CN201737550U - Elevator energy feedback, reactive compensation and outage emergency operation system - Google Patents

Elevator energy feedback, reactive compensation and outage emergency operation system Download PDF

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Publication number
CN201737550U
CN201737550U CN2010202811554U CN201020281155U CN201737550U CN 201737550 U CN201737550 U CN 201737550U CN 2010202811554 U CN2010202811554 U CN 2010202811554U CN 201020281155 U CN201020281155 U CN 201020281155U CN 201737550 U CN201737550 U CN 201737550U
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elevator
inverter
reactive
energy feedback
storage battery
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唐欣
姚成诚
汤小东
谭敏
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Changsha University of Science and Technology
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Changsha University of Science and Technology
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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
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/60Planning or developing urban green infrastructure
    • 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
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30Reactive power compensation

Abstract

The utility model provides an elevator energy feedback, reactive compensation and outage emergency operation system comprising an energy feedback module, a reactive compensation module and an elevator outage emergency operation module, wherein the energy feedback module consists of an inverter circuit, a control circuit and a filter circuit, and the reactive compensation module can feed the elevator energy generated in braking back to a power grid, and generate reactive current in the elevator motorized operation state for compensating reactive power; the elevator outage emergency operation circuit can take over the elevator control power through switch switching under abnormal power grid power supply, and enable an elevator to operate to the position even with the floor and open a car door and a hoistway door, and then a passenger can walk out of the elevator safely. The system has simple structure, low loss, low cost, high power factor and no harmonic pollution on the power grid, is reliable in operation, and integrates elevator transducer outer-hanging energy feedback, reactive compensation, emergency floor even and other functions.

Description

Lift energy feedback, reactive-load compensation and switched-off emergency running system
Technical field
The utility model technology relates to the feedback of frequency-changing elevator energy, reactive-load compensation and elevator emergency leveling device, refers to a kind of lift energy feedback, reactive-load compensation and switched-off emergency running system especially.
Technical background
Along with the development of Power Electronic Technique, frequency converter is as the product of Development of Power Electronic Technology, is widely used as industries such as metallurgy, petrochemical industry, tap water, electric power in the every field of national economy, and bringing into play more and more important effect.Particularly construction trade great development recently, stand in great numbers in residential building, office building, big hotel, and elevator increases with surprising rapidity fast, and the power consumption of elevator simultaneously also increases with surprising rapidity fast, and the elevator energy-saving problem already is gravely put in face of us.Elevator belongs to the potential energy load, and in the brake snub process, a large amount of potential energy will convert electric energy to by traction motor.
For this problem, existing have following several solution:
1, for AC variable-frequency speed regulation system, because the unilateral conduction performance of diode, the regenerated energy of motor braking can't feed back to electrical network.For the safe operation of installing, this part energy must consume by certain approach.In medium and small capacity system, one adopts the resistance braking mode, though this method is simple, following shortcoming is arranged: the waste energy, and system effectiveness is low; Resistance heating is serious, influences other part normal operation of system; Simple resistance braking can not in time suppress the pump up voltage that snap catch produces, and has limited the raising of performance.
2, the PWM rectifier can be realized the energy two-way flow.The PWM rectifier has been realized the current on line side sineization and has been run on unity power factor, had the green energy conversion characteristics.In addition, because PWM rectifier net side presents the controlled current source characteristic, thereby this characteristic makes the application of PWM rectifier and control technology thereof be developed and widen.But the PWM rectifier has been born the transmission of bearing power, thereby is not suitable for high-performance application scenario.
3, energy back feed device is controlled by the pump up voltage that frequency converter is produced when the motor braking, utilizes the PWM inversion transformation technique renewable sources of energy can be fed back to electrical network.External in recent years major company drops among this research one after another, such as, Siemens has been released the voltage-type ac-dc-ac frequency converter of motor four quadrant running, Japanese fuji company has also successfully developed the power supply regenerative device, as RHR series, FRENIC series power supply regenerative unit, it is separated the active inversion unit from frequency converter, a direct peripheral unit as frequency converter, can be parallel to the DC side of frequency converter, with Way of Regenerating Energy Feedback in electrical network.But the ubiquitous problem of these products is these devices to cost an arm and a leg, and function singleness, and it is very high to the requirement of electrical network to add some products, is not suitable for the national conditions of China.
