阅读说明：本技术 发电装置的主机系统、发电装置及发电系统 (Host system of power generation device, power generation device and power generation system ) 是由 陈健 张胜龙 张少锋 魏掌来 于 2019-11-08 设计创作，主要内容包括：本申请提供一种发电装置的主机系统、发电装置及发电系统。该主机系统包括：第一压缩机、第二压缩机、透平、电动发电机和变速箱。电动发电机具有发电机与电动机两种功能,变速箱的四个轴伸端用以与第一压缩机、第二压缩机、透平及电动发电机分别固连,在主机系统启动时,电动发电机以电动机模式工作,带动透平、第一压缩机和第二压缩机运转,当透平的输出功大于主机系统的消耗功时,电动发电机切换为发电机模式,透平带动第一压缩机、第二压缩机和电动发电机旋转,通过电动发电机和变速箱的使用,减少了主机系统中旋转设备的使用数目,从而简化了主机系统的轴系,并减少了主机系统的故障点。(The application provides a host system of a power generation device, the power generation device and a power generation system. The host system includes: the system comprises a first compressor, a second compressor, a turbine, a motor generator and a gearbox. The motor generator has two functions of a generator and a motor, four shaft extension ends of the gearbox are used for being fixedly connected with the first compressor, the second compressor, the turbine and the motor generator respectively, when the host system is started, the motor generator works in a motor mode to drive the turbine, the first compressor and the second compressor are operated, when the output power of the turbine is larger than the consumed power of the host system, the motor generator is switched into a generator mode, the turbine drives the first compressor, the second compressor and the motor generator to rotate, through the use of the motor generator and the gearbox, the use number of rotating equipment in the host system is reduced, so that a shaft system of the host system is simplified, and fault points of the host system are reduced.)

1. A host system for a power plant, comprising:

the system comprises a first compressor, a second compressor, a turbine, a motor generator and a gearbox;

the motor generator has two functions of a generator and a motor;

the gearbox comprises four shaft extension ends; four shaft extension ends of the gearbox are fixedly connected with the first compressor, the second compressor, the turbine and the motor generator respectively; the gearbox is used for changing the transmission ratio between the shaft extending ends;

when the main machine system is started, the motor generator works in a motor mode to drive the turbine, the first compressor and the second compressor to operate; when the output work of the turbine is greater than the consumed work of the host system, the motor generator is switched to a generator mode, and the turbine drives the first compressor, the second compressor and the motor generator to rotate.

2. The host system of claim 1, wherein the four shaft extensions of the gearbox are respectively attached to four gears;

the first compressor, the second compressor, the turbine and the motor generator are fixedly connected with the shaft extension end of one corresponding gear respectively.

3. The host system of claim 1, wherein four shaft-extending ends of the gearbox are fixedly connected to the first gear, the second gear, and the third gear; wherein, two shaft extension ends are fixedly connected with the first gear, and the other two shaft extension ends are respectively fixedly connected with the second gear and the third gear;

the first compressor and the second compressor are fixedly connected with two shaft extending ends on the first gear respectively; one of the transmission gear and the motor generator is fixedly connected with the shaft extension end of the second gear, and the other one of the transmission gear and the motor generator is fixedly connected with the shaft extension end of the third gear.

4. The host system of claim 1, wherein four shaft-extending ends of the gearbox are fixedly connected to the first gear, the second gear, and the third gear; wherein, two shaft extension ends are fixedly connected with the first gear, and the other two shaft extension ends are respectively fixedly connected with the second gear and the third gear;

the first compressor and the turbine are fixedly connected with two shaft extending ends on the first gear respectively; one of the second compressor and the motor generator is fixedly connected with the shaft extension end on the second gear, and the other one of the second compressor and the motor generator is fixedly connected with the shaft extension end on the third gear.

5. The host system of claim 1, wherein four shaft-extending ends of the gearbox are fixedly connected to the first gear, the second gear, and the third gear; wherein, two shaft extension ends are fixedly connected with the first gear, and the other two shaft extension ends are respectively fixedly connected with the second gear and the third gear;

the first compressor and the motor generator are fixedly connected with two shaft extending ends on the first gear respectively; one of the second compressor and the turbine is fixedly connected with the shaft extension end on the second gear, and the other one of the second compressor and the turbine is fixedly connected with the shaft extension end on the third gear.

6. The host system of claim 1, wherein four shaft-extending ends of the gearbox are fixedly connected to the first gear, the second gear, and the third gear; wherein, two shaft extension ends are fixedly connected with the first gear, and the other two shaft extension ends are respectively fixedly connected with the second gear and the third gear;

the second compressor and the turbine are fixedly connected with two shaft extending ends on the first gear respectively; one of the first compressor and the motor generator is fixedly connected with the shaft extension end on the second gear, and the other one of the first compressor and the motor generator is fixedly connected with the shaft extension end on the third gear.

