WO2016091120A1 - 中压双电源自动切换装置 - Google Patents

中压双电源自动切换装置 Download PDF

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WO2016091120A1
WO2016091120A1 PCT/CN2015/096401 CN2015096401W WO2016091120A1 WO 2016091120 A1 WO2016091120 A1 WO 2016091120A1 CN 2015096401 W CN2015096401 W CN 2015096401W WO 2016091120 A1 WO2016091120 A1 WO 2016091120A1
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module
switching device
power
automatic switching
voltage
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PCT/CN2015/096401
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English (en)
French (fr)
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汪鑫
焦孟
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美登思电气(上海)有限公司
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Priority to US15/534,479 priority Critical patent/US20170353050A1/en
Publication of WO2016091120A1 publication Critical patent/WO2016091120A1/zh

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems

Definitions

  • the invention relates to a power switching device, in particular to a medium voltage dual power automatic switching device of 3kV to 35kV.
  • Emergency power is the power source used in today's important buildings for emergency lighting, accident lighting and fire protection facilities, providing emergency power in emergency situations.
  • the "Code for Electrical Design of Civil Buildings" clearly states that the primary load should be supplied by two power sources. When one power supply fails, the other power supply should not be damaged; the primary load power supply has two high-voltage power supplies and one high-voltage power supply. Power supply and one-way low-voltage power supply, diesel generator set and battery pack; especially important loads in the primary load, in addition to the above two power supplies, emergency power must be added.
  • EPS Emergency Power Supply
  • UPS Uninterruptible Power Supply
  • self-contained emergency diesel generator set self-contained emergency diesel generator set
  • dedicated feeder line with automatic input device independent of normal power supply
  • self-provided emergency Gas turbine generator set self-provided emergency Gas turbine generator set.
  • the medium voltage dual power automatic switching device is mainly used in the emergency power supply system, and is used to switch the load circuit from the common power source to the emergency power source when the common power source is under voltage, voltage loss or power failure, and the load circuit is taken when the common power source returns to normal.
  • the emergency power supply is switched to a common power source to ensure continuous and reliable operation of critical loads.
  • the existing medium voltage dual power automatic switching device can only collect the voltage signals of the two power sources of the common power source and the emergency power source, and has up to six voltage input measurement channels, and has no expansion capability.
  • the technical problem to be solved by the present invention is to overcome the defects that the voltage input measuring channel of the dual-power automatic switching device in the prior art has few voltage input measuring channels and can only collect voltage signals, and provides a voltage input channel that can be expanded and can not only collect voltage signals.
  • a medium voltage dual power automatic switching device is characterized in that it comprises an input module, an acquisition module, a communication module, an output module and a power module, and the acquisition module comprises a plurality of voltage input channels and a plurality of current input channels ;
  • the input module is configured to receive a first switch quantity signal
  • the acquisition module is configured to collect information
  • the information includes a voltage, a frequency, and a current
  • the output module is configured to output a second switch quantity signal
  • the communication module is used to perform an external device
  • the power module is configured to supply power to the input module, the acquisition module, the communication module, and the output module.
  • the input module is configured to receive a first switch quantity signal, and the input module is electrically connected to an external switch device, and the first switch quantity signal is used to represent an on/off state of the external switch device.
  • the medium voltage dual power automatic switching device of the invention is electrically connected with a common power source, an emergency power source or other power source, and the collecting module is configured to collect voltage information and frequency information of the power source, and is also used for automatically switching the medium voltage dual power source of the invention. Current information in the load circuit to which the device is electrically connected.
  • the medium voltage dual power automatic switching device further comprises a touch screen for communicating with the communication module.
  • the touch screen is a color touch screen.
  • the color touch screen communicates with the communication module in the medium voltage dual power automatic switching device, the color touch screen is used to process information of the signal collected by the acquisition module through graphic display, such as voltage, frequency and current. .
  • the user can also view the working log of the medium voltage dual power automatic switching device through the touch screen, that is, the voltage information of the power source collected by the medium voltage dual power automatic switching device at a certain time, and the switching power supply operation made at a certain time.
  • the communication module has a communication interface.
  • the communication interface in this solution can be one, can be multiple, and all support IEC61850 standard protocol, and IEC61850 standard is based on universal network communication. The only international standard for the substation automation system of the letter platform.
  • the communication interface is an RJ-45 Ethernet interface.
  • the communication interface is an RS485 serial interface.
  • the input module, the acquisition module, the communication module, the output module and the power module are all located on the same bottom plate.
  • the acquisition module includes at least six voltage input channels and at least six current input channels.
  • the number of voltage input channels in the acquisition module can be expanded to sixty, and the number of current input channels can be expanded to sixty.
  • the voltage input channel of the solution can be expanded to 60, and the current input channel can be expanded to 60, and the application range is wide.
  • the information further includes active power, reactive power, and/or apparent power.
  • the information also includes a power factor.
  • the positive progress of the invention is that compared with the existing medium voltage dual power automatic switching device, the invention can not only measure the voltage signal, but also measure the current signal, and has the expandable voltage input channel and the current input channel, and the touch screen can also The collected information is graphically displayed, which is straightforward.
  • FIG. 1 is a structural block diagram of a medium voltage dual power automatic switching device according to an embodiment of the present invention.
  • the structure of the medium voltage dual power automatic switching device is as shown in FIG. 1 , and includes an input module 11 , an acquisition module 12 , an output module 13 , a control and communication module 14 , a power module 15 , and a touch screen 16 .
  • the acquisition module 12 includes 60 voltage input channels 21 .
  • the control and communication module 14 includes a control module 41 and a communication module 42, wherein the communication module 42 is provided with an RJ-45 Ethernet interface and an RS485 serial interface.
  • the power module 15 is used to supply power to the input module 11, the acquisition module 12, the control and communication module 14, and the output module 14.
  • the input module 11, the acquisition module 12, the output module 13, the control and communication module 14, and the power module 15 are all located on the same bottom plate.
  • the input module 11 is configured to receive the first switch quantity signal and transmit the first switch quantity signal to the control module 41 in the medium voltage dual power automatic switching device of the embodiment through the bottom plate, and the voltage input channel 21 is configured to collect voltage information.
  • the current input channel 22 is configured to collect current information, and the collecting module 12 transmits the collected voltage information and current information to the control module 41 through the bottom plate, and the control module 41 signals the first switch quantity, the voltage information and the current information.
  • the communication module 42 is configured to owe the power supply
  • the information of the pressure state is transmitted to the touch screen 16 or other external device, the touch screen 16 is used to display the information by means of a graphic manner, and the output module 13 is configured to output a second switching quantity signal for switching the power source to ensure the normal operation of the load circuit.
  • the control module can calculate the active power, the reactive power, the apparent power and the power factor according to the voltage information and the current information, and the control module can also perform real-time communication with the communication module, and the communication module is used for
  • the method displays the real-time voltage value of the power supply or the real-time current value of the load circuit, and the user can visually observe the trend of these voltage values or current values.
  • the acquisition module can also process the collected voltage information and current information, and transmit the processed information to the control module, and the control module processes the first switch quantity signal and the information processed by the acquisition module.
  • the voltage value collected by the acquisition module ranges from 0 to 120 V
  • the collected current value ranges from 0 to 10 A.
  • the input module, the acquisition module, the control and communication module, the output module, and the power module in the dual-power automatic switching device may be one module or multiple modules, and the input module and the output module may also be combined into one module.