In the modern metropolitan cities, elevator is the indispensable facility of high residential building and office building, and its safety is extremely important.Because China's power supply shortage trend is not eased temporarily, power failure happens occasionally, elevator is when having a power failure, to constitute a serious threat to the life security that is trapped in passenger in the elevator, the elevator maintenance personnel at first cut off external power grid when manually rescuing, if elevator is at certain layer of level position, the repair and maintenance personnel manually open elevator hall's gate and discharge stranded passenger; If elevator is not at level position, the repair and maintenance personnel will unclamp elevator master motor band-type brake, and elevator slips car to certain layer of flat bed, and the repair and maintenance personnel just can manually open elevator hall's gate and discharge stranded passenger.Whole process time is longer, and the passenger is had very big influence at physiology and psychology, therefore, guarantees that the normal safe operation of elevator has significant meaning.Elevator emergency device is the oppressive emergency rescue equipment of a kind of elevator, be mainly used in the running process of elevator, when source of AC has a power failure suddenly or electric-control system et out of order and when making car be parked in the hoistway, automatically change, cut off former electric-control system, supply with the elevator source of AC and with the car traction to the level position back pullout (BPO), stranded passenger can in time be out of danger.
Chinese patent literature CN200710168665.3 discloses a kind of " being applicable to the energy feedback and the harmonic reactive-load compensation system of rectifying device " on December 7th, 2007, this system utilizes active filter and harmonic compensation to realize energy feedback and harmonic reactive-load compensation, but its specific aim for elevator device is not strong, and can not realize emergency story-leveling function
Chinese patent literature CN 201089681 Y disclose a kind of " elevator emergency device " on September 24th, 2008, can realize the emergency flat layer of elevator, but this utilization ratio of device are not high.
Renewable sources of energy when energy back feed device can be recycled elevator brake effectively; Reactive-load compensation can reduce transmission losses, improves the transmission of electricity quality; Elevator emergency device can guarantee elevator normally operation under powering-off state, the three is merged, when can solve existing elevator power consumption problems of too, can reduce the number of times of the artificial periodical maintenance of storage battery, make the elevator can safer more economical operation.In sum, research can solve energy consumption problem that elevator produced in electronic and braking mode and can be under the elevator powering-off state device of emergency flat layer, important in theory and practice significance are arranged.Therefore, the purpose of this utility model just provides a kind of at this lift energy feedback, reactive-load compensation and the emergency flat layer devices and methods therefor that generally uses.
The utility model content
The purpose of this utility model is to propose a kind of lift energy feedback, reactive-load compensation and switched-off emergency running system.The utility model is simple in structure, reliable, loss is little, cost is low, power factor is high, to the electrical network no-harmonic wave pollution, integrated multiple functions such as the feedback of elevator variable frequency device external hanging type energy, reactive-load compensation and emergency flat layer.
Technical solution of the present utility model is as follows:
A kind of lift energy feedback, reactive-load compensation and switched-off emergency running system, this lift energy feedback, reactive-load compensation and switched-off emergency running system link to each other with the former drive system of elevator;
The former drive system of elevator provides electric power by uncontrollable diode rectification device and frequency converter inverter for the traction electric machine of elevator for electrical network;
This lift energy feedback, reactive-load compensation and switched-off emergency running system comprise inverter, filter, control setup, bidirectional, dc converting means and storage battery;
The direct current outgoing side of the uncontrollable diode rectification device of direct current input side joint of inverter, the interchange outgoing side of inverter joins by the input side of filter and first contactless switch (KM2) and uncontrollable diode rectification device successively;
One side of bidirectional, dc converting means is joined by the direct current input side of second contactless switch (KM3) with inverter, another side joint storage battery of bidirectional, dc converting means, and storage battery joins by the feeder ear of the 3rd contactless switch (KM7) with the band-type brake of elevator;
The control end of the control end of inverter and bidirectional, dc converting means all joins with control setup; Control setup is provided with flat bed signal input interface and safety and door lock signal input interface; Being used for the synchronous circuit of detection of grid voltage, the current detection circuit that is used to detect uncontrollable diode rectification device AC side phase current, the vdc testing circuit that is used to detect inverter direct current input side vdc all joins with control setup;
The mouth of filter also joins by the traction electric machine of the 4th contactless switch (KM5) with elevator.
