EP1272418A1 - Notstromversorgungseinrichtung für aufzugsanlagen - Google Patents
Notstromversorgungseinrichtung für aufzugsanlagenInfo
- Publication number
- EP1272418A1 EP1272418A1 EP01911324A EP01911324A EP1272418A1 EP 1272418 A1 EP1272418 A1 EP 1272418A1 EP 01911324 A EP01911324 A EP 01911324A EP 01911324 A EP01911324 A EP 01911324A EP 1272418 A1 EP1272418 A1 EP 1272418A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- energy
- elevator
- power supply
- emergency power
- storage unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
Definitions
- the present invention relates to an emergency power z> sorgungsem ⁇ chtung for lift installations with electric motor drives, which comprises an energy storage unit for electric energy, which brief mains voltage waste or interruptions bridged and during failure of the power supply of an elevator trip, the implementation of a 10 evacuation travel ensured by having everyone at the
- a rotary motor drives a hydraulic pump that essentially controls the piston rod (s) of one or more via a pressure flow
- a regulation of the car speed usually via a regulated change in the frequency of the three-phase current supplied to the drive three-phase motor.
- some of the elevator systems are equipped with emergency power supply devices. These contain an energy storage unit, with the stored energy of which the drive is able to request the elevator at least to the next floor and the elevator-relevant systems for as long as they are in operation hold 5
- Mains power is connected via the contacts of a mains monitoring relay to the DC link of a frequency converter feeding the drive motor.
- Electrochemical batteries have a relatively low power density (approx. 300 W / kg) and have to be used for the described application in a high power _. dimensioned so that its mass reaches several hundred kilograms.
- the present invention has for its object to provide a device for the emergency power supply of elevator systems of the type described above, which avoids the disadvantages mentioned. In particular, this should be able to reliably in the event of relatively frequent failures of the
- the emergency power supply device If used, it should be ready for operation again within a few seconds after the mains supply has been restored. With the same stress conditions, their lifespan should be a multiple of the lifespan of electrochemically acting batteries
- a device for the emergency power supply of elevator systems with electric motor drives has an energy storage unit for electrical energy, and is characterized in that this energy storage unit has capacitors in form of supercapacitors containing claim 6 en procedure is for emergency power supply of lift installations mt electric motor drives characterized marked r 'is characterized in that at least a part of the emergency power supply energ m em storage media of the form is stored by supercapacitors
- the invention is based on the idea of using novel capacitors, so-called supercapacitors, instead of or in combination with accumulators as energy stores, usually using an arrangement of several supercapacitors in series connection, which has a total capacitance of several farads at voltages of up to
- Double-layer capacitors the electrodes of which are coated with active carbon and therefore have effective surfaces of several thousand square meters per gram of carbon, with minimal distances in the nanometer range
- High permissible discharge power with a high number of charge and discharge cycles (power density of _5 supercapacities nowadays approx. 10 - 15 kW / kg; power density of accumulators nowadays approx. 300 - 1000 W / kg)
- Emergency power operation and onward travel to the next floor with full drive power can thus be achieved with an energy storage unit that is at least ten times lighter.
- Very high charging performance thereby shortening the waiting time between the re-existence of the mains supply and the operational readiness of the elevator to a fraction of the time required for accumulators. Much longer life than accumulators.
- an energy storage unit which contains only supercapacities as the storage medium is advantageously used .
- the application conditions mentioned occur, for example, in elevator systems, where so-called lobby elevators are used a large number of storey distances do not serve a stop, or in the case of lifts m lookout towers that only reach one or two stops at great heights.
- the device according to the invention can be used particularly advantageously in combination with frequency converter-controlled drives.
- the frequency converter essentially consists of a mains converter, a DC voltage intermediate circuit with smoothing capacitor, and a
- the DC link is usually equipped with a braking module.
