CN207320846U - A kind of PCU Power Conditioning Unit for elevator - Google Patents

A kind of PCU Power Conditioning Unit for elevator Download PDF

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Publication number
CN207320846U
CN207320846U CN201721147526.8U CN201721147526U CN207320846U CN 207320846 U CN207320846 U CN 207320846U CN 201721147526 U CN201721147526 U CN 201721147526U CN 207320846 U CN207320846 U CN 207320846U
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China
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module
elevator
phase
energy
power supply
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CN201721147526.8U
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Inventor
孙杰
朱正国
刘顺桂
赵宇明
张华赢
汪清
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Shenzhen Power Supply Bureau Co Ltd
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Shenzhen Power Supply Bureau Co Ltd
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Abstract

The utility model provides a kind of PCU Power Conditioning Unit for elevator, which includes:Frequency converter, energy-storage module, DC/AC reversible transducers, rapidly switch off module, system power supply;Energy-storage module receives charged with direct current, also conveys direct current to DC/AC reversible transducers;System power supply is connected by rapidly switching off module with frequency converter and DC/AC reversible transducers, for conveying alternating current;DC/AC reversible transducers and frequency converter and rapidly switch off module and be connected, for alternating current to be converted to direct current, direct current is also converted into alternating current;And when the exchange side of DC/AC reversible transducers is as input terminal, input terminal is current source, and when the DC side of DC/AC reversible transducers is as input terminal, input terminal is voltage source;Rapidly switch off the connecting and disconnecting that module is used between control system power supply and frequency converter and DC/AC reversible transducers.The utility model can save the charging module and energy-storage module of elevator landing apptss emergency power supply, moreover it is possible to filter out the harmonic wave of frequency converter generation, and have the function of that high-low voltage is passed through.

Description

A kind of PCU Power Conditioning Unit for elevator
Technical field
It the utility model is related to elevator technology field, more particularly to a kind of PCU Power Conditioning Unit for elevator.
Background technology
With the development of construction industry, the dosage of China's elevator is stepped up, and elevator power consumption accounts for national total power consumption proportion Increasing, simultaneously because personnel's injury is more serious caused by elevator accident, therefore the energy saving and safe operation of elevator is not only Develop important content as elevator industry, and be of great significance to energy-saving and emission-reduction.
Super capacitor is as typical energy storage device, and since its service life increases, discharge capability is strengthened, cost reduction and It is widely used.Inverter based on Power Electronic Technique has been highly developed power electronic equipment, and reliability is high Cost is low.As elevator industry develops, mutually reply can possess the security for increasing elevator and energy saving device is more and more urgent.
Elevator power equipment general at present is mainly by system power supply, frequency converter rectification unit, inversion unit group Into, wherein system power supply is connected with the ac input end of frequency converter rectification unit, the DC output end of frequency converter rectification unit with The direct-flow input end of inversion unit is connected, and the ac output end of inversion unit is connected to elevator power load.
Elevator automatic floor approaching mechanism is to solve the problems, such as one of main means of elevator safety, and the program mainly uses at present should Realize that is, after system power supply dead electricity, emergency power supply can start to ensure that elevator rests in rationally within a short period of time in urgent telegram source Position, emergency power supply are mainly made of charging module, inverter module, bypass module and energy-storage module.
Energy-saving device of elevator mainly adds energy-storage module scheme structure using two-way DC-DC DC/AC reversible transducer modules Into when elevator declines, elevator braking energy can be deposited by two-way DC-DC DC/AC reversible transducer modules to energy-storage module Energy storage capacity, and can be released the energy by two-way DC-DC DC/AC reversible transducers module when elevator rises Put.
As the above analysis, the power equipment main problem for being currently applied to elevator is as follows:
1) elevator automatic floor approaching mechanism and energy-saving device of elevator are two independent equipment, cause partial function to be multiplexed, if It is standby complicated, cost is so not only added, also add elevator installation and maintenance difficulty;
2) harmonic wave needs in addition configuration wave filter is produced in order to filter out frequency converter, adds product complexity and cost;
3) power equipment at present applied to elevator does not possess high-low voltage and passes through function.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of PCU Power Conditioning Unit for elevator, can save The charging module and energy-storage module of elevator landing apptss emergency power supply, can also realize Elevator landing function, also, can not also The harmonic wave in addition setting wave filter to filter out frequency converter generation is needed, also so that the power equipment of elevator has high-low voltage Pass through function.
