CN101723215B - Method for detecting and compensating starting torque of frequency transformer for elevator - Google Patents

Method for detecting and compensating starting torque of frequency transformer for elevator Download PDF

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Publication number
CN101723215B
CN101723215B CN2009101995139A CN200910199513A CN101723215B CN 101723215 B CN101723215 B CN 101723215B CN 2009101995139 A CN2009101995139 A CN 2009101995139A CN 200910199513 A CN200910199513 A CN 200910199513A CN 101723215 B CN101723215 B CN 101723215B
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China
Prior art keywords
elevator
torque
frequency converter
load
starting torque
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CN2009101995139A
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Chinese (zh)
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CN101723215A (en
Inventor
黄洪剑
周根富
吴志敢
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上海永大吉亿电机有限公司
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Publication of CN101723215A publication Critical patent/CN101723215A/en
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Abstract

The invention discloses a method for detecting and compensating the starting torque of a frequency transformer for an elevator, which comprises the following steps of: automatically recording the torque current output by the frequency transformer through the frequency transformer when the elevator operates at constant speed under the condition of different loads, i.e. under the conditions of a light load and a heavy load, thereby forming a group of relational data of a frequency transformer load value and the torque current so as to realize the detecting function of the frequency transformer starting torque for the elevator; when compensating the starting torque in a normal working state, computing by a traditional load linear interpolation algorithm according to the relation of the load value and the torque current recorded in detection, and obtaining a command for outputting the torque current by the frequency transformer so as to realize the compensation and control for the required starting torque when the elevator starts. The invention lowers the requirement of relevant elevator debugging personnel in the aspect of professional standards, greatly improves the debugging efficiency of the elevator, does not need to particularly appoint elevator loads at the scene of debugging, and enables the whole debugging process to be more easily realized.

Description

Starting torque of frequency transformer for elevator detects the method with compensation

Technical field

The present invention relates to a kind of elevator device control method, particularly a kind of detection of elevator variable frequency device starting torque and the method that compensates that is used to have LOAD CELLS.

Background technology

In elevator applications, if when starting the electrical motor output torque required unequal with unbalance load, then can cause car vibrations, take advantage of year quality bad.In order to obtain required torque, the signal that can obtain according to LOAD CELLS by certain calculating, is converted to respective electrical motivation output torque.

In most elevator devices, by manual setting parameter when railway carriage or compartment (corresponding empty torque), non-displacement when making the operation starting of the empty railway carriage or compartment of certain floor elevator; Adjust other parameter (torque when correspondence expires the railway carriage or compartment) again, non-displacement when making the operation starting of the full railway carriage or compartment of certain floor elevator; Other load can obtain required torque by the above-mentioned parameter linear interpolation during operation.

This method of adjustment efficient is lower, and the commissioning staff is had relatively high expectations; Because the influence of external factor such as personnel and friction force, cause and adjust that conformability is very poor as a result, also need to adjust again according to the situation of starting repeatedly; And adjust the on-the-spot load that needs full railway carriage or compartment, implement very difficulty.

Summary of the invention

The method of adjustment efficient that the present invention is directed to present elevator device operation parameter is lower, the commissioning staff is had relatively high expectations, conformability is very poor as a result in adjustment, and the scene of adjusting is difficult for the requirement of the full railway carriage or compartment of realization load, etc. a series of problems, carry out rational improvement, thereby reached the purpose of cost-cutting and raising practicality.

To achieve these goals, the present invention realizes by the following technical solutions:

A kind of starting torque of frequency transformer for elevator detects the method with compensation, and described frequency transformer for elevator is realized detection and compensate function for starting torque by following steps:

(101) load is set under the light condition in the lift car, makes elevator move to counterweight and car flush position then;

(102) when elevator carries out low speed uphill process under the inspecting state, automatically write down at the uniform velocity section output torque current command signal Iq1* by frequency converter, when elevator carries out low speed decline process under the inspecting state, by frequency converter record section output torque current command signal Iq2* at the uniform velocity automatically;

(103) load is set to heavy condition in the lift car, makes elevator move to counterweight and car flush position then;

(104) when elevator carries out low speed uphill process under the inspecting state, automatically write down at the uniform velocity section output torque current command signal Iq3* by frequency converter, when elevator carries out low speed decline process under the inspecting state, by frequency converter record section output torque current command signal Iq4* at the uniform velocity automatically;

(105) current command signal Iq1*, Iq2*, Iq3* and Iq4* and the corresponding load value with record deposits on the cooresponding position of storage element automatically, and is depicted as a data form;

(106) when elevator moves, when the difference of service direction is carried out the compensation of starting torque about the elevator traction machine needs basis;

(107) according to the service direction up and down of elevator input, frequency converter inquires the torque current value of cooresponding output in the storage element automatically from the data sheet that stores;

(108) frequency converter carries out interpolation arithmetic to the torque current value of the output that inquires and the load value of the lift car that weighing obtains, obtain the current command signal Iq5* of the required output torque of control elevator traction machine, the compensation and the control of required starting torque when realizing to elevator starter;

(109) when elevator moves, elevator traction machine need not when up and down the difference of service direction is carried out the compensation of starting torque;

(110) frequency converter is put in order the data sheet in the storage element, and the up-downgoing torque current value of the same load of correspondence is averaged;

(111) load value of frequency converter lift car that this aviation value and weighing are obtained carries out interpolation arithmetic, obtains the current command signal Iq6* of the required output torque of control elevator traction machine, the compensation and the control of required starting torque when realizing elevator starter.