Described inverter adopts full bridge inverter, the input side cross-over connection of inverter has first electric capacity (C2), described filter adopts rc filter circuit, the master chip of described control setup adopts DSP, being configured to of described bidirectional, dc converting means: the C utmost point of first power tube connects the DC side positive pole of inverter through second contactless switch (KM3), and the E utmost point of first power tube connects the positive pole of storage battery through inductance L; The C utmost point of second power tube and the E utmost point of first power tube join, and the E utmost point of second power tube connects the negative pole of storage battery; Second electric capacity (C3) is connected across the positive and negative end of storage battery; Be connected to the 5th contactless switch (KM1) between the input side of electrical network and uncontrollable diode rectification device, frequency converter inverter (2) is connected with traction electric machine (3) by the 6th contactless switch (KM4).
Lift energy feedback, reactive-load compensation and the switched-off emergency running method of corresponding lift energy feedback, reactive-load compensation and switched-off emergency running device, adopt the described lift energy feedback of claim 2, reactive-load compensation and switched-off emergency running system, described lift energy feedback, reactive-load compensation and switched-off emergency running method specifically comprise following content:
Whether the detection of grid power supply is unusual, if unusually then start the emergency story-leveling function pattern; Otherwise enter energy feedback and reactive-load compensation pattern; Electrical network comprises electric network power-fail or phase shortage unusually;
Judge whether storage battery needs the time of safeguarding,, then enter energy feedback and reactive-load compensation pattern if also do not arrive the time that needs maintenance; Otherwise enter the battery maintenance pattern; Take the regularly mode of maintenance according to the concrete condition of service of the used battery of elevator, safeguarded once such as one month;
Described energy feedback and reactive-load compensation pattern are: the magnitude of voltage and the default value of first electric capacity (C2) are compared the generation deviation signal, this deviation signal obtains controlling quantity by the voltage control algorithm, the voltage control algorithm here is traditional PI algorithm, multiply each other with synchronizing signal again and obtain the control signal of output active current, synchronizing signal refer to obtain by the testing circuit voltage transformer with line voltage with the voltage signal of homophase frequently, this voltage signal is to obtain by step-down transformer, and the effective value of this voltage signal is 1~6v.Next utilize the PQ decomposition algorithm to calculate the reactive component of load current, and the control signal of active current and the reactive component addition of load current obtained the current control reference signal, be delivered to electrical network by current Control Algorithm control inverter output active current or reactive-load compensation electric current again; The PQ decomposition algorithm please refer to document: " Wang Zhaoan, Yang Jun, Liu Jinjun etc. harmonic wave suppresses and reactive power compensation (chapter 6). China Machine Press, 2006.1 "
Current Control Algorithm adopts iterative learning control, but the specific algorithm list of references: " the Sun Ming pavilion is yellow precious strong. iterative learning control (chapter 2). and National Defense Industry Press, 1999.5 "
The detailed process of described battery maintenance pattern is: at first judge that according to the current magnitude of voltage of storage battery battery is needs discharge or charging, be the voltage of microprocessor monitors storage battery, need then to represent discharge when voltage is low to a certain degree, voltage is high to need charging to which kind of degree.Concrete parameter is determined according to the specification of storage battery, is prior art, if need discharge, control bidirectional, dc converting means boosts, and the electric energy of storage battery is delivered to the dc bus of bidirectional, dc converting means; If need charging, the step-down of control bidirectional, dc converting means is delivered to storage battery with the electric energy of the dc bus of bidirectional, dc converting means; But step-down of bidirectional, dc converting means and the technology list of references that boosts " Li Jun. bidirectional, dc transformation system energy shifts control research (chapter 3). Wuhan University of Technology's Master's thesis, 2008.4 ".
