invention

[0004] In order to reduce the exhaust gas and noise generated by the generator during operation and improve the comfort of the generator when in use, a hybrid power generator set control system is provided.

[0005] In order to achieve the above-mentioned object of the present invention, the present invention provides a hybrid power generator set control system.

[0006] The present invention provides a hybrid power generator control system, the generator includes an engine and a first motor, the engine is used to drive the first motor to rotate, the first motor outputs AC power when 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, the control module, the rectifier module and the inverter module are all connected to the battery pack;

[0007] The rectifier module is used to convert the alternating current output by the first motor into direct current;

[0008] The inverter module is used to convert the direct current output by the first motor after rectification by the rectifier module into alternating current, or to convert the alternating current input by the alternating current grid into direct current.

[0009] Optionally, the control module is configured to:

[0010] When the control module detects the generator start signal, the starter battery pack supplies power to the engine. The electric energy output by the battery pack drives the generator motor to start the engine.

[0011] When the first motor is running, the rectifier module obtains the load current data of the generator output circuit in real time, and 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 is used to power the load; if the load current data is lower than the load current reference value, the first motor is used to power the load, or the battery pack and the first motor are used to power the load at the same time.

[0012] 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;

[0013] The input end of the AC-DC conversion module is connected to the output end of the first motor,

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

[0015] The second output terminal of the AC-DC conversion module is connected to the input terminal of the first DC-DC conversion module, and the output terminal of the first DC-DC conversion module is connected to the first input terminal of the engine power supply module;

[0016] The second input terminal of the engine power supply module is connected to the output terminal of the battery pack.

[0017] The engine power supply module is used to supply power to the engine starting / working module;

[0018] The first DC-DC conversion module is used to convert the input voltage signal into a voltage signal that meets the DC load usage specification;

[0019] The AC-DC conversion module is used to convert AC power into DC power;

[0020] The bidirectional DC-DC conversion module is used to convert the input voltage signal into a voltage signal of preset specifications;

[0021] The bidirectional inverter conversion module is used to convert direct current into alternating current or to convert alternating current into direct current.

[0022] Optionally, the output circuit of the system includes 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;

[0023] The first output circuit includes a battery pack and an engine power supply module connected in sequence;

[0024] 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;

[0025] 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;

[0026] The fourth output circuit includes the first motor, the AC-DC conversion module and the engine power supply module connected in sequence

[0027] 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;

[0028] 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;

[0029] The seventh output loop 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 which are connected in sequence.

[0030] Optionally, the input voltage of the battery pack is adapted to the operating voltage of the first motor.

[0031] 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 connected to each other;

[0032] The input end of the AC-DC conversion module is connected to the output end of the first motor,

[0033] The first output terminal of the AC-DC conversion module is connected to the input terminal of the bidirectional inverter conversion module;

[0034] The output end of the bidirectional inverter conversion module is connected to the input end of the bidirectional DC-DC conversion module, and the output end of the bidirectional DC-DC conversion module is connected to the battery pack.

[0035] The second output terminal of the AC-DC conversion module is connected to the first input terminal of the engine power supply module.

[0036] The second input terminal of the engine power supply module is connected to the output terminal of the battery pack.

[0037] The engine power supply module is used to drive the motor of the engine;

[0038] The AC-DC conversion module is used to convert AC power into DC power;

[0039] The bidirectional DC-DC conversion module is used to convert the input voltage signal into a voltage signal of preset specifications;

[0040] The bidirectional inverter conversion module is used to convert direct current into alternating current or to convert alternating current into direct current.

[0041] Optionally, the output circuit of the system includes 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;

[0042] The eighth output circuit includes a battery pack and an engine power supply module connected in sequence;

[0043] The ninth output circuit includes a first motor, an AC-DC conversion module and an engine power supply module connected in sequence;

[0044] The tenth output circuit includes a first motor, an AC-DC conversion module and a bidirectional inverter conversion module connected in sequence;

[0045] 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;

[0046] 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;

[0047] The thirteenth output circuit includes a battery pack, a bidirectional DC-DC conversion module, and a bidirectional inverter conversion module connected in sequence.

