CN202616870U - Elevator emergency power supply apparatus based on super capacitor - Google Patents
Elevator emergency power supply apparatus based on super capacitor Download PDFInfo
- Publication number
- CN202616870U CN202616870U CN 201220261482 CN201220261482U CN202616870U CN 202616870 U CN202616870 U CN 202616870U CN 201220261482 CN201220261482 CN 201220261482 CN 201220261482 U CN201220261482 U CN 201220261482U CN 202616870 U CN202616870 U CN 202616870U
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- super capacitor
- master control
- bus
- chopper circuit
- bidirectional
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Abstract
The utility model provides an elevator emergency power supply apparatus based on a super capacitor. The apparatus comprises a main control board bus, a bidirectional direct current chopper circuit, a super capacitor, a three-phase inverter and a main control board. The direct current bus is connected with a motor through a frequency converter. The bidirectional direct current chopper circuit is respectively connected with the super capacitor and the direct current bus. The three-phase inverter is respectively connected with the direct current bus and a main control power supply module. The main control board is respectively in connected with a control terminal of the three-phase inverter and a control terminal of the bidirectional direct current chopper circuit. The main control board is connected with the direct current bus via a first voltage sensor and is connected with the super capacitor via a second voltage sensor. The main control board is connected with an output terminal of the three-phase inverter through a first current sensor and is also connected with the bidirectional direct current chopper circuit through a second current sensor. The elevator emergency power supply apparatus based on the super capacitor is long in service life, simple in structure and high in reliability.
Description
Technical field:
The utility model relates to the elevator fitting field, specifically is a kind of elevator emergency electric supply installation based on ultracapacitor.
Background technology:
Shortcomings such as the Emergency power supply unit in the elevator generally adopts lead acid accumulator as energy-storage units at present, and this battery exists useful life short, and is difficult in maintenance; This in addition Emergency power supply unit need be taken over the control system of whole elevator when work, and motor-driven need be provided, the power supply of door machine; The power supply and the control of band-type brake power supply and other control circuit; Therefore the control system of this Emergency power supply unit is comparatively complicated, thereby the fault point is more, and reliability is low.
Ultracapacitor is a kind of novel energy-storing element; This element utilizes electrode active material and electrolyte formation electric double layer to carry out the physical charge storage and discharges; Its characteristic is between storage battery and electrochemical capacitor; Have long service life, the charging interval is short, discharging current is big, advantage such as pollution-free, receives user's favor.
The utility model content:
The main purpose of the utility model is, overcomes existing technological deficiency, and the elevator emergency electric supply installation based on ultracapacitor that a kind of life-span is high, simple in structure, reliability is high is provided.
The technical scheme that the utility model provides is: the utility model provides a kind of elevator emergency electric supply installation based on ultracapacitor; It comprises dc bus, bidirectional, dc chopper circuit, super capacitor, three-phase inverter, master control borad; Said dc bus connects motor through frequency converter; Said bidirectional, dc chopper circuit is connected with super capacitor and dc bus respectively; Said three-phase inverter is connected with dc bus and master control supply module respectively; Said master control borad connects the control end of three-phase inverter and bidirectional, dc chopper circuit respectively, and said master control borad is connected with dc bus through first voltage sensor, and master control borad is connected with super capacitor through second voltage sensor; Master control borad is connected with the output of three-phase inverter through first current sensor, and master control borad is connected with the bidirectional, dc chopper circuit through second current sensor.
In the utility model; The bidirectional, dc chopper circuit is connected between dc bus and the super capacitor; When the super capacitor electric energy is not enough; Step-down through the bidirectional, dc chopper circuit is transported to electric energy the super capacitor from dc bus, and when grid cut-off, super capacitor is transported to electric energy the dc bus from super capacitor through the bidirectional, dc chopper circuit; Dc bus is supplied power to motor through the frequency converter drive motors; Dc bus also is reverse into three-phase alternating current through three-phase inverter and directly connects the master control system power supply of the master control supply module of elevator to elevator, and master control borad connects the control end of three-phase inverter and bidirectional, dc chopper circuit respectively, controls three-phase inverter and bidirectional, dc chopper circuit; And through two current sensors and two voltage sensors sample respectively DC bus-bar voltage, super capacitor voltage, the three-phase output current of three-phase inverter and the operating current of bidirectional, dc chopper circuit.Adopt this elevator emergency electric supply installation to use the original dc bus and the partial circuit of frequency converter based on ultracapacitor; Realized the two-way flow of energy between dc bus and super capacitor, the electric power-feeding structure when having optimized whole elevator emergency only needs a three-phase inverter can realize three-phase alternating current output; Not needing to establish in addition control system takes over the control of whole elevator; Simple in structure, the fault point is few, and stability and reliability are high.And the life-span of adopting super capacitor can improve whole device as energy-storage travelling wave tube.
