CN105840396A - 逆变式水轮发电机组 - Google Patents

逆变式水轮发电机组 Download PDF

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Publication number
CN105840396A
CN105840396A CN201610350266.8A CN201610350266A CN105840396A CN 105840396 A CN105840396 A CN 105840396A CN 201610350266 A CN201610350266 A CN 201610350266A CN 105840396 A CN105840396 A CN 105840396A
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CN
China
Prior art keywords
generator
water turbine
turbine
electromotor
contravariant
Prior art date
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Pending
Application number
CN201610350266.8A
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English (en)
Inventor
张书荣
谭凤艳
刘逢良
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Ganzhou Gold Water Generating Equipment Co Ltd
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Ganzhou Gold Water Generating Equipment Co Ltd
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Publication date
Application filed by Ganzhou Gold Water Generating Equipment Co Ltd filed Critical Ganzhou Gold Water Generating Equipment Co Ltd
Priority to CN201610350266.8A priority Critical patent/CN105840396A/zh
Publication of CN105840396A publication Critical patent/CN105840396A/zh
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/10—Submerged units incorporating electric generators or motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Eletrric Generators (AREA)
  • Hydraulic Turbines (AREA)

Abstract

逆变式水轮发电机组，涉及一种新的水轮发电机组，实现更好地降低机组价格、减少厂房面积。包括水轮机、发电机、整流器、并网逆变器，其特征是：水流通过引水渠道流入水轮机导水机构内，带动水轮机转动部分转动，水轮机带动发电机转动产生磁场转化为电能，由于水轮机、发电机不同步，输出的电要求通过发电机整流器进行整流，再通过并网逆变器逆变后输送至变压器上升压后输入大电网。

Description

逆变式水轮发电机组
技术领域
本发明涉及一种新的水轮发电机组。
背景技术
常规的电站选型都是根据电站的设计水头、设计流量及装机容量选出适合该电站的水轮机发电机组的型号，但水轮机与发电机转速要求同步，再通过控制屏输送至变压器升压后再供至大电网。这种选型适合水头、流量变化较小的电站，对于水头、流量变化较大的电站，机组运行工况点偏离最优工况很远，机组运行效率很低。同时水轮机与发电机要求转速同步，所以发电机机座号要求加大，相应机组厂房面积也增大，这样大大地增加了整个电站的投资成本。
发明内容
本发明目的在于：为了更好地降低机组价格、减少厂房面积，开发出逆变式水轮发电机组，这种发电机组由于不需要同步转速，所以发电机机座号可以做得很小，同时解决了水头流量变化较大的电站效率低的难题，而达到降成增效的郊果。
本发明技术方案是：逆变式水轮发电机组，包括水轮机、发电机、整流器、并网逆变器，其特征是：水流通过引水渠道流入水轮机导水机构内，带动水轮机转动部分转动，水轮机带动发电机转动产生磁场转化为电能，由于水轮机、发电机不同步，输出的电要求通过发电机整流器进行整流，再通过并网逆变器逆变后输送至变压器上升压后输入大电网。
进一步的所述的逆变式水轮发电机组，其特征是：其中水轮机和发电机安装在水下。
本发明有益效果在于：逆变式水轮发电机组具有：
1.水轮机与发电机不需要同转速，所以发电机的转速尽可能选高转速的，那发电机的机座号就可减成很小，机组造价成本低，安装维护方便。
2.由于发电机转速高，机座号小，这种机型可以采用整装机，这样厂房占用面积较小，总投资成本低。同时，低水头大流量的电站还可采用机组整体装在水下的结构。
3.对于水头、流量变化较大的电站采用这种机型可以解决机组效率低的问题。大大降低电站投资成本，提高效率，适合全国范围内全面推广。
附图说明
图1是本发明结构示意图
图中：水轮机导水机构1、水轮机传动部分2、发电机3、整流器4、并网逆变器5、变压器6、电网7、控制器8。
具体实施方式
图中 逆变式水轮发电机组，包括水轮机、发电机、整流器、并网逆变器，其特征是：水流通过引水渠道流入水轮机导水机构1内，带动水轮机转动部分2转动，水轮机带动发电机3转动产生磁场转化为电能，发电机3输出的电通过发电机整流器4进行整流，再通过并网逆变器5逆变后输送至变压器6上升压后输入大电网7，整个系统受控制器8控制；水轮机、发电机安装在水下。

Claims (4)

1.逆变式水轮发电机组，包括水轮机、发电机、整流器、并网逆变器，其特征是：水流通过引水渠道流入水轮机导水机构内，带动水轮机转动部分转动，水轮机带动发电机转动产生磁场转化为电能，发电机输出的电通过发电机整流器进行整流。
2.如权利要求1 所述的逆变式水轮发电机组，其特征是：发电机输出的电通过发电机整流器进行整流后，再通过并网逆变器逆变。
3.如权利要求1 所述的逆变式水轮发电机组，其特征是：通过并网逆变器逆变后输送至变压器上升压后输入大电网。
4.如权利要求1-3之一 所述的逆变式水轮发电机组，其特征是：其中水轮机和发电机安装在水下。
CN201610350266.8A 2016-05-25 2016-05-25 逆变式水轮发电机组 Pending CN105840396A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610350266.8A CN105840396A (zh) 2016-05-25 2016-05-25 逆变式水轮发电机组

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610350266.8A CN105840396A (zh) 2016-05-25 2016-05-25 逆变式水轮发电机组

Publications (1)

Publication Number Publication Date
CN105840396A true CN105840396A (zh) 2016-08-10

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2034624U (zh) * 1988-04-15 1989-03-22 伍国梧 微型水轮发电机组
US20090134623A1 (en) * 2003-05-29 2009-05-28 Krouse Wayne F Fluid energy apparatus and method
CN102705151A (zh) * 2012-06-28 2012-10-03 谢宝忠 一种水轮机组变速运行方法及系统
CN102946102A (zh) * 2012-12-03 2013-02-27 山东电力工程咨询院有限公司 潮流发电机组变流输电系统及工作方法
CN203722529U (zh) * 2013-12-07 2014-07-16 成都乾威科技有限公司 一种微型小水电发电系统
CN104881317A (zh) * 2015-06-18 2015-09-02 山东泰山抽水蓄能电站有限责任公司 抽水蓄能机组不同工况下同期并网仿真平台及仿真系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2034624U (zh) * 1988-04-15 1989-03-22 伍国梧 微型水轮发电机组
US20090134623A1 (en) * 2003-05-29 2009-05-28 Krouse Wayne F Fluid energy apparatus and method
CN102705151A (zh) * 2012-06-28 2012-10-03 谢宝忠 一种水轮机组变速运行方法及系统
CN102946102A (zh) * 2012-12-03 2013-02-27 山东电力工程咨询院有限公司 潮流发电机组变流输电系统及工作方法
CN203722529U (zh) * 2013-12-07 2014-07-16 成都乾威科技有限公司 一种微型小水电发电系统
CN104881317A (zh) * 2015-06-18 2015-09-02 山东泰山抽水蓄能电站有限责任公司 抽水蓄能机组不同工况下同期并网仿真平台及仿真系统

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Application publication date: 20160810