CN203199825U - Elevator energy-saving energy feedback control system - Google Patents
Elevator energy-saving energy feedback control system Download PDFInfo
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- CN203199825U CN203199825U CN 201320072007 CN201320072007U CN203199825U CN 203199825 U CN203199825 U CN 203199825U CN 201320072007 CN201320072007 CN 201320072007 CN 201320072007 U CN201320072007 U CN 201320072007U CN 203199825 U CN203199825 U CN 203199825U
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Abstract
The utility model relates to an elevator energy-saving energy feedback control system. The elevator energy-saving energy feedback control system comprises an inverse feedback control system and an elevator operation control system. The inverse feedback control system is mainly composed of a synchronizing signal detection unit, a central processing unit, a power inversion unit, a direct current bus current detection unit, a direct current bus voltage detection unit and a logic protection and control unit. The elevator operation control system is mainly composed of an elevator frequency converter and an elevator drive motor. The elevator energy-saving energy feedback control system has the advantages that the systematic design is reasonable, the system integration degree is high, the size is small, the utilization rate of the direct current voltage is high, the work efficiency of energy feedback inversion is high, and total harmonic distortion of inversion electric energy is small.
Description
Technical field
The utility model relates to a kind of elevator energy-saving energy feedback control system.
Background technology
Present elevator in use substantially all is frequency-changing elevator, the mechanical kinetic energy that produces when the frequency-changing elevator startup reaches highest running speed also is maximum, and before frequency-changing elevator arrival is top, will progressively slow down, and the process of this deceleration is exactly the process that elevator discharges mechanical kinetic energy.Variable-frequency governor can convert the mechanical energy of this motion process to electric energy by electrical motor and deposit and store up in large electric capacity.In fact, the electric energy that is transmitted back in this large electric capacity is more, and capacitance voltage will be higher, if can not in time discharge these electric energy of capacitor stores, elevator just may produce the overvoltage fault, can directly cause the elevator can't normal operation.And if in running process of elevator, rationally use the elevator feedback energy-saving device, just can effectively the direct current energy that stores in the electric capacity be converted easily to AC energy and in time carry electrical network.So not only realized the economize on electricity purpose, but also can remove the use without power consumption heating high-power resistance, can greatly improve the operation of elevator device, and avoided that the system effectiveness that causes because of Energy in use resistance is low, ambient temperature is crossed the shortcomings such as high.
The utility model content
It can be alternating current with the timely inversion of electric energy that is stored in the frequency converter dc bus capacitor that technical problem to be solved in the utility model is to provide a kind of, and feeds back to electrical network, thereby reaches energy-conservation purpose elevator energy-saving energy feedback control system.
A kind of elevator energy-saving energy feedback control system, comprise inversion feedback control system and elevator motion control system, described inversion feedback control system mainly is comprised of synchronous signal detection unit, central processing unit, power inverting unit, dc bus current detecting unit, DC bus-bar voltage detecting unit, virtual protection control unit; Described elevator motion control system mainly is comprised of elevator frequency converter and elevator drive motor.
Described synchronous signal detection unit is connected with described central processing unit, mainly is the function that makes inversion process and electrical network phase preserving synchronized relation;
Described central processing unit is connected with described synchronous signal detection unit, described power inverting unit, and main function is the signal that the described synchronous signal detection unit of analyzing and processing and described power cell transmit;
Described power inverting unit is connected with described virtual protection control unit, described elevator frequency converter, mainly is that direct current energy is transformed into AC energy, carries out energy back;
Described dc bus current detecting unit is connected with described virtual protection control unit, described elevator frequency converter, mainly detects the electric current that described elevator frequency converter transmits by dc bus;
Described DC bus-bar voltage detecting unit is connected with described, described elevator frequency converter, mainly detects the voltage that described elevator frequency converter transmits by dc bus;
Described virtual protection control unit is connected with described central processing unit, described power inverting unit, described dc bus current detecting unit and described DC bus-bar voltage detecting unit, mainly has the multi-protective functions such as overcurrent, overvoltage;
Described elevator frequency converter is connected with described power inverting unit, described dc bus current detecting unit, described DC bus-bar voltage detecting unit and described elevator drive motor, Main Function is by changing the frequency of alternating current, energy-conservation and speed governing, and the automatic control of the system of realization and high precision control;
Described elevator drive motor is connected with described elevator frequency converter, mainly is the operation that drives elevator.
The utlity model has following advantage: the characteristics such as system is reasonable, level of integrated system is high, volume is little, the vdc degree of utilization is high, the total harmonic distortion of the high efficiency of energy feedback inverting, inversion electric energy is little.
Description of drawings
Fig. 1 is the structure composition diagram of described a kind of elevator energy-saving energy feedback control system.
The specific embodiment
The utility model is described in further detail below in conjunction with embodiment, but protection domain of the present utility model is not limited to this.
With reference to a kind of elevator energy-saving energy feedback control system of Fig. 1, comprise inversion feedback control system 1 and elevator motion control system 2, described inversion feedback control system mainly is comprised of synchronous signal detection unit 11, central processing unit 12, power inverting unit 13, dc bus current detecting unit 14, DC bus-bar voltage detecting unit 15, virtual protection control unit 16; Described elevator motion control system 2 mainly is comprised of elevator frequency converter 21 and elevator drive motor 22.
