CN103303759A - Super capacitive energy storage elevator self-rescue device - Google Patents
Super capacitive energy storage elevator self-rescue device Download PDFInfo
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- CN103303759A CN103303759A CN2013102458950A CN201310245895A CN103303759A CN 103303759 A CN103303759 A CN 103303759A CN 2013102458950 A CN2013102458950 A CN 2013102458950A CN 201310245895 A CN201310245895 A CN 201310245895A CN 103303759 A CN103303759 A CN 103303759A
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Abstract
The invention relates to a super capacitive energy storage elevator self-rescue device. According to the device, on the basis that the original elevator frequency conversion drive unit is not changed, a main circuit is additionally provided with a super capacitive energy storage device as an elevator reserve power supply to prevent the panic and dangers of personnel in an elevator car due to an out-of-control elevator caused by sudden power failure of a mains supply when a disaster such as an earthquake and a fire disaster occurs. The elevator frequency conversion drive unit comprises an uncontrollable rectifier bridge module, a direct current bus filter capacitor, a frequency converter power module and an elevator tractor. The super capacitive energy storage device consists of a super capacitor and a two-cascade BOOST circuit. The super capacitor has the advantages of high capacitance, quick charging and discharging, wide operating temperature range, long cycle service life, simplicity in maintenance and the like. The two-cascade BOOST circuit can perform quick discharging control on the super capacitor, allow the super capacitor to output high voltage quickly when operating, and allow the bus voltage to be kept higher, so that the elevator tractor can operate at a higher speed, the elevator can arrive at designated floors as soon as possible, and the personnel in the car can get rid of the dangers as soon as possible.
Description
Technical field
The present invention relates to a kind of elevator switched-off emergency running system, especially, the present invention adopts super capacitor as closed-center system, to guarantee when disaster takes place or other are that elevator provides emergency standby power when in emergency circumstances civil power cuts off the power supply suddenly, ensure the safety of personnel in the elevator as backup power.
Background technology
Along with China's rapid economic development, constantly the carrying out of urbanization process, the quickening of building construction speed, China's elevator quantity is in the quick rise period; The risk that has outage when disaster taking place or other emergencies occur, elevator can occur closing the phenomenon that the people stops ladder when taking place to have a power failure, and can cause certain fear and injury to the passenger.Therefore exploitation and the development of a series of safe spare facilities such as elevator power failure emergency rescue device have obtained extensive attention.
At present, elevator power failure emergency rescue device both domestic and external adopts general uninterrupted power supply (ups) Unity to control, and it is made up of UPS and the control circuit of standard.UPS generally adopts storage battery as backup power, storage battery have service life short, capacity is little, need periodical maintenance, to shortcomings such as ambient temperature sensitivities, and can not high current charge-discharge, be difficult for the band inductive load, the service life of seriously having limited UPS with and application in elevator rescue apparatus during stoppage of power supply.
Summary of the invention
The present invention seeks to solve storage battery in the ups power that existing elevator emergency device adopts have service life short, capacity is little, need periodical maintenance, to problems such as ambient temperature sensitivities, a kind of reliability height, high safety are proposed and can avoid elevator to have a power failure the super capacitor energy-storage elevator self-help apparatus that oppressive accident takes place.
For achieving the above object, the present invention utilizes the super capacitor group to substitute storage battery as the backup power of UPS.Super capacitor had both had the high discharge power advantage of electrostatic condenser, have than the large charge storage power, and super capacitor also had use flexibly, energy relationship simply clearly is convenient to be used in combination, working temperature range is big, can work under harsh environment, and not influence its serviceability; Environmental friendliness is pollution-free, and it is long to recycle the life-span, safeguards advantages such as simple.Compare it with storage battery and have many advantages, thus for elevator this concerning the high device of safety, reliability requirement super capacitor be a kind of best choice.Can ensure that elevator smooth running under the situation of outage ensures the safety of personnel in the elevator to flat bed by actv..
