EP0703182B1 - Energy saving device for an elevator - Google Patents

Energy saving device for an elevator Download PDF

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Publication number
EP0703182B1
EP0703182B1 EP95114463A EP95114463A EP0703182B1 EP 0703182 B1 EP0703182 B1 EP 0703182B1 EP 95114463 A EP95114463 A EP 95114463A EP 95114463 A EP95114463 A EP 95114463A EP 0703182 B1 EP0703182 B1 EP 0703182B1
Authority
EP
European Patent Office
Prior art keywords
elevator
battery
energy
direct voltage
power
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.)
Expired - Lifetime
Application number
EP95114463A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0703182A3 (en
EP0703182A2 (en
Inventor
Matti KÄHKIPURO
Pekka Jahkonen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kone Corp
Original Assignee
Kone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kone Corp filed Critical Kone Corp
Publication of EP0703182A2 publication Critical patent/EP0703182A2/en
Publication of EP0703182A3 publication Critical patent/EP0703182A3/en
Application granted granted Critical
Publication of EP0703182B1 publication Critical patent/EP0703182B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • B66B1/30—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor
    • B66B1/302—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor for energy saving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • B66B1/30—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor
    • B66B1/308—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor with AC powered elevator drive

Definitions

  • the present invention relates to a system as defined in the preamble of claim 1 for saving energy in an elevator.
  • a system is known for example in document GB-A-2 139 831.
  • FIG. 1 presents a simplified circuit as provided by the invention.
  • a three-phase mains voltage is applied to a frequency converter 15 consisting of a rectifier 3, an inverter bridge 2 and an intermediate circuit 4,10,11 connected between these.
  • a frequency converter 15 consisting of a rectifier 3, an inverter bridge 2 and an intermediate circuit 4,10,11 connected between these.
  • the inverter bridge 2 converts the alternating voltage supplied by the drive motor 1 into a direct voltage, which is applied to the conductors 10 and 11 of the intermediate circuit 4,10,11.
  • a direct voltage converter 5 a battery 6 is charged with this voltage. In the solution of the invention, only one battery 6 is needed.
  • the power generated by the braking operation in frequency converter driven elevators (the voltage is about 650V and the current 1...3 A) is converted by means of a chopper type direct voltage converter 5 to a level of approx. 30V / 20...50A, which is well suited as a power source for an elevator and for the charging of 24V batteries.
  • 'Chopper type converter' means a transformer implemented using semiconductors and small-size ferrite core transformers which has an efficiency comparable to that of a transformer but which provides a better degree of regulation.
  • the same direct voltage converter 5 is used to supply power to the whole control system.
  • the direct voltage converter 5 can be used to produce a raised voltage for the elevator's safety circuit, which consists of door contactors and other safety switches and prevents the elevator from starting when the doors are open or it is otherwise hazardous to set the elevator in motion.
  • the elevator acts as an energy source, charging the battery 6 with a large current of 20...50A, and during approx. 80% of the time the energy stored in the battery 6 is used to supply power to the control equipment of the elevator, the control system, the brake and the signalling etc. Energy is supplied e.g. to the elevator control unit, identified by number 7 in the figure. This control unit needs a significant amount of electric energy.
  • the brake 8 of the elevator refers in the first place to the braking electromagnet, which also consumes quite a deal of energy
  • elevator lighting 9 refers in the first place to the car light, which generally requires a battery as a reserve power source.
  • the capacitor 4 reduces high-frequency noise passed to the mains network.
  • the energy generated during braking is converted to a lower voltage and supplied to elevator equipment as specified above and to the battery 6.
  • operation is almost the same as above but the power is taken from the electric network.
  • the transmission of braking energy into the battery 6 is controlled by adjusting the voltage to a suitable level. Voltage control also ensures that the battery 6 has a sufficient voltage.
  • Another feature of the invention is that it integrates the power sources of the elevator's drive and control systems into a single whole. So far, these have been separate from each other, which has caused additional expenses and problems relating to quality and disturbances.
  • reserve power operation of the elevator can be implemented so as to allow the elevator to be driven at a reduced speed for a few hours.
EP95114463A 1994-09-16 1995-09-14 Energy saving device for an elevator Expired - Lifetime EP0703182B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI944295A FI112008B (fi) 1994-09-16 1994-09-16 Hissin energiansäästölaite
FI944295 1994-09-16

