CN101638199A - Integrated device having energy feedback and blackout emergent functions - Google Patents

Integrated device having energy feedback and blackout emergent functions Download PDF

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Publication number
CN101638199A
CN101638199A CN200810144729A CN200810144729A CN101638199A CN 101638199 A CN101638199 A CN 101638199A CN 200810144729 A CN200810144729 A CN 200810144729A CN 200810144729 A CN200810144729 A CN 200810144729A CN 101638199 A CN101638199 A CN 101638199A
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China
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grid
elevator
energy feedback
power
mode
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CN200810144729A
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Chinese (zh)
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古俊银
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INVOLAR Corporation Ltd.
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Shanghai Sikanya Electric Speed Control Equipment Co Ltd
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Priority to CN200810144729A priority Critical patent/CN101638199A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Control (AREA)

Abstract

An integrated device having energy feedback and blackout emergent functions is composed of an energy feedbacker, a storage battery controller and a storage battery (group). The energy feedbacker is based on the theory of active inversion phase width control, uses lock phase ring technology to track grid synchronization to determine inversion output voltage phase angle and amplitude as PWM controlamount, ensures to feedback electricity to the grid with unit power factor, and supplies electricity in an independent power generation manner when the grid is cut off. The storage battery controlleris based on separated DC/DC conversion to recharge the storage battery (group) and supply electricity to DC bus from the storage battery when the grid is cut off. The energy feedbacker begins to generate electricity within half cycle of blackout of the grid, for the elevator system, the power supply is no different from power supply of the grid. The invention has the following characteristics: 1.the increase of the system cost is small; 2. average system energy saving is over 30%; 3. system wiring is almost unchanged and reliability is not influenced; and 4. emergency security is vastly improved, and the elevator is more humane as a special device.