The detailed process of described emergency story-leveling function pattern is: at first cut off the 5th contactless switch (KM1), first contactless switch (KM2) and the 6th contactless switch (KM4) disconnect lift energy feedback, reactive-load compensation and switched-off emergency running system, contact between traction electric machine and the electrical network, closed second contactless switch (KM3), detect the flat bed signal by control setup again and judge whether elevator is in level position, if elevator is at level position, closed the 7th contactless switch (KM6), and control setup (9) is controlled bidirectional, dc converting means (7) and inverter (5) output is single-phase or the alternating-current voltage/AC voltage driving gate machine of three-phase, open gate and Room door, allow passenger safety walk out elevator, elevator has two-layer door, one on car, be gate, another has at each layer, is Room door, is opened together by the door machine; If elevator is not at level position, earlier closed the 3rd contactless switch (KM7), the coil required voltage of band-type brake is provided, utilizes the a-c electric drive traction electric machine of control setup control bidirectional, dc converting means and inverter output three-phase (can unclamp during the lock energising, car can be moved again; When outage then can " locking ", stops car to move), make elevator move to level position, open gate and Room door again, allow passenger safety walk out elevator.
Lift energy feedback of the present utility model, reactive-load compensation and switched-off emergency running system are made up of energy feedback, reactive-load compensation and elevator switched-off emergency running three big modules, comprise that specifically control setup, inverter, filter, bidirectional, dc converting means, storage battery and state switch KM1-KM7 form.
Control setup is made up of synchronous circuit, testing circuit and control Driver Circuit three parts, and the function of each several part is respectively:
A. testing circuit: realize the detection of frequency converter vdc and inverter outgoing current, power network current is obtained the voltage signal of 0~3V, for voltage, current closed-loop control provide feedback signal, and safety and locked loop signal peace layer signal is converted to voltage signal gives control Driver Circuit, guarantee the feedback device action message;
B. synchronous circuit: utilize voltage transformer obtain with line voltage with the reference signal of homophase frequently;
C. control Driver Circuit: with the dsp chip is core, utilize the AD conversion unit in the DSP sheet that the signal that comes self synchronization circuit and testing circuit is gathered, carry out computing and judgement by program, utilize the PWM unit in the DSP sheet that control signal is modulated again, thereby produce the PWM control wave.
Inverter is made up of six power switch pipes and dc capacitor, be used to break-make from the pwm signal power controlling switching valve of controlling the device generation, direct current energy is converted to AC energy, realizes the function of energy feedback, reactive-load compensation and the power supply of elevator current failure emergency:
Filter is the low-pass filter that is made of inductance and electric capacity, realizes the switch harmonic that the filtering inverter produces.
The bidirectional, dc converting means is realized the conversion of different vdc grades, during charge condition, uncontrollable diode rectification device DC side bus voltage is transformed into certain voltage charges a battery; During the emergency operating state, the bidirectional, dc converting means obtains the energy conversion voltage magnitude from storage battery and delivers to the voltage that the inverter inversion forms different brackets and deliver to corresponding mechanism; During the regular discharge regime of storage battery, the bidirectional, dc converting means obtains the energy conversion voltage magnitude from storage battery and delivers to inverter and produce active current.
Beneficial effect:
Lift energy feedback of the present utility model, reactive-load compensation and switched-off emergency running system comprise energy feedback module, reactive compensation module and elevator switched-off emergency running module.Specifically energy feedback module of being made up of inverter circuit, control circuit, filter circuit and the reactive compensation module energy back that elevator can be produced at glancing impact is sent the reactive-current compensation reactive volt-amperes to electrical network when the elevator motor-operated running state; The elevator switched-off emergency running circuit of being made up of inverter circuit, control circuit, filter circuit, battery can guarantee that elevator is under the unusual situation of mains supply, switch adapter elevator control by switch, elevator is run to level position and open gate and Room door, allow passenger safety walk out elevator; Control algorithm can carry out periodical maintenance to storage battery, reduces the number of times of manual maintenance, and when safeguarding, the electric energy of storage battery is fed back to electrical network, has saved electric energy.This device has the electrical network no-harmonic wave pollution, can effectively handle elevator emergency short of electricity, reliability height, power factor height, little, the low cost and other advantages of loss.