A kind of PCU Power Conditioning Unit for elevator provided by the utility model, including:Frequency converter, energy-storage module, DC/AC Reversible transducer, rapidly switch off module, system power supply;
The energy-storage module, is electrically connected with the DC side of the DC/AC reversible transducers, is carried out for receiving direct current Charge storage energy, and direct current is conveyed to the DC/AC reversible transducers;
The system power supply, module and the frequency converter and DC/AC reversible transducers electricity are rapidly switched off by described Property connection, for conveying alternating current to the frequency converter and the DC/AC reversible transducers;
The DC/AC reversible transducers, its exchange side are electrically connected with the frequency converter and the module that rapidly switches off, use In the alternating current from the system power supply is converted to direct current, and direct current is delivered to the energy-storage module, to described Energy-storage module charges, and the direct current from the energy-storage module also is converted to alternating current, and alternating current is delivered to the change Frequency device;And when the exchange side of the DC/AC reversible transducers is as input terminal, the input terminal of the DC/AC reversible transducers For current source, when the DC side of the DC/AC reversible transducers is as input terminal, the input terminal of the DC/AC reversible transducers For voltage source;
It is described to rapidly switch off module, for controlling the system power supply and the frequency converter and the DC/AC two-way changings Connecting and disconnecting between device;
The frequency converter, for by the alternating current from the DC/AC reversible transducers and from the system power supply into Row rectification, obtains direct current, and the DC conversion that rectification is obtained is conveyed to elevator power dress for the alternating current of setpoint frequency Put.
Preferably, the exchange side of the DC/AC reversible transducers is also electrically connected with elevator non-powered device;
The system power supply is electrically connected by the module that rapidly switches off with the elevator non-powered device, for conveying Alternating current is to the elevator non-powered device;
It is described to rapidly switch off module, it is additionally operable to connect through and off between control system power supply and the elevator non-powered device Open.
Preferably, the alternating current of the system power supply output is three-phase alternating current, the system power supply and the frequency converter Between connected by three-phase AC line, the module that rapidly switches off is arranged on the three-phase AC line;
The DC/AC reversible transducers include the first single-phase invertor, the second single-phase invertor, the 3rd single-phase invertor, First single-phase invertor, second single-phase invertor, the 3rd single-phase invertor respectively with the frequency converter three Cross streams input terminal corresponds to connection;
First single-phase invertor, second single-phase invertor, the 3rd single-phase invertor include:Single-phase half Bridge inverter either single-phase full-bridge inverter and electrical with the single phase half bridge inverter or the single-phase full-bridge inverter The filter circuit of connection.
Preferably, the single-phase full-bridge inverter includes the first bridge arm, the second bridge arm, the first filter capacitor C1, and described the One bridge arm is in parallel with second bridge arm, and first bridge arm and second bridge arm include the full-control type device of two series connection Part;
The filter circuit includes the first filter capacitor C1 and LCL filter, and the LCL filter includes the first inductance L1, the second inductance L2 and the second filter capacitor C2, one end of the first inductance L1 are connected with the midpoint of first bridge arm, separately One end is connected with one end of the second inductance L2 and one end of the second filter capacitor C2, and the second inductance L2's is another One end is electrically connected with the frequency converter;
The first filter capacitor C1 is in parallel with first bridge arm, and the both ends of the first filter capacitor C1 are as friendship Flow side;
One end of the second filter capacitor C2 is electrically connected with the midpoint of second bridge arm;
Described second in first single-phase invertor, second single-phase invertor, the 3rd single-phase invertor It is connected with each other between the midpoint of bridge arm.
Preferably, the wholly-controled device includes power electronic devices and two poles in parallel with the power electronic devices Pipe, the power electronic devices is metal-oxide-semiconductor or thyristor.