Description

The integrated apparatus of a kind of prodigiosin feedback and power failure emergency function
Technical field
The present invention relates to the integrated apparatus and the control method of a kind of prodigiosin feedback and power failure emergency function, belong to apparatus for controlling elevator and electric and electronic technical field.
Background technology
Present most elevators in the world when meeting with grid cut-off/fault, do not possess the automatic emergency function.Therefore, can only face following consequence: elevator runs out of steam, and mechanical forced band-type brake, elevator are followed huge strong shake and anxious stopping, and the passenger is stranded.The passenger is subjected to great menticide, and specific group (old, heart disease, pregnant woman etc.) even the critical life of meeting.We can say that the importance of elevator rescue apparatus during stoppage of power supply can be compared with the building fire-fighting system.
Yet existing emergency facility (seeing Fig. 1 and Fig. 2), employing be the mode of " useless at ordinary times, as to capture control during power failure ".Same small-sized apparatus for controlling elevator such as its device, when taking place to have a power failure, most function is provided, comprises driving main motor, logic control, band-type brake, the door machine, control of illumination etc., not only cost increases greatly, and will roll up and change original system and be electrically connected (generally at tens more than), this has also reduced the reliability of total system simultaneously.This prior art that increases considerably cost and significantly reduce reliability has limited the application of elevator emergency device widely.
Summary of the invention
The objective of the invention is at existing elevator device power consumption big, simultaneously at existing rescue apparatus during stoppage of power supply cost height, defective that reliability is low, a kind of brand new topological structure and control method have been proposed, control thought and structure with existing system " useless at ordinary times; as to have a power failure and capture control when meeting an urgent need ", be improved to " generating electricity by way of merging two or more grid systems independently generating during power failure at ordinary times ".Have following advantage:
1. system cost increases little;
2. energy saving of system is average more than 30%;
3. system wiring is almost constant, and reliability is unaffected;
4. emergent safety significantly promotes, and makes elevator have more humanistic care as special equipment, helps promoting construction of harmonious society;
The present invention is achieved through the following technical solutions:
Energy feedback device of the present invention is followed the tracks of synchronized based on the active inversion principle by PHASE-LOCKED LOOP PLL TECHNIQUE, and green phase width of cloth control principle is determined the phase angle and the amplitude of inverter output voltage, as the PWM controlling quantity, ensures to electrical network with the unity power factor feedback electric energy.Battery controller of the present invention is based on the DC/DC conversion of isolation or non-isolation.The present invention's detection of grid outage in the semiperiod is based on the software phase-lock loop technology of rotating coordinate transformation and model reference adaptive.
For apparatus for controlling elevator, if can ensure the three-phase supply regular power, then its controllable function just can complete realization.Energy feedback device begins generating in the grid cut-off half period, for elevator device, and this electrical source of power and mains supply and indistinction.Therefore, elevator device can switch to corresponding program smoothly, avoids resolving physical impact that surge brings and the psychological impact that the passenger is caused.
Device of the present invention and control method comprise topological structure, system operating mode conversion, and three parts of the instantaneous detection of grid cut-off.Wherein, topological structure is a core technology of the present invention.
Description of drawings
Fig. 1 is existing emergency facility mode of operation when the electrical network supply regular power;
Fig. 2 is existing emergency facility mode of operation when grid cut-off;
Fig. 3 is the lift energy feedback and the emergent integrated apparatus mode of operation when the electrical network supply regular power that has a power failure;
Fig. 4 is the lift energy feedback and the emergent integrated apparatus mode of operation when grid cut-off that has a power failure;
The specific embodiment
As shown in Figures 3 and 4, lift energy feedback comprises energy back feed device, storage battery and controller with the topology of the emergent integrated apparatus that has a power failure.
Battery controller can carry out in any moment of electrical network supply regular power the charging of storage battery (group).Consider the simple of control, then generally when elevator does not move, charge that the energy Flow direction is seen Fig. 3.
According to motor operating state, be without loss of generality, definition one, three quadrants are motoring condition, and are corresponding, two, four-quadrant is limited to generating state.
When motor operates in two, during four-quadrant, Udc increases, when Udc increases to a certain setting threshold values Ugm (such as in the 380V system, this threshold values can be made as 680V), when being Udc>=Ugm, energy back feed device is started working in the mode of generating electricity by way of merging two or more grid systems, and the energy Flow direction is: the rectifier bridge rectification → DC bus-bar voltage pump liter → energy back feed device active inversion → electrical network of load potential energy (braking kinetic energy) → electric power generation → be made of inverter inverse parallel diode.
When one, three quadrants, energy back feed device is not worked when motor moves.The energy Flow direction is: electrical network → elevator device.
When being illustrated in figure 4 as grid cut-off, the mode of operation of the lift energy feedback and the emergent integrated apparatus that has a power failure.Battery controller work, energy back feed device are with independent generation mode work, and this moment, the energy Flow direction was: storage battery (group) → DC/DC conversion → dc bus → energy feedback device passive inverter → elevator device.
Further, described system operating mode conversion specifies as follows:
Line voltage is sent into CPU and is handled by isolating op amp or the acquisition of sampling voltage transformer after filtering, obtain its D. C. value UG of equal value.DC bus-bar voltage then by isolating op amp or the acquisition of sampling voltage transformer, is made as UDC.As UDC>=1.15UG, and electrical network just often, starts energy back feed device, and make it to be in the mode of operation that is incorporated into the power networks.As UDC<1.15UG, then close energy back feed device.
When CPU detected grid cut-off, energy back feed device disconnected its normally closed contact, guaranteed that like this main contactor disconnects, and promptly electrical network and elevator device disconnect.Even the power system restoration power supply, contactless switch can adhesive yet.Then, energy back feed device transfers independent generation mode to.Whole process is no more than 10ms.According to the electrical design standard, 10ms time DC bus-bar voltage is fallen and generally is no more than 20%, and at this moment, various electronic machines also all maintain in the normal operation, thereby the power supply of elevator device realized uninterruptedly, so system can not produce impact.
Further, described outage detection specifies as follows:
3-2 conversion (Clarke) obtains the α of rest frame, the β component:
u ∂ = u A - 1 2 u B - 1 2 u C = 1 2 u A
u β = 3 2 u B - 3 2 u C
Obtain at ω through rotation transformation again 0Component under the rotating coordinate system:
u d=cosθ*u α+sinθ*u β
u q = cos θ * u ∂ + sin θ * u β
Work as u dAnd u qAll near zero the time, promptly can judge grid power blackout.