- the device according to the invention which contains an energy storage unit made of supercapacities or a combination thereof with accumulators, absorbs energy from the above-mentioned direct voltage intermediate circuit and, if necessary, releases it. H. in the event of mains voltage drops or interruptions, as well as for evacuation trips in the event of mains power failure, to the DC link mentioned again.
- a regulating and control unit referred to as a power flow controller ensures that the DC voltage level between the energy storage unit and the intermediate circuit is adapted and regulates the energy exchange between this energy storage unit and the intermediate circuit of the frequency converter.
- a particular advantage of the combination of the device according to the invention with a frequency converter as a drive controller results from the fact that the control of the elevator system can be fed from the DC voltage intermediate circuit of the frequency converter during normal operation, as well as in emergency power mode. This ensures a completely uninterrupted supply of the elevator control during the transition from normal operation to emergency power operation and, in addition, the usual power supply unit for the control can be saved.
- a single device according to the invention is used as an emergency power supply device for the entire group of elevators in elevator systems which comprise a plurality of elevators, each drive motor being fed by an associated inverter from a common DC voltage intermediate circuit.
- the drive motors of conventional lifts with counterbalance weight when traveling with less than half the payload, and even able to recuperate braking energy m the common DC link can reduce the required capacity of the energy storage unit to one A fraction of the total of all capacities can be reduced, which would be required for all elevators in the group in the case of individual emergency power supply devices.
- the energy storage unit and the power flow controller are designed in such a way that the emergency power supply device according to the invention not only serves to carry out an evacuation trip when the mains supply fails and bridges mains voltage drops and interruptions, but also Normal operation causes a reduction in the connected load required for the system. This is done in that the energy storage unit absorbs energy during the idle times of the elevator and in phases of low drive load and feeds it back into the drive circuit during peak loads and phases of above-average load, the energy flow being regulated in both directions by the power flow controller.
- the emergency power supply device not only serves to carry out an evacuation trip when the mains supply fails and bridges mains voltage drops and interruptions, but also Normal operation causes a reduction in the connected load required for the system.
- the energy storage unit absorbs energy during the idle times of the elevator and in phases of low drive load and feeds it back into the drive circuit during peak loads and phases of above-average load, the energy flow being regulated in both directions by the power flow controller.
- the device interacts with a frequency converter, by means of which the drive motor is fed with variable frequency, its energy storage unit is loaded in m phases below average motor load from the DC voltage intermediate circuit of this frequency converter, and m phases above average
- this energy storage unit feeds part of the stored energy back into this DC voltage intermediate circuit.
- FIG. 1 shows a schematic illustration of the components of an elevator system in which an emergency power supply device according to the invention is provided with a
- FIG. 2 shows a schematic representation of the components of an elevator drive, in which an emergency power supply device according to the invention is also shown
- Energy storage medium contains a combination of supercapacities and accumulators.
- 3 shows a schematic illustration of the components of a group of elevator systems, in which one
- inventive emergency power supply device cooperates with a common DC voltage intermediate circuit of several frequency converters.
- 1 schematically shows the essential components of an elevator system with frequency converter and an emergency power supply device according to the invention.
- 1 designates the frequency converter, which is fed by the mains connection 2 and mainly consists of a mains converter 3, an inverter 4, a DC voltage intermediate circuit 5, a smoothing capacitor 6, a brake module 7 (with braking resistor and brake operating switch) and a motor connection 8 ,
- a three-phase motor 9 is connected to the frequency converter 1 as an elevator drive motor.
- the emergency power supply device is designated by 10 and contains on the one hand an energy storage unit 11 consisting of supercapacities 13 and on the other hand a power flow controller 12.
- Branch lines 17 connect the DC voltage intermediate circuit 5 to the power supply of electrical elevator components 18, which must function for evacuation trips, such as. B. the elevator control, the mechanical drive brake, the door drive, the lighting, communication facilities, ventilation, etc.