Preferably, the energy-storage module includes:The first super electricity being electrically connected with the first single-phase invertor module Hold energy-storage module, the second super capacitor energy-storage module being electrically connected with the second single-phase invertor module, with the described 3rd The 3rd super capacitor energy-storage module that single-phase invertor module is electrically connected;
The first super capacitor energy-storage module, the second super capacitor energy-storage module, the 3rd super capacitor storage Energy module includes some branches parallel with one another, and the ultracapacitor of multiple series connection is included on each branch.
Preferably, it is described to rapidly switch off that module includes three-phase ac contactor or three parallel with one another and be separately positioned on Thyristor on the three-phase AC line;
The PCU Power Conditioning Unit for elevator further includes shut-off control module;
The shut-off control module, is electrically connected with the output terminal of the system power supply and the module that rapidly switches off, For gathering the voltage of system power supply output alternating current, and judge the system power supply output alternating current voltage whether In the voltage range of setting, if not existing, output electric signal rapidly switches off module to described, and rapidly switching off module described in control breaks Open, it is on the contrary then output electric signal rapidly switch off module to described, rapidly switched off described in control module connection.
Preferably, the frequency converter includes:Frequency converter rectification unit, inversion unit;
The frequency converter rectification unit, with it is described rapidly switch off module, the exchange side of the DC/AC reversible transducers, with And the inversion unit is electrically connected, for receiving the alternating current from the system power supply, or from the DC/ The alternating current of AC reversible transducers, and direct current is obtained after alternating current is carried out rectification, and direct current is delivered to the frequency conversion Device inversion unit;
The inversion unit, the alternating current for direct current to be converted to setpoint frequency are delivered to the elevator and move Power apparatus.
Implement the utility model, have the advantages that:When system power supply works normally, that is, the alternating current that exports Voltage in setting voltage range, to elevator non-powered device, elevator power device power, and returns energy-storage module and fills by system power supply Electricity.When system power supply works normally, DC/AC reversible transducers are operated in current source mode, can compensate frequency converter generation Harmonic wave.
When system power supply breaks down, that is, the voltage of the alternating current exported is not in setting voltage range, output exchange The magnitude of voltage of electricity is more than setting voltage range maximum or less than voltage range minimum value is set, and rapidly switches off module disconnection, DC/AC reversible transducers working status is become by current source mode turns to voltage source mode, and energy-storage module passes through DC/AC two-way changings Device DC side provides energy for the exchange output of DC/AC reversible transducers, and DC/AC reversible transducers are moved as voltage source for elevator Power apparatus and the power supply of elevator non-powered device, to maintain the normal work of elevator.
Therefore, the utility model can use the charging module of elevator landing apptss emergency power supply and energy-storage module respectively The DC/AC reversible transducers and energy-storage module of energy-saving device of elevator substitute, and thus eliminate elevator landing apptss answers urgent telegram The charging module and energy-storage module in source, substantially reduce elevator cost, and simplify elevator installation and maintenance work, can also realize Elevator landing function, and cause the power equipment of elevator to have the function of that high-low voltage is passed through.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the circuit diagram of the PCU Power Conditioning Unit provided by the utility model for elevator.
Fig. 2 is the circuit diagram of the single-phase full bridge circuit of the PCU Power Conditioning Unit provided by the utility model for elevator.
Fig. 3 is the electricity of the first super capacitor energy-storage module of the PCU Power Conditioning Unit provided by the utility model for elevator Lu Tu.
Fig. 4 be the PCU Power Conditioning Unit provided by the utility model for elevator rapidly switch off module correspond to three it is two-way The schematic diagram of thyristor.
Embodiment
The utility model provides a kind of PCU Power Conditioning Unit for elevator, as shown in Figure 1, the device includes:Frequency converter 1st, energy-storage module 2, DC/AC reversible transducers 3, rapidly switch off module 4, system power supply 5.
Energy-storage module 2 and the DC side of DC/AC reversible transducers 3 are electrically connected, and charging storage is carried out for receiving direct current Energy is deposited, and conveys direct current to DC/AC reversible transducers 3.
System power supply 5 is electrically connected by rapidly switching off module 4 with frequency converter 1 and DC/AC reversible transducers 3, for defeated Galvanic electricity is delivered to frequency converter 1 and DC/AC reversible transducers 3.
