WO2019200975A1 - Heavy-duty gas turbine having variable-speed synchronous motor driven compressor - Google Patents

Heavy-duty gas turbine having variable-speed synchronous motor driven compressor Download PDF

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Publication number
WO2019200975A1
WO2019200975A1 PCT/CN2019/000071 CN2019000071W WO2019200975A1 WO 2019200975 A1 WO2019200975 A1 WO 2019200975A1 CN 2019000071 W CN2019000071 W CN 2019000071W WO 2019200975 A1 WO2019200975 A1 WO 2019200975A1
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Prior art keywords
gas turbine
synchronous motor
compressor
speed synchronous
variable
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PCT/CN2019/000071
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French (fr)
Chinese (zh)
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章礼道
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章礼道
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Publication of WO2019200975A1 publication Critical patent/WO2019200975A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation

Definitions

  • the heavy-duty gas turbine driving the compressor of the variable speed synchronous motor of the invention relates to a large-capacity high, medium and low load range, 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 heavy-duty gas turbines of the prior art power stations are divided into eight levels of A-B-C-D-E-F-G-H.
  • H-class gas turbines The most advanced state-of-the-art power plant heavy-duty gas turbines that have been put into commercial operation are H-class gas turbines; the world-owned H-class gas turbines designed and manufactured by different manufacturers have the following common technical features:
  • turbo compressor and the gas turbine are coaxial and rotate at the same speed. After the generator is connected to the grid, the turbine compressor speed is not adjustable;
  • the number of stages of the turbo compressor is in the order of 13 to 17;
  • the compression ratio is distributed between 19.2 and 23;
  • the air flow adjustment range is roughly 50% to 100%.
  • the prior art gas turbine usually comprises a gas-steam combined cycle system with a waste heat boiler and a steam turbine; the steam turbine is reheated or no longer hot, has no regenerative extraction port, and has a medium and low pressure supplemental steam inlet; the steam turbine is equipped with necessary Auxiliary machines, such as condensate pumps, circulating water pumps, condensers, vacuum pumps, cooling towers, lubricating oil systems, control oil systems, bypass systems, etc.; the waste heat boilers are usually designed to be double or triple pressure, respectively providing different pressures.
  • Superheated steam each pressure has its own economizer, evaporator, steam drum, superheater; usually gas turbine driven generators generate about 2/3 of the gas-steam combined cycle unit; steam turbine driven power generation The machine generates about 1/3 of the gas-steam combined cycle unit.
  • the prior art also utilizes a cluster of prior art heavy duty gas turbines and a pressurized water reactor steam turbine to form a combined cycle to achieve higher thermal efficiency.
  • the prior art heavy-duty gas turbine turbocharger for power station is coaxial with the gas turbine, and the same speed, after the generator is connected to the grid, the turbine compressor speed is not adjustable; relying on the configured 1 level adjustable inlet guide vane and 3 Level adjustable vane, air flow from 100% load, down to 50% load, compressor efficiency has dropped significantly, and then continue to reduce load, compressor efficiency will drop sharply, and there is the possibility of falling into surge;
  • Heavy-duty gas turbines for power stations are usually used for peak shaving to compensate for the anti-peaking characteristics of new energy sources such as wind power and photovoltaics.
  • the heavy-duty gas turbines of the prior art have a sharp increase in heat consumption under low load. Under load, the working efficiency of the compressor is not even 40%.
  • the peaking characteristics of the prior art heavy-duty gas turbines for power stations are not ideal, even worse than the coal-fired units of the prior art.
  • the heavy-duty gas turbine of the variable speed synchronous motor driving compressor of the invention adopts a completely different technical route from the prior art, and changes the "coaxial compressor and gas turbine coaxial, the same speed, after the generator is connected to the grid, the turbine compressor speed It is not adjustable;"The design, the turbo compressor is driven by the variable speed synchronous motor, starting from the start, with low load, intermediate load, high load, full speed change, the turbo compressor is running in high efficiency conditions; The shaft power generated by the gas turbine is fully converted to electrical energy via the respective generators.
  • the heavy-duty gas turbine for driving the compressor of the variable speed synchronous motor of the 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), Generator (7); variable frequency power supply (4) input terminal 3 phase 10kV, 50Hz factory high voltage bus, output 3 phase 1Hz to 120Hz / 3 phase 1Hz to 60Hz waveform good AC, output voltage increases with output frequency And rise, when the output frequency reaches 120Hz/60Hz, the output voltage reaches 10kV; the variable speed synchronous motor (2) is equipped with static excitation device (3); the variable speed synchronous motor (2) is driven by the variable frequency power supply (4), the rotation speed is 60rpm It is steplessly adjustable from 7200rpm/60rpm to 3600rpm; the variable speed synchronous motor (2) and the compressor (1) are directly connected to the opposite wheel, and the output shaft power is high enough to compress the rated air volume to the rated compression ratio at the maximum speed, and stay The necessary margin
  • Variable speed synchronous motor driven compressor the speed is steplessly adjustable in the range of 0 to 100%, and the compressor can maintain high efficiency operation in the whole high, medium and low load range, and no surge occurs;
  • variable speed synchronous motor driven compressor can precisely adjust the mass flow rate and compression ratio of the air required under different meteorological conditions of the gas turbine;
  • variable speed synchronous motor driven compressor can be composed entirely of turbine stages; it can also be composed of a mixture of turbine stage and centrifugal stage;
  • the maximum speed of the compressor driven by the variable speed synchronous motor can be the same as the speed of the gas turbine, so as to make full use of the mature product line of the conventional synchronous motor of the prior art;
  • the maximum speed of the compressor driven by the variable speed synchronous motor can also be double or higher than that of the gas turbine.
  • the volume, weight, number of stages, and manufacturing cost of the compressor with the same compression ratio and the same mass flow rate will be significantly reduced;
  • the maximum electric power output of the heavy-duty gas turbine shaft will be multiplied, and the heat generation heat consumption of the gas turbine-steam turbine combined cycle is significantly reduced;
  • the output power of the heavy-duty gas turbine shaft will be multiplied, and the heat consumption of the gas turbine-steam turbine combined cycle and low load is significantly reduced, and the power consumption of the power supply under high load is also reduced.