7. The host system of claim 1, wherein four shaft-extending ends of the gearbox are fixedly connected to the first gear, the second gear, and the third gear; wherein, two shaft extension ends are fixedly connected with the first gear, and the other two shaft extension ends are respectively fixedly connected with the second gear and the third gear;

the second compressor and the motor generator are fixedly connected with two shaft extending ends on the first gear respectively; one of the first compressor and the turbine is fixedly connected with the shaft extension end of the second gear, and the other one of the first compressor and the turbine is fixedly connected with the shaft extension end of the third gear.

8. The host system of claim 1, wherein four shaft-extending ends of the gearbox are fixedly connected to the first gear, the second gear, and the third gear; wherein, two shaft extension ends are fixedly connected with the first gear, and the other two shaft extension ends are respectively fixedly connected with the second gear and the third gear;

the turbine and the motor generator are fixedly connected with two shaft extending ends on the first gear respectively; one of the first compressor and the second compressor is fixedly connected with the shaft extension end of the second gear, and the other compressor is fixedly connected with the shaft extension end of the third gear.

9. The host system of claim 1, wherein four shaft-extending ends of the gearbox are fixedly connected to the first gear and the second gear; two shaft extending ends are fixedly connected to the first gear, and the other two shaft extending ends are fixedly connected to the second gear;

the first compressor and the second compressor are fixedly connected with two shaft extending ends on one gear respectively; the turbine and the motor generator are fixedly connected with two shaft extending ends of the other gear respectively.

10. The host system of claim 1, wherein four shaft-extending ends of the gearbox are fixedly connected to the first gear and the second gear; two shaft extending ends are fixedly connected to the first gear, and the other two shaft extending ends are fixedly connected to the second gear;

the first compressor and the turbine are fixedly connected with two shaft extending ends on one gear respectively; the second compressor and the motor generator are fixedly connected with two shaft extending ends on the other gear respectively.

11. The host system of claim 1, wherein four shaft-extending ends of the gearbox are fixedly connected to the first gear and the second gear; two shaft extending ends are fixedly connected to the first gear, and the other two shaft extending ends are fixedly connected to the second gear;

the first compressor and the motor generator are fixedly connected with two shaft extending ends on one gear respectively; and the second compressor and the turbine are fixedly connected with two shaft extending ends on the other gear respectively.

12. The host system of any one of claims 2-11, wherein the first compressor is located on one side of the transmission and the second compressor, the turbine, and the motor-generator are located on the other side of the transmission.

13. The host system of any one of claims 2-11, wherein the first compressor and the second compressor are located on one side of the transmission, and the turbine and the motor-generator are located on the other side of the transmission.

14. An electrical power generation device, comprising: a low temperature regenerator, a high temperature regenerator, a heat source, a cooler, and the host system of any of claims 1 to 13;

the first input end of the high-temperature heat regenerator is connected with the output end of a turbine in the host system, the first output end of the high-temperature heat regenerator is connected with the first input end of the low-temperature heat regenerator, and the high-temperature heat regenerator is used for precooling working media input from the turbine and transmitting the precooled working media to the low-temperature heat regenerator;

the first output end of the low-temperature heat regenerator is connected with the input end of the cooler, the second output end of the low-temperature heat regenerator is connected with the input end of a second compressor in the host system, and the low-temperature heat regenerator is used for re-precooling the working medium flowing out of the high-temperature heat regenerator and respectively delivering the re-precooled working medium to the cooler and the second compressor;

the output end of the cooler is connected with the input end of a first compressor in the host system, and the cooler is used for cooling the working medium flowing out of the low-temperature heat regenerator and conveying the cooled working medium to the first compressor;

the second input end of the low-temperature heat regenerator is connected with the output end of a first compressor in the host system, the third output end of the low-temperature heat regenerator is connected with the second input end of the high-temperature heat regenerator, and the low-temperature heat regenerator is also used for preheating the working medium flowing out of the first compressor and conveying the preheated working medium to the high-temperature heat regenerator;

the third input end of the high-temperature heat regenerator is connected with the output end of a second compressor in the host system, the second output end of the high-temperature heat regenerator is connected with the input end of the heat source, and the high-temperature heat regenerator is also used for re-preheating the working media flowing out of the low-temperature heat regenerator and the second compressor and transmitting the re-preheated working media to the heat source;

the output end of the heat source is connected with the input end of a turbine in the host system, and the heat source is used for heating the working medium output from the high-temperature heat regenerator and transmitting the heated working medium to the turbine.

15. A power generation system, comprising: auxiliary equipment and a power plant according to claim 14.