Abstract

一种中压双电源自动切换装置,包括一输入模块(11)、一采集模块(12)、一控制及通讯模块(14)、一输出模块(13)以及一电源模块(15),该采集模块包括多个电压输入通道(21)和多个电流输入通道(22);该输入模块用于接收第一开关量信号,该采集模块用于采集信息,该信息包括电压、频率和电流,该输出模块用于输出第二开关量信号,该通讯模块用于与外部设备进行通讯,该电源模块用于向该输入模块、该采集模块、该通讯模块以及该输出模块供电。该切换装置不仅能测量电压信号,还能测量电流信号,同时具有可扩展电压输入通道和电流输入通道,触摸屏还能将采集到的信息用图形显示出来,直观明了。

Description

中压双电源自动切换装置
本申请要求申请日为2014年12月09日的中国专利申请CN201420771155.0的优先权。本申请引用上述中国专利申请的全文。
技术领域
本发明涉及电源切换装置,特别涉及一种3kV~35kV的中压双电源自动切换装置。
背景技术
应急电源是当今重要建筑物中为了应急照明、事故照明和消防设施等而采用的电源,能够在应急状态下提供紧急供电。《民用建筑电气设计规范》中明确规定:一级负荷应由两个电源供电,当一个电源发生故障时,另一个电源应不致受到损坏;一级负荷的电源形式有二路高压电源和一路高压电源及一路低压电源、柴油发电机组和蓄电池组;一级负荷中特别重要的负荷除上述两个电源外,还必须增设应急电源。常用的应急电源有:EPS(Emergency Power Supply)应急电源、UPS(Uninterruptible Power Supply)不间断电源、自备应急柴油发电机组、有自动投入装置的独立于正常电源的专用馈电线路以及自备应急燃气轮发电机组。
中压双电源自动切换装置主要用在紧急供电系统,用于当常用电源欠压、失压或者断电的时候将负载电路从常用电源切换至应急电源,当常用电源恢复正常时将负载电路从应急电源切换至常用电源,以确保重要负荷连续、可靠地运行。现有的中压双电源自动切换装置仅能采集常用电源和应急电源两路电源的电压信号,最多有六个电压输入测量通道,而且不具有扩展能力。
发明内容
本发明要解决的技术问题是为了克服现有技术中压双电源自动切换装置的电压输入测量通道少、仅能采集电压信号的缺陷,提供一种电压输入通道可扩展、不仅能采集电压信号还能采集电流信号的中压双电源自动切换装置。
本发明是通过下述技术方案来解决上述技术问题:
一种中压双电源自动切换装置,其特点在于,包括一输入模块、一采集模块、一通讯模块、一输出模块以及一电源模块,该采集模块包括多个电压输入通道和多个电流输入通道;
该输入模块用于接收第一开关量信号,该采集模块用于采集信息,该信息包括电压、频率和电流,该输出模块用于输出第二开关量信号,该通讯模块用于与外部设备进行通讯,该电源模块用于向该输入模块、该采集模块、该通讯模块以及该输出模块供电。
本方案中,输入模块用于接收第一开关量信号,该输入模块与外部开关装置电连接,该第一开关量信号用于表征该外部开关装置的通断状态。本发明的中压双电源自动切换装置与常用电源、应急电源或者其它电源电连接,采集模块用于采集上述电源的电压信息和频率信息,还用于采集与本发明的中压双电源自动切换装置电连接的负载电路中的电流信息。
较佳地,该中压双电源自动切换装置还包括一触摸屏,该触摸屏用于与该通讯模块进行通讯。触摸屏为彩色触摸屏,当该彩色触摸屏与中压双电源自动切换装置中的通讯模块进行通讯时,该彩色触摸屏用于将采集模块采集到的信号的信息通过图形显示处理,例如电压、频率和电流。用户还可以通过触摸屏查看中压双电源自动切换装置的工作日志,即该中压双电源自动切换装置在某一时间采集到的电源的电压信息,以及在某一时间作出的切换电源操作等。
