WO2011009285A1 - 一种可移动式岸电变频供电装置 - Google Patents

一种可移动式岸电变频供电装置 Download PDF

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Publication number
WO2011009285A1
WO2011009285A1 PCT/CN2010/000951 CN2010000951W WO2011009285A1 WO 2011009285 A1 WO2011009285 A1 WO 2011009285A1 CN 2010000951 W CN2010000951 W CN 2010000951W WO 2011009285 A1 WO2011009285 A1 WO 2011009285A1
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WIPO (PCT)
Prior art keywords
power supply
supply device
cabinet
power
variable frequency
Prior art date
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PCT/CN2010/000951
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English (en)
French (fr)
Inventor
包起帆
Original Assignee
Bao Qifan
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Publication date
Application filed by Bao Qifan filed Critical Bao Qifan
Priority to EP10801845.8A priority Critical patent/EP2458724A4/en
Publication of WO2011009285A1 publication Critical patent/WO2011009285A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J3/00—Driving of auxiliaries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/34—Arrangements for transfer of electric power between networks of substantially different frequency
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J3/00—Driving of auxiliaries
    • B63J3/04—Driving of auxiliaries from power plant other than propulsion power plant
    • B63J2003/043—Driving of auxiliaries from power plant other than propulsion power plant using shore connectors for electric power supply from shore-borne mains, or other electric energy sources external to the vessel, e.g. for docked, or moored vessels
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • H02J2310/42—The network being an on-board power network, i.e. within a vehicle for ships or vessels

Definitions

  • the present invention relates to a power supply device for a port ship, and more particularly to a mobile shore power variable frequency power supply device that converts power from the land and supplies power to a ship in the port.
  • Shore power has different names in recent years, such as Onshore Power Supply (OPS), Shore-side electricity, Shore-connected electricity supply, Shore power, Ship-to-shore, Cold ironing, Alternative Maritime Power (AMP), It means that the ship is stopped during porting. The ship generator is switched to the shore power supply, and the shore power of the port area (dock) supplies power to the electrical equipment on the ship through the connecting cable and the ship's shore power box. The emission of waste gas from power plants is much lower than that of diesel engines. The access of shore vessels to shore power is an effective way to reduce emissions from ports and even reduce emissions from urban areas. Shore power technology is also an effective measure for port energy conservation and flooding.
  • OPS Onshore Power Supply
  • AMP Alternative Maritime Power
  • the present invention provides a shore power frequency conversion power supply device, which utilizes high power frequency conversion technology to realize 50 Hz shore power to power a 60 Hz ship to stop power supply, and effectively solves the problem of using shore power to power a ship. Because of the inconsistency of the frequency, and the variable frequency power supply unit can be moved as needed, it is convenient for use.
  • the invention is solved by the following technical solutions: A movable shore power frequency conversion power supply device, comprising an onshore power supply box, a shipboard power receiving system, and a variable frequency power supply device, wherein the input end is connected to the shore power supply box through a cable, and the output is output.
  • the end is connected to a cable reel by a cable, and the input power of the variable frequency power supply device is frequency-converted and outputted to the cable reel;
  • the cable reel has at least one low-voltage reel with a plurality of cables.
  • a plurality of plugs through which the cable is inserted The head is connected to the ship's power receiving system.
  • variable frequency power supply device of the present invention comprises a high voltage switch and a transformer cabinet, a low voltage incoming switchgear, a rectifier cabinet, a rectifier cabinet 2, a inverter cabinet, an output transformer cabinet and an output switch. cabinet.
  • variable frequency power supply device comprises a high voltage switch and a transformer cabinet connected in sequence, a low voltage incoming switchgear cabinet, a rectifier cabinet, a rectifier cabinet 2, a inverter cabinet 1, a inverter cabinet 2, an output transformer Cabinet and output switch cabinet.
  • the number of low-voltage reels and plugs of the cable is nine; and the input power of the variable-frequency power supply unit is 10 kV/50 Hz.