  • the heavy-duty gas turbine that drives the compressor by the variable speed synchronous motor of the present invention can design and manufacture a heavy-duty gas turbine whose output power of the gas turbine shaft reaches 1000MW or higher;
  • the same type of heavy-duty gas turbine can easily match the atmospheric pressure of different installation sites and the atmosphere of different seasons by finely adjusting the air pressure, mass flow rate and fuel quantity of the compressor outlet. Temperature, achieving excellent technical and economic indicators;
  • the heavy-duty gas turbine that drives the compressor according to the variable speed synchronous motor of the present invention can safely, smoothly and quickly start and stop the heavy gas turbine by finely adjusting the air pressure, mass flow and fuel amount at the outlet of the compressor;
  • the peak load response range of the heavy gas turbine can be expanded by finely adjusting the air pressure, mass flow rate and fuel amount of the compressor outlet, and the exhaust gas temperature of the heavy gas turbine is maintained at the target. Value, fluctuating only within a small required range;
  • the starting current of the variable speed synchronous motor driving the compressor does not exceed the rated current of the variable speed synchronous motor
  • the combustion chamber has a large arrangement space, and it is easy to realize low-nitrogen combustion measures such as staged air supply, flue gas recirculation, water spray, etc., and the NOx production amount is greatly reduced;
  • the heat recovery arrangement between the gas-steam combined cycle is easily realized, and the heat consumption of the gas-steam combined cycle is significantly reduced;
  • the compressor is far from the surge critical line in the starting condition and the low load working condition, the possibility of occurrence of surge is greatly reduced, and there is no need to set the row in the middle stage of the compressor. Stomata to prevent surge, safe operation and economical efficiency;
  • the heavy-duty gas turbine driven by the variable speed synchronous motor of the present invention is particularly suitable for a combined cycle with a pressurized water reactor steam turbine to achieve a higher combined cycle thermal efficiency with a higher combustion chamber combustion temperature and gas turbine exhaust gas temperature.
  • FIG. 1 is a diagram of a heavy-duty gas turbine system in which a variable speed synchronous motor drives a compressor.
  • variable-speed synchronous motor-driven compressor heavy-duty gas turbine 120Hz scheme
  • 120Hz scheme variable-speed synchronous motor-driven compressor heavy-duty gas turbine
  • the heavy-duty gas turbine for driving the compressor of the variable speed synchronous motor of the 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), Generator (7); variable frequency power supply (4) input terminal 3 phase 10kV, 50Hz factory bus, output 3 phase 1Hz to 120Hz waveform good AC, output voltage increases with the output frequency, at the output frequency When the frequency reaches 120Hz, the output voltage reaches 10kV; the variable speed synchronous motor (2) is equipped with static excitation device (3); the variable speed synchronous motor (2) is driven by the variable frequency power supply (4), and the rotation speed is steplessly adjustable from 60rpm to 7200rpm; The motor (2) and the compressor (1) are directly connected to the opposite wheel, and the output shaft power is 720 MW at the maximum speed; the suction port of the compressor (1) sucks air through the filter assembly cluster, and the outlet of the compressor (1) is piped and burned.
  • the air inlet of the chamber (5) is connected; the high temperature flue gas outlet of the combustion chamber (5) is connected to the gas turbine (6) through the high temperature flue; the gas turbine exhaust gas at the outlet of the gas turbine (6) is sent to the flue gas inlet of the waste heat boiler;
  • the output shaft of the gas turbine (6) is directly connected to the generator (7) via the opposite wheel; the generator (7)
  • the highest output power is 1200MW.
  • the variable frequency power supply (4) is a series high voltage variable frequency power supply of power module, inputting 3 phase 10kV power frequency, output 3 phase 1Hz to 120Hz, 0.08kV-10kV AC, overload factor 1.5; with start mode and energy saving mode; Start mode, including 0 speed start and rotation start with vector control characteristics; energy saving mode with VVVF characteristics; variable frequency power supply (4) main control board and static excitation device (3) main control board communicate with each other to ensure speed synchronization
  • the motor (2) does not lose its step while maintaining high efficiency and high power factor; the phase shifting transformer and power electronic components of the variable frequency power supply (4) are water-cooled and the protection grade is IP67.
  • Variable speed synchronous motor (2) input 1Hz-120Hz, 0.08kV-10kV; speed 60rpm-7200rpm; static excitation, F-class insulation, water hydrogen hydrogen cooling, hydrogen pressure 0.4MPa, protection grade IP67; sliding bearing, forced lubrication.
  • the static excitation device (3) is coordinated by the variable frequency power supply (4) to meet the excitation requirements of the variable speed synchronous motor (2) under various operating conditions of the startup mode, the energy saving mode and the fault shutdown; the static excitation device (3) has its own demagnetization circuit. .
  • the compressor (1) uses a full turbine stage, 7 stages; at the suction temperature of 20 ° C, the highest compression ratio of 21, sliding bearings, forced lubrication.
  • the heavy-duty gas turbine driving the compressor of the variable speed synchronous motor of the 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), Generator (7); variable frequency power supply (4) input terminal 3 phase 10kV, 50Hz factory bus, output 3 phase 1Hz to 60Hz waveform good AC, output voltage increases with the output frequency, at the output frequency When the frequency reaches 60Hz, the output voltage reaches 10kV; the variable speed synchronous motor (2) is equipped with static excitation device (3); the variable speed synchronous motor (2) is driven by the variable frequency power supply (4), and the rotation speed is steplessly adjustable from 60rpm to 3600rpm; The motor (2) and the compressor (1) are directly connected to the opposite wheel, and the output shaft power is 720 MW at the maximum speed; the suction port of the compressor (1) sucks air through the filter assembly cluster, and the outlet of the compressor (1) is piped and burned.
  • the air inlet of the chamber (5) is connected; the high temperature flue gas outlet of the combustion chamber (5) is connected to the gas turbine (6) through the high temperature flue; the gas turbine exhaust gas at the outlet of the gas turbine (6) is sent to the flue gas inlet of the waste heat boiler;
  • the output shaft of the gas turbine (6) is directly connected to the generator (7) via the counter wheel; the generator (7)
  • the highest output power is 1200MW.