- the mains converter 3 of the frequency converter 1 draws alternating current (three-phase current) from the mains supply via the mains connection 2 and generates direct current therefrom, which it feeds into the direct voltage intermediate circuit 5.
- the inverter 4 removes. Direct current from this direct voltage intermediate circuit 5 and, controlled by an integrated control generator, generates a frequency-variable alternating current (three-phase current) as a feed for the three-phase motor 9.
- the three-phase frequency generated determines the speed of this motor and thus the driving speed of the elevator, with a central elevator control serving the control generator of the Inverter continuously provides information in a suitable form about the driving speed to be generated at a specific point in time.
- the smoothing capacitor 6 suppresses undulations and voltage peaks in the DC voltage intermediate circuit 5.
- the brake module 7 is used to convert the from Three-phase motor 9 generates warm braking energy during journeys with negative motor load, provided that the mains current filter 3 is not provided and designed for the recuperation of this braking energy ms mains to ensure, wherein the brake module 7 is activated as soon as the voltage in the DC link 5 exceeds a defined value during braking.
- the power flow reg
- DC voltage regulator for a voltage polarity and two current directions has the task of controlling the energy flow between the different voltage levels of the DC voltage intermediate circuit 5 and the energy storage unit 11.
- the energy storage unit is charged via the power flow controller 12 during the entire operational readiness period of the elevator installation, if there is excess energy in the DC voltage intermediate circuit 5, and on the other hand, this feeds the stored energy when required, i.e. H. at
- the DC voltage intermediate circuit 5 and thus also the inverter 4 and the components 18 which are fed via the branch lines 17 and which have to function for evacuation trips are supplied with energy without interruption 50 at least until the elevator has reached the next floor with a shaft door.
- the supercapacitors 13 of the energy storage unit 11 are able to deliver the maximum current required for a full load run without delay and are fully recharged in a very short time with the mains supply ready for operation again. This has a particularly advantageous effect in installations where mains supply interruptions are frequent and in quick succession occur For emergency power supply systems based on batteries have to the contrary, after each evacuation travel de relatively lengthy recharge time to wait before the elevator c again existing mains supply can automatically go into operation. Otherwise there is a considerable risk that the elevator will be blocked between two floors if there is another power failure.
- FIG. 2 schematically shows an elevator drive with frequency converter 1, as described above for FIG. 1, and with an emergency power supply device 10 according to the invention, in which the energy storage unit 11 is constructed from two different storage media.
- the energy storage unit 11 contains supercapacities 13 with their advantageous properties as a storage medium already described. So that the energy
- storage unit 11 can also supply enough energy for evacuation trips with longer travel distances, it contains accumulators 14 (secondary elements) as an additional storage medium, for example lead or Nl-Cd accumulators. Such accumulators 14 have one in comparison with supercapacities 13
- the described energy storage unit 11 acts in the same way, as also explained in the description of FIG. 1, via a power flow controller 12 with the DC link of the frequency converter, this power flow controller 12 being used in the
- the present embodiment of the energy storage unit is controlled in such a way that energy is drawn from the accumulators only for long-lasting processes.
- the components 18, which must function for evacuation trips, are also uninterrupted from the DC link 5 in every situation via the branch lines 17 Energy supplied.
- FIG. 3 describes the arrangement of the electrical components of a group of frequency converter-controlled elevator drives, where several three-phase motors 9 are connected via assigned inverters 4 to a common DC voltage intermediate circuit 16, which during normal operation is operated by one
- single network module 15 is supplied and is supplied with energy in the event of mains voltage drops and interruptions and in the event of complete failure of the mains supply while the elevator is in motion by a single emergency power supply device 10 according to the invention.
- ZD also consists of an energy storage unit 11 and a power flow controller 12, the energy storage unit 11 either consisting exclusively of supercapacitors or of a combination of supercapacitors and accumulators described above.