  • the shore power technology utilized by the present invention is an effective way for port emission reduction and even urban waste gas emission reduction, and shore power technology is also an effective measure for port energy saving and lowering, and the invention adopts a movable variable frequency power supply device.
  • the power supply of the land can be frequency-converted to supply power to the vessels in the port, which effectively solves the trouble caused by the frequency inconsistency when using the shore power to supply power to the ship.
  • FIG. 1 is a schematic structural view of a movable shore power frequency conversion power supply device according to the present invention: In the figure: 1, a variable frequency power supply device; 2, a cable drum box; 3, a shipboard power receiving system; 4, an onshore power supply box
  • 2A and 2B are single line diagrams of a variable frequency power source having a shore power supply capacity of 2000 kVA according to an embodiment of the present invention
  • 3A and 3B are single line diagrams of a variable frequency power supply having a shore power supply capacity of 500 KVA according to an embodiment of the present invention. detailed description
  • a movable shore power frequency conversion power supply device comprises an onshore power supply box 4 , a shipboard power receiving system 3 , and a variable frequency power supply device 1 , the input end of which is connected to the shore power supply box 4 through a cable.
  • the output end is connected to a cable drum box 2 through a cable, and the input power of the variable frequency power supply device 1 is frequency-converted and outputted to the cable drum box 2, in this embodiment, the input power of the variable frequency power supply device 1 is 10 kV/50 Hz;
  • the cable drum box 2 has at least one low-pressure reel with a plurality of cables and a plurality of plugs which are connected to the onboard power receiving system 3 via respective plugs.
  • variable frequency power supply device 1 firstly steps down the operating voltage of the inverter in the variable frequency power supply device through 10kV/720V, and then converts the frequency by 50Hz/60Hz, and then converts the voltage to 660V/460V to output a voltage of 440V.
  • connection between the variable frequency power supply unit 1 and the onshore power supply box and the cable drum box, and the connection between the cable drum box and the onboard power receiving system are both Use 9 cables to connect.
  • the variable frequency power supply unit mainly includes input/output switch cabinets, high voltage transformer cabinets, frequency converter cabinets, output transformer cabinets, etc. Except for the inverters, other components are passive components, which have high reliability and stability.
  • the high voltage transformer is placed in the shielding box to achieve magnetic coupling between the inside and outside of the transformer.
  • the high-voltage transformer selects a three-winding transformer, in which one set of windings is used as the primary winding, and the other two sets of windings serve as secondary windings, and output power to the frequency conversion device.
  • the high-voltage winding is a delta connection, the secondary winding is connected by a star and the center point is taken out, and the other is a delta connection with a mutual electrical angle of 30 degrees.
  • the advantage of this circuit is that the number of pulses of the rectifier circuit is increased from 6 pulses to 12 pulses, and the 5th, 7th, 17th, 19th, and .th. harmonics generated by the two rectifier bridges cancel each other out.
  • the input/output switch uses an air circuit breaker for protection against overload, overcurrent and short circuit.
  • the input EMI filter is mainly used to control and guarantee the grid power quality of the input inverter.
  • the frequency converter cabinet contains the inverter and harmonic suppressor.
  • the inverter can be selected from NXP series 690V class or 500V class 12 pulse rectifier inverter manufactured by Vacon of Finland.
  • the sine wave filter is mainly composed of a filter capacitor, a filter reactor, a non-inductive resistor, a control protection system, etc., and is connected in parallel with the harmonic source, and is designed according to the composition and size of the harmonic current and the reactive power requirement of the system.
  • the device provides a low impedance path to the harmonics, and most of the harmonic current flows into the filtering device to prevent it from flowing into the grid, reducing the distortion of the grid.
  • Epoxy resin is used to cast high quality low short-circuit impedance dry-type transformer with insulation class H.
  • the transformer is specially designed for variable frequency power supply equipment. It has low short circuit impedance, low loss, low heat generation and high efficiency.
  • the silicon steel sheet is made of 0.3 mm high magnetic grain oriented silicon steel sheet.