The utility model organically combines energy feedback, reactive-load compensation and three kinds of functions of emergency flat layer, has improved the safety and the economy of elevator operation.Concrete advantage is described as follows:
(1) the utility model device belongs to the external hanging type system, need not the original driving system of elevator is transformed, and is easy to engineering and uses.
(2) regenerative electric energy feedback that produces in the time of can be with elevator brake is given electrical network, plays purpose of energy saving.
(3) can when elevator is electronic, produce reactive component of current,, thereby reduce transmission losses and electric cost for elevator drive system provides reactive volt-amperes.
(4) can when mains supply is unusual, car be drawn to level position, and open car door and emit the passenger.
(5) can carry out periodical maintenance to storage battery, reduce the number of times of manual maintenance, and when safeguarding, the electric energy of storage battery is fed back to electrical network, save electric energy.In addition, can also be after the elevator emergency response, automatically to battery charge.
(6) by the design-calculated control method energy feedback, reactive-load compensation and three kinds of functions of emergency flat layer are integrated on the covering device, have improved usage ratio of equipment, and reduced the cost of equipment.
Description of drawings
Fig. 1 is a system architecture diagram of the present utility model;
Fig. 2 is a control program main flow chart of the present utility model;
Fig. 3 divides diagram of circuit for charging control section of the present utility model;
Fig. 4 is that the utility model is applicable to the energy feedback of elevator and the example circuit diagram of reactive-load compensation and emergency flat layer integral system;
Fig. 5 is the control system schematic diagram.
The specific embodiment
Below with reference to figure and specific implementation process the utility model is described in further details.
Embodiment 1:
As shown in Figure 1, former elevator variable frequency system comprises electrical network 4, uncontrollable diode rectification device 1, frequency converter inverter 2 and traction electric machine 3.The dc bus positive and negative electrode mouth of uncontrollable diode rectification device 1 is corresponding continuous with the inverter 5 electric capacity positive and negative electrodes of the utility model system.
The utility model is applicable to energy feedback and the reactive-load compensation and the emergency flat layer integral system of elevator, comprises that inverter 5, filter 6, bidirectional, dc converting means 7, storage battery 8, control setup 9 and state switch KM1-KM7 form.
For realizing high-quality energy feedback and reactive power compensation, need control the utility model device outgoing current, and current controlled condition is the maxim of the voltage of inverter 5 electric capacity greater than electrical network 4 line voltages, thereby, the utility model proposes a kind of control method of inverter 5 capacitance voltages, when in a single day this method enters energy feedback and reactive-load compensation pattern in system, closed loop control by voltage, vdc always is controlled at setting value, get 660V in this example, when elevator is in brake running state, when the DC bus-bar voltage of uncontrollable diode rectification device 1 will be higher than the integrated apparatus preset value, get 660V in this example, energy will flow to electrical network by inverter; When elevator was in motor-operated running state, it was preset value that inverter will keep the voltage of electric capacity by the mode of bootstrapping.The method that is proposed merges energy feedback and reactive-load compensation well.In addition,, in energy feedback of the present utility model and reactive-load compensation pattern, also designed the electric energy management method of storage battery, effectively utilized the electric energy of storage battery for storage battery 8 is regularly carried out charge and discharge maintenance.
The pwm control signal that inverter 5 is accepted from control setup 9 by the break-make of its 6 power switch pipes, converts direct current (DC) to alternating current and delivers to filter 6.
Filter 6 is accepted the meritorious or reactive component of current from inverter 5, after the high order harmonic that elimination inverter 5 produces, electric current is delivered to electrical network 4 or traction electric machine 3, door machine 11.
Bidirectional, dc converting means 7 is accepted the pwm control signal from control setup 9, by the break-make of its 2 power switch pipes, when storage battery 8 chargings, realizes buck functionality, makes the power flow storage battery 8 on the dc bus of inverter 5; When storage battery 8 discharges or output electric energy, realize boost function, make the dc bus of the power flow inverter 5 of storage battery 8.