[0048] Optionally, the control module is used to monitor the generator start signal, and start the battery pack to power the engine when the engine start signal is detected;

[0049] It also includes an acquisition module that is communicatively connected to the control module, and the acquisition module is used to obtain 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 power 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.

[0050] Optionally, the inverter module also includes an EPS control module, which is used to monitor the power supply status of the AC power grid and determine the power supply mode of the electrical equipment according to the power supply status of the AC power grid: if the output of the AC power grid is normal, the AC power grid is used to power the electrical equipment / battery pack; if the output of the AC power grid is interrupted or an abnormality occurs, the battery pack and / or the first motor is started to power the electrical equipment.

[0051] Optionally, it also includes a power conditioner communicatively connected to the control module, the power conditioner is connected to the battery pack, and the input end of the power conditioner is connected to the output end of the external power generation system; the power conditioner includes an MPPT module communicatively connected to the control module, and 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 adapt, wherein the output data is at least one of voltage data, current data, and output power.

[0052] Optionally, the power conditioner includes a third DC-DC conversion module respectively connected to the control module for communication.

[0053] The third DC-DC conversion module is used for voltage conversion.

[0054] Optionally, the control module is communicatively connected to a display module, and the display module is used to display operating information of the generator, wherein the operating information includes operating status information of the engine, operating status information of the first motor, power consumption information of the load connected to the generator output circuit, and power information of the battery pack.

[0055] Optionally, a key module is further included which is communicatively connected to the control module, and the key module is used to issue control instructions to control the generator to switch to different operating states.

[0056] In summary, this application includes the following beneficial technical effects:

[0057] The control module monitors the signal sent by the key 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 a power source for the engine to drive the engine to rotate. After the engine runs normally, it can drive the first motor to rotate and generate electricity.

[0058] When the first motor is operating normally, the electric energy output by the first motor is used to drive the engine. If there are too many electrical devices connected to the generator, the battery pack is used to power the engine. When the electric energy output by the battery pack and the first motor is insufficient to support the normal operation of the engine, fuel is used to drive the engine to operate normally. The electric energy output by the first motor and the electric energy output by the battery pack are used to drive the engine. Electric energy 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, the electric energy output by the battery pack is used to start the motor in the engine to drive the engine, and electric energy is used to drive the load. At the same time, the engine is controlled so that it does not drive the load or drives less load, which reduces the noise of the engine and reduces the fuel consumption of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 A functional block diagram of a hybrid power generator control system provided in Embodiment 1 of the present invention;

[0060] Figure 2 A circuit diagram of a rectifier module and an inverter module in a hybrid power generator control system provided by an embodiment of the present invention;

[0061] Figure 3 A circuit diagram of a rectifier module and an inverter module in a hybrid power generator control system provided in Example 2 of the present invention;.

[0062] Figure 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 conditioner; 61. MPPT module; 62. third DC-DC conversion module.

[0063] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0064] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0065] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0066] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0067] Example 1

[0068] 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 AC power when running;

[0069] The engine 11 is provided with an electronic control unit, namely Figure 1 The ECU system in the embodiment, ECU stands for Electronic Control Unit, is capable of controlling the driving mode and speed of the engine 11. In the present embodiment, the engine 11 can be started by driving the motor of the engine 11 through fuel or by driving the motor of the engine 11 through electric energy; the first motor 12 can be a permanent magnet motor.