  • the dry isolation transformer increases the safety of electricity consumption and prevents interference from the power grid, and can effectively prevent mutual interference between the load grid and the shore power grid on the ship, and also protect the variable frequency power supply device. It will not be damaged due to the failure of the load equipment.
  • the design of the shore power supply capacity of 2000kVA and 500KVA can be designed:
  • Fig. 2A and 2B it is a single line diagram of 2000kVA variable frequency power supply, including high voltage switch and transformer cabinet, low voltage incoming switchgear, rectifier cabinet one, rectifier cabinet II, inverter cabinet one, and inverter cabinet II. Output transformer cabinet and output switch cabinet.
  • FIG. 3A and 3B it is a single-line diagram of a 500KVA variable frequency power supply, including a high voltage switch and transformer cabinet, a low voltage incoming switchgear, a rectifier cabinet, a rectifier cabinet 2, a inverter cabinet, an output transformer cabinet, and an output switch. cabinet.
  • the frequency conversion module uses a 690V class 12-pulse rectifier inverter, so the output voltage of the high-voltage transformer is 690V, and the rated output of the inverter module.
  • the voltage is 670V
  • the output transformer has buck and isolation function
  • the input voltage of the output transformer is 670V
  • the output voltage is 460V.
  • the 500KVA solution uses a 500V class 12-pulse rectifier inverter, and the transformer is an isolation transformer.

Description

一种可移动式岸电变频供电装置 技术领域
本发明涉及港口船舶的供电装置， 具体地说， 是一种将陆地的电 源变频后对靠港船舶进行供电的可移动的岸电变频供电装置。
背景技术
全球石油资源日渐枯竭， 世界各国对环保、 节能、 低耗要求不断 提高，国家在 "十一五"规划中明确提出节能降耗和污染减排的目标， 港口节能减排具有非常重要的战略意义。上海港是当今世界集装箱吞 吐量最大的港口之一， 很多港区都集中在市区， 随着国际航运中心的 建设，越来越多的船舶停靠在上海港， 到港船舶停靠港口产生污染与 中心城区环境保护的矛盾已经越来越突出。同时，开展节能创新工作、 降低运营成本也是企业自身发展的需要。