The electric energy that storage battery 8 receives from bidirectional, dc converting means 7 carries out energy storage or exports electric energy to bidirectional, dc converting means 7, also provides electric energy by KM7 for band-type brake 10.
As shown in Figures 2 and 3, control setup 9 obtains the input load electric current of uncontrollable diode rectification device 1, the voltage of electrical network 3 and the DC bus-bar voltage of inverter 5 electric capacity by current sensor and voltage sensor, obtains the flat bed signal of former elevator device simultaneously by interface circuit.Produce the break-make that on-off signal is controlled the break-make of inverter 5 interior 6 power switch pipes and bidirectional, dc converting means 7 interior 2 power switch pipes, while state of a control change-over switch KM1-KM7 respectively according to the parameter control of obtaining.The control flow of control setup 9 as shown in Figure 2, control setup 9 first detection of grid voltages, if normally then detect the voltage and the load current of inverter 5 electric capacity again, judge whether elevator drive system works, if in work, the utility model device enters energy feedback and reactive-load compensation pattern, judge then whether storage battery needs periodical maintenance, if storage battery is maintenance free, inverter 5 capacitance voltages and default value are compared the generation deviation signal, this deviation signal obtains controlling quantity by the voltage control algorithm, multiply each other with synchronizing signal again and obtain the reference signal of output active current, next utilize the PQ decomposition algorithm to obtain the reactive component of load current, and will gain merit and idle control signal addition obtain the current control reference signal, be delivered to electrical network 3 by current Control Algorithm control inverter 5 output active currents or reactive-load compensation electric current again, as shown in Figure 5.The method that energy feedback of the present utility model and reactive-load compensation pattern are passed through to be proposed well merges energy feedback and reactive-load compensation.In the subprogram of storage battery periodical maintenance, judge that at first battery is to need discharge or charging, if need discharge, control bidirectional, dc converting means 7 boosts, and the electric energy of battery is delivered to dc bus; If need charging, 7 step-downs of control bidirectional, dc converting means are delivered to storage battery with the electric energy of dc bus.If mains supply is unusual, then start emergency story-leveling function, at first cut off KM1, KM2 and KM4 and disconnect getting in touch of motor and integral system and electrical network, closed KM3, judge whether flat bed of elevator again, if elevator is at level position, the alternating-current voltage/AC voltage driving gate machine of the single-phase or three-phase of control setup 9 control bidirectional, dc converting means 7 and inverter 5 outputs, open gate and Room door, allow passenger safety walk out elevator; If elevator is not at level position, closed KM7, band-type brake coil required voltage is provided, utilize the alternating-current voltage/AC voltage of control setup 9 control bidirectional, dc converting means 7 and inverter 5 output three-phases to drive traction electric machine again, make elevator to level position, open gate and Room door again, allow passenger safety walk out elevator.
Fig. 4 is the example circuit diagram that Fig. 1 the utility model is applicable to the integrated apparatus that the energy-conservation and elevator current failure emergency of elevator variable frequency is handled, and the utility model is described in detail below by Fig. 4 again.
This example is to be that control one of core is applicable to the energy feedback of elevator and the example of reactive-load compensation and emergency flat layer integral system with DSP.This example selects for use diode D1 to guarantee the system capacity nonreturn flow, and its positive pole is connected on the positive pole of the DC side electric capacity of voltage regulation C 1 of uncontrollable diode rectification device 1, and its negative pole connects the positive pole of the electric capacity of voltage regulation (i.e. first capacitor C 2) of inverter 5 DC side; Inverter 5 adopts the three phase full bridge structure; For the filtering high order harmonic relevant with switching frequency effectively, filter 6 is taked the filter construction be made up of inductance and electric capacity; Control setup 9 is made up of the synchronous circuit 9.1 that is used for detection of grid voltage, current detection circuit 9.2, vdc testing circuit 9.3 and controlling and driving plate 9.4, and controlling and driving plate 9.4 adopts DSP to realize.Load is the electrical motor of elevator.
