CN201113483Y - Inverter backup power supply system - Google Patents
Inverter backup power supply system Download PDFInfo
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- CN201113483Y CN201113483Y CNU2007200915260U CN200720091526U CN201113483Y CN 201113483 Y CN201113483 Y CN 201113483Y CN U2007200915260 U CNU2007200915260 U CN U2007200915260U CN 200720091526 U CN200720091526 U CN 200720091526U CN 201113483 Y CN201113483 Y CN 201113483Y
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- 230000003068 static effect Effects 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims description 42
- 238000005259 measurement Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000003860 storage Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
Description
技术领域 technical field
本实用新型涉及一种变频器备用电源，可用于各企业生产流水线工艺装置中各类关键变频器以及所带变频调速电机，属于变频器备用电源技术领域。The utility model relates to a frequency converter backup power supply, which can be used for various key frequency converters and frequency conversion speed-regulating motors in the production line process devices of various enterprises, and belongs to the technical field of frequency converter backup power supplies.
背景技术 Background technique
目前，一些流水线生产的企业在关键工艺装置中安装变频调速电机来满足工艺要求，并且要求变频电机在市电电压大幅波动、瞬时停电情况下能正常不间断工作，往往采用双回路电源但操作停送电时间长无法满足工艺要求，或者采用UPS不间断电源费用高、维修困难。At present, some assembly line production enterprises install variable frequency speed regulating motors in key process devices to meet the process requirements, and require variable frequency motors to work normally and uninterruptedly in the case of large fluctuations in mains voltage and instantaneous power failures. The long time of power failure cannot meet the process requirements, or the cost of UPS uninterruptible power supply is high and maintenance is difficult.
发明内容 Contents of the invention
本实用新型的目的是发明一种变频器备用电源在市电电压大幅波动、瞬间停电的情况下能正常不间断工作，从而大幅度地减少停机造成的大量直接损失及间接损失。The purpose of this utility model is to invent a kind of inverter backup power supply that can work normally and uninterruptedly in the case of large fluctuations in mains voltage and instantaneous power failure, thereby greatly reducing a large number of direct losses and indirect losses caused by shutdown.
发明内容 Contents of the invention
本实用新型的目的就在于在市电电压大幅波动、瞬间停电的情况下能正常不间断工作，从而大幅度地减少停机造成的大量直接损失及间接损失，从而提供一种变频器备用供电系统。The purpose of this utility model is to work normally and uninterruptedly in the case of large fluctuations in mains voltage and instantaneous power failure, thereby greatly reducing a large number of direct losses and indirect losses caused by shutdown, thereby providing a backup power supply system for frequency converters.
本实用新型的目的可通过以下措施来实现：The purpose of this utility model can be achieved through the following measures:
本实用新型包括市电，它还包括变频器母线单元、SS静态开关单元、放电电流检测单元、高频充电控制器、蓄电池组、PLC、停电/电压闪落检测单元、市电电压检测单元、电机；其中，市电分别与变频器母线单元、高频充电控制器、停电/电压闪落检测单元和市电电压检测单元相连接；放电电流检测单元、高频充电控制器、及蓄电池组相互连接在一起，放电电流检测单元还连接到SS静态开关单元，放电电流检测单元、停电/电压闪落检测单元以及市电电压检测单元还分别连接到PLC，高频充电控制器与PLC为双向连接，变频器母线单元连接到电机。The utility model includes mains, which also includes frequency converter bus unit, SS static switch unit, discharge current detection unit, high-frequency charging controller, battery pack, PLC, power failure/voltage flashing detection unit, mains voltage detection unit, Motor; among them, the utility power is connected with the frequency converter bus unit, high-frequency charging controller, power failure/voltage flashing detection unit and mains voltage detection unit respectively; the discharge current detection unit, high-frequency charging controller, and battery pack are connected to each other Connected together, the discharge current detection unit is also connected to the SS static switch unit, the discharge current detection unit, the power failure/voltage flash detection unit and the mains voltage detection unit are respectively connected to the PLC, and the high-frequency charging controller and the PLC are bidirectionally connected , the inverter busbar unit is connected to the motor.