Described synchronous signal detection unit 11 is connected with described central processing unit 12, mainly is the function that makes inversion process and electrical network phase preserving synchronized relation;
Described central processing unit 12 is connected with described synchronous signal detection unit 11, described power inverting unit 13, and main function is the signal that the described synchronous signal detection unit 11 of analyzing and processing and described power cell transmit;
Described power inverting unit 13 is connected with described virtual protection control unit 16, described elevator frequency converter 21, mainly is that direct current energy is transformed into AC energy, carries out energy back;
Described dc bus current detecting unit 14 is connected with described virtual protection control unit 16, described elevator frequency converter 21, mainly detects the electric current that described elevator frequency converter 21 transmits by dc bus;
Described DC bus-bar voltage detecting unit 15 is connected with described elevator frequency converter 21, mainly detects the voltage that described elevator frequency converter 21 transmits by dc bus;
Described virtual protection control unit 16 is connected with described central processing unit 12, described power inverting unit 13, described dc bus current detecting unit 14 and described DC bus-bar voltage detecting unit 15, mainly has the multi-protective functions such as overcurrent, overvoltage;
Described elevator frequency converter 21 is connected with described power inverting unit 13, described dc bus current detecting unit 14, described DC bus-bar voltage detecting unit 15 and described elevator drive motor 22, Main Function is by changing the frequency of alternating current, energy-conservation and speed governing, and the automatic control of the system of realization and high precision control;
Described elevator drive motor 22 is connected with described elevator frequency converter 21, mainly is the operation that drives elevator.
The energy back process is as follows:
When elevator rising load during light or snap catch, elevator is because system's counterweight makes described elevator drive motor 22 work in generating state, this moment, the transmission of energy was reverse, give described elevator frequency converter 21 by described elevator drive motor 22 with the mechanical energy anti-pass, this part energy will be accumulated on the filter capacitor, produce the pump up voltage, the filter capacitor both end voltage is that DC bus-bar voltage is elevated to above behind the grid line voltage peak, the rectifier bridge reverse blocking, when DC bus-bar voltage continues to raise, when surpassing the operating voltage that starts active-inverter, inverter circuit is started working, energy inversion on the dc bus is fed back to electrical network, be connected to simultaneously the difference that high frequency magnetic core chokes reactor between energy feedback system and the three-phase alternating current electrical network will absorb DC bus-bar voltage and grid line voltage, to reduce the impact on line voltage, along with this part energy discharge, after DC bus-bar voltage fell back to setting value, inverter circuit quit work.
Above a kind of elevator energy-saving energy feedback control system provided by the utility model is described in detail; having used specific case herein sets forth principle of the present utility model and embodiment; the explanation of above embodiment just is used for helping to understand thought of the present utility model; simultaneously for one of ordinary skill in the art; according to other embodiments that the technical solution of the utility model draws, be the utility model claim scope and protect.
Claims (3)
1. elevator energy-saving energy feedback control system, comprise inversion feedback control system and elevator motion control system, described inversion feedback control system mainly is comprised of synchronous signal detection unit, central processing unit, power inverting unit, dc bus current detecting unit, DC bus-bar voltage detecting unit, virtual protection control unit; Described elevator motion control system mainly is comprised of elevator frequency converter and elevator drive motor; Described synchronous signal detection unit is connected with described central processing unit; described central processing unit and described synchronous signal detection unit; described power inverting unit connects; described power inverting unit and described virtual protection control unit; described elevator frequency converter connects; described dc bus current detecting unit and described virtual protection control unit; described elevator frequency converter connects; described DC bus-bar voltage detecting unit is connected with described elevator frequency converter; described virtual protection control unit and described central processing unit; described power inverting unit; described dc bus current detecting unit and described DC bus-bar voltage detecting unit connect; described elevator frequency converter and described power inverting unit; described dc bus current detecting unit; described DC bus-bar voltage detecting unit and described elevator drive motor connect, and described elevator drive motor is connected with described elevator frequency converter.
2. elevator energy-saving energy feedback control system as claimed in claim 1, it is characterized in that: described power inverting unit is the IPM Intelligent Power Module.
3. elevator energy-saving energy feedback control system as claimed in claim 1, it is characterized in that: it is on-off element that IGBT is adopted in the loop of described elevator frequency converter, and maximum modulating frequency can reach 12.08KHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320072007 CN203199825U (en) | 2013-02-08 | 2013-02-08 | Elevator energy-saving energy feedback control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320072007 CN203199825U (en) | 2013-02-08 | 2013-02-08 | Elevator energy-saving energy feedback control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203199825U true CN203199825U (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320072007 Expired - Fee Related CN203199825U (en) | 2013-02-08 | 2013-02-08 | Elevator energy-saving energy feedback control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655979A (en) * | 2016-12-01 | 2017-05-10 | 广州极飞科技有限公司 | Aircraft and overvoltage protection method and device of electronic speed regulator thereof |
-
2013
- 2013-02-08 CN CN 201320072007 patent/CN203199825U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655979A (en) * | 2016-12-01 | 2017-05-10 | 广州极飞科技有限公司 | Aircraft and overvoltage protection method and device of electronic speed regulator thereof |
| CN106655979B (en) * | 2016-12-01 | 2019-07-26 | 广州极飞科技有限公司 | The over-voltage protection method and device of aircraft and its electron speed regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170116 Address after: Yiwu City, Hangzhou Temple Town Tower Road No. 333 of 322000 cities in Zhejiang Province Patentee after: ZHEJIANG WEITE ELEVATOR CO.,LTD. Address before: 321004 Zhejiang province Jinhua City Yingbin Road No. 688 Patentee before: Zhejiang Normal University |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20220208 |