The exchange side of DC/AC reversible transducers 3 and frequency converter 1 and rapidly switch off module 4 and be electrically connected, be for that will come from The alternating current of system power supply 5 is converted to direct current, and direct current is delivered to energy-storage module 2, charges to energy-storage module 2, also in the future Alternating current is converted to from the direct current of energy-storage module 2, and alternating current is delivered to frequency converter 1;And DC/AC reversible transducers 3 Exchange side as input terminal when, the input terminal of DC/AC reversible transducers 3 is current source, i.e., input terminal provide stabling current, When the DC side of DC/AC reversible transducers 3 is as input terminal, the input terminal of DC/AC reversible transducers 3 is voltage source, that is, is inputted End provides burning voltage.
Rapidly switch off module 4 be used for connection between control system power supply 5 and frequency converter 1 and DC/AC reversible transducers 3 with Disconnect.
Frequency converter 1 is used to the alternating current from DC/AC reversible transducers 3 and from system power supply 5 carrying out rectification, obtains Direct current, and the DC conversion that rectification is obtained is conveyed to elevator power device 7 for the alternating current of setpoint frequency.Elevator power Device 7 is the motor of elevator.
Further, the exchange side of DC/AC reversible transducers 3 is also electrically connected with elevator non-powered device 8, in DC/AC During the exchange side output alternating current of reversible transducer 3, power to elevator non-powered device 8.
System power supply 5 is electrically connected by rapidly switching off module 4 with elevator non-powered device 8, for conveying alternating current extremely Elevator non-powered device 8, powers to elevator non-powered device 8.Wherein, elevator non-powered device 8 includes lighting device, ventilation Socket and switch in device, elevator etc..
Rapidly switch off the connecting and disconnecting that module 4 is additionally operable between control system power supply 5 and elevator non-powered device 8.
Further, the alternating current that system power supply 5 exports is three-phase alternating current, is passed through between system power supply 5 and frequency converter 1 Three-phase AC line connects, and rapidly switches off module 4 and is arranged on three-phase AC line.
DC/AC reversible transducers 3 include the first single-phase invertor 31, the second single-phase invertor 32, the 3rd single-phase invertor 33, the first single-phase invertor 31, the second single-phase invertor 32, the 3rd single-phase invertor 33 three-phase alternating current with frequency converter 1 respectively Input terminal corresponds to connection.
First single-phase invertor 31, the second single-phase invertor 32, the 3rd single-phase invertor 33 include:Single-phase semi-bridge inversion Device either single-phase full-bridge inverter and the filtered electrical being electrically connected with single phase half bridge inverter or single-phase full-bridge inverter Road.
Further, as shown in Fig. 2, single-phase full-bridge inverter includes the first bridge arm, the second bridge arm, the first filter capacitor C1, the first bridge arm is in parallel with the second bridge arm, and the first bridge arm and the second bridge arm include the wholly-controled device of two series connection.
Filter circuit includes the first filter capacitor C1 and LCL filter, and LCL filter includes the first inductance L1, the second electricity Sense L2 and the second filter capacitor C2, one end of the first inductance L1 are connected with the midpoint of the first bridge arm, the other end and the second inductance L2 One end and the second filter capacitor C2 one end connection, the other end and the frequency converter 1 of the second inductance L2 are electrically connected.
First filter capacitor C1 is in parallel with the first bridge arm, and the both ends of the first filter capacitor C1 are as exchange side.
One end of second filter capacitor C2 is electrically connected with the midpoint of the second bridge arm.
First single-phase invertor 31, the second single-phase invertor 32, the midpoint of the second bridge arm in the 3rd single-phase invertor 33 Between be connected with each other.
Further, wholly-controled device includes power electronic devices and the diode in parallel with power electronic devices, electricity Power electronic device is metal-oxide-semiconductor or thyristor.
Further, energy-storage module 2 includes:Stored up with the first super capacitor that 31 module of the first single-phase invertor is electrically connected Energy 21 energy-storage module 2 of module, 22 energy storage of the second super capacitor energy-storage module being electrically connected with 32 module of the second single-phase invertor Module 2,23 energy-storage module 2 of the 3rd super capacitor energy-storage module being electrically connected with 33 module of the 3rd single-phase invertor.