As improvement, said elevator emergency electric supply installation based on ultracapacitor also comprises man-machine panel, and said man-machine panel is connected with master control borad.Man-machine panel carries out Communication Control through RS485 mode and master control borad, and parameter setting and look facility can be provided.
Description of drawings:
Accompanying drawing is the theory diagram of the utility model based on the elevator emergency electric supply installation of ultracapacitor;
Embodiment:
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated:
As shown in the figure: the utility model provides a kind of elevator emergency electric supply installation based on ultracapacitor; It comprises dc bus, bidirectional, dc chopper circuit, super capacitor, three-phase inverter, master control borad; Said dc bus connects motor through frequency converter; Said bidirectional, dc chopper circuit is connected with super capacitor and dc bus respectively, and said three-phase inverter is connected with dc bus and master control supply module respectively, and said master control borad connects the control end of three-phase inverter and bidirectional, dc chopper circuit respectively; Said master control borad is connected with dc bus through first voltage sensor; Master control borad is connected with super capacitor through second voltage sensor, and master control borad is connected with the output of three-phase inverter through first current sensor, and master control borad is connected with the bidirectional, dc chopper circuit through second current sensor.Said master control borad adopts the DSP2806 chip to control.6 PWM in its control three-phase inverter export and two PWM of bidirectional, dc chopper circuit export.
The operation principle of the utility model is: the bidirectional, dc chopper circuit is connected between dc bus and the super capacitor, and master control borad is connected with super capacitor through second voltage sensor, sampling super capacitor voltage; When super capacitor voltage lower, when electric energy is not enough, master control borad control bidirectional, dc chopper circuit; Step-down through the bidirectional, dc chopper circuit is transported to electric energy the super capacitor from dc bus, charges, when grid cut-off; Master control borad arrives DC bus-bar voltage through first voltage sensor senses; Decompression is controlled the bidirectional, dc chopper circuit then, and super capacitor is transported to electric energy the dc bus from super capacitor through the bidirectional, dc chopper circuit; Master control borad also is connected with the bidirectional, dc chopper circuit through second current transformer; Be used to monitor the operating current of bidirectional, dc chopper circuit, and the bidirectional, dc chopper circuit is controlled, dc bus is supplied power to motor through the frequency converter drive motors; Dc bus also is reverse into three-phase alternating current through three-phase inverter and directly connects the master control system power supply of the master control supply module of elevator to elevator; What the master control system of elevator adopted is the alternating current of three-phase 380V, and three-phase inverter can directly offer the master control supply module in the elevator, and master control borad is through the three-phase output current of the first current sensor senses three-phase inverter; And through controlling the stable of three-phase inverter realization output voltage, master control borad can also be realized functions such as overvoltage and overcurrent protection through the electric current and the voltage that detect.
As improvement, said elevator emergency electric supply installation based on ultracapacitor also comprises man-machine panel, and said man-machine panel is connected with master control borad.Man-machine panel carries out Communication Control through RS485 mode and master control borad, and parameter setting and look facility can be provided.
Claims (2)
1. elevator emergency electric supply installation based on ultracapacitor; It is characterized in that: it comprises dc bus, bidirectional, dc chopper circuit, super capacitor, three-phase inverter, master control borad; Said dc bus connects motor through frequency converter; Said bidirectional, dc chopper circuit is connected with super capacitor and dc bus respectively, and said three-phase inverter is connected with dc bus and master control supply module respectively, and said master control borad connects the control end of three-phase inverter and bidirectional, dc chopper circuit respectively; Said master control borad is connected with dc bus through first voltage sensor; Master control borad is connected with super capacitor through second voltage sensor, and master control borad is connected with the output of three-phase inverter through first current sensor, and master control borad is connected with the bidirectional, dc chopper circuit through second current sensor.
2. the elevator emergency electric supply installation based on ultracapacitor according to claim 1, it is characterized in that: it also comprises man-machine panel, said man-machine panel is connected with master control borad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220261482 CN202616870U (en) | 2012-05-31 | 2012-05-31 | Elevator emergency power supply apparatus based on super capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220261482 CN202616870U (en) | 2012-05-31 | 2012-05-31 | Elevator emergency power supply apparatus based on super capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202616870U true CN202616870U (en) | 2012-12-19 |
Family
ID=47350540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220261482 Expired - Lifetime CN202616870U (en) | 2012-05-31 | 2012-05-31 | Elevator emergency power supply apparatus based on super capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202616870U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105731263A (en) * | 2016-03-24 | 2016-07-06 | 武汉船用机械有限责任公司 | Control method and device for crane |
-
2012
- 2012-05-31 CN CN 201220261482 patent/CN202616870U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105731263A (en) * | 2016-03-24 | 2016-07-06 | 武汉船用机械有限责任公司 | Control method and device for crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121219 |
|
| CX01 | Expiry of patent term |