较佳地,该通讯模块内设一通讯接口。本方案中的通讯接口可以为一个,可以为多个,均支持IEC61850标准协议,IEC61850标准是基于通用网络通 信平台的变电站自动化系统的唯一国际标准。
较佳地,该通讯接口为RJ-45以太网接口。
较佳地,该通讯接口为RS485串行接口。
较佳地,该输入模块、该采集模块、该通讯模块、该输出模块以及该电源模块均位于同一底板上。
较佳地,该采集模块包括至少六个电压输入通道和至少六个电流输入通道。
较佳地,该采集模块中电压输入通道的数量可扩展至六十个,电流输入通道的数量可扩展至六十个。本方案的电压输入通道可扩展到60个,电流输入通道可扩展到60个,应用范围广泛。
较佳地,该信息还包括有功功率、无功功率和/或视在功率。
较佳地,该信息还包括功率因数。
本发明的积极进步效果在于:与现有中压双电源自动切换装置相比,本发明不仅能测量电压信号,还能测量电流信号,同时具有可扩展电压输入通道和电流输入通道,触摸屏还能将采集到的信息用图形显示出来,直观明了。
附图说明
图1为本发明实施例的中压双电源自动切换装置的结构框图。
具体实施方式
下面举个较佳实施例,并结合附图来更清楚完整地说明本发明。
中压双电源自动切换装置结构如图1所示,包括输入模块11、采集模块12、输出模块13、控制及通讯模块14、电源模块15以及触摸屏16,采集模块12包括60个电压输入通道21和60个电流输入通道22,控制及通讯模块14包括控制模块41和通讯模块42,其中,通讯模块42内设RJ-45以太网接口和RS485串行接口。
电源模块15用于向输入模块11、采集模块12、控制及通讯模块14以及输出模块14供电。输入模块11、采集模块12、输出模块13、控制及通讯模块14以及电源模块15均位于同一底板上。
输入模块11用于接收第一开关量信号并通过该底板将该第一开关量信号传输至本实施例的中压双电源自动切换装置中的控制模块41,电压输入通道21用于采集电压信息,电流输入通道22用于采集电流信息,采集模块12通过该底板将采集到的电压信息和电流信息传输至控制模块41,控制模块41对该第一开关量信号、该些电压信息和电流信息进行分析、处理以及判断,例如电源的电压值小于正常值的75%时,判断该电源为欠压状态并传输一指令至通讯模块42和输出模块13,通讯模块42用于将该电源为欠压状态的信息传输至触摸屏16或其它外部设备,触摸屏16用于通过图形的方式将该信息显示出来,输出模块13用于输出第二开关量信号进行电源的切换,保证了负载电路的正常工作。其中,控制模块根据该些电压信息和电流信息可以计算出有功功率、无功功率、视在功率和功率因数等,控制模块还可以与该通讯模块进行实时通讯,该通讯模块用于通过图形的方式将电源的实时电压值或者负载电路的实时电流值等显示出来,用户可以直观明了地观察出这些电压值或者电流值等的趋势。另外,采集模块也可以对采集到的电压信息和电流信息进行处理,并将处理得到信息传输至控制模块,控制模块对第一开关量信号和采集模块处理的信息再进行处理。本实施例中采集模块采集的电压值范围为交流0~120V,采集的电流值范围为交流0~10A。
本实施例中压双电源自动切换装置中的输入模块、采集模块、控制及通讯模块、输出模块以及电源模块可以分别为一个模块或者多个模块,输入模块和输出模块也可以组合为一个模块。
虽然以上描述了本发明的具体实施方式,但是本领域的技术人员应当理解,这些仅是举例说明,在不背离本发明的原理和实质的前提下,可以对这些实施方式做出多种变更或修改。因此,本发明的保护范围由所附权利要求 书限定。