The utility model energy feedback simultaneously and harmonic reactive-load compensation system and uncontrollable diode rectification device be wire joint altogether, and promptly feedback of the utility model energy and harmonic reactive-load compensation system are the original systems that inserts in parallel.
Relation between four parts of control setup 9 is as follows, and synchronous circuit 9.1 obtains three-phase voltage U from electrical network 3 Sa, U SbAnd U Sc, the current detection circuit 9.2 never input path of controllable diode rectifying device 1 and the path that filter 6 flows to electrical network obtains load current and compensating current I respectively La, I LbAnd I Ca, I Cb, vdc testing circuit 9.3 obtains voltage V respectively from first capacitor C 2 of inverter 5 and the two ends of storage battery Dc1And V Dc2, again the electric current and the voltage signal that obtain are sent into controlling and driving plate 9.4.Control action by controlling and driving plate 9.4 obtain among the control signal S1~S6 and bidirectional, dc converting means 7 of power switch pipe in the inverter 5 (but list of references " Li Jun. bidirectional, dc transformation system energy shifts control research (chapter 3). Wuhan University of Technology's Master's thesis, 2008.4 ") the control signal S7~S8 of switching valve.Control circuit of the present utility model and power circuit have directly adopted light to isolate and magnetic is isolated.
Certainly,, also need other auxiliary circuit, but these belong to one technology of this area, do not list one by one at this in order to realize the consummating function of application example of the present utility model.
Only in order to the explanation utility model, clearly the utility model is not subjected to the restriction of these embodiment to above embodiment.Any modification of those of ordinary skill in the art, be out of shape or be equal to replacement, all be encompassed in the utility model claim scope and work as the Shen based on the utility model flesh and blood.
The content that is not described in detail in this specification sheets belongs to this area professional and technical personnel's known prior art.
First capacitor C 2 is 1000 μ F in the inverter 5, the model of power tube in the inverter 5 (each has comprised an IGBT and an inverse parallel diode) is GT40Q321, the model of diode D1 is PX10A13A, and inductance and electric capacity are respectively 1mH and 3 μ F in the filter 6.

Claims (2)

1. a lift energy feedback, reactive-load compensation and switched-off emergency running system is characterized in that, this lift energy feedback, reactive-load compensation and switched-off emergency running system link to each other with the former drive system of elevator;
The former drive system of elevator provides electric power by uncontrollable diode rectification device and frequency converter inverter for the traction electric machine of elevator for electrical network;
This lift energy feedback, reactive-load compensation and switched-off emergency running system comprise inverter, filter, control setup, bidirectional, dc converting means and storage battery;
The direct current outgoing side of the uncontrollable diode rectification device of direct current input side joint of inverter, the interchange outgoing side of inverter joins by the input side of filter and first contactless switch (KM2) and uncontrollable diode rectification device successively;
One side of bidirectional, dc converting means is joined by the direct current input side of second contactless switch (KM3) with inverter, another side joint storage battery of bidirectional, dc converting means, and storage battery joins by the feeder ear of the 3rd contactless switch (KM7) with the band-type brake of elevator;
The control end of the control end of inverter and bidirectional, dc converting means all joins with control setup; Control setup is provided with flat bed signal input interface and safety and door lock signal input interface; Being used for the synchronous circuit of detection of grid voltage, the current detection circuit that is used to detect uncontrollable diode rectification device AC side phase current, the vdc testing circuit that is used to detect inverter direct current input side vdc all joins with control setup;
The mouth of filter also joins by the traction electric machine of the 4th contactless switch (KM5) with elevator.
2. lift energy feedback according to claim 1, reactive-load compensation and switched-off emergency running system, it is characterized in that, described inverter adopts full bridge inverter, the input side cross-over connection of inverter has first electric capacity (C2), described filter adopts rc filter circuit, the master chip of described control setup adopts DSP, being configured to of described bidirectional, dc converting means: the C utmost point of first power tube connects the DC side positive pole of inverter through second contactless switch (KM3), and the E utmost point of first power tube connects the positive pole of storage battery through inductance L; The C utmost point of second power tube and the E utmost point of first power tube join, and the E utmost point of second power tube connects the negative pole of storage battery; Second electric capacity (C3) is connected across the positive and negative end of storage battery; Be connected to the 5th contactless switch (KM1) between the input side of electrical network and uncontrollable diode rectification device, frequency converter inverter (2) is connected with traction electric machine (3) by the 6th contactless switch (KM4).