Technical scheme of the present invention is:
A kind of super capacitor energy-storage elevator self-help apparatus, be on the basis of original elevator variable frequency driver element, dc bus place in the middle of rectifying part and inversion part is in parallel super capacitor energy storage device, emergency service when reaching the civil power outage plays the effect of rescue; Described elevator variable frequency driver element comprises uncontrollable rectifier bridge module, dc bus filter capacitor, transducer power module and elevator traction machine.Dc bus filter capacitor 2 is connected in parallel on the positive negative output two ends of the dc bus of uncontrollable rectifier bridge module 1, and transducer power module 3 is connected with the positive negative output two ends of dc bus, and elevator traction machine 4 connects the mouth of transducer power module 3.Super capacitor energy storage device 5 and dc bus filter capacitor 2 also connect.
Wherein, super capacitor energy storage device is made up of super capacitor group and twin-stage connection BOOST circuit.Adopt twin-stage connection BOOST circuit in the super capacitor energy storage device, by two BOOST combination of circuits are cascaded to together, can improve the multiple that boosts like this, can so that super capacitor under the situation of low voltage to the dc bus output HIGH voltage, quantity that can less super capacitor, cost-cutting; Rated value in the time of can keeping dc bus place magnitude of voltage to approach normal the operation during super capacitor energy storage device work simultaneously, to ensure that elevator can still can be with higher rotation speed and smooth running when having a power failure, elevator is arrived specify flat bed, make the interior personnel of case out of danger as early as possible.
The super capacitor energy storage device that the present invention proposes, control circuit adopts the DSP microprocessor, is used for horsepower output switching valve gate-drive pwm signal, control twin-stage connection BOOST circuit working state.
Advantage of the present invention and good effect:
When 1, apparatus of the present invention realize emergency management and rescue, do not influence former elevator variable frequency driving circuit topological structure.
2, the super capacitor energy storage device that the present invention adopts, no matter from the volume of device, circuit structure, particularly at the speed of discharging, capacity has advantage more: super capacitor has the fast advantage of the velocity of discharge, can discharge rapidly after civil power outage provides energy for elevator, shorten the middle transition time, super capacitor also has advantage capacious in addition, its stored energy can guarantee fully that elevator can run to the flat bed place of designated floor, even earthquake magnitude is less than Pyatyi, fire perhaps occurs but do not see that naked light and temperature still can repeatedly move under the safety condition in safe range etc.
3, super capacitor energy storage device of the present invention has adopted twin-stage connection BOOST booster circuit, by two BOOST circuits cascadings are arrived together, improves step-up ratio, reduces required super capacitor both end voltage as far as possible, reduces the super capacitor usage quantity, cost-cutting; Can rapid discharge when civil power cuts off the power supply, because it has higher step-up ratio, the both end voltage of super capacitor is than exporting high voltage to dc bus under the decimal, like this can be so that elevator traction machine moves at a relatively high speed, ensure the running velocity of elevator, shorten the evacuation time of personnel in the rescue case.
4, by two BOOST circuit bank are combined together, by equivalent transformation, save an IGBT under the prerequisite that level is independent of each other before and after guaranteeing, reduce device volume, save cost.
Description of drawings
Fig. 1 is apparatus of the present invention hardware circuit diagram;
Fig. 2 simplifies isoboles for apparatus of the present invention super capacitor energy storage device;
Fig. 3 is the control system block diagram of apparatus of the present invention.
Among the figure, 1 uncontrollable rectifier bridge module, 2 dc bus filter capacitors, 3 transducer power modules, 4 elevator traction machines, 5 super capacitor energy storage devices.
The specific embodiment
The specific embodiment of the invention describes as follows in conjunction with Fig. 1 ~ 3:
The super capacitor energy-storage elevator self-help apparatus that the present invention proposes is not change on the former elevator variable frequency driver element basis, forms with the dc bus place super capacitor energy storage device in parallel in the middle of the inversion part in rectifying part.The elevator variable frequency driver element comprises uncontrollable rectifier bridge module 1, dc bus filter capacitor 2, transducer power module 3 and elevator traction machine 4.Dc bus filter capacitor 2 is connected in parallel on the positive negative output two ends of the dc bus of uncontrollable rectifier bridge module 1, and transducer power module 3 is connected with the positive negative output two ends of dc bus, and elevator traction machine 4 connects the mouth of transducer power module 3.Super capacitor energy storage device 5 and dc bus filter capacitor 2 also connect, and see Fig. 1.