Claims (5)

1. the integrated apparatus and the mode thereof of elevator regenerated electric energy feedback grid and grid power blackout emergency source of electrical power.It is characterized in that, by energy feedback device, this device that battery pack and battery controller constitute, when the electrical network supply regular power, energy feedback device with the mode of operation that is incorporated into the power networks to electrical network with the streamed feedback energy of three plase alternating current; Battery controller charges to storage battery (group).And when electric network power-fail, battery controller provides direct current (DC) from storage battery (group) DC-DC mapping mode to energy feedback device, energy feedback device then provides three plase alternating current in independent generator operation mode to control housing, be that the elevator supply system is with " electric power isolated island " form work, thereby cut off the power supply when ensureing no moment, further support system does not have any impact when grid power blackout.
2. the integrated apparatus of a kind of elevator regenerated electric energy feedback grid according to claim 1 and grid power blackout emergency source of electrical power, it is characterized in that, below topological structure of the present invention and mode are further limited, be that its concrete topological structure and control method are as follows, (1) topological structure: whole device is by energy feedback device, storage battery (group) and battery controller constitute (2) mode: during the electrical network supply regular power, energy feedback device is with also net mode work, promptly to electrical network feedback regenerative electric energy, battery controller then charges to storage battery (group).During grid cut-off, energy feedback device is with independent generation mode work, and battery controller then provides direct current (DC) by the DC-DC mapping mode to energy feedback device from storage battery.Therefore, when grid cut-off, so that the machine room power supply makes it to work in " electric power isolated island " state, whole elevator device running state can not be subjected to have a power failure to be influenced this device to elevator device.
3. the integrated apparatus of a kind of elevator regenerated electric energy feedback grid according to claim 1 and grid power blackout emergency source of electrical power, it is characterized in that, described topological structure, specific as follows: the electric connecting mode of energy feedback device and apparatus for controlling elevator is: share direct current and ac bus, be about to energy feedback device and link to each other with the direct current positive and negative terminal of apparatus for controlling elevator, the three-phase alternating current end links to each other; Promptly (1) electric network state (2) elevator generator operation direction is continuous in the I/O mode for two control signals.Energy feedback device links to each other by battery controller with storage battery (group), and this battery controller shows as two-way isolation or non-isolation DC-DC changer.
4. the integrated apparatus of a kind of elevator regenerated electric energy feedback grid according to claim 1 and grid power blackout emergency source of electrical power, it is characterized in that, the described mode of operation that is incorporated into the power networks, specific as follows: electrical network just often, elevator motor (no matter being asynchronous dynamo or synchronous dynamo) has the four quadrant running function.When it is operated in generating state, electric energy will flow to dc bus from motor, produce dc bus pump up voltage.After vdc surpassed certain threshold values, energy feedback device was started working, and utilizes controllable semiconductor switch device (IGBT or MOSFET), and with the PWM modulation system, the three plase alternating current that this direct current energy is reverse into synchronized feeds back to electrical network.
5. the integrated apparatus of a kind of elevator regenerated electric energy feedback grid according to claim 1 and grid power blackout emergency source of electrical power, it is characterized in that, the described mode that works alone, specific as follows: during grid cut-off, energy feedback device is notified battery controller work in half period, make it to keep DC bus-bar voltage, self also begin to generate electricity simultaneously in the self timing mode.(by two logical signals, the indicating elevator master control system is made respective reaction, and promptly smooth deceleration is gone slowly to nearest floor parking by assigned direction then to stopping).At this moment, this device is equal to an independence for Taiwan vertical type generator for elevator device.
CN200810144729A 2008-07-28 2008-07-28 Integrated device having energy feedback and blackout emergent functions Pending CN101638199A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101950978A (en) * 2010-09-03 2011-01-19 合肥联信电源有限公司 Energy-saving emergency type elevator feedback power system
CN102367143A (en) * 2011-10-19 2012-03-07 沈阳博林特电梯股份有限公司 Energy saving type elevator driving and energy conversion device
CN104917270A (en) * 2015-06-11 2015-09-16 华南理工大学 High-power digital variable-frequency positive-negative pulse quick-charging system based on energy feedback
CN106253771A (en) * 2016-08-26 2016-12-21 绵阳市维博电子有限责任公司 A kind of energy release system driven for double-winding motor Hot Spare