Claims (10)

  1. 一种中压双电源自动切换装置,其特征在于,包括一输入模块、一采集模块、一通讯模块、一输出模块以及一电源模块,该采集模块包括多个电压输入通道和多个电流输入通道;
    该输入模块用于接收第一开关量信号,该采集模块用于采集信息,该信息包括电压、频率和电流,该输出模块用于输出第二开关量信号,该通讯模块用于与外部设备进行通讯,该电源模块用于向该输入模块、该采集模块、该通讯模块以及该输出模块供电。
  2. 如权利要求1所述的中压双电源自动切换装置,其特征在于,该中压双电源自动切换装置还包括一触摸屏,该触摸屏用于与该通讯模块进行通讯。
  3. 如权利要求1-2中至少一项所述的中压双电源自动切换装置,其特征在于,该通讯模块内设一通讯接口。
  4. 如权利要求3所述的中压双电源自动切换装置,其特征在于,该通讯接口为RJ-45以太网接口。
  5. 如权利要求3所述的中压双电源自动切换装置,其特征在于,该通讯接口为RS485串行接口。
  6. 如权利要求1-5中至少一项所述的中压双电源自动切换装置,其特征在于,该输入模块、该采集模块、该通讯模块、该输出模块以及该电源模块均位于同一底板上。
  7. 如权利要求1-6中至少一项所述的中压双电源自动切换装置,其特征在于,该采集模块包括至少六个电压输入通道和至少六个电流输入通道。
  8. 如权利要求1-7中至少一项所述的中压双电源自动切换装置,其特征在于,该采集模块中电压输入通道的数量可扩展至六十个,电流输入通道的数量可扩展至六十个。
  9. 如权利要求1-8中至少一项所述的中压双电源自动切换装置,其特征在于,该信息还包括有功功率、无功功率和/或视在功率。
  10. 如权利要求1-9中至少一项所述的中压双电源自动切换装置,其特征在于,该信息还包括功率因数。
PCT/CN2015/096401 2014-12-09 2015-12-04 中压双电源自动切换装置 WO2016091120A1 (zh)