[0070] Reference Figure 1 The present invention provides a hybrid power generator control system, which includes a control module 2, and a battery pack 3, a rectifier module 4, an inverter module 5 and a power conditioner 6 that are communicatively connected to the control module 2; the engine 11, the control module 2, the rectifier module 4, the inverter module 5 and the power conditioner 6 are all connected to the battery pack 3; the battery pack 3 can provide a power source for the engine 11 to drive the engine 11 to rotate, and the engine 11 can drive the first motor 12 to rotate and generate electricity after normal operation; electric energy is a clean energy, does not produce harmful emissions during use, has less pollution to the environment, and is also suitable for indoor use environment; compared with using fuel to drive the engine 11, using electric energy to drive the engine 11 to operate can reduce the impact of the exhaust noise of the engine 11 on the surrounding environment, and improve the comfort of the generator when in use.

[0071] The control module 2 can control the start and stop of the generator and the operation mode of the generator. The rectifier module 4 can convert the AC power output by the first motor 12 into DC power of preset specifications, so that the generator can supply power to DC power equipment or charge the battery pack 3. The first input end of the inverter module 5 is connected to the output end of the rectifier module 4, the second input end of the inverter module 5 is connected to the output end of the battery pack 3, and the third input end of the inverter module is connected to the AC power grid; the inverter module 5 can convert the DC power output by the battery pack 3 and / or the DC power output by the first motor 12 after rectification by the rectifier module 4 into AC power of preset specifications for use by AC power equipment; the power regulator 6 can adjust the output parameters of each output circuit of the generator, optimize the power generation efficiency of the generator, and ensure that the generator can achieve maximum power output under different environmental conditions. The output parameters of the generator mainly include rated power, rated voltage, frequency, number of phases, power factor, rated current, rated speed, rated efficiency, rated frequency and rated temperature rise.

[0072] 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 use scenario and actual needs of the generator. As long as they match the output voltage (or output current) required by the DC power equipment and AC power equipment to be powered, this embodiment does not impose any restrictions.

[0073] The hybrid power generator control system further includes a display module and a key 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 modes of the engine 11 include 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;

[0074] 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, etc. The load power consumption information connected to the generator output circuit includes the load current data of the DC electrical equipment connected to the generator output circuit and the load current data of the AC electrical equipment connected to the generator output circuit, which is used to indicate the consumption of the electric energy generated by the generator by the total load connected to the output circuit.

[0075] The key module can issue control instructions to control the generator to switch to different operating states; the control module 2 switches the operating state of the generator in response to the operating state switching signal output by the key module. The key module includes a plurality of input keys. In the present embodiment, two input keys are provided, wherein one input key is used as a start / stop key and the other input key is used as a reset key; the start / stop key is used to control the start and stop of the generator, and the reset key is used to realize the reset function of the engine. When the user presses the start / stop key once, the key module sends a generator start signal; when the user presses the start / stop key again, the key module sends a shutdown signal; when the user presses the input key corresponding to the reset, the key module sends a reset signal to reset the circuit to a known initial state, thereby reducing the possibility of instability or damage to the generator system due to circuit abnormality or failure.

[0076] In a preferred implementation manner of this embodiment, the electric energy output by 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 electric energy for the electrical equipment. When the power of the battery pack 3 is too low or there are too many electrical appliances connected to the generator, the electric energy output by the AC power grid can be temporarily used to power the engine 11, so that the engine 11 can continuously drive the first motor 12 to operate to ensure the normal operation of the generator.

[0077] The control module 2 monitors the signal sent by the button module in real time. When the generator start signal is detected, the battery pack 3 is started to supply 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 to run. In the preferred implementation of the present embodiment, the control module 2 obtains the remaining power information of the battery pack 3 before starting the battery pack 3 to supply power to the engine 11. When the remaining power information of the battery pack 3 is greater than or equal to the remaining power reference value, the battery pack 3 is started to supply power to the power supply device. When the remaining power information of the battery pack 3 is less than the remaining power reference value, there is a risk of the battery pack 3 being too low in power. The control module 2 controls the AC power grid to charge the battery pack 3 to ensure the normal starting of the engine 11.