本实用新型中变频器备用供电系统还包括蓄电池电压检测单元，蓄电池电压检测单元一端分别与放电电流检测单元、高频充电控制器及蓄电池组相互连接在一起，蓄电池电压检测单元另一端连接到放PLC单元。蓄电池组选用HZB12系列12V-33一组电池组，40节蓄电池串连在一起。系统测控有二路独立的电源，一路为正常用电供电的交流市电，另一路位正常处于零负荷状态的直流供电母线电压经DC//DC模块供。The inverter backup power supply system in the utility model also includes a battery voltage detection unit, one end of the battery voltage detection unit is connected to the discharge current detection unit, the high-frequency charging controller and the battery pack, and the other end of the battery voltage detection unit is connected to the discharge current detection unit. PLC unit. The storage battery pack is a set of HZB12 series 12V-33 battery packs, and 40 batteries are connected in series. There are two independent power sources for system measurement and control, one is the AC mains for normal power supply, and the other is the DC power supply bus voltage that is normally in the zero-load state and is supplied by the DC//DC module.
本实用新型中蓄电池组选用HZB12系列12V-33一组电池组，40节蓄电池串连在一起。系统测控有二路独立的电源，一路为正常用电供电的交流市电，另一路位正常处于零负荷状态的直流供电母线电压经DC//DC模块供。In the utility model, the accumulator pack selects a group of HZB12 series 12V-33 battery packs, and 40 accumulators are connected in series. There are two independent power sources for system measurement and control, one is the AC mains for normal power supply, and the other is the DC power supply bus voltage that is normally in the zero-load state and is supplied by the DC//DC module.
本实用新型由于采用上述备用电源系统，使本实用新型具有如下优点：Because the utility model adopts the above-mentioned standby power supply system, the utility model has the following advantages:
1)操作程序简单，制作成本低；1) The operation procedure is simple and the production cost is low;
2)维护安全、方便。2) Safe and convenient maintenance.
3)选用不同的电池组容量可以控制多台电机功率。3) Selecting different battery capacity can control the power of multiple motors.
附图说明 Description of drawings
图1是本实用新型的直流供电系统原理图；Fig. 1 is a schematic diagram of the DC power supply system of the present utility model;
图2是本实用新型电网正常工作模式图；Fig. 2 is a diagram of the normal working mode of the power grid of the present utility model;
图3是本实用新型电网断电或闪电工作模式图；Fig. 3 is a diagram of the power grid power failure or lightning working mode of the utility model;
图4是本实用新型的电路原理框图。Fig. 4 is a block diagram of the circuit principle of the utility model.
具体实施方式 Detailed ways
本实用新型以下结合附图和实施例作以详细的描述：The utility model is described in detail below in conjunction with accompanying drawing and embodiment:
如图所示，本实用新型包括市电，它还包括变频器母线单元、SS静态开关单元、放电电流检测单元、高频充电控制器、蓄电池电压检测单元、蓄电池组、PLC、停电/电压闪落检测单元、市电电压检测单元、电机；其中，市电分别与变频器母线单元、高频充电控制器、停电/电压闪落检测单元和市电电压检测单元相连接；放电电流检测单元、高频充电控制器、蓄电池电压检测单元及蓄电池组相互连接在一起，放电电流检测单元还连接到SS静态开关单元，放电电流检测单元、蓄电池电压检测单元、停电/电压闪落检测单元以及市电电压检测单元还分别连接到PLC，高频充电控制器与PLC为双向连接，变频器母线单元连接到电机。蓄电池组选用HZB12系列12V-33一组电池组，40节蓄电池串连在一起。当然根据需要也可选择其他合适的电池组。系统测控有二路独立的电源，一路为正常用电供电的交流市电，另一路位正常处于零负荷状态的直流供电母线电压经DC//DC模块供。As shown in the figure, the utility model includes mains power, which also includes frequency converter bus unit, SS static switch unit, discharge current detection unit, high-frequency charging controller, battery voltage detection unit, battery pack, PLC, power failure/voltage flash drop detection unit, mains voltage detection unit, and motor; among them, the mains is respectively connected with the inverter bus unit, high-frequency charging controller, power failure/voltage flicker detection unit and mains voltage detection unit; the discharge current detection unit, The high-frequency charge controller, the battery voltage detection unit and the battery pack are connected together, the discharge current detection unit is also connected to the SS static switch unit, the discharge current detection unit, the battery voltage detection unit, the power failure/voltage flash detection unit and the mains The voltage detection units are also respectively connected to the PLC, the high-frequency charging controller is connected to the PLC in two directions, and the frequency converter bus unit is connected to the motor. The storage battery pack is a set of HZB12 series 12V-33 battery packs, and 40 batteries are connected in series. Of course, other suitable battery packs can also be selected according to needs. There are two independent power sources for system measurement and control, one is the AC mains for normal power supply, and the other is the DC power supply bus voltage that is normally in the zero-load state and is supplied by the DC//DC module.
