CN-122014406-A - DC power generation system and working method thereof

Abstract

The invention belongs to the technical field of power generation, in particular to a direct current power generation system and a working method thereof, wherein the direct current power generation system acquires the power of a power generation part in real time through a control module, when the power is changed, the pressurizing part is controlled to pressurize a power part cooling loop, and a communicating part is controlled to communicate the power part cooling loop and the power generation part cooling loop, so that high-pressure gas in the power part cooling loop enters the power generation part cooling loop, the gas pressure in the power generation part cooling loop is improved, the boiling point of cooling liquid in the power generation part cooling loop is improved, the cooling requirements of the power generation part and the power part are met at the same time, and when the power of the power generation part is changed, the air pressure in a cooling pipeline of the power generation part is increased, so that the boiling point of the cooling liquid is increased, and cavitation caused by local temperature rising cooling liquid boiling due to local electric vortex generated by power change is avoided.

Inventors

• YA XIYA

Assignees

• 雅柯斯电力科技（中国）有限公司

Dates

Publication Date

20260512

Application Date

20260412

Claims (10)

1. 1. A direct current power generation system, comprising: the control module is electrically connected with the power part, the power generation part, the communication part and the pressurizing part; The power part is connected with the power generation part and is configured to drive the power generation part to generate power; The power part is provided with a corresponding power part cooling loop, the power generation part is provided with a corresponding power generation part cooling loop, and the power part cooling loop is connected with the power generation part cooling loop through a communication part; The pressurizing part is respectively connected with the power part cooling circuit and the power generation part cooling circuit; The control module is configured to acquire the power of the power generation part in real time, control the pressurizing part to pressurize the power part cooling circuit when the power is changed, and control the communicating part to communicate the power part cooling circuit with the power generation part cooling circuit so that high-pressure gas in the power part cooling circuit enters the power generation part cooling circuit, and improve the gas pressure in the power generation part cooling circuit so as to improve the boiling point of cooling liquid in the power generation part cooling circuit.
2. 2. The direct current power generation system according to claim 1, wherein: the power section cooling circuit includes a power section cooling duct provided at an engine in a power section; The liquid inlet and the liquid outlet of the power part cooling pipeline are connected with the water tank through a first one-way valve, and a first water pump electrically connected with the control module is arranged between the water tank and the liquid inlet of the power part cooling pipeline; The control module is configured to control the first water pump to pump the cooling liquid in the water tank into the power part cooling pipeline through the first one-way valve, and then the cooling liquid flowing out of the liquid outlet of the power part cooling pipeline flows into the water tank through the first one-way valve to form a power part cooling loop.
3. 3. The direct current power generation system according to claim 2, wherein: the power generation section cooling circuit includes a power generation section cooling pipe provided at a power generator in a power generation section; The cooling pipeline of the power generation part is a flat pipe and is clung to the side surface of the flat wire coil of the power generator; The liquid inlet and the liquid outlet of the cooling pipeline of the power generation part are connected with the water tank through the decompression one-way valve assembly, and a second water pump electrically connected with the control module is arranged between the water tank and the liquid inlet of the cooling pipeline of the power generation part; the control module is configured to control the second water pump to pump the cooling liquid in the water tank into the cooling pipeline of the power generation part through the pressure reducing one-way valve assembly, and then the cooling liquid flowing out of the liquid outlet of the cooling pipeline of the power generation part flows into the water tank through the pressure reducing one-way valve assembly to form a cooling loop of the power generation part.
4. 4.A direct current power generation system according to claim 3, wherein: The water tank is connected with the radiator, and when the cooling liquid flows into the water tank, the cooling liquid is radiated through the radiator.
5. 5. A direct current power generation system according to claim 3, wherein: the communication part comprises a second one-way valve electrically connected with the control module; The second one-way valve is connected with the power part cooling pipeline and the power generation part cooling pipeline through pipelines; The control module is configured to control the second one-way valve to open so that high-pressure gas in the power part cooling pipeline enters the power generation part cooling pipeline, and the air pressure in the power generation part cooling pipeline is increased, so that the boiling point of cooling liquid in the power generation part cooling pipeline is increased.
6. 6. The direct current power generation system according to claim 5, wherein: The pressurizing part comprises a pressurizing pump electrically connected with the control module; the pressure pump is connected with the pressure tank, the pressure tank is connected with the power part cooling pipeline, and the pressure pump is connected with the power generation part cooling pipeline; The control module is configured to control the pressurizing pump to work so as to inject high-pressure gas into the pressure tank, the high-pressure gas enters the pressure tank for storage, the high-pressure gas in the pressure tank enters the power part cooling pipeline, and the air pressure in the power part cooling pipeline is increased.
7. 7. The direct current power generation system according to claim 1, wherein: the control module is electrically connected with the detection module, and the detection module is electrically connected with the power generation part so as to acquire the power of the power generation part in real time through the detection module.
8. 8. The direct current power generation system according to claim 6, wherein: The control module is configured to control the second one-way valve to be closed when the power of the power generation part is stable, the air pressure in the cooling pipeline of the power generation part is maintained at a second preset air pressure, and the high-pressure air in the pressure tank enters the cooling pipeline of the power part so as to enable the air pressure in the cooling pipeline of the power part to be increased and maintained at a first preset air pressure; wherein the first preset air pressure is greater than the second preset air pressure.
9. 9. The direct current power generation system according to claim 6, wherein: the control module is configured to control the second one-way valve to be opened when the power of the power generation part changes, high-pressure gas in the cooling pipeline of the power part enters the cooling pipeline of the power generation part, the air pressure in the cooling pipeline of the power generation part is increased, the boiling point of cooling liquid in the cooling pipeline of the power generation part is increased, and meanwhile, the pressure tank continuously supplies pressure to the cooling pipeline of the power part.
10. 10. A method of operation employing a dc power generation system as claimed in any one of claims 1 to 9, comprising: The power of the power generation part is obtained in real time through the control module, the pressurizing part is controlled to pressurize the power part cooling loop when the power is changed, and the communicating part is controlled to communicate the power part cooling loop with the power generation part cooling loop, so that high-pressure gas in the power part cooling loop enters the power generation part cooling loop, the gas pressure in the power generation part cooling loop is improved, and the boiling point of cooling liquid in the power generation part cooling loop is improved.