[0078] When the first motor 12 operates normally, the control module 2 obtains the load current data of the generator output circuit in real time, and 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 power the electrical equipment; if the load current data is lower than the load current reference value, it means that the power generation of the generator is sufficient, and the first motor 12 is used to power the electrical equipment, or the first motor 12 and the battery pack 3 are used to power the electrical equipment at the same time, so as to make full use of the electric energy generated by the generator.

[0079] It should be noted that the control module 2 here is only used to control whether to enable the electric energy output by the battery pack 3 (or the first motor 12) to power the load, and the size of the output circuit in the loop is controlled by the rectifier module 4; for example, a 51 single-chip microcomputer such as STC89, AT89, P89, an ARMCortex-M series microcontroller or an MM32 single-chip microcomputer can be used to control the operating parameters of the rectifier module 4 in the control system of the hybrid generator set.

[0080] 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 end of the AC-DC conversion module 41 is connected to the output end of the first motor 12. The AC-DC conversion module 41 is used to convert alternating current into direct current. The second output end of the AC-DC conversion module 41 is connected to the input end of the first DC-DC conversion module 42. The output end of the first DC-DC conversion module 42 is connected to the first input end of the engine power supply module 43; the second input end of the engine power supply module 43 is connected to the output end of the battery pack 3. The engine power supply module 43 is used to power the engine start / working module to drive the motor of the engine 11 to run and drive 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 DC load usage specifications.

[0081] The engine starting / working module includes a battery, an ignition switch, a starter, a motor, a relay or an electromagnetic switch, etc. In the present 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 supply power 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 electric energy output by the first motor 12 can be used to charge the battery pack 3, so that the battery pack 3 maintains sufficient power during subsequent use.

[0082] Reference Figure 1 and Figure 2 The inverter module 5 includes a bidirectional DC-DC conversion module 52 and a bidirectional inverter conversion module 51 which are connected to each other. The input end of the AC-DC conversion module 41 is connected to the output end of the first motor 12. The first output end of the AC-DC conversion module 41 is connected to the input end of the bidirectional DC-DC conversion module 52. The bidirectional inverter conversion module 51 is bidirectionally connected to the bidirectional DC-DC conversion module 52.

[0083] The bidirectional DC-DC conversion module 52 can convert the input voltage signal into a voltage signal of preset specifications. Specifically, the bidirectional DC-DC conversion module 52 boosts or reduces the voltage of the direct current output by the first DC-DC conversion module 42 and then outputs it, so that the generator can supply power to direct current power equipment with different power specifications or to the battery pack 3; in addition, the bidirectional DC-DC conversion module 52 can boost or reduce the voltage of the input, so that the current output by the bidirectional DC-DC conversion module 52 can charge the battery pack 3.

[0084] The inverter module 5 also includes an EPS control module. The full name of EPS is Emergency Power Supply. The EPS control module is connected to the mains power grid. The EPS control module is used to monitor the power supply status of the AC power grid and determine the power supply mode of the power-consuming equipment according to the power supply status of the AC power grid (including whether the voltage and frequency are within the normal range): if the AC power grid output is normal, the AC power grid is used to power the power-consuming equipment / battery pack; if the AC power grid output is interrupted or abnormal, the battery pack 3 and / or the first motor 12 are started to power the power-consuming equipment to ensure the normal operation of the power-consuming equipment; when the AC power grid is restored, the EPS control module will quickly switch the power-consuming equipment back to the AC power grid, and charge the battery pack 3 at the same time to ensure sufficient backup energy. The EPS control module ensures that the generator can start quickly in the event of a power failure, providing uninterrupted power supply to key loads, thereby protecting the safety of key equipment and personnel.

[0085] The output circuits of the system 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;

[0086] 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 adapted to the working voltage of the engine 11, the battery pack 3 can also be directly connected to the input end of the engine 11, and the battery pack 3 can be used to directly power the engine 11.

