A generator set with low fuel consumption rate

Abstract

The utility model provides a low fuel consumption generator set in the technical field of generator set, comprising: a controller; an engine, a control end connected to the controller; a generator, an input end connected to the output end of the engine, and a control end connected to the controller; a current transformer, an input end connected to the output end of the generator, and a control end connected to the controller; a rectifier, an input end connected to the output end of the generator, and a control end connected to the controller; an energy storage device, an input end connected to the output end of the rectifier, and a control end connected to the controller; an inverter, an input end connected to the output end of the energy storage device, and a control end connected to the controller; a communication module connected to the controller; an indicator light connected to the controller. The utility model has the advantages of greatly reducing the low fuel consumption rate of the generator set.

Description

Technical Field

[0001] The utility model relates to the technical field of generator sets, in particular to a generator set with low fuel consumption rate. Background Art

[0002] Generator Set is a complete set of mechanical equipment that converts other forms of energy into electrical energy. It consists of a power system, control system, silencer system, shock absorption system, exhaust system, etc. It is driven by a turbine, steam turbine, diesel engine or other power machinery. It converts the energy generated by water flow, air flow, fuel combustion or nuclear fission into mechanical energy and transmits it to the generator, which then converts it into electrical energy and outputs it to the electrical equipment for use. Generators are widely used in industrial and agricultural production, national defense, science and technology, and daily life. In recent years, with the advancement of technology, as a high-quality choice for home emergency power supply and outdoor travel power supply, lightweight and portable small generator sets have also begun to enter the daily life of residents.

[0003] Traditional generator sets transfer energy through a single link of engine → generator → load. However, due to the characteristics of the engine, the best fuel consumption rate (g / kW·h) can only be achieved when the generator set is under a load of more than 75%. Under low load conditions (less than 75%), the fuel consumption rate will increase significantly, and may even be more than twice that of the best conditions. In actual use, it is very common for generator sets to be under low load conditions for a long time, resulting in a generally high overall fuel consumption rate for the generator set.

[0004] Therefore, how to provide a generator set with low fuel consumption rate and achieve the goal of reducing the fuel consumption rate of the generator set has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a generator set with low fuel consumption rate, so as to reduce the fuel consumption rate of the generator set.

[0006] The utility model is implemented as follows: a low fuel consumption generator set, comprising:

[0007] A controller;

[0008] an engine, the control end of which is connected to the controller;

[0009] a generator, an input end of which is connected to the output end of the engine, and a control end of which is connected to the controller;

[0010] a current transformer, an input end of which is connected to the output end of the generator, and a control end of which is connected to the controller;

[0011] a rectifier, an input end of which is connected to the output end of the generator, and a control end of which is connected to the controller;

[0012] an energy storage device, the input end of which is connected to the output end of the rectifier, and the control end of which is connected to the controller;

[0013] an inverter, an input end of which is connected to the output end of the energy storage device, and a control end of which is connected to the controller;

[0014] A communication module connected to the controller; the communication module is at least one of a 2G communication module, a 3G communication module, a 4G communication module, a 5G communication module, a NB-IOT communication module, a LORA communication module, a WIFI communication module, a Bluetooth communication module, a ZigBee communication module or a wired communication module;

[0015] An indicator light is connected with the controller.

[0016] Furthermore, the controller is a PLC.

[0017] Furthermore, the energy storage device is a lithium battery pack.

[0018] Furthermore, the indicator light is a three-color indicator light.

[0019] Furthermore, it also includes:

[0020] A server is connected to the communication module.

[0021] The advantages of the utility model are:

[0022] The output end of the generator is respectively connected to the current transformer and the rectifier, the input end of the energy storage device is connected to the rectifier, the output end is connected to the inverter, and the controller is respectively connected to the generator, the generator, the current transformer, the rectifier, the energy storage device and the inverter; when the generator supplies power to the first load through the current transformer, the controller collects the output power in real time through the current transformer, and maintains the current working state when the output power is ≥75% of the load condition; when the output power is less than 75% of the load condition, the rectifier is controlled to charge the energy storage device to keep the output power at 75% of the load condition, that is, the generator set is always in the best load condition, thereby greatly reducing the low fuel consumption rate of the generator set. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0024] Figure 1 The utility model discloses a circuit principle block diagram of a generator set with low fuel consumption rate.

[0025] Marking Description:

[0026] 100-a generator set with low fuel consumption rate, 1-controller, 2-engine, 3-generator, 4-current transformer, 5-rectifier, 6-energy storage device, 7-inverter, 8-communication module, 9-indicator light, 10-server, 11-first load, 12-second load. DETAILED DESCRIPTION

[0027] The embodiment of the utility model provides a generator set 100 with low fuel consumption rate, thereby solving the technical problem in the prior art that the generator set transmits energy through a single link of engine → generator → load, and the fuel consumption rate will greatly increase when the generator set is in a low-load condition, thereby achieving the technical effect of greatly reducing the low fuel consumption rate of the generator set.