CN2010202811554U 2010-08-04 2010-08-04 Elevator energy feedback, reactive compensation and outage emergency operation system Expired - Lifetime CN201737550U (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101917020A (en) * 2010-08-04 2010-12-15 长沙理工大学 Lift energy feedback, reactive compensation and switched-off emergency running method and system
CN102244404A (en) * 2011-07-08 2011-11-16 宝钢发展有限公司 Intelligent MD (maintenance device) of storage battery
CN102556794A (en) * 2011-11-11 2012-07-11 上海永大电梯设备有限公司 Method for evacuating passengers under dangerous conditions of elevator
CN103010886A (en) * 2012-12-12 2013-04-03 江苏威尔曼科技有限公司 Alarm control circuit for elevator
CN103523624A (en) * 2013-09-02 2014-01-22 日立电梯(中国)有限公司 Backup rescue system of elevator
CN103608278A (en) * 2011-06-13 2014-02-26 三菱电机株式会社 Elevator control device
CN104379482A (en) * 2012-05-31 2015-02-25 通力股份公司 Drive device of elevator
CN106185493A (en) * 2016-08-31 2016-12-07 上海交通大学 Elevator energy-saving energy storage device and control method
CN111137767A (en) * 2020-02-27 2020-05-12 苏州易米克电子有限公司 Method for detecting battery performance in electric brake release device of elevator
WO2021062902A1 (en) * 2019-09-30 2021-04-08 苏州汇川技术有限公司 Emergency rescue method, apparatus and device for elevator, and computer-readable storage medium
CN113346495A (en) * 2021-07-14 2021-09-03 山东博诚电气有限公司 Motor control system and method

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101917020B (en) * 2010-08-04 2012-10-03 长沙理工大学 Lift energy feedback, reactive compensation and switched-off emergency running method and system
CN101917020A (en) * 2010-08-04 2010-12-15 长沙理工大学 Lift energy feedback, reactive compensation and switched-off emergency running method and system
CN103608278A (en) * 2011-06-13 2014-02-26 三菱电机株式会社 Elevator control device
CN103608278B (en) * 2011-06-13 2015-05-27 三菱电机株式会社 Elevator control device
CN102244404A (en) * 2011-07-08 2011-11-16 宝钢发展有限公司 Intelligent MD (maintenance device) of storage battery
CN102556794A (en) * 2011-11-11 2012-07-11 上海永大电梯设备有限公司 Method for evacuating passengers under dangerous conditions of elevator
CN104379482A (en) * 2012-05-31 2015-02-25 通力股份公司 Drive device of elevator
US9802790B2 (en) 2012-05-31 2017-10-31 Kone Corporation Drive device of an elevator with safety system
CN103010886A (en) * 2012-12-12 2013-04-03 江苏威尔曼科技有限公司 Alarm control circuit for elevator
CN103010886B (en) * 2012-12-12 2015-06-24 江苏威尔曼科技有限公司 Alarm control circuit for elevator
CN103523624A (en) * 2013-09-02 2014-01-22 日立电梯(中国)有限公司 Backup rescue system of elevator
CN103523624B (en) * 2013-09-02 2016-04-13 日立电梯(中国)有限公司 Backup rescue system of elevator
CN106185493A (en) * 2016-08-31 2016-12-07 上海交通大学 Elevator energy-saving energy storage device and control method
WO2021062902A1 (en) * 2019-09-30 2021-04-08 苏州汇川技术有限公司 Emergency rescue method, apparatus and device for elevator, and computer-readable storage medium
CN111137767A (en) * 2020-02-27 2020-05-12 苏州易米克电子有限公司 Method for detecting battery performance in electric brake release device of elevator
CN113346495A (en) * 2021-07-14 2021-09-03 山东博诚电气有限公司 Motor control system and method

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