  • the variable frequency power supply (4) is a series high voltage variable frequency power supply of the power module, inputting 3 phase 10 kV power frequency, outputting 3 phase 1 Hz to 60 Hz, 0.16 kV-10 kV AC, overload coefficient 1.5; having two operating modes of startup mode and energy saving mode; Start mode, including 0 speed start and rotation start with vector control characteristics; energy saving mode with VVVF characteristics; variable frequency power supply (4) main control board and static excitation device (3) main control board communicate with each other to ensure speed synchronization
  • the motor (2) does not lose its step while maintaining high efficiency and high power factor; the phase shifting transformer and power electronic components of the variable frequency power supply (4) are water-cooled and the protection grade is IP67.
  • Variable speed synchronous motor (2) input 1Hz-60Hz, 0.16kV-10kV; speed 60rpm-3600rpm; static excitation, F-class insulation, water hydrogen hydrogen cooling, hydrogen pressure 0.4MPa, protection grade IP67; sliding bearing, forced lubrication.
  • the static excitation device (3) is coordinated by the variable frequency power supply (4) to meet the excitation requirements of the variable speed synchronous motor (2) under various operating conditions of the startup mode, the energy saving mode and the fault shutdown; the static excitation device (3) has its own demagnetization circuit. .
  • the compressor (1) adopts full turbine stage, 15 stages; when the suction temperature is 20 °C, the highest compression ratio is 21, sliding bearings, forced lubrication.

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Abstract

A heavy-duty gas turbine, comprising 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), and a generator (7). The turbine-style compressor (1) is driven by the variable-speed synchronous motor (2). Rotation speed is adjusted throughout starting, low-load, intermediate load, and high-load operation, so that the turbine-style compressor (1) operates with high efficiency at each level. The entirety of the shaft power generated by the gas turbine (6) is converted into electrical energy by the corresponding generator (7). The present gas turbine is efficient and energy-saving, and features good controllability, flexible operation, rapid start-up and shutdown, and strong primary frequency regulation capabilities.

Description

变速同步电机驱动压气机的重型燃气轮机Variable speed synchronous motor drives a heavy duty gas turbine of a compressor (一)技术领域：(1) Technical field:
本发明变速同步电机驱动压气机的重型燃气轮机涉及一种大容量的在高、中、低负荷区间，高效节能、低碳排放、可控性好、运行灵活、启停快速、一次调频能力强的电站使用的重型燃气轮机。The heavy-duty gas turbine driving the compressor of the variable speed synchronous motor of the invention relates to a large-capacity high, medium and low load range, 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.
(二)背景技术：(2) Background technology:
20世纪90年代以来，燃气-蒸汽联合循环的成熟发展，联合循环机细的热效率整体得到较大提高，电站用重型燃气轮机已成为电网中发电设备的重要组成部分。Since the 1990s, the mature development of the gas-steam combined cycle has greatly improved the overall thermal efficiency of the combined cycle machine. The heavy-duty gas turbine for power stations has become an important part of the power generation equipment in the power grid.
根据工作时燃烧温度的高低和机组功率大小，现有技术电站用重型燃气轮机共分为A-B-C-D-E-F-G-H八个级别。燃气轮机的进气温度越高，机组功率越大，级别越高，热效率越高，通常燃气轮机的排气温度也越高。According to the level of combustion temperature at work and the power of the unit, the heavy-duty gas turbines of the prior art power stations are divided into eight levels of A-B-C-D-E-F-G-H. The higher the intake air temperature of the gas turbine, the higher the unit power, the higher the level, the higher the thermal efficiency, and the higher the exhaust gas temperature of the gas turbine.
已投入商业运行的最先进的现有技术电站用重型燃气轮机为H级燃气轮机；世界上，不同制造商设计、生产的H级燃气轮机具有的共有技术特征是：The most advanced state-of-the-art power plant heavy-duty gas turbines that have been put into commercial operation are H-class gas turbines; the world-owned H-class gas turbines designed and manufactured by different manufacturers have the following common technical features:
a.透平式压气机与燃气涡轮同轴、同转速，发电机并网后，透平式压气机转速不可调；a. The turbo compressor and the gas turbine are coaxial and rotate at the same speed. After the generator is connected to the grid, the turbine compressor speed is not adjustable;
b.透平式压气机的级数分布在13级至17级；b. The number of stages of the turbo compressor is in the order of 13 to 17;
c.压缩比分布在19.2至23；c. The compression ratio is distributed between 19.2 and 23;
d.配置1级可调进口导叶和3级可调静叶，空气流量调节范围大致在50％～100％。d. Configure 1 level adjustable inlet guide vane and 3 stage adjustable vane, the air flow adjustment range is roughly 50% to 100%.
现有技术燃气轮机通常与余热锅炉、蒸汽轮机组成燃气-蒸汽联合循环***；该蒸汽轮机再热或不再热、无回热抽汽口，具有中、低压补汽进口；该蒸汽轮机配有必要的辅机，如凝结水泵、循环水泵、凝汽器、真空泵、冷却塔、润滑油***、控制油***、旁路***等；该余热锅炉通常设计成双压或者三压，分别提供不同压力的过热蒸汽，每一压力均有自己的省煤器、蒸发器、汽包、过热器；通常燃气轮机驱动的发电机所发电量约占燃气-蒸汽联合循环机组的2/3；蒸汽轮机驱动的发电机所发电量约占燃气-蒸汽联合循环机组的1/3。The prior art gas turbine usually comprises a gas-steam combined cycle system with a waste heat boiler and a steam turbine; the steam turbine is reheated or no longer hot, has no regenerative extraction port, and has a medium and low pressure supplemental steam inlet; the steam turbine is equipped with necessary Auxiliary machines, such as condensate pumps, circulating water pumps, condensers, vacuum pumps, cooling towers, lubricating oil systems, control oil systems, bypass systems, etc.; the waste heat boilers are usually designed to be double or triple pressure, respectively providing different pressures. Superheated steam, each pressure has its own economizer, evaporator, steam drum, superheater; usually gas turbine driven generators generate about 2/3 of the gas-steam combined cycle unit; steam turbine driven power generation The machine generates about 1/3 of the gas-steam combined cycle unit.
现有技术也有用集群的现有技术的重型燃气轮机与压水堆蒸汽轮机组成联合循环，以期取得更高的热效率。The prior art also utilizes a cluster of prior art heavy duty gas turbines and a pressurized water reactor steam turbine to form a combined cycle to achieve higher thermal efficiency.