Wherein, super capacitor energy storage device is formed (referring to Fig. 2) by super capacitor group and twin-stage connection BOOST circuit.
The control circuit of super capacitor energy storage device adopts the DSP microprocessor, is used for horsepower output switching valve gate-drive pwm signal, control twin-stage connection BOOST circuit working state.
One, when the electrical network supply regular power, this moment, super capacitor energy storage device 5 was not worked, elevator variable frequency driver element normal operation, and the control elevator normally moves.Concrete working process is as follows:
Outside three-phase alternating current electrical network is direct current signal through uncontrollable rectifier bridge module 1 with the three-phase ac signal rectification at first.The direct current signal of 2 pairs of uncontrollable rectifier bridge module 1 outputs of dc bus filter capacitor carries out filtering to be handled.Direct current signal after 3 pairs of dc bus filter capacitor 2 filtering of transducer power module are handled carries out inversion to be handled, and the three-phase ac signal of output elevator traction machine 4 required frequencies, final elevator traction machine 4 drag outside Elevator weight sensor and cab motion.
Two, when electrical network because of disaster, burst accidents such as fire cause when having a power failure, super capacitor energy storage device 5 is started working, carry vdc to dc bus, 3 inversions are three plase alternating current through the transducer power module, for elevator traction machine 4 provides electric energy, make elevator traction machine 4 to continue smooth running with certain speed, with the arrival flat bed that ensures that elevator can safety and steady, make that personnel are saved rapidly in the elevator.
Concrete working process is as follows:
After civil power outage suddenly, outer network source detecting unit detects signal, sends control signal and makes elevator enter standby mode of operation.
(1) if the car position detector of elevator finds that elevator is in level position, and the weight sensor detection signal of elevator shows that nobody then changes the elevator mode of operation over to whole power down modes in the elevator case.
(2) if the car position of elevator finds that elevator is in level position, and elevator weight sensor detection signal shows in the elevator that the people is arranged, and then adopts backup power to open the elevator gate and makes that personnel can safe escape in the elevator case.
(3) if the car position sensor of elevator is in non-level position, both elevator was in running state, this moment, super capacitor energy storage device 5 began to enter mode of operation, and with the opening and turn-offing of given frequency period, this moment, circuit equivalent was the Boost circuit of twin-stage connection as the switching valve V among Fig. 2.When switching valve V conduction period, the electric current of inductance L 1 flows through switching valve V through diode D3, when switching valve V blocking interval, the energy storage of inductance L 1 discharges to C1 through D1, the energy storage of L2 discharges to the dc bus place through D2, D3 has stoped the invalid exergonic loop at the V blocking interval, and the front and back level is not disturbed mutually, so its output input relation can get:
D is the dutycycle of master cock signal in the formula, V
DcBe the output voltage of booster circuit, V
ScBe the super capacitor both end voltage.So changing the V switching frequency cycle by control system just can ensure to dc bus stable voltage is provided, thereby ensure that elevator traction machine 4 moves with same speed, detect elevator until the elevator car position sensor and be in building appointment flat bed place, open the elevator gate the interior personal security of case is withdrawn, then elevator is changed over to whole power down modes.
The present invention proposes super capacitor energy-storage elevator self-help apparatus, control system is core with the DSP microprocessor, the DSP microprocessor is as the core of whole super capacitor energy-storage elevator self-help apparatus control circuit, according to the PWM control policy sampled signal is analyzed, the output pwm control signal is so that the mode of operation of switching valve in the control super capacitor energy storage device 5.
Not relating to part in the above-mentioned explanation all can adopt prior art to be realized.