Publications (3)

Publication Number Publication Date
EP0703182A2 EP0703182A2 (en) 1996-03-27
EP0703182A3 EP0703182A3 (en) 1996-12-04
EP0703182B1 true EP0703182B1 (en) 2001-04-04

Family

ID=8541384

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95114463A Expired - Lifetime EP0703182B1 (en) 1994-09-16 1995-09-14 Energy saving device for an elevator

Country Status (4)

Country Link
EP (1) EP0703182B1 (ja)
JP (1) JPH08169653A (ja)
DE (1) DE69520533T2 (ja)
FI (1) FI112008B (ja)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5893432A (en) * 1996-12-31 1999-04-13 Inventio Ag Controlled emergency stop apparatus for elevators
JPH1121035A (ja) * 1997-07-04 1999-01-26 Toshiba Corp エレベータ装置
JP4262960B2 (ja) * 2002-10-11 2009-05-13 東芝エレベータ株式会社 エレベータの照明装置
ES2299310B1 (es) * 2005-09-22 2009-02-16 David Illescas Romero Sistema, autonomo de acumulacion de energia aplicable a motores, circuitos inductivos y circuitos electricos en general.
DE102008002839A1 (de) 2007-05-08 2008-12-18 Karl-Ludwig Blocher Verfahren und Einrichtungen zur Nutzung von in mechanischen-elektrischen Systemen und anderen elektrischen Systemen gespeicherter Energie als Regelreserve in elektrischen Versorgungsnetzen
FI120759B (fi) 2007-06-20 2010-02-15 Kone Corp Kuljetusjärjestelmän tehonohjaus
CA2783724C (en) 2009-12-28 2016-04-05 Sandvik Mining And Construction Oy Mining vehicle and method for its energy supply
FI123470B (fi) 2009-12-28 2013-05-31 Sandvik Mining & Constr Oy Kaivosajoneuvo ja menetelmä sen energian syöttöön
CN101976833B (zh) * 2010-10-31 2013-03-20 华南理工大学 电梯群的电能监测管理系统及方法
ES2371847B1 (es) * 2011-11-22 2012-12-18 Industrial De Elevación, S.A. Sistema de ahorro energético para ascensores en corriente continua.
DE102013113266A1 (de) * 2012-11-30 2014-06-05 Aufzugswerke Schmitt & Sohn GmbH & Co. KG Aufzugsanlage
CN109088737B (zh) * 2017-06-14 2021-02-23 上海华为技术有限公司 一种油机节能方法、相关设备及系统
EP3590879A1 (en) * 2018-07-04 2020-01-08 KONE Corporation Elevator brake controller with earth fault detection
CN113224808A (zh) * 2021-04-14 2021-08-06 钟亮 一种基于超级电容的新型电梯节能装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5836867A (ja) * 1981-08-25 1983-03-03 三菱電機株式会社 交流エレベ−タの非常時運転装置
JPS59203072A (ja) * 1983-05-04 1984-11-17 三菱電機株式会社 交流エレベ−タの制御装置
JPH05294568A (ja) * 1992-04-22 1993-11-09 Hitachi Ltd エレベータ乗かごの電力供給装置

Also Published As

Publication number Publication date
FI112008B (fi) 2003-10-15
EP0703182A3 (en) 1996-12-04
FI944295A (fi) 1996-03-17
DE69520533T2 (de) 2001-07-12
JPH08169653A (ja) 1996-07-02
EP0703182A2 (en) 1996-03-27
DE69520533D1 (de) 2001-05-10
FI944295A0 (fi) 1994-09-16

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