(三)发明内容：(3) Invention content:
所要解决的技术问题：Technical problems to be solved:
现有技术的电站用重型燃气轮机透平式压气机与燃气涡轮同轴、同转速，发电机并网后，透平式压气机转速不可调；依靠所配置的1级可调进口导叶和3级可调静叶，空气流量由100％负荷，向下调节到50％负荷，压气机效率已明显下降，再继续降负荷，压气机效率将急剧下降，还有陷入喘振的可能；The prior art heavy-duty gas turbine turbocharger for power station is coaxial with the gas turbine, and the same speed, after the generator is connected to the grid, the turbine compressor speed is not adjustable; relying on the configured 1 level adjustable inlet guide vane and 3 Level adjustable vane, air flow from 100% load, down to 50% load, compressor efficiency has dropped significantly, and then continue to reduce load, compressor efficiency will drop sharply, and there is the possibility of falling into surge;
与煤炭相比较天然气价格昂贵，电站用重型燃气轮机通常用于调峰，以弥补风电、光伏等新能源的反调峰特性，但现有技术的电站用重型燃气轮机低负荷下热耗剧增，低负荷下，压气机的工作效率连40％都不到，现有技术的电站用重型燃气轮机的调峰特性并不理想，甚至于还不如现有技术的燃煤机组。Compared with coal, natural gas is expensive. Heavy-duty gas turbines for power stations are usually used for peak shaving to compensate for the anti-peaking characteristics of new energy sources such as wind power and photovoltaics. However, the heavy-duty gas turbines of the prior art have a sharp increase in heat consumption under low load. Under load, the working efficiency of the compressor is not even 40%. The peaking characteristics of the prior art heavy-duty gas turbines for power stations are not ideal, even worse than the coal-fired units of the prior art.
解决其技术问题采用的技术方案：The technical solution adopted to solve its technical problems:
本发明变速同步电机驱动压气机的重型燃气轮机采取与现有技术完全不同的技术路线，改变“透平式压气机与燃气涡轮同轴、同转速，发电机并网后，透平式压气机转速不可调；”的设计，透平式压气机由变速同步电机驱动，从启动、带低负荷、中间负荷、高负荷，全程变转速调节，透平式压气机全程运行在高效率工况下；燃气涡轮产生的轴功率经由相应的发电机全部转换为电能。The heavy-duty gas turbine of the variable speed synchronous motor driving compressor of the invention adopts a completely different technical route from the prior art, and changes the "coaxial compressor and gas turbine coaxial, the same speed, after the generator is connected to the grid, the turbine compressor speed It is not adjustable;"The design, the turbo compressor is driven by the variable speed synchronous motor, starting from the start, with low load, intermediate load, high load, full speed change, the turbo compressor is running in high efficiency conditions; The shaft power generated by the gas turbine is fully converted to electrical energy via the respective generators.
本发明变速同步电机驱动压气机的重型燃气轮机包括压气机(1)、变速同步电机(2)、静态励磁装置(3)、变频电源(4)、燃烧室(5)、燃气涡轮(6)、发电机(7)；变频电源(4)输入端接3相10kV、50Hz厂用高压母线，输出3相1Hz到120Hz/3相1Hz到60Hz的波形良好的交流，输出电压随输出频率的升高而升高，在输出频率达到120Hz/60Hz时，输出电压达到10kV；变速同步电动机(2)配有静态励磁装置(3)；变速同步电动机(2)受变频电源(4)驱动，转速在60rpm到7200rpm/60rpm到3600rpm无级可调；变速同步电动机(2)与压气机(1)经对轮直联，最高转速时输出轴功率足以将额定的空气量压缩到额定的压缩比，并留有必要的余量；压气机(1)的吸入口经过滤组件集群吸入空气，压气机(1)的出口经管道与燃烧室(5)的空气入口相连接；燃烧室(5)的高温烟气出口经高温烟道与燃气涡轮(6)相连接；燃气涡轮(6)出口的燃气涡轮尾气送余热锅炉烟气入口；燃气涡轮(6)的输出轴与发电机(7)经对轮直联；发电机(7)将燃气涡轮(6)的输出轴功率最高效率地转化为电功率。The heavy-duty gas turbine for driving the compressor of the variable speed synchronous motor of the 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), Generator (7); variable frequency power supply (4) input terminal 3 phase 10kV, 50Hz factory high voltage bus, output 3 phase 1Hz to 120Hz / 3 phase 1Hz to 60Hz waveform good AC, output voltage increases with output frequency And rise, when the output frequency reaches 120Hz/60Hz, the output voltage reaches 10kV; the variable speed synchronous motor (2) is equipped with static excitation device (3); the variable speed synchronous motor (2) is driven by the variable frequency power supply (4), the rotation speed is 60rpm It is steplessly adjustable from 7200rpm/60rpm to 3600rpm; the variable speed synchronous motor (2) and the compressor (1) are directly connected to the opposite wheel, and the output shaft power is high enough to compress the rated air volume to the rated compression ratio at the maximum speed, and stay The necessary margin is provided; the suction port of the compressor (1) draws in air through the filter assembly cluster, and the outlet of the compressor (1) is connected to the air inlet of the combustion chamber (5) via a pipe; the high temperature smoke of the combustion chamber (5) The gas outlet is connected to the gas turbine (6) via a high temperature flue; the gas turbine (6) outlet The gas turbine exhaust gas is sent to the flue gas inlet of the waste heat boiler; the output shaft of the gas turbine (6) is directly connected to the generator (7) via the counter wheel; the generator (7) converts the output shaft power of the gas turbine (6) into the most efficient conversion into Electric power.