Claims (4)
1. super capacitor energy-storage elevator self-help apparatus, it is characterized in that this self-help apparatus is on the basis that does not change original elevator variable frequency driver element, dc bus place in the middle of rectifying part and inversion part is in parallel super capacitor energy storage device, emergency service when cutting off the power supply to reach civil power plays the effect of rescue.
2. super capacitor energy-storage elevator self-help apparatus according to claim 1 is characterized in that described elevator variable frequency driver element comprises uncontrollable rectifier bridge module, dc bus filter capacitor, transducer power module and elevator traction machine; The dc bus filter capacitor is connected in parallel on the positive negative output two ends of the dc bus of uncontrollable rectifier bridge module, the transducer power module is connected with the positive negative output two ends of dc bus, elevator traction machine connects the mouth of transducer power module, and super capacitor energy storage device and dc bus filter capacitor also connect.
3. super capacitor energy-storage elevator self-help apparatus according to claim 1 and 2 is characterized in that described super capacitor energy storage device joins the BOOST circuit by super capacitor group and twin-stage and forms.
4. super capacitor energy-storage elevator self-help apparatus according to claim 1 and 2, the control circuit that it is characterized in that described super capacitor energy storage device adopts the DSP microprocessor, be used for horsepower output switching valve gate-drive pwm signal, control twin-stage connection BOOST circuit working state.
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| CN2013102458950A CN103303759A (en) | 2013-06-20 | 2013-06-20 | Super capacitive energy storage elevator self-rescue device |
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| CN2013102458950A CN103303759A (en) | 2013-06-20 | 2013-06-20 | Super capacitive energy storage elevator self-rescue device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104237A (en) * | 2014-06-20 | 2014-10-15 | 任磊 | Frequency converter having high/low voltage ride-through function |
| CN107337038A (en) * | 2016-04-28 | 2017-11-10 | 奥的斯电梯公司 | Elevator emergency feeds line balance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030089556A1 (en) * | 2000-03-31 | 2003-05-15 | Thomas Eilinger | Emergency power supply device for lift systems |
| CN1845417A (en) * | 2006-04-10 | 2006-10-11 | 中国科学院电工研究所 | Hybrid energy-storage device for elevator and its controlling method |
| CN101817471A (en) * | 2010-04-27 | 2010-09-01 | 天津大学 | Super capacitor energy-storage type elevator driver |
| CN202474879U (en) * | 2012-03-26 | 2012-10-03 | 上海理工大学 | DC (direct current) bus ternary Buck-Boost two-way DC-DC voltage-stabilizing energy storage system |
| CN203306867U (en) * | 2013-06-20 | 2013-11-27 | 鑫诺电梯有限公司 | Ultra-capacitor energy storage type elevator rescue device |
-
2013
- 2013-06-20 CN CN2013102458950A patent/CN103303759A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030089556A1 (en) * | 2000-03-31 | 2003-05-15 | Thomas Eilinger | Emergency power supply device for lift systems |
| CN1845417A (en) * | 2006-04-10 | 2006-10-11 | 中国科学院电工研究所 | Hybrid energy-storage device for elevator and its controlling method |
| CN101817471A (en) * | 2010-04-27 | 2010-09-01 | 天津大学 | Super capacitor energy-storage type elevator driver |
| CN202474879U (en) * | 2012-03-26 | 2012-10-03 | 上海理工大学 | DC (direct current) bus ternary Buck-Boost two-way DC-DC voltage-stabilizing energy storage system |
| CN203306867U (en) * | 2013-06-20 | 2013-11-27 | 鑫诺电梯有限公司 | Ultra-capacitor energy storage type elevator rescue device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104237A (en) * | 2014-06-20 | 2014-10-15 | 任磊 | Frequency converter having high/low voltage ride-through function |
| CN107337038A (en) * | 2016-04-28 | 2017-11-10 | 奥的斯电梯公司 | Elevator emergency feeds line balance |
| CN107337038B (en) * | 2016-04-28 | 2021-06-18 | 奥的斯电梯公司 | Elevator emergency feeder balancing |
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Application publication date: 20130918 |