[0087] 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;

[0088] The third output circuit includes the first motor 12, the AC-DC conversion module 41, the first DC-DC conversion module 42 and the engine power supply module 43 connected in sequence;

[0089] The fourth output circuit includes the first motor 12, the AC-DC conversion module 41 and the engine power supply module 43 connected in sequence;

[0090] 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;

[0091] The sixth output circuit includes the first motor 12, the AC-DC conversion module 41, the first DC-DC conversion module 42 and the battery pack 3 connected in sequence;

[0092] The seventh output loop 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 which are connected in sequence.

[0093] The first output circuit, the second output circuit, the third output circuit and the fourth output circuit are used to supply power to the engine power module 43;

[0094] The fifth output circuit is used to output current to the outside to charge the external AC load; the sixth output circuit and the seventh output circuit 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.

[0095] 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;

[0096] When the first motor 12 is running, it can supply power to the engine 11 and the control module 2 or charge the battery pack 3 through one or more of the output circuits;

[0097] The hybrid power generator set control system also includes an acquisition module that is communicatively connected to the control module 2, and the acquisition module is used to obtain 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 is started, the electric energy output by the battery pack 3 or the electric energy output by the AC power grid is selected to drive the engine to run, and after the engine is started, the electric energy output by the battery pack 3, the electric energy output by the AC power grid and / or the electric energy output by the first motor can be selected to power the electrical equipment.

[0098] 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 power the electrical equipment. If the load current data is lower than the load current reference value, it means that the power generation of the generator is sufficient, and the first motor 12, the battery pack 3 and / or the AC power grid are used to power the electrical equipment.

[0099] The power conditioner 6 includes an MPPT module 61 and a third DC-DC conversion module 62. The full name of MPPT in English is Maximum Power Point Tracking. Maximum power point tracking is a technology that can adjust the working state of the electrical module 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 electric energy converted by the solar photovoltaic panel to power 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 time with maximum power output.

[0100] In this embodiment, the MPPT module 61 is used to receive output data of an external power generation system (such as an external DC power supply, a solar photovoltaic panel, a wind power generation system, and a geothermal power generation system, etc.), 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, and the output data is at least one of voltage data, current data, and output power; the output current of the battery pack 3 and / or the first motor 12 is collected by using a current sensor, and the output voltage of the battery pack 3 is collected by using a voltage sensor;

[0101] The third DC-DC conversion module 62 is used to convert the voltage value, converting the input voltage signal into a specification that can be used by electrical equipment to ensure the 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 electrical appliances, so that the generator can power the electrical equipment in a variety of forms, thereby improving the adaptability of the generator.

[0102] It should be noted that the parameters of electronic devices 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 functions of boosting / stepping down DC power and converting DC to AC / AC to DC can be achieved, this embodiment does not impose any restrictions.

[0103] Embodiment 2,

[0104] Reference Figure 3 The difference between the second embodiment and the first embodiment is that the input voltage of the battery pack 3 is adapted to the working voltage of the first motor 12.

[0105] 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 that are interconnected; the input end of the AC-DC conversion module 41 is connected to the output end of the first motor 12, and the first output end of the AC-DC conversion module 41 is connected to the input end of the bidirectional inverter conversion module 51; the output end of the bidirectional inverter conversion module 51 is connected to the input end of the bidirectional DC-DC conversion module 52, and the output end of the bidirectional DC-DC conversion module 52 is connected to the battery pack 3.

[0106] 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 .

[0107] 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 preset specifications; the bidirectional inverter conversion module 51 is used to convert direct current into alternating current or convert alternating current into direct current.

[0108] In Embodiment 2, the output circuit of the system includes 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;

[0109] The eighth output circuit includes a battery pack 3 and an engine power supply module 43 connected in sequence;

[0110] 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;

[0111] 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;

[0112] The eleventh output circuit includes the first motor 12, the AC-DC conversion module 41, the bidirectional DC-DC conversion module 52 and the battery pack 3 connected in sequence;

[0113] The twelfth output loop 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;

[0114] The thirteenth output loop includes a battery pack 3, a bidirectional DC-DC conversion module 52, and a bidirectional inverter conversion module 51 which are connected in sequence.