具体地说：本实用新型的技术方案是一种备用电源，正常条件下系统的测控有二路独立的电源，一路有交流市电供电，正常运行系统由它供电，另一路有直流供电母线电压经DC\\DC模块供电，处于正常运行该系统处于零负荷状态。直流供电有四个系统组成；Specifically: the technical solution of the utility model is a backup power supply. Under normal conditions, the measurement and control of the system has two independent power supplies, one of which is powered by AC mains, and the normal operation system is powered by it, and the other has a DC power supply bus voltage. Powered by the DC\\DC module, the system is in a zero-load state during normal operation. The DC power supply consists of four systems;
1)蓄电池组系统的储能元件。1) The energy storage element of the battery pack system.
2)自动化智能充电及电池组管理系统。2) Automatic intelligent charging and battery pack management system.
3)系统测控。3) System measurement and control.
4)系统配电。4) System power distribution.
本实用新型根据变频器工作原理：交流变直流，直流变交流。将备用直流电源接到变频器中直流变交流系统。在直流供电系统运行时数个高频充电器并行向电池组实施浮充电，测控系统处以运行状态并在HMI上动态显示各参数和系统状态。当被保护的变频器投用时应先手动合是直流空气开关，变频器正常起动后向直流供电发出运行正常的回讯信号，系统测控接受后合上直流接触器，这时系统的SW，光电高速电压继电器同时运行，发生闪落、停电时SW导通，变频器由高电转入直流供电供电。当市电恢复供电时，测控系统会及时接受到光电高速继电器来电信号，在延时数秒后撤去SW导通指令、SW亦会自动检测到变频器上DC电压的恢复状态，当二者同时出现时，SW退出导通。从而达到变频器电机不间接断运行目的，满足工艺要求。The utility model is based on the working principle of the frequency converter: alternating current becomes direct current, and direct current becomes alternating current. Connect the backup DC power supply to the DC-to-AC system in the frequency converter. When the DC power supply system is running, several high-frequency chargers perform floating charging to the battery pack in parallel, and the measurement and control system is in the running state and dynamically displays various parameters and system status on the HMI. When the protected frequency converter is put into use, the DC air switch should be manually closed first. After the frequency converter starts normally, it will send a normal operation reply signal to the DC power supply. After the system measurement and control is accepted, close the DC contactor. The high-speed voltage relays operate at the same time, and the SW is turned on when flashing or power failure occurs, and the inverter is transferred from high-voltage to DC power supply. When the mains power supply is restored, the measurement and control system will receive the incoming signal of the photoelectric high-speed relay in time, and remove the SW conduction command after a few seconds of delay, and the SW will automatically detect the recovery state of the DC voltage on the inverter. , SW exits conduction. So as to achieve the purpose of continuous operation of the inverter motor and meet the process requirements.
当系统与较长停电时间，电池组的电压会随放电过程而下降并超出变频器保护电压值时，变频器低电压保护性停机，同时撤出变频器正常运行回讯，直流供电自动撤除该回路的支撑。由于变频器的保护电压高于电池组放电的终止电压，因此，电池组是安全的。When the system is out of power for a long time, the voltage of the battery pack will drop with the discharge process and exceed the protection voltage value of the inverter, the inverter will stop for low voltage protection, and at the same time withdraw the inverter for normal operation and reply, and the DC power supply will be automatically removed. loop support. Since the protection voltage of the frequency converter is higher than the discharge termination voltage of the battery pack, the battery pack is safe.
本实用新型的工作原理如下：本实用新型如图1所示，为一种直流供电变频系统原理图，所述的直流供电由蓄电池组、SS静态开关、控制测量系统组成。The working principle of the utility model is as follows: the utility model is shown in Figure 1, which is a schematic diagram of a DC power supply frequency conversion system, and the DC power supply is composed of a battery pack, SS static switch, and a control and measurement system.
蓄电池组选用HZB12系列12V-33一组电池组，40节蓄电池串连使用，采用自动化智能充电及电池管理系统。The battery pack is a set of HZB12 series 12V-33 batteries, 40 batteries are used in series, and an automatic intelligent charging and battery management system is adopted.