As shown in figure 3,21 energy-storage module 2 of the first super capacitor energy-storage module, 22 energy storage of the second super capacitor energy-storage module Module 2,23 energy-storage module 2 of the 3rd super capacitor energy-storage module include some articles of branches parallel with one another, on each branch Include the ultracapacitor of multiple series connection.
Further, rapidly switch off that module 4 includes three-phase ac contactor or three parallel with one another and be separately positioned on Thyristor on three-phase AC line;Three thyristors parallel with one another are as shown in Figure 4.
PCU Power Conditioning Unit for elevator further includes shut-off control module 6.Turn off control module 6 and system power supply 5 Output terminal is electrically connected, and is also electrically connected with rapidly switching off module 4, and shut-off control module 6 is used for the output of acquisition system power supply 5 and hands over The voltage of galvanic electricity, and judge that system power supply 5 exports the voltage of alternating current whether in the voltage range of setting, it is defeated if not existing Go out electric signal and rapidly switch off module 4 to module 4, control is rapidly switched off and disconnect system power supply 5 and frequency converter 1, elevator non-powered dress The connection between 8, DC/AC reversible transducers 3 is put, on the contrary then output electric signal rapidly switches off mould to module 4, control is rapidly switched off Block 4 will be connected between system power supply 5 and frequency converter 1, elevator non-powered device 8, DC/AC reversible transducers 3.
Further, frequency converter 1 includes:Frequency converter rectification unit 11, inversion unit 12.
Frequency converter rectification unit 11 is inverse with rapidly switching off module 4, the exchange side of DC/AC reversible transducers 3 and frequency converter Become unit 12 to be electrically connected, for receiving the alternating current from system power supply 5, or the exchange from DC/AC reversible transducers 3 Electricity, and direct current is obtained after alternating current is carried out rectification, and direct current is delivered to inversion unit 12.
Inversion unit 12, the alternating current for direct current to be converted to setpoint frequency are delivered to elevator power device 7。
PCU Power Conditioning Unit workflow provided by the utility model for elevator is as follows:In 5 normal work of system power supply When making, system power supply 5 exports the voltage of alternating current in setting voltage range, and system power supply 5 conveys three-phase alternating current to frequency conversion Device 1 and DC/AC reversible transducers 3, also convey three-phase alternating current to elevator non-powered device 8, are supplied to elevator non-powered device 8 Electricity.Alternating current progress rectification is obtained direct current by frequency converter 1, and direct current be reverse into the alternating current of setpoint frequency, and will The alternating current is delivered to elevator power device 7, powers for elevator power device 7.On the other hand, DC/AC reversible transducers 3 by Exchange side receive alternating current after, the exchange side is as current source, there is provided stabling current, DC/AC reversible transducers 3 by alternating current into Direct current is obtained after row rectification, which is delivered to energy-storage module 2, is charged to energy-storage module 2, to realize depositing for energy Storage.Also, when system power supply 5 works normally, DC/AC reversible transducers 3 are operated in current source mode, can compensate frequency converter 1 harmonic wave produced.
When system power supply 5 breaks down, system power supply 5 exports the voltage of alternating current not in setting voltage range, i.e., The magnitude of voltage that system power supply 5 exports alternating current is more than the maximum of setting voltage range or the minimum less than setting voltage range Value, by rapidly switch off module 4 disconnect system power supply 5 and frequency converter 1, DC/AC reversible transducers 3, elevator non-powered device 8 it Between connection.At this time, energy-storage module 2 conveys direct current to DC/AC reversible transducers 3, the DC side of DC/AC reversible transducers 3 Receive the direct current, and the DC side of DC/AC reversible transducers 3 ensures the voltage stabilization of input terminal as voltage source.
After direct current is carried out inversion processing by DC/AC reversible transducers 3, alternating current is obtained, and alternating current is delivered to change Frequency device 1, the alternating current received progress rectification is obtained direct current by frequency converter 1, then the direct current is carried out inversion processing, is obtained The alternating current of setpoint frequency, and the alternating current is delivered to elevator power device 7, power to elevator power device 7.