发明的有益效果：Advantageous effects of the invention:
●变速同步电机驱动的压气机，转速在0至100％区间内无级可调，压气机在整个高、中、低负荷区间内可保持高效率运行，也不会发生喘振；● Variable speed synchronous motor driven compressor, the speed is steplessly adjustable in the range of 0 to 100%, and the compressor can maintain high efficiency operation in the whole high, medium and low load range, and no surge occurs;
●变速同步电机驱动的压气机可以精确调节燃气轮机不同负荷下，不同气象条件下所需要的空气的质量流量和压缩比；●The variable speed synchronous motor driven compressor can precisely adjust the mass flow rate and compression ratio of the air required under different meteorological conditions of the gas turbine;
●变速同步电机驱动的压气机可以全部由透平级构成；也可以由透平级和离心级混合构成；●The variable speed synchronous motor driven compressor can be composed entirely of turbine stages; it can also be composed of a mixture of turbine stage and centrifugal stage;
●变速同步电机驱动的压气机的最高转速可以与燃气涡轮转速相同，以便充分利用现有技术传统同步电机的成熟产品线；● The maximum speed of the compressor driven by the variable speed synchronous motor can be the same as the speed of the gas turbine, so as to make full use of the mature product line of the conventional synchronous motor of the prior art;
●变速同步电机驱动的压气机的最高转速也可以是燃气涡轮转速一倍或者更高，同样压缩比、同样质量流量的压气机，其体积、重量、级数、制造成本将明显下降；● The maximum speed of the compressor driven by the variable speed synchronous motor can also be double or higher than that of the gas turbine. The volume, weight, number of stages, and manufacturing cost of the compressor with the same compression ratio and the same mass flow rate will be significantly reduced;
●依托本发明变速同步电机驱动压气机的重型燃气轮机，可以设计、制造压缩比大于23的，燃气初温高于1700℃的电站用重型燃气轮机，以取得更高的燃气轮机单循环效率和燃气轮机-蒸汽轮机联合循环效率；●Based on the heavy-duty gas turbine of the variable speed synchronous motor driven compressor of the present invention, it is possible to design and manufacture a heavy-duty gas turbine for a power plant with a compression ratio greater than 23 and a gas initial temperature higher than 1700 ° C to achieve a higher gas turbine single cycle efficiency and gas turbine-steam Turbine combined cycle efficiency;
●依托本发明变速同步电机驱动压气机的重型燃气轮机，重型燃气轮机轴输出最高电功率将成倍增加，燃气轮机-蒸汽轮机联合循环的发电热耗大幅度显著降低；● According to the heavy-duty gas turbine of the variable speed synchronous motor driving compressor of the present invention, the maximum electric power output of the heavy-duty gas turbine shaft will be multiplied, and the heat generation heat consumption of the gas turbine-steam turbine combined cycle is significantly reduced;
●依托本发明变速同步电机驱动压气机的重型燃气轮机，重型燃气轮机轴输出电功率将成倍增加，燃气轮机-蒸汽轮机联合循环中、低负荷下的供电热耗显著降低，高负荷下的供电热耗也有所降低；● According to the heavy-duty gas turbine of the variable speed synchronous motor driven compressor of the present invention, the output power of the heavy-duty gas turbine shaft will be multiplied, and the heat consumption of the gas turbine-steam turbine combined cycle and low load is significantly reduced, and the power consumption of the power supply under high load is also reduced. Reduced
●依托本发明变速同步电机驱动压气机的重型燃气轮机，可以设计、制造燃气轮机轴输出电功率达1000MW或更高出力的重型燃气轮机；●The heavy-duty gas turbine that drives the compressor by the variable speed synchronous motor of the present invention can design and manufacture a heavy-duty gas turbine whose output power of the gas turbine shaft reaches 1000MW or higher;
●     依托本发明变速同步电机驱动压气机的重型燃气轮机，通过精细调节压气机出口空气压力、质量流量及燃料量的方法，同一型号的重型燃气轮机，容易匹配不同安装地点的大气压力、不同季节的大气温度，取得优良的技术经济指标；● According to the heavy-duty gas turbine that drives the compressor by the variable speed synchronous motor of the present invention, the same type of heavy-duty gas turbine can easily match the atmospheric pressure of different installation sites and the atmosphere of different seasons by finely adjusting the air pressure, mass flow rate and fuel quantity of the compressor outlet. Temperature, achieving excellent technical and economic indicators;
●依托本发明变速同步电机驱动压气机的重型燃气轮机，通过精细调节压气机出口空气压力、质量流量及燃料量的方法，可以安全、平稳、快速启停重型燃气轮机；●The heavy-duty gas turbine that drives the compressor according to the variable speed synchronous motor of the present invention can safely, smoothly and quickly start and stop the heavy gas turbine by finely adjusting the air pressure, mass flow and fuel amount at the outlet of the compressor;
●依托本发明变速同步电机驱动压气机的重型燃气轮机，通过精细调节压气机出口空气压力、质量流量及燃料量的方法，可以扩大重型燃气轮机的调峰负荷响应区间，并维持重型燃气轮机尾气温度在目标值，只在较小的需要的范围内波动；● According to the heavy-duty gas turbine that drives the compressor by the variable speed synchronous motor of the present invention, the peak load response range of the heavy gas turbine can be expanded by finely adjusting the air pressure, mass flow rate and fuel amount of the compressor outlet, and the exhaust gas temperature of the heavy gas turbine is maintained at the target. Value, fluctuating only within a small required range;
●依托本发明变速同步电机驱动压气机的重型燃气轮机，驱动压气机的变速同步电机的启动电流不会超过该变速同步电机的额定电流；● According to the heavy-duty gas turbine of the variable speed synchronous motor driving the compressor of the present invention, the starting current of the variable speed synchronous motor driving the compressor does not exceed the rated current of the variable speed synchronous motor;
●依托本发明变速同步电机驱动压气机的重型燃气轮机，燃烧室有较大的布置空间，容易实现分级送风、烟气再循环、喷水等低氮燃烧措施，大幅度降低NOx生成量；●Relying on the heavy-duty gas turbine driven by the variable speed synchronous motor of the present invention, the combustion chamber has a large arrangement space, and it is easy to realize low-nitrogen combustion measures such as staged air supply, flue gas recirculation, water spray, etc., and the NOx production amount is greatly reduced;
●依托本发明变速同步电机驱动压气机的重型燃气轮机，容易实现燃气-蒸汽联合循环之间的回热安排，显著降低燃气-蒸汽联合循环的热耗；● According to the heavy-duty gas turbine of the variable speed synchronous motor driving compressor of the invention, the heat recovery arrangement between the gas-steam combined cycle is easily realized, and the heat consumption of the gas-steam combined cycle is significantly reduced;
●依托本发明变速同步电机驱动压气机的重型燃气轮机，压气机在启动工况和低负荷工况远离喘振临界线，发生喘振的可能性大大减少，也无需在压气机的中间级设置排气孔，以防止喘振发生，运行的安全性和经济性显著提高；●The heavy-duty gas turbine that drives the compressor according to the variable speed synchronous motor of the present invention, the compressor is far from the surge critical line in the starting condition and the low load working condition, the possibility of occurrence of surge is greatly reduced, and there is no need to set the row in the middle stage of the compressor. Stomata to prevent surge, safe operation and economical efficiency;
●依托本发明变速同步电机驱动压气机的重型燃气轮机，高精度大件机械加工工作量大幅度减少，转子重量、转子转动惯量大幅度减少，设计、制造、安装、调试成本降低，容易实现模块化，系列化，大型化；●With the heavy-duty gas turbine driven by the variable speed synchronous motor of the present invention, the machining work of high-precision large-scale machining is greatly reduced, the rotor weight and the rotor inertia are greatly reduced, and the design, manufacturing, installation and commissioning costs are reduced, and the modularization is easy. , serialization, large-scale;
●依托本发明变速同步电机驱动压气机的重型燃气轮机，特别适合与压水堆蒸汽轮机组成联合循环，以较高的燃烧室燃烧温度和燃气涡轮尾气温度，取得更高的联合循环热效率。● The heavy-duty gas turbine driven by the variable speed synchronous motor of the present invention is particularly suitable for a combined cycle with a pressurized water reactor steam turbine to achieve a higher combined cycle thermal efficiency with a higher combustion chamber combustion temperature and gas turbine exhaust gas temperature.