控制测量系统：测量市电电压、直流母线电压、充电电流、放电电流。精确到秒的闪落和停电记录(50条)电力恢复记录(50条)。SS静态开关内的被保护变频器电压检测，当超过设定的保护阈值时SS即时关闭。高速光电电压监测继电器监测市电电压，一旦出现低于设定阈值电压，即时发SS导通指令。静态电子开关做自动闪落投切。Control and measurement system: measure mains voltage, DC bus voltage, charging current, and discharging current. Flash down and power failure records (50 records) and power recovery records (50 records) accurate to the second. The voltage of the protected inverter in the SS static switch is detected, and the SS is immediately closed when the set protection threshold is exceeded. The high-speed photoelectric voltage monitoring relay monitors the mains voltage, once the voltage is lower than the set threshold voltage, it immediately sends an SS conduction command. Static electronic switch does automatic flash-off switching.
图2、图3所示，正常条件下系统测控有二路独立的电源，一路有交流市电供电，正常用电由它供电，另一路有直流供电母线电压经DC//DC模块供，正常处于零负荷状态。As shown in Figure 2 and Figure 3, under normal conditions, the system measurement and control has two independent power sources, one of which is powered by AC mains, and the normal power is supplied by it, and the other has a DC power supply bus voltage supplied by the DC//DC module, normally at zero load.
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2007200915260U CN201113483Y (en) | 2007-08-17 | 2007-08-17 | Inverter backup power supply system |
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| CNU2007200915260U CN201113483Y (en) | 2007-08-17 | 2007-08-17 | Inverter backup power supply system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624046A (en) * | 2012-02-23 | 2012-08-01 | 国彪电源集团有限公司 | Medium-voltage emergency power supply for guaranteeing charge by aid of boosting pulse |
| CN102624045A (en) * | 2012-02-23 | 2012-08-01 | 国彪电源集团有限公司 | Medium-voltage emergency power supply for guaranteeing charge by means of boosting and rectifying |
| CN103296641A (en) * | 2013-06-04 | 2013-09-11 | 中国电子科技集团公司第四十五研究所 | Power supply power-down protection device of motor driving system |
| WO2014019509A1 (en) * | 2012-07-31 | 2014-02-06 | 施耐德东芝换流器欧洲公司 | Motion and control system |
| CN108448999A (en) * | 2018-03-26 | 2018-08-24 | 浙江德欧电气技术有限公司 | A kind of driving control system for servo motor |
| CN115241966A (en) * | 2022-06-20 | 2022-10-25 | 北京百度网讯科技有限公司 | Frequency conversion control method, device and system |
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2007
- 2007-08-17 CN CNU2007200915260U patent/CN201113483Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624046A (en) * | 2012-02-23 | 2012-08-01 | 国彪电源集团有限公司 | Medium-voltage emergency power supply for guaranteeing charge by aid of boosting pulse |
| CN102624045A (en) * | 2012-02-23 | 2012-08-01 | 国彪电源集团有限公司 | Medium-voltage emergency power supply for guaranteeing charge by means of boosting and rectifying |
| CN102624045B (en) * | 2012-02-23 | 2014-12-17 | 国彪电源集团有限公司 | Medium-voltage emergency power supply for guaranteeing charge by means of boosting and rectifying |
| CN102624046B (en) * | 2012-02-23 | 2015-03-04 | 国彪电源集团有限公司 | Medium-voltage emergency power supply for guaranteeing charge by aid of boosting pulse |
| WO2014019509A1 (en) * | 2012-07-31 | 2014-02-06 | 施耐德东芝换流器欧洲公司 | Motion and control system |
| CN103580553A (en) * | 2012-07-31 | 2014-02-12 | 施耐德东芝换流器欧洲公司 | Movement and control system |
| CN103296641A (en) * | 2013-06-04 | 2013-09-11 | 中国电子科技集团公司第四十五研究所 | Power supply power-down protection device of motor driving system |
| CN108448999A (en) * | 2018-03-26 | 2018-08-24 | 浙江德欧电气技术有限公司 | A kind of driving control system for servo motor |
| CN115241966A (en) * | 2022-06-20 | 2022-10-25 | 北京百度网讯科技有限公司 | Frequency conversion control method, device and system |
| CN115241966B (en) * | 2022-06-20 | 2024-01-12 | 北京百度网讯科技有限公司 | Variable frequency control method, device and system |
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