[0028] The technical solution in the embodiment of the utility model is to solve the above problems, and the overall idea is as follows: two power output paths are set, and the output power is collected in real time through the current transformer 4. When the output power is less than 75% of the load condition, the rectifier 5 is controlled to charge the energy storage device 6 to make the output power ≥75% of the load condition, so as to reduce the low fuel consumption rate of the generator set 100.

[0029] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] Please refer to Figure 1 As shown, a preferred embodiment of a low fuel consumption generator set 100 of the utility model comprises:

[0031] A controller 1, used to control the operation of the generator set 100;

[0032] an engine 2, the control end of which is connected to the controller 1, for converting other forms of energy into mechanical energy;

[0033] a generator 3, whose input end is connected to the output end of the engine 2 and whose control end is connected to the controller 1, for converting mechanical energy into electrical energy;

[0034] a current transformer 4, whose input end is connected to the output end of the generator 3 and whose control end is connected to the controller 1, for monitoring power changes at the load end;

[0035] a rectifier 5, whose input end is connected to the output end of the generator 3 and whose control end is connected to the controller 1, and is used for converting and storing the excess power of the generator 3 into the energy storage device 6;

[0036] an energy storage device 6, whose input end is connected to the output end of the rectifier 5 and whose control end is connected to the controller 1, for storing electric energy;

[0037] an inverter 7, whose input end is connected to the output end of the energy storage device 6 and whose control end is connected to the controller 1, and is used for inverting the electric energy stored in the energy storage device 6 into alternating current for external power supply;

[0038] A communication module 8 connected to the controller 1; the communication module 8 is at least one of a 2G communication module, a 3G communication module, a 4G communication module, a 5G communication module, a NB-IOT communication module, a LORA communication module, a WI FI communication module, a Bluetooth communication module, a ZigBee communication module or a wired communication module, and is used to remotely control the generator set 100;

[0039] An indicator light 9 is connected to the controller 1 and is used to indicate the working status of the generator set 100 .

[0040] The controller 1 is a PLC, which is used to control the operation of the generator set 100. In specific implementation, it is sufficient to select a PLC that can realize this function from the prior art. It is not limited to any model, and the control program is well known to those skilled in the art, which can be obtained by those skilled in the art without creative work.

[0041] The energy storage device 6 is a lithium battery pack.

[0042] The indicator light 9 is a three-color indicator light, which is used to indicate different working states.

[0043] Also includes:

[0044] A server 10 is connected to the communication module 8 and is used to remotely control the generator set 100 and store the operating data uploaded by the generator set 100 .

[0045] Working principle of this utility model:

[0046] The controller 1 starts the engine 2 and the generator 3 to supply power to the first load 11. During the power supply process, the controller 1 collects the output power of the generator 3 in real time through the current transformer 4. When the output power is ≥75% of the load condition, the current working state is maintained; when the output power is less than 75% of the load condition, the controller 1 controls the rectifier 5 to convert and store the excess power of the generator 3 into the energy storage device 6; when it is necessary to supply power to the second load 12, the controller 1 controls the inverter 7 to invert the electric energy stored in the energy storage device 6 into alternating current, and supplies power to the second load 12.

[0047] In summary, the advantages of the present invention are:

[0048] The output end of the generator is respectively connected to the current transformer and the rectifier, the input end of the energy storage device is connected to the rectifier, the output end is connected to the inverter, and the controller is respectively connected to the generator, the generator, the current transformer, the rectifier, the energy storage device and the inverter; when the generator supplies power to the first load through the current transformer, the controller collects the output power in real time through the current transformer, and maintains the current working state when the output power is ≥75% of the load condition; when the output power is less than 75% of the load condition, the rectifier is controlled to charge the energy storage device to keep the output power at 75% of the load condition, that is, the generator set is always in the best load condition, thereby greatly reducing the low fuel consumption rate of the generator set.

[0049] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A low fuel consumption generator set, characterized by: include: A controller; an engine, the control end of which is connected to the controller; a generator, an input end of which is connected to the output end of the engine, and a control end of which is connected to the controller; a current transformer, an input end of which is connected to the output end of the generator, and a control end of which is connected to the controller; a rectifier, an input end of which is connected to the output end of the generator, and a control end of which is connected to the controller; an energy storage device, the input end of which is connected to the output end of the rectifier, and the control end of which is connected to the controller; an inverter, an input end of which is connected to the output end of the energy storage device, and a control end of which is connected to the controller; A communication module connected to the controller; the communication module is at least one of a 2G communication module, a 3G communication module, a 4G communication module, a 5G communication module, a NB-IOT communication module, a LORA communication module, a WIFI communication module, a Bluetooth communication module, a ZigBee communication module or a wired communication module; An indicator light is connected to the controller.

2. A low fuel consumption generator set as claimed in claim 1, characterized in that: The controller is a PLC.

3. A low fuel consumption generator set as claimed in claim 1, characterized in that: The energy storage device is a lithium battery pack.

4. A low fuel consumption generator set as claimed in claim 1, characterized in that: The indicator light is a three-color indicator light.

5. A low fuel consumption generator set as claimed in claim 1, characterized in that: Also includes: A server is connected to the communication module.

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