- Such a multiple arrangement of drives firstly has the advantage that only one network module 15 is required, which is preferably provided via the (for drives in the lower power range usually have too expensive) ability to feed excess braking energy back into the network.
- energy equalization processes between driving and braking drives can take place directly via the common direct voltage intermediate circuit 16, which reduces the energy costs.
- only a single emergency power supply device 10 according to the invention is required instead of a plurality of separate emergency power supply devices, which results in a considerable reduction in hardware complexity and thus in costs.
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
- Stand-By Power Supply Arrangements (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01911324A EP1272418B1 (de) | 2000-03-31 | 2001-03-21 | Notstromversorgungseinrichtung für aufzugsanlagen |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00810272 | 2000-03-31 | ||
EP00810272 | 2000-03-31 | ||
PCT/CH2001/000175 WO2001074703A1 (de) | 2000-03-31 | 2001-03-21 | Notstromversorgungseinrichtung für aufzugsanlagen |
EP01911324A EP1272418B1 (de) | 2000-03-31 | 2001-03-21 | Notstromversorgungseinrichtung für aufzugsanlagen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1272418A1 true EP1272418A1 (de) | 2003-01-08 |
EP1272418B1 EP1272418B1 (de) | 2008-11-19 |
Family
ID=8174628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01911324A Expired - Lifetime EP1272418B1 (de) | 2000-03-31 | 2001-03-21 | Notstromversorgungseinrichtung für aufzugsanlagen |
Country Status (14)
Country | Link |
---|---|
US (1) | US6938733B2 (de) |
EP (1) | EP1272418B1 (de) |
JP (1) | JP2003529512A (de) |
CN (1) | CN1257831C (de) |
AT (1) | ATE414667T1 (de) |
AU (1) | AU2001240406A1 (de) |
BR (1) | BR0109581B1 (de) |
CA (1) | CA2400762C (de) |
DE (1) | DE50114504D1 (de) |
ES (1) | ES2320094T3 (de) |
HK (1) | HK1054907B (de) |
IL (2) | IL151276A0 (de) |
PT (1) | PT1272418E (de) |
WO (1) | WO2001074703A1 (de) |
Cited By (1)
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CN110422734A (zh) * | 2019-07-25 | 2019-11-08 | 山东科技大学 | 一种电梯下行能量收集*** |
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US5058710A (en) * | 1990-08-14 | 1991-10-22 | Otis Elevator Company | Elevator power source device |
JP2656684B2 (ja) * | 1991-06-12 | 1997-09-24 | 三菱電機株式会社 | エレベータの停電時運転装置 |
JPH0539182A (ja) * | 1991-08-01 | 1993-02-19 | Mitsubishi Electric Corp | リニアモータエレベーター |
JPH0570047A (ja) * | 1991-09-17 | 1993-03-23 | Mitsubishi Electric Corp | 交流エレベータの制御装置 |
IT1251206B (it) * | 1991-09-18 | 1995-05-04 | Magneti Marelli Spa | Impianto elettrico di un autoveicolo, comprendente almeno un supercondensatore. |
JPH0578052A (ja) * | 1991-09-20 | 1993-03-30 | Hitachi Ltd | エレベータの非常時救出運転装置 |
JPH05221590A (ja) * | 1992-02-14 | 1993-08-31 | Mitsubishi Electric Corp | エレベータの制御装置 |
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US6075331A (en) * | 1993-03-18 | 2000-06-13 | Imra America, Inc. | Systems and methods for managing energy of electric power supply systems |
FI99109C (fi) * | 1994-11-29 | 1997-10-10 | Kone Oy | Varavoimajärjestelmä |