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1079713A (en) * 1992-06-11 1993-12-22 三菱电机株式会社 Elevator control gear
JP2001253653A (en) * 2000-03-13 2001-09-18 Hitachi Ltd Elevator system
CN1696036A (en) * 2004-05-13 2005-11-16 三菱电机株式会社 Elevator control apparatus
CN1946625A (en) * 2004-05-12 2007-04-11 东芝电梯株式会社 Control device for hybrid drive-type elevator
CN200983561Y (en) * 2006-11-06 2007-11-28 张国良 Voltage self-control power feedback part
CN101119088A (en) * 2006-08-02 2008-02-06 上海三荣电梯有限公司 Whole controlled energy feedback system
CN201071232Y (en) * 2007-04-30 2008-06-11 王贤长 Elevator control gear with electrical energy feedback function
WO2008076095A2 (en) * 2006-12-14 2008-06-26 Otis Elevator Company Elevator drive system including rescue operation circuit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1079713A (en) * 1992-06-11 1993-12-22 三菱电机株式会社 Elevator control gear
JP2001253653A (en) * 2000-03-13 2001-09-18 Hitachi Ltd Elevator system
CN1946625A (en) * 2004-05-12 2007-04-11 东芝电梯株式会社 Control device for hybrid drive-type elevator
CN1696036A (en) * 2004-05-13 2005-11-16 三菱电机株式会社 Elevator control apparatus
CN101119088A (en) * 2006-08-02 2008-02-06 上海三荣电梯有限公司 Whole controlled energy feedback system
CN200983561Y (en) * 2006-11-06 2007-11-28 张国良 Voltage self-control power feedback part
WO2008076095A2 (en) * 2006-12-14 2008-06-26 Otis Elevator Company Elevator drive system including rescue operation circuit
CN201071232Y (en) * 2007-04-30 2008-06-11 王贤长 Elevator control gear with electrical energy feedback function

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101950978A (en) * 2010-09-03 2011-01-19 合肥联信电源有限公司 Energy-saving emergency type elevator feedback power system
CN102367143A (en) * 2011-10-19 2012-03-07 沈阳博林特电梯股份有限公司 Energy saving type elevator driving and energy conversion device
CN104917270A (en) * 2015-06-11 2015-09-16 华南理工大学 High-power digital variable-frequency positive-negative pulse quick-charging system based on energy feedback
CN104917270B (en) * 2015-06-11 2017-06-06 华南理工大学 High power digital frequency conversion positive negative pulse stuffing quick charging system based on energy feedback
CN106253771A (en) * 2016-08-26 2016-12-21 绵阳市维博电子有限责任公司 A kind of energy release system driven for double-winding motor Hot Spare

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Owner name: INVOLAR NEW ENERGY TECHNOLOGY (SHANGHAI) CO., LTD.

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Application publication date: 20100203