[0115] The eighth output circuit and the ninth output circuit are used to supply power to the engine power supply module 43 , the eleventh output circuit and the twelfth output circuit are used to charge the battery pack 3 , and the tenth output circuit and the thirteenth output circuit are used to supply power to the AC load.

[0116] The selection principle of the output circuit in Example 2 is consistent with that in Example 1, and is 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 of the specification, it will not be repeated here.

[0117] The hybrid power generator control system of the present invention can be installed in an electronic device. It should be understood that the embodiment is only for illustration and the scope of the patent application is not limited by this structure.

[0118] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", "an implementation", "a preferred implementation" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0119] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hybrid power generator control system, characterized in that: The generator set comprises an engine (11) and a first motor (12), the engine (11) being used to drive the first motor (12) to rotate, and the first motor (12) outputs alternating current when in operation, and the system comprises 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) which are communicatively connected to the control module (2); the engine (11), the control module (2), the rectifier module (4) and the inverter module (5) are all connected to the battery pack (3); The rectifier module (4) is used to convert the alternating current output by the first motor (12) into direct current; The inverter module (5) is used to convert the direct current output by the first motor (12) after rectification by the rectifier module (4) into alternating current, or to convert the alternating current input from the alternating current grid into direct current.

2. A hybrid power generator control system as claimed in claim 1, characterized in that: The control module (2) is configured as follows: When the control module (2) detects a generator start signal, the start-up battery pack (3) supplies power to the engine (11), and the electric energy output by the battery pack (3) drives the generator motor to run, thereby starting the engine (11); When the first motor (12) is running, the rectifier module (4) acquires load current data of the generator output circuit in real time, compares the load current data with a load current reference value, and if the load current data is greater than or equal to the load current reference value, uses the battery pack (3) to power the load; if the load current data is lower than the load current reference value, uses the first motor (12) to power the load or uses the battery pack (3) and the first motor (12) to power the load simultaneously.

3. A hybrid power generator control system as claimed in claim 1 or 2, characterized in that: The rectifier module (4) comprises an AC-DC conversion module (41), a first DC-DC conversion module (42) and an engine power supply module (43); the inverter module (5) comprises a bidirectional DC-DC conversion module (52) and a bidirectional inverter conversion module (51) which are connected to each other; The input end of the AC-DC conversion module (41) is connected to the output end of the first motor (12). The first output end of the AC-DC conversion module (41) is connected to the input end of the bidirectional DC-DC conversion module (52), and the bidirectional inverter conversion module (51) is bidirectionally connected to the bidirectional DC-DC conversion module (52); The second output end of the AC-DC conversion module (41) is connected to the input end of the first DC-DC conversion module (42), and the output end of the first DC-DC conversion module (42) is connected to the first input end of the engine power supply module (43). The second input end of the engine power supply module (43) is connected to the output end of the battery pack (3). The engine power supply module (43) is used to supply power to the engine (11) start / operation module; The first DC-DC conversion module (42) is used to convert the input voltage signal into a voltage signal that meets the DC load usage specification; 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; The bidirectional inverter conversion module (51) is used to convert direct current into alternating current or to convert alternating current into direct current.

4. A hybrid power generator control system as claimed in claim 3, characterized in that: The output circuit of the system includes 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 comprises 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) which are connected in sequence; The third output circuit comprises a first motor (12), an AC-DC conversion module (41), a first DC-DC conversion module (42) and an engine power supply module (43) which are connected in sequence; The fourth output circuit includes a first motor (12), an AC-DC conversion module (41) and an engine power supply module (43) connected in sequence; The fifth output circuit comprises a first motor (12), an AC-DC conversion module (41), a bidirectional DC-DC conversion module (52) and a bidirectional inverter conversion module (51) which are connected in sequence; The sixth output circuit comprises a first motor (12), an AC-DC conversion module (41), a first DC-DC conversion module (42) and a battery pack (3) which are connected in sequence; The seventh output loop comprises 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) which are connected in sequence.