(四)附图说明：(4) Description of the drawings:
图1为变速同步电机驱动压气机的重型燃气轮机***图。1 is a diagram of a heavy-duty gas turbine system in which a variable speed synchronous motor drives a compressor.
在图1中：In Figure 1:
1压气机、                         2变速同步电机1 compressor, 2 variable speed synchronous motor
3静态励磁装置、                   4变频电源、3 static excitation device, 4 variable frequency power supply,
5燃烧室、                          6燃气涡轮、5 combustion chambers, 6 gas turbines,
7发电机。7 generators.
(五)具体实施方式：(5) Specific implementation methods:
实施例1：Example 1:
现结合图1以一台H级(仅指其燃气涡轮进口温度和最大尾气质量流量与现有技术H级相若)变速同步电机驱动压气机的重型燃气轮机(120Hz方案)为例，说明实现本发明的优选方式。Referring now to Figure 1, a H-class (only the gas turbine inlet temperature and maximum exhaust gas mass flow rate is similar to the prior art H-class) variable-speed synchronous motor-driven compressor heavy-duty gas turbine (120Hz scheme) is taken as an example to illustrate the implementation. A preferred mode of the invention.
本发明变速同步电机驱动压气机的重型燃气轮机包括压气机(1)、变速同步电机(2)、静态励磁装置(3)、变频电源(4)、燃烧室(5)、燃气涡轮(6)、发电机(7)；变频电源(4)输入端接3相10kV、50Hz厂用母线，输出3相1Hz到120Hz的波形良好的交流，输出电压随输出频率的升高而升高，在输出频率达到120Hz时，输出电压达到10kV；变速同步电动机(2)配有静态励磁装置(3)；变速同步电动机(2)受变频电源(4)驱动，转速在60rpm到7200rpm无级可调；变速同步电动机(2)与压气机(1)经对轮直联，最高转速时输出轴功率720MW；压气机(1)的吸入口经过滤组件集群吸入空气，压气机(1)的出口经管道与燃烧室(5)的空气入口相连接；燃烧室(5)的高温烟气出口经高温烟道与燃气涡轮(6)相连接；燃气涡轮(6)出口的燃气涡轮尾气送余热锅炉烟气入口；燃气涡轮(6)的输出轴与发电机(7)经对轮直联；发电机(7)的最高输出功率1200MW。The heavy-duty gas turbine for driving the compressor of the variable speed synchronous motor of the 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), Generator (7); variable frequency power supply (4) input terminal 3 phase 10kV, 50Hz factory bus, output 3 phase 1Hz to 120Hz waveform good AC, output voltage increases with the output frequency, at the output frequency When the frequency reaches 120Hz, the output voltage reaches 10kV; the variable speed synchronous motor (2) is equipped with static excitation device (3); the variable speed synchronous motor (2) is driven by the variable frequency power supply (4), and the rotation speed is steplessly adjustable from 60rpm to 7200rpm; The motor (2) and the compressor (1) are directly connected to the opposite wheel, and the output shaft power is 720 MW at the maximum speed; the suction port of the compressor (1) sucks air through the filter assembly cluster, and the outlet of the compressor (1) is piped and burned. The air inlet of the chamber (5) is connected; the high temperature flue gas outlet of the combustion chamber (5) is connected to the gas turbine (6) through the high temperature flue; the gas turbine exhaust gas at the outlet of the gas turbine (6) is sent to the flue gas inlet of the waste heat boiler; The output shaft of the gas turbine (6) is directly connected to the generator (7) via the opposite wheel; the generator (7) The highest output power is 1200MW.
变频电源(4)为功率模块串联式高压变频电源，输入3相10kV工频、输出3相1Hz到120Hz、0.08kV-10kV的交流、过载系数1.5；具有启动模式和节能模式两种运行模式；启动模式，包括0转速启动和旋转启动具有矢量控制特性；节能模式，具有VVVF特性；变频电源(4)的主控板与静态励磁装置(3)的主控板之间互相通讯，保证变速同步电机(2)不失步同时保持高效率、高功率因素；变频电源(4)的移相变压器及功率电子器件均为水冷、防护等级IP67。The variable frequency power supply (4) is a series high voltage variable frequency power supply of power module, inputting 3 phase 10kV power frequency, output 3 phase 1Hz to 120Hz, 0.08kV-10kV AC, overload factor 1.5; with start mode and energy saving mode; Start mode, including 0 speed start and rotation start with vector control characteristics; energy saving mode with VVVF characteristics; variable frequency power supply (4) main control board and static excitation device (3) main control board communicate with each other to ensure speed synchronization The motor (2) does not lose its step while maintaining high efficiency and high power factor; the phase shifting transformer and power electronic components of the variable frequency power supply (4) are water-cooled and the protection grade is IP67.
变速同步电机(2)输入1Hz-120Hz、0.08kV-10kV；转速60rpm-7200rpm；静态励磁、F级绝缘、水氢氢冷却，氢压0.4MPa、防护等级IP67；滑动轴承、强制润滑。Variable speed synchronous motor (2) input 1Hz-120Hz, 0.08kV-10kV; speed 60rpm-7200rpm; static excitation, F-class insulation, water hydrogen hydrogen cooling, hydrogen pressure 0.4MPa, protection grade IP67; sliding bearing, forced lubrication.