Description

DC power generation system and working method thereof Technical Field The invention belongs to the technical field of power generation, in particular to a power supply device for increasing range of an automobile, and particularly relates to a direct current power generation system and a working method thereof. Background In a miniaturized power generation system, for example, a range-extending system of 800V, a cooling system of a power generation side and a cooling system of a power side are shared, if a low-boiling-point high-specific-heat-capacity cooling liquid is selected, deionized water is generally selected, a cooling flat tube is closely attached to the side face of a flat wire coil of a power generator, at the moment, when power change adjustment occurs to the power generator, short-time mutation is generated on voltage, local eddy current is easily generated on the cooling flat tube due to the fact that the voltage is easy to cause the cooling flat tube, temperature in a local area is suddenly increased, cavitation is caused by local liquid flash evaporation, and accordingly service life of the flat tube is affected, heat of the power generation side and the power side cannot be effectively taken away due to low specific heat capacity of a high-boiling-point cooling liquid, the cooling flat wire coil is particularly obvious in the miniaturized power generation system, meanwhile, fluidity of the high-boiling-point cooling liquid is poor due to the fact that the low-boiling-point cooling liquid is further affected by a heat dissipation system. Therefore, due to the technical problem that the cooling system shared by the power generation side and the power side in the miniaturized power generation system cannot meet the cooling requirements of the power generation side and the power side at the same time, a new direct current power generation system and a working method thereof are needed to be designed. It should be noted that the above information disclosed in this background section is only for understanding the background of the inventive concept and therefore the above description is not to be construed as constituting prior art information. Disclosure of Invention The embodiment of the disclosure at least provides a direct current power generation system and a working method thereof. In a first aspect, embodiments of the present disclosure provide a direct current power generation system, comprising: the control module is electrically connected with the power part, the power generation part, the communication part and the pressurizing part; The power part is connected with the power generation part and is configured to drive the power generation part to generate power; The power part is provided with a corresponding power part cooling loop, the power generation part is provided with a corresponding power generation part cooling loop, and the power part cooling loop is connected with the power generation part cooling loop through a communication part; The pressurizing part is respectively connected with the power part cooling circuit and the power generation part cooling circuit; The control module is configured to acquire the power of the power generation part in real time, control the pressurizing part to pressurize the power part cooling circuit when the power is changed, and control the communicating part to communicate the power part cooling circuit with the power generation part cooling circuit so that high-pressure gas in the power part cooling circuit enters the power generation part cooling circuit, and improve the gas pressure in the power generation part cooling circuit so that the boiling point of cooling liquid in the power generation part cooling circuit is improved. In an alternative embodiment, the power section cooling circuit includes a power section cooling duct disposed in the power section at the engine; The liquid inlet and the liquid outlet of the power part cooling pipeline are connected with the water tank through a first one-way valve, and a first water pump electrically connected with the control module is arranged between the water tank and the liquid inlet of the power part cooling pipeline; The control module is configured to control the first water pump to pump the cooling liquid in the water tank into the power part cooling pipeline through the first one-way valve, and then the cooling liquid flowing out of the liquid outlet of the power part cooling pipeline flows into the water tank through the first one-way valve to form a power part cooling loop. In an alternative embodiment, the power generation section cooling circuit includes a power generation section cooling duct provided at a power generator in a power generation section; The cooling pipeline of the power generation part is a flat pipe and is clung to the side surface of the flat wire coil of the power generator; The liquid inlet and the liquid outlet of the cooling pipeline of the power generation par