大型船舶特别是油船和集装箱船靠港时通常使用燃油制品（多为 重油、 柴油）发电， 来满足船舶用电需求。 重油和柴油在燃烧过程中 产生大量硫化物和氮氧化物， 对周边环境造成污染， 船舶使用发电机 和柴油机产生的噪声也会对环境造成污染。 目前， 国际一些先进港口 已经采用陆地的电源对靠港船舶供电， 这种对船舶供电的方式称为
"岸电技术"。 岸电在近些年里有不同的名称， 例如 Onshore Power Supply (OPS) ， Shore-side electricity， Shore-connected electricity supply, Shore power, Ship-to-shore, Cold ironing, Alternative Maritime Power (AMP)， 都是指船舶靠港期间停止使用 船舶发电机而改用岸电电源供电，港区 (码头）的岸电通过连接电缆和 船舶上岸电箱对船舶上的电气设备供电。发电厂的废气排放远低于柴 油机的废气排放， 靠港船舶接入岸电是港口减排， 乃至城市废气减排 的有效途径， 岸电技术是还是港口节能降躁的有效措施。
目前世界上己有岸电项目有 60Hz港口电网向 60Hz船舶电网直接 供电 （美国） ， 50Hz港口电网向 50Hz船舶电网直接供电 （欧洲） ， 但都不涉及变频技术。 国外船舶电网频率大多为 60Hz， 我国港口岸 电电网频率为 50HZ， 所以， 研制适合我国电制的岸电变频技术， 将 我国港口电网交流电变换成适合于外国船舶 60Hz交流电， 并且实现 50Hz/60Hz双频供电十分必要。
发明内容
为解决现有技术存在的上述问题，本发明提出一种岸电变频供电 装置，其利用大功率变频技术实现了 50Hz岸电对 60Hz船舶停港供电， 有效解决了利用岸电对船舶供电时的因为频率不一致带来的麻烦，并 且可根据需要移动其中的变频电源装置， 给使用带来方便。 本发明通过以下技术方案予以解决： 一种可移动式岸电变频供电装置， 包括岸上供电电箱， 船上受 电系统，还包括一变频电源装置， 其输入端通过电缆连接岸上供电电 箱， 输出端通过电缆与一电缆卷筒箱连接， 将所述变频电源装置的输 入电源变频变压后输出到所述电缆卷筒箱；所述电缆卷筒箱具至少一 个带若干根电缆的低压卷筒和若干个插头，所述电缆通过所述相应插 头与船上受电系统连接。
作为本发明的一个优选实施例， 本发明所述变频电源装置包括 依次连接的高压开关及变压器柜、低压进线开关柜、 整流柜一、整流 柜二、 逆变柜、 输出变压器柜及输出开关柜。
作为本发明的一个优选实施例，所述变频电源装置包括依次连接 的高压开关及变压器柜、 低压进线开关柜、 整流柜一、 整流柜二、 逆 变柜一、 逆变柜二、 输出变压器柜及输出开关柜。
作为本发明的一个优选实施例，所述电缆的低压卷筒和插头的个 数为 9个； 所述变频电源装置的输入电源为 10KV/50HZ。
由于采用以上技术方案， 本发明利用的岸电技术是港口减排， 乃 至城市废气减排的有效途径， 岸电技术还是港口节能降躁的有效措 施，且本发明采用可移动式的变频电源装置可将陆地的电源变频后对 靠港船舶进行供电，有效解决了利用岸电对船舶供电时因为频率不一 致带来的麻烦。
附图说明
图 1是本发明一种可移动式岸电变频供电装置的结构示意图： 图中： 1， 变频电源装置； 2， 电缆卷筒箱； 3， 船上受电系统； 4, 岸上供电电箱
图 2A、 2B为本发明一实施例岸电电源容量为 2000kVA的变频电 源单线图；
图 3A、 3B为本发明一实施例岸电电源容量为 500KVA的变频电源 单线图。 具体实施方式
下面结合附图和实施例对本发明作进一步描述：
如图 1所示，一种可移动式岸电变频供电装置，包括岸上供电电 箱 4， 船上受电系统 3， 还包括一变频电源装置 1， 其输入端通过电 缆连接岸上供电电箱 4， 输出端通过电缆与一电缆卷筒箱 2连接， 将 变频电源装置 1的输入电源变频变压后输出到电缆卷筒箱 2, 本实施 例中， 变频电源装置 1的输入电源为 10kV/50Hz; 电缆卷筒箱 2具至 少一个带若干根电缆的低压卷筒和若干个插头，电缆通过相应插头与 船上受电系统 3连接。
本实施例中，变频电源装置 1先通过 10kV/720V降压到变频电源 装置中的变频器的工作电压， 然后 50Hz/60Hz变频， 然后 660V/460V 变压， 输出 440V的电压。
由于采用低压 440V对船舶供电， 电流很大， 本实施例中变频电 源装置 1和岸上供电电箱、电缆卷筒箱之间的连接，及电缆卷筒箱和 船上受电系统之间的连接均使用 9根电缆连接。