静态励磁装置(3)受变频电源(4)的协调控制，满足启动模式、节能模式和故障停机各工况下变速同步电机(2)的励磁需要；静态励磁装置(3)自带灭磁回路。The static excitation device (3) is coordinated by the variable frequency power supply (4) to meet the excitation requirements of the variable speed synchronous motor (2) under various operating conditions of the startup mode, the energy saving mode and the fault shutdown; the static excitation device (3) has its own demagnetization circuit. .
压气机(1)采用全透平级，7级；吸气温度20℃时，最高压缩比21，滑动轴承，强制润滑。The compressor (1) uses a full turbine stage, 7 stages; at the suction temperature of 20 ° C, the highest compression ratio of 21, sliding bearings, forced lubrication.
实施例2：Example 2:
现结合图1以一台H级(仅指其燃气涡轮进口温度和最大尾气质量流量与现有技术H级相若)变速同步电机驱动压气机的重型燃气轮机(60Hz方案)为例，说明实现本发明的优选方式。Now take a heavy-duty gas turbine (60Hz scheme) with a H-class (only the gas turbine inlet temperature and the maximum exhaust gas mass flow rate is similar to the prior art H-class) variable speed synchronous motor-driven compressor as an example, A preferred mode of the invention.
本发明变速同步电机驱动压气机的重型燃气轮机包括压气机(1)、变速同步电机(2)、 静态励磁装置(3)、变频电源(4)、燃烧室(5)、燃气涡轮(6)、发电机(7)；变频电源(4)输入端接3相10kV、50Hz厂用母线，输出3相1Hz到60Hz的波形良好的交流，输出电压随输出频率的升高而升高，在输出频率达到60Hz时，输出电压达到10kV；变速同步电动机(2)配有静态励磁装置(3)；变速同步电动机(2)受变频电源(4)驱动，转速在60rpm到3600rpm无级可调；变速同步电动机(2)与压气机(1)经对轮直联，最高转速时输出轴功率720MW；压气机(1)的吸入口经过滤组件集群吸入空气，压气机(1)的出口经管道与燃烧室(5)的空气入口相连接；燃烧室(5)的高温烟气出口经高温烟道与燃气涡轮(6)相连接；燃气涡轮(6)出口的燃气涡轮尾气送余热锅炉烟气入口；燃气涡轮(6)的输出轴与发电机(7)经对轮直联；发电机(7)的最高输出功率1200MW。The heavy-duty gas turbine driving the compressor of the variable speed synchronous motor of the 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), Generator (7); variable frequency power supply (4) input terminal 3 phase 10kV, 50Hz factory bus, output 3 phase 1Hz to 60Hz waveform good AC, output voltage increases with the output frequency, at the output frequency When the frequency reaches 60Hz, the output voltage reaches 10kV; the variable speed synchronous motor (2) is equipped with static excitation device (3); the variable speed synchronous motor (2) is driven by the variable frequency power supply (4), and the rotation speed is steplessly adjustable from 60rpm to 3600rpm; The motor (2) and the compressor (1) are directly connected to the opposite wheel, and the output shaft power is 720 MW at the maximum speed; the suction port of the compressor (1) sucks air through the filter assembly cluster, and the outlet of the compressor (1) is piped and burned. The air inlet of the chamber (5) is connected; the high temperature flue gas outlet of the combustion chamber (5) is connected to the gas turbine (6) through the high temperature flue; the gas turbine exhaust gas at the outlet of the gas turbine (6) is sent to the flue gas inlet of the waste heat boiler; The output shaft of the gas turbine (6) is directly connected to the generator (7) via the counter wheel; the generator (7) The highest output power is 1200MW.
变频电源(4)为功率模块串联式高压变频电源，输入3相10kV工频、输出3相1Hz到60Hz、0.16kV-10kV的交流、过载系数1.5；具有启动模式和节能模式两种运行模式；启动模式，包括0转速启动和旋转启动具有矢量控制特性；节能模式，具有VVVF特性；变频电源(4)的主控板与静态励磁装置(3)的主控板之间互相通讯，保证变速同步电机(2)不失步同时保持高效率、高功率因素；变频电源(4)的移相变压器及功率电子器件均为水冷、防护等级IP67。The variable frequency power supply (4) is a series high voltage variable frequency power supply of the power module, inputting 3 phase 10 kV power frequency, outputting 3 phase 1 Hz to 60 Hz, 0.16 kV-10 kV AC, overload coefficient 1.5; having two operating modes of startup mode and energy saving mode; Start mode, including 0 speed start and rotation start with vector control characteristics; energy saving mode with VVVF characteristics; variable frequency power supply (4) main control board and static excitation device (3) main control board communicate with each other to ensure speed synchronization The motor (2) does not lose its step while maintaining high efficiency and high power factor; the phase shifting transformer and power electronic components of the variable frequency power supply (4) are water-cooled and the protection grade is IP67.
变速同步电机(2)输入1Hz-60Hz、0.16kV-10kV；转速60rpm-3600rpm；静态励磁、F级绝缘、水氢氢冷却，氢压0.4MPa、防护等级IP67；滑动轴承、强制润滑。Variable speed synchronous motor (2) input 1Hz-60Hz, 0.16kV-10kV; speed 60rpm-3600rpm; static excitation, F-class insulation, water hydrogen hydrogen cooling, hydrogen pressure 0.4MPa, protection grade IP67; sliding bearing, forced lubrication.
静态励磁装置(3)受变频电源(4)的协调控制，满足启动模式、节能模式和故障停机各工况下变速同步电机(2)的励磁需要；静态励磁装置(3)自带灭磁回路。The static excitation device (3) is coordinated by the variable frequency power supply (4) to meet the excitation requirements of the variable speed synchronous motor (2) under various operating conditions of the startup mode, the energy saving mode and the fault shutdown; the static excitation device (3) has its own demagnetization circuit. .
压气机(1)采用全透平级，15级；吸气温度20℃时，最高压缩比21，滑动轴承，强制润滑。The compressor (1) adopts full turbine stage, 15 stages; when the suction temperature is 20 °C, the highest compression ratio is 21, sliding bearings, forced lubrication.