5. A hybrid power generator control system as claimed in claim 1 or 2, characterized in that: The input voltage of the battery pack (3) is adapted to the working voltage of the first motor (12). The rectifier module (4) comprises an AC-DC conversion module (41) and an engine power supply module (43), and the inverter module (5) comprises a bidirectional DC-DC conversion module (52) and a bidirectional inverter conversion module (51) which are connected to each other; The input end of the AC-DC conversion module (41) is connected to the output end of the first motor (12). The first output end of the AC-DC conversion module (41) is connected to the input end of the bidirectional inverter conversion module (51); The output end of the bidirectional inverter conversion module (51) is connected to the input end of the bidirectional DC-DC conversion module (52), and the bidirectional DC-DC conversion 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 end of the engine power supply module (43) is connected to the output end 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 conversion 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 direct current into alternating current or to convert alternating current into direct current.

6. A hybrid power generator control system as claimed in claim 5, characterized in that: The output circuits of the system 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; The eighth output circuit includes a battery pack (3) and an engine power supply module (43) connected in sequence; The ninth output circuit comprises a first motor (12), an AC-DC conversion module (41) and an engine power supply module (43) which are connected in sequence; The tenth output circuit comprises a first motor (12), an AC-DC conversion module (41) and a bidirectional inverter conversion module (51) which are connected in sequence; The eleventh output circuit comprises a first motor (12), an AC-DC conversion module (41), a bidirectional DC-DC conversion module (52) and a battery pack (3) which are connected in sequence; The twelfth output loop comprises an AC power grid, a bidirectional inverter conversion module (51), a bidirectional DC-DC conversion module (52) and a battery pack (3) which are connected in sequence; The thirteenth output loop comprises a battery pack (3), a bidirectional DC-DC conversion module (52), and a bidirectional inverter conversion module (51) which are connected in sequence.

7. A hybrid power generator control system as claimed in claim 4 or 6, characterized in that: The control module (2) is used to monitor the generator start signal, and when the engine start signal is detected, the battery pack (3) is started to supply power to the engine (11); It also includes an acquisition module that is communicatively connected to the control module (2), the acquisition module being used to acquire the remaining power information of the battery pack (3) and the load current data of the system output circuit; the control module (2) 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 (3) and the load current data of the system output circuit.

8. A hybrid power generator control system according to any one of claims 3 to 7, characterized in that: The invention also comprises a power conditioner (6) which is communicatively connected to the control module (2), the power conditioner (6) being connected to the battery pack (3), and the input end of the power conditioner (6) being connected to the output end of the external power generation system; the power conditioner (6) comprises an MPPT module (61) which is communicatively connected to the control module (2), and the MPPT module (61) is used to adjust the output data of the external power source so that the output data adjusts the charging parameters of the battery pack (3) to adapt, wherein the output data is at least one of voltage data, current data, and output power.

9. A hybrid power generator control system as claimed in claim 8, characterized in that: The power conditioner (6) comprises a third DC-DC conversion module (62) respectively connected to the control module (2) for communication; The third DC-DC conversion module (62) is used for voltage conversion.

10. A hybrid power generator control system as claimed in claim 1, 3, 4, 5, 6 or 7, characterized in that: The control module (2) is communicatively connected to a display module, the display module being used to display operating information of the generator, the operating information including operating status information of the engine (11), operating status information of the first motor (12), power consumption information of a load connected to an output circuit of the generator, and power information of the battery pack (3).

11. A hybrid power generator control system as claimed in claim 1, 3, 4, 5, 6 or 7, characterized in that: It also includes a key module that is communicatively connected to the control module (2), the key module being used to output an operating state switching signal, and the control module (2) switching the operating state of the generator in response to the operating state switching signal output by the key module.

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