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US5712456A (en) * | 1996-04-10 | 1998-01-27 | Otis Elevator Company | Flywheel energy storage for operating elevators |
JPH10236743A (ja) * | 1997-02-28 | 1998-09-08 | Toshiba Corp | エレベータ制御装置 |
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JPH11299275A (ja) * | 1998-04-14 | 1999-10-29 | Osaka Gas Co Ltd | エレベータの電源装置 |
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FR2805843B1 (fr) * | 2000-03-03 | 2003-09-12 | Valeo Securite Habitacle | Ensemble de verrouillage d'une porte de vehicule automobile et procede de test du bon fonctionnement d'un module de serrure de cet ensemble |
ES2317890T3 (es) * | 2000-03-31 | 2009-05-01 | Inventio Ag | Dispositivo y procedimiento para reducir la potencia de la conexion a la red de instalaciones de ascensor. |
DE10102243A1 (de) * | 2001-01-19 | 2002-10-17 | Xcellsis Gmbh | Vorrichtung zur Erzeugung und Verteilung von elektrischer Energie an Verbraucher in einem Fahrzeug |
FR2819759B1 (fr) * | 2001-01-24 | 2003-05-23 | Alstom | Systeme d'alimentation d'un vehicule a traction electrique |
-
2001
- 2001-03-21 EP EP01911324A patent/EP1272418B1/de not_active Expired - Lifetime
- 2001-03-21 CN CNB018072208A patent/CN1257831C/zh not_active Expired - Lifetime
- 2001-03-21 AT AT01911324T patent/ATE414667T1/de active
- 2001-03-21 DE DE50114504T patent/DE50114504D1/de not_active Expired - Lifetime
- 2001-03-21 BR BRPI0109581-1A patent/BR0109581B1/pt not_active IP Right Cessation
- 2001-03-21 WO PCT/CH2001/000175 patent/WO2001074703A1/de active Application Filing
- 2001-03-21 ES ES01911324T patent/ES2320094T3/es not_active Expired - Lifetime
- 2001-03-21 PT PT01911324T patent/PT1272418E/pt unknown
- 2001-03-21 AU AU2001240406A patent/AU2001240406A1/en not_active Abandoned
- 2001-03-21 IL IL15127601A patent/IL151276A0/xx active IP Right Grant
- 2001-03-21 US US10/239,946 patent/US6938733B2/en not_active Expired - Lifetime
- 2001-03-21 JP JP2001572403A patent/JP2003529512A/ja active Pending
- 2001-03-21 CA CA002400762A patent/CA2400762C/en not_active Expired - Fee Related
-
2002
- 2002-08-15 IL IL151276A patent/IL151276A/en not_active IP Right Cessation
-
2003
- 2003-07-07 HK HK03104780.3A patent/HK1054907B/zh not_active IP Right Cessation
Non-Patent Citations (1)
Title |
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See references of WO0174703A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110422734A (zh) * | 2019-07-25 | 2019-11-08 | 山东科技大学 | 一种电梯下行能量收集*** |
Also Published As
Publication number | Publication date |
---|---|
HK1054907B (zh) | 2009-05-22 |
BR0109581B1 (pt) | 2012-12-11 |
CA2400762C (en) | 2009-05-26 |
CN1257831C (zh) | 2006-05-31 |
WO2001074703A1 (de) | 2001-10-11 |
IL151276A (en) | 2007-02-11 |
IL151276A0 (en) | 2003-04-10 |
EP1272418B1 (de) | 2008-11-19 |
ES2320094T3 (es) | 2009-05-19 |
JP2003529512A (ja) | 2003-10-07 |
HK1054907A1 (en) | 2003-12-19 |
CN1419518A (zh) | 2003-05-21 |
BR0109581A (pt) | 2003-01-28 |
DE50114504D1 (de) | 2009-01-02 |
ATE414667T1 (de) | 2008-12-15 |
US20030089556A1 (en) | 2003-05-15 |
US6938733B2 (en) | 2005-09-06 |
AU2001240406A1 (en) | 2001-10-15 |
PT1272418E (pt) | 2009-01-29 |
CA2400762A1 (en) | 2001-10-11 |
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