变频电源装置主要包括输入 /输出开关柜、 高压变压器柜、 变频 器柜、输出变压器柜等， 除变频器外， 其他部件都采用无源器件， 具 有极高的可靠性和稳定性。
1 ) 高压变压器柜
采用中电电气高压变压器。 高压变压器放在屏蔽盒内达到隔断变 压器内外的磁场耦合作用。高压变压器选择三绕组变压器，其中一套 绕组做为原绕组， 另外两套绕组作为副绕组， 向变频装置输出功率。 高压绕组是三角形接法，副绕组一个星形接法且中心点引出，另一个 是三角形接法， 互差 30 电角度。 这种电路的优点是把整流电路的脉 冲数由 6脉冲提高到 12脉冲， 两个整流桥产生的 5、 7、 17、 19、 . . . 次谐波相互抵消。
2)输入 /输出开关柜
输入 /输出开关采用空气断路器， 用于过载、 过流和短路的保护。 输入 EMI滤波器主要用于控制和保证输入变频器的电网电能质量。
3) 变频器柜
变频器柜内包含变频器和谐波抑制器。 变频器可选用芬兰 Vacon 公司生产的 NXP系列 690V级或者 500V级别 12脉冲整流逆变器。
正弦波滤波器主要由滤波电容器、 滤波电抗器、 无感电阻、 控制 保护系统等组合而成， 与谐波源并联， 根据谐波电流的成份、大小及 系统的无功需求情况进行设计， 使得装置向谐波提供一个低阻抗通 道， 大部分谐波电流流入滤波装置， 避免其流入电网， 使电网的畸变 减小。
4) 输出变压器柜
选用环氧树脂浇注高质量低短路阻抗干式变压器， 绝缘级别为 H 级， 该变压器专为变频电源设备特殊设计。具有较低短路阻抗、低损 耗、低发热量及高效率特性。硅钢片采用 0. 3mm高导磁晶粒取向硅钢 片。干式隔离变压器增加用电安全和防止来自电网的干扰， 能有效地 防止船上负载电网和岸电电网的相互干扰，同时也保护变频电源装置 不会由于负载设备地故障而造成损坏。
考虑到成本、码头供电能力以及集装箱空间要求， 可设计岸电电 源容量为 2000kVA和 500KVA的实施例：
如图 2A、 2B所示， 其为 2000kVA变频电源单线图， 包括依次连 接的高压开关及变压器柜、 低压进线开关柜、 整流柜一、 整流柜二、 逆变柜一、 逆变柜二、 输出变压器柜及输出开关柜。
如图 3A、 3B所示， 其为 500KVA变频电源单线图， 包括依次连 接的高压开关及变压器柜、 低压进线开关柜、 整流柜一、 整流柜二、 逆变柜、 输出变压器柜及输出开关柜。
由于功率不同， 系统性能不同， 选用不同降压、 整流和逆变元器 件， 2000KVA方案中， 变频模块选用 690V级别 12脉冲整流逆变器， 所 以高压变压器的输出电压为 690V, 变频模块的额定输出电压为 670V, 输出变压器有降压和隔离功能， 输出变压器的输入电压为 670V, 输出 电压为 460V。 500KVA方案选用 500V级别 12脉冲整流逆变器，变压器为 隔离变压器。
但是， 上述的具体实施方式只是示例性的， 是为了更好的使本领 域技术人员能够理解本专利， 不能理解为是对本专利包括范围的限 制； 只要是根据本专利所揭示精神的所作的任何等同变更或修饰，均 落入本专利包括的范围。

Claims

权 利 要 求 、 一种可移动式岸电变频供电装置， 包括岸上供电电箱， 船 上受电系统， 其特征在于： 还包括一变频电源装置， 其输 入端通过电缆连接岸上供电电箱， 输出端通过电缆与一电 缆卷筒箱连接， 将所述变频电源装置的输入电源变频变压 后输出到所述电缆卷筒箱； 所述电缆卷筒箱具至少一个带 若干根电缆的低压卷筒和若干个插头， 所述电缆通过所述 相应插头与船上受电系统连接。
、 根据权利要求 1所述的一种可移动式岸电变频供电装置， 其特征在于： 所述变频电源装置包括依次连接的高压开关 及变压器柜、 低压进线开关柜、 整流柜一、 整流柜二、 逆 变柜、 输出变压器柜及输出开关柜。
、 根据权利要求 1所述的一种可移动式岸电变频供电装置， 其特征在于： 所述变频电源装置包括依次连接的高压开关 及变压器柜、 低压进线开关柜、 整流柜一、 整流柜二、 逆 变柜一、 逆变柜二、 输出变压器柜及输出开关柜。
、 根据权利要求 2或 3所述的一种可移动式岸电变频供电装 置， 其特征在于： 所述电缆的低压卷筒和插头的个数为 9 个。
、 根据权利要求 4所述的一种可移动式岸电变频供电装置， 其特征在于:所述变频电源装置的输入电源为 10KV/50HZ。
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