When system power supply 5 breaks down, 3 working status of DC/AC reversible transducers is become by current source mode turns to voltage Source module, energy-storage module 2 provide energy by 3 DC side of DC/AC reversible transducers for the exchange output of DC/AC reversible transducers 3 Amount, DC/AC reversible transducers 3 are powered as voltage source for elevator power device 7 and elevator non-powered device 8, to maintain elevator Normal work, when system power supply 5 recover work normally after, DC/AC reversible transducers 3 then switch to electric current by voltage source mode Source module, rapidly switches off module 4 and is switched on, and system power supply 5 is powered for elevator power device 7 and elevator non-powered device 8, maintains The normal work of elevator.
To sum up, the PCU Power Conditioning Unit provided by the utility model for elevator, passes through application single-phase inversion technology, super The energy storage technology of capacitor, and technology is rapidly switched off, uniformly realize Elevator landing, elevator energy-saving, active power filtering and height electricity More function is pressed to wear, which greatly reduces elevator cost, and simplifies elevator installation and maintenance work.
The charging module of the emergency power supply of elevator landing apptss and energy-storage module 2 are used elevator section by the utility model respectively The single-phase invertor and energy-storage module 2 of energy device substitute, and thus eliminate the charging mould of the emergency power supply of elevator landing apptss Block and energy-storage module 2, realize sharing for charge-discharge modules and energy-storage module 2, substantially reduce elevator cost, and simplify electricity Terraced installation and maintenance work.
PCU Power Conditioning Unit provided by the utility model for elevator not only has the response speed being exceedingly fast, treats engine efficiency High, working stability, and it is simple in structure, product cost is effectively saved, easily operated easy to safeguard, sexual valence is higher.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to Assert that the specific implementation of the utility model is confined to these explanations.For the ordinary skill of the utility model technical field For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded To belong to the scope of protection of the utility model.

Claims (8)

  1. A kind of 1. PCU Power Conditioning Unit for elevator, it is characterised in that including:The two-way change of frequency converter, energy-storage module, DC/AC Parallel operation, rapidly switch off module, system power supply;
    The energy-storage module, is electrically connected with the DC side of the DC/AC reversible transducers, charges for receiving direct current Energy is stored, and conveys direct current to the DC/AC reversible transducers;
    The system power supply, is electrically connected by the module that rapidly switches off with the frequency converter and the DC/AC reversible transducers Connect, for conveying alternating current to the frequency converter and the DC/AC reversible transducers;
    The DC/AC reversible transducers, its exchange side is electrically connected with the frequency converter and the module that rapidly switches off, for inciting somebody to action Alternating current from the system power supply is converted to direct current, and direct current is delivered to the energy-storage module, to the energy storage Module charges, and the direct current from the energy-storage module also is converted to alternating current, and alternating current is delivered to the frequency converter; And when the exchange side of the DC/AC reversible transducers is as input terminal, the input terminal of the DC/AC reversible transducers is electric current Source, when the DC side of the DC/AC reversible transducers is as input terminal, the input terminal of the DC/AC reversible transducers is voltage Source;
    It is described to rapidly switch off module, for control the system power supply and the frequency converter and the DC/AC reversible transducers it Between connecting and disconnecting;
    The frequency converter, it is whole for the alternating current from the DC/AC reversible transducers and from the system power supply to be carried out Stream, obtains direct current, and the DC conversion that rectification is obtained is conveyed to elevator power device for the alternating current of setpoint frequency.
  2. 2. the PCU Power Conditioning Unit according to claim 1 for elevator, it is characterised in that the DC/AC two-way changings The exchange side of device is also electrically connected with elevator non-powered device;
    The system power supply is electrically connected by the module that rapidly switches off with the elevator non-powered device, is exchanged for conveying Electricity is to the elevator non-powered device;
    Connecting and disconnecting that are described to rapidly switch off module, being additionally operable between control system power supply and the elevator non-powered device.
  3. 3. the PCU Power Conditioning Unit according to claim 1 for elevator, it is characterised in that the system power supply output Alternating current is three-phase alternating current, is connected between the system power supply and the frequency converter by three-phase AC line, described quick Shut-off module is arranged on the three-phase AC line;
    The DC/AC reversible transducers include the first single-phase invertor, the second single-phase invertor, the 3rd single-phase invertor, described First single-phase invertor, second single-phase invertor, the 3rd single-phase invertor intersect with the three of the frequency converter respectively Flow input terminal and correspond to connection;
    First single-phase invertor, second single-phase invertor, the 3rd single-phase invertor include:Single-phase semi-bridge is inverse Become device and either single-phase full-bridge inverter and be electrically connected with the single phase half bridge inverter or the single-phase full-bridge inverter Filter circuit.