Claims (5)

  1. 一种变速同步电机驱动压气机的重型燃气轮机，其特征在于：包括压气机(1)、变速同步电机(2)、静态励磁装置(3)、变频电源(4)、燃烧室(5)、燃气涡轮(6)、发电机(7)；变频电源(4)输入端接3相10kV、50Hz厂用高压母线，输出3相1Hz到120Hz/3相1Hz到60Hz的波形良好的交流，输出电压随输出频率的升高而升高，在输出频率达到120Hz/60Hz时，输出电压达到10kV；变速同步电动机(2)配有静态励磁装置(3)；变速同步电动机(2)受变频电源(4)驱动，转速在60rpm到7200rpm/60rpm到3600rpm无级可调；变速同步电动机(2)与压气机(1)经对轮直联，最高转速时输出轴功率足以将额定的空气量压缩到额定的压缩比，并留有必要的余量；压气机(1)的吸入口经过滤组件集群吸入空气，压气机(1)的出口经管道与燃烧室(5)的空气入口相连接；燃烧室(5)的高温烟气出口经高温烟道与燃气涡轮(6)相连接；燃气涡轮(6)出口的燃气涡轮尾气送余热锅炉烟气入口；燃气涡轮(6)的输出轴与发电机(7)经对轮直联；发电机(7)将燃气涡轮(6)的输出轴功率最高效率地转化为电功率。A heavy-duty gas turbine for driving a compressor with a variable speed synchronous motor, comprising: 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), generator (7); variable frequency power supply (4) input terminal 3 phase 10kV, 50Hz factory high voltage bus, output 3 phase 1Hz to 120Hz / 3 phase 1Hz to 60Hz waveform good AC, output voltage with The output frequency increases and rises. When the output frequency reaches 120Hz/60Hz, the output voltage reaches 10kV; the variable speed synchronous motor (2) is equipped with static excitation device (3); the variable speed synchronous motor (2) is controlled by variable frequency power supply (4) Drive, the speed is continuously adjustable from 60rpm to 7200rpm/60rpm to 3600rpm; the variable speed synchronous motor (2) and the compressor (1) are directly connected to the opposite wheel, and the output shaft power is sufficient to compress the rated air volume to the rated maximum speed. The compression ratio is left with the necessary margin; the suction port of the compressor (1) draws in air through the filter assembly cluster, and the outlet of the compressor (1) is connected to the air inlet of the combustion chamber (5) via a pipe; 5) The high temperature flue gas outlet is connected to the gas turbine (6) through the high temperature flue; The gas turbine exhaust gas at the outlet of the wheel (6) is sent to the flue gas inlet of the waste heat boiler; the output shaft of the gas turbine (6) is directly connected to the generator (7) via the counter wheel; the generator (7) outputs the output shaft of the gas turbine (6) The power is most efficiently converted into electrical power.
  2. 根据权利要求1所述的变速同步电机驱动压气机的重型燃气轮机，其特征是所述的变频电源(4)为功率模块串联式高压变频电源，输入3相10kV工频、输出3相1Hz到120Hz/1Hz到60Hz、0.08kV-10kV/0.16kV-10kV、过载系数1.5；具有启动模式和节能模式两种运行模式；启动模式，包括0转速启动和旋转启动具有矢量控制特性；节能模式，具有VVVF特性；变频电源(4)的主控板与静态励磁装置(3)的主控板之间互相通讯，保证变速同步电机(2)不失步同时保持高效率、高功率因素；变频电源(4)的移相变压器及功率电子器件均为水冷、防护等级IP67。A heavy-duty gas turbine for driving a variable speed synchronous motor according to claim 1, wherein said variable frequency power supply (4) is a power module series high voltage variable frequency power supply, inputting 3 phase 10 kV power frequency, outputting 3 phase 1 Hz to 120 Hz. /1Hz to 60Hz, 0.08kV-10kV/0.16kV-10kV, overload factor 1.5; with start mode and energy-saving mode; start mode, including 0 speed start and rotation start with vector control characteristics; energy-saving mode, with VVVF Characteristics; the main control board of the variable frequency power supply (4) communicates with the main control board of the static excitation device (3) to ensure that the variable speed synchronous motor (2) does not lose the step while maintaining high efficiency and high power factor; the variable frequency power supply (4) The phase shifting transformer and power electronics are water-cooled and IP67 rated.
  3. 根据权利要求1所述的变速同步电机驱动压气机的重型燃气轮机，其特征是所述的变速同步电机(2)输入1Hz到120Hz/1Hz到60Hz、0.08kV-10kV/0.16kV-10kV交流电；转速60rpm-7200rpm/60rpm-3600rpm；静态励磁、F级绝缘、水氢氢冷却，氢压0.4MPa、防护等级IP67；滑动轴承、强制润滑。A heavy-duty gas turbine for driving a variable speed synchronous motor according to claim 1, wherein said variable speed synchronous motor (2) inputs 1 Hz to 120 Hz / 1 Hz to 60 Hz, 0.08 kV - 10 kV / 0.16 kV - 10 kV alternating current; 60rpm-7200rpm/60rpm-3600rpm; static excitation, F-class insulation, water hydrogen hydrogen cooling, hydrogen pressure 0.4MPa, protection grade IP67; sliding bearing, forced lubrication.
  4. 根据权利要求1所述的变速同步电机驱动压气机的重型燃气轮机，其特征是所述的静态励磁装置(3)受变频电源(4)的协调控制，满足启动模式、节能模式和故障停机各工况下变速同步电机(2)的励磁需要；静态励磁装置(3)自带灭磁回路。A heavy-duty gas turbine for driving a variable speed synchronous motor according to claim 1, wherein said static excitation device (3) is coordinated by a variable frequency power supply (4) to satisfy a startup mode, a power saving mode, and a shutdown operation. The excitation of the variable speed synchronous motor (2) is required; the static excitation device (3) has its own de-excitation circuit.
  5. 根据权利要求1所述的变速同步电机驱动压气机的重型燃气轮机，其特征是所述的压气机(1)采用全透平级，7级/15级；吸气温度20℃时，最高压缩比21，滑动轴承，强制润滑。A heavy-duty gas turbine for driving a variable speed synchronous motor driven compressor according to claim 1, wherein said compressor (1) adopts a full turbine stage, 7 stages / 15 stages; and the highest compression ratio when the intake temperature is 20 ° C 21, sliding bearings, forced lubrication.
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