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Heavy Duty Gas Turbine with Variable Speed ​​Synchronous Motor Driven Compressor

A technology of synchronous motors and gas turbines, applied in gas turbine devices, machines/engines, mechanical equipment, etc., can solve the problem of non-adjustable turbine compressor speed, and achieve the effects of reduced power generation, high single-cycle efficiency, and increased electric power

Active Publication Date: 2022-05-13
章礼道
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] a. The turbine compressor and the gas turbine are coaxial and at the same speed. After the generator is connected to the grid, the speed of the turbine compressor cannot be adjusted;

Method used

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  • Heavy Duty Gas Turbine with Variable Speed ​​Synchronous Motor Driven Compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Combine now figure 1 Taking a heavy-duty gas turbine (120Hz scheme) driven by a variable-speed synchronous motor (120Hz scheme) as an example to illustrate the optimal way to realize the present invention by taking a H-level (only referring to its gas turbine inlet temperature and maximum exhaust gas mass flow rate similar to that of the prior art H-level) variable speed synchronous motor .

[0044] The heavy-duty gas turbine of the variable speed synchronous motor driven compressor of the present invention comprises a compressor (1), a variable speed synchronous motor (2), a static excitation device (3), a variable frequency power supply (4), a combustion chamber (5), a gas turbine (6), The generator (7); the input terminal of the variable frequency power supply (4) is connected to a 3-phase 10kV, 50Hz factory busbar, and outputs a 3-phase 1Hz to 120Hz AC with a good waveform, and the output voltage increases with the increase of the output frequency. When the output ...

Embodiment 2

[0050] Combine now figure 1 Taking a heavy-duty gas turbine (60Hz scheme) driven by a variable-speed synchronous motor (60Hz scheme) of an H-level (only referring to its gas turbine inlet temperature and maximum exhaust gas mass flow rate being similar to the prior art H-level) as an example, the preferred way to realize the present invention is illustrated. .

[0051] The heavy-duty gas turbine of the variable speed synchronous motor driven compressor of the present invention comprises a compressor (1), a variable speed synchronous motor (2), a static excitation device (3), a variable frequency power supply (4), a combustion chamber (5), a gas turbine (6), The generator (7); the input terminal of the variable frequency power supply (4) is connected to a 3-phase 10kV, 50Hz factory busbar, and outputs a 3-phase 1Hz to 60Hz alternating current with a good waveform, and the output voltage increases with the increase of the output frequency. When it reaches 60Hz, the output volta...

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PUM

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Abstract

The heavy-duty gas turbine driven by a variable-speed synchronous motor compressor of the present invention relates to a large-capacity high-efficiency energy-saving, low-carbon emission, good controllability, flexible operation, fast start-stop, and strong primary frequency modulation capability. Heavy-duty gas turbines used in power stations; the present invention includes compressors, variable-speed synchronous motors, static excitation devices, variable frequency power supplies, combustion chambers, gas turbines, and generators; the turbine compressors are driven by variable-speed synchronous motors. Intermediate load, high load, variable speed and compression ratio adjustment throughout the process, the turbine compressor operates under high efficiency conditions throughout the process; the shaft power generated by the gas turbine is fully converted into electrical energy through the corresponding generator.

Description

(1) Technical field: [0001] The heavy-duty gas turbine driven by a variable-speed synchronous motor compressor of the present invention relates to a large-capacity high-efficiency energy-saving, low-carbon emission, good controllability, flexible operation, fast start-stop, and strong primary frequency modulation capability. Heavy-duty gas turbines used in power stations. (two) background technology: [0002] Since the 1990s, with the mature development of gas-steam combined cycle, the overall thermal efficiency of combined cycle units has been greatly improved, and heavy-duty gas turbines for power stations have become an important part of power generation equipment in power grids. [0003] According to the height of the combustion temperature and the power of the unit during operation, the heavy-duty gas turbines used in power stations in the prior art are divided into eight levels: A-B-C-D-E-F-G-H. The higher the intake temperature of the gas turbine, the greater the pow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02C6/00F02C3/00F04D25/08
CPCF02C3/00F02C6/00F04D25/06F04D25/08
Inventor 章礼道
Owner 章礼道