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US15/534,479 US20170353050A1 (en) 2014-12-09 2015-12-04 Automatic Medium-Voltage Dual-Power-Supply Switching Device

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CN201420771155.0U CN204290473U (zh) 2014-12-09 2014-12-09 中压双电源自动切换装置
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106655464A (zh) * 2016-10-14 2017-05-10 杭州鸿雁智能科技有限公司 一种双母线监控系统
CN111722142A (zh) * 2020-05-24 2020-09-29 苏州浪潮智能科技有限公司 一种服务器电源信号传输质量检测装置及方法
CN115173398A (zh) * 2022-06-21 2022-10-11 安徽斯凯奇电气科技有限公司 一种电压暂降治理装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204290473U (zh) * 2014-12-09 2015-04-22 美登思电气(上海)有限公司 中压双电源自动切换装置
CN104993576A (zh) * 2015-07-20 2015-10-21 上海致维自动化控制有限公司 双路电源自动转换开关控制器及方法
CN109343408B (zh) * 2018-10-30 2020-06-16 湖北窗口科技有限公司 强电网络智能管理系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2591841Y (zh) * 2002-12-16 2003-12-10 江苏省电力公司镇江供电公司 智能双电源切换装置
CN1534843A (zh) * 2003-04-02 2004-10-06 宁波宝鑫铁路信号设备制造有限公司 智能化铁路信号电源切换模块
JP2013106368A (ja) * 2011-11-10 2013-05-30 Toshiba Mitsubishi-Electric Industrial System Corp 電力変換装置
CN203119606U (zh) * 2013-01-30 2013-08-07 苏州飞腾电器有限公司 一种智能型双电源自动转换开关控制器
CN204290473U (zh) * 2014-12-09 2015-04-22 美登思电气(上海)有限公司 中压双电源自动切换装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7514815B2 (en) * 2004-09-28 2009-04-07 American Power Conversion Corporation System and method for allocating power to loads
WO2010141859A1 (en) * 2009-06-05 2010-12-09 Leviton Manufacturing Co., Inc. Smart grid over power line communication network
US8957546B2 (en) * 2012-07-10 2015-02-17 Nixon Power Services, Llc Electrical cogeneration system and method
US9577432B2 (en) * 2013-08-09 2017-02-21 The Boeing Company Advanced energy monitoring and control in a complex system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2591841Y (zh) * 2002-12-16 2003-12-10 江苏省电力公司镇江供电公司 智能双电源切换装置
CN1534843A (zh) * 2003-04-02 2004-10-06 宁波宝鑫铁路信号设备制造有限公司 智能化铁路信号电源切换模块
JP2013106368A (ja) * 2011-11-10 2013-05-30 Toshiba Mitsubishi-Electric Industrial System Corp 電力変換装置
CN203119606U (zh) * 2013-01-30 2013-08-07 苏州飞腾电器有限公司 一种智能型双电源自动转换开关控制器
CN204290473U (zh) * 2014-12-09 2015-04-22 美登思电气(上海)有限公司 中压双电源自动切换装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106655464A (zh) * 2016-10-14 2017-05-10 杭州鸿雁智能科技有限公司 一种双母线监控系统
CN111722142A (zh) * 2020-05-24 2020-09-29 苏州浪潮智能科技有限公司 一种服务器电源信号传输质量检测装置及方法
CN111722142B (zh) * 2020-05-24 2022-05-10 苏州浪潮智能科技有限公司 一种服务器电源信号传输质量检测装置及方法
CN115173398A (zh) * 2022-06-21 2022-10-11 安徽斯凯奇电气科技有限公司 一种电压暂降治理装置

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