  4. 4. the PCU Power Conditioning Unit according to claim 3 for elevator, it is characterised in that the single-phase full-bridge inverter Including the first bridge arm, the second bridge arm, the first filter capacitor C1, first bridge arm is in parallel with second bridge arm, and described One bridge arm and second bridge arm include the wholly-controled device of two series connection;
    The filter circuit includes the first filter capacitor C1 and LCL filter, and the LCL filter includes the first inductance L1, the Two inductance L2 and the second filter capacitor C2, one end of the first inductance L1 are connected with the midpoint of first bridge arm, the other end It is connected with one end of the second inductance L2 and one end of the second filter capacitor C2, the other end of the second inductance L2 It is electrically connected with the frequency converter;
    The first filter capacitor C1 is in parallel with first bridge arm, and the both ends of the first filter capacitor C1 are as exchange Side;
    One end of the second filter capacitor C2 is electrically connected with the midpoint of second bridge arm;
    Second bridge arm in first single-phase invertor, second single-phase invertor, the 3rd single-phase invertor Midpoint between be connected with each other.
  5. 5. the PCU Power Conditioning Unit according to claim 4 for elevator, it is characterised in that the wholly-controled device includes Power electronic devices and the diode in parallel with the power electronic devices, the power electronic devices are metal-oxide-semiconductor or crystalline substance Brake tube.
  6. 6. the PCU Power Conditioning Unit according to claim 3 for elevator, it is characterised in that the energy-storage module includes: The first super capacitor energy-storage module being electrically connected with the first single-phase invertor module, with the second single-phase invertor mould The second super capacitor energy-storage module that block is electrically connected, the 3rd super electricity being electrically connected with the 3rd single-phase invertor module Hold energy-storage module;
    The first super capacitor energy-storage module, the second super capacitor energy-storage module, the 3rd super capacitor energy-storage mould Block includes some branches parallel with one another, and the ultracapacitor of multiple series connection is included on each branch.
  7. 7. the PCU Power Conditioning Unit according to claim 3 for elevator, it is characterised in that described to rapidly switch off module bag Include three-phase ac contactor or three thyristors that are parallel with one another and being separately positioned on the three-phase AC line;
    The PCU Power Conditioning Unit for elevator further includes shut-off control module;
    The shut-off control module, is electrically connected with the output terminal of the system power supply and the module that rapidly switches off, is used for The voltage of the system power supply output alternating current is gathered, and judges whether the voltage of the system power supply output alternating current is setting Voltage range in, if not existing, output electric signal rapidly switch off module to described, rapidly switched off described in control module disconnection, It is on the contrary then output electric signal rapidly switch off module to described, rapidly switched off described in control module connection.
  8. 8. the PCU Power Conditioning Unit according to claim 3 for elevator, it is characterised in that the frequency converter includes:Become Frequency device rectification unit, inversion unit;
    The frequency converter rectification unit, module, the exchange side of the DC/AC reversible transducers, Yi Jisuo are rapidly switched off with described The electric connection of inversion unit is stated, for receiving the alternating current from the system power supply, or it is double from the DC/AC To the alternating current of converter, and will alternating current carry out rectification after obtain direct current, and it is inverse that direct current is delivered to the frequency converter Become unit;
    The inversion unit, the alternating current for direct current to be converted to setpoint frequency are delivered to the elevator power dress Put.
CN201721147526.8U 2017-09-08 2017-09-08 A kind of PCU Power Conditioning Unit for elevator Active CN207320846U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108861910A (en) * 2018-06-29 2018-11-23 南宁学院 A kind of industrial electro section of ladder based on super capacitor can control adjusting method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108861910A (en) * 2018-06-29 2018-11-23 南宁学院 A kind of industrial electro section of ladder based on super capacitor can control adjusting method
CN108861910B (en) * 2018-06-29 2020-05-26 南宁学院 Industrial elevator energy-saving control and regulation method based on super capacitor

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