The invention has the advantages that, need not to have improved the debugging efficiency of elevator greatly under the too high prerequisite for related elevator commissioning staff professional standards, and need not to specify elevator load, make debugging more easily realize at the debugging scene.

Description of drawings

Describe the present invention in detail below in conjunction with the drawings and specific embodiments;

Fig. 1 is a circuit block diagram of the present invention.

The specific embodiment

For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the present invention.

As shown in Figure 1, be the simple block diagram of the towing machine elevator device that has LOAD CELLS that driven by frequency converter, as can be seen from the figure, the present invention is based on that this elevator device realizes.

Frequency converter, LOAD CELLS and other elevator device associated components that whole elevator device is formed by the towing machine that has position transduser, by modular units such as speed regulator, current relay, voltage source inverter, current sensor and revolution speed calculating modules are formed, wherein, LOAD CELLS is used for weighing and transmits the load value of elevator; The signal θ of Capstan rotor displacement difference when position transduser is used to export lift car work; The signal θ and the elevator device speed command ω * of the rotor displacement difference that frequency converter is sent by position transduser, convert control commands corresponding to through internal arithmetic, control the towing machine operation, in frequency convertor system, the revolution speed calculating module is used for location information θ is converted into rotary speed information ω, current sensor is used for and will obtains outgoing current Iq, speed regulator is output into current order Iq* in current relay according to the speed command ω * and the velocity information ω that obtain, current relay converts voltage commands U* output to according to outgoing current order Iq* that obtains and outgoing current Iq, and controls the towing machine operation by the cooperation of voltage source inverter.

Owing to the objective of the invention is to, automatically be recorded in by frequency converter under the condition of different loads, be under elevator underloading and the heavily stressed situation, the torque current of frequency converter output when elevator travels at the uniform speed in inspecting state, form the relation database table of one group of load value and torque current, realize the measuring ability of starting torque of frequency transformer for elevator; When elevator under the normal working carries out the compensation of starting torque to frequency converter, frequency converter can be according to the relation database table of load value that is write down and torque current, obtain frequency converter output torque electric current by linear interpolation arithmetic, thus required starting torque compensation and control when realizing for elevator starter.

Because the linear interpolation arithmetic that is used among the present invention is a prior art, before computing, need in the relation database table of load and torque current earlier, inquire the elevator zero load and be load value when being W1, its cooresponding ascending torque current order Iq1 and descending torque current order Iq2, and elevator fully loaded be load value when being W2, its cooresponding ascending torque current order Iq3 and descending torque current order Iq4, and then the load value Wx that measures during the normal operation of hypothesis.

In the time need carrying out the compensation of starting torque according to the difference of the service direction of up-downgoing:

Starting torque electric current when up Iq = Wx - W 1 W 2 - W 1 × ( Iq 3 - Iq 1 ) + Iq 1

Starting torque electric current when descending Iq = Wx - W 1 W 2 - W 1 × ( Iq 4 - Iq 2 ) + Iq 2

When not needing to carry out the compensation of starting torque according to the difference of the service direction of up-downgoing:

The starting torque electric current Iq = Wx - W 1 W 2 - W 1 × ( Iq 3 + Iq 4 2 - Iq 1 + Iq 2 2 ) + Iq 1 + Iq 2 2

Frequency transformer for elevator among the present invention can pass through following steps, realizes detection and compensate function to starting torque:

The first step, load is set under the light condition in the lift car, makes elevator move to counterweight and car flush position then, if be provided with compensated chain in the elevator device, then elevator can be positioned at other any position, and need not to carry out extra compensation process;

Second step, carry out in the process of the low speed rising operation under the inspecting state at elevator, frequency converter writes down speed regulator output torque current command signal Iq1* when traveling at the uniform speed automatically, carry out in the process of the low speed decline operation under the inspecting state at elevator, frequency converter writes down speed regulator output torque current command signal Iq2* when traveling at the uniform speed automatically;

In the 3rd step, load is set to heavy condition in the lift car, makes elevator move to counterweight and car flush position then, if be provided with compensated chain in the elevator device, then elevator can be positioned at other any position, and need not to carry out extra compensation process;

The 4th step, carry out in the process of the low speed rising operation under the inspecting state at elevator, frequency converter writes down speed regulator output torque current command signal Iq3* when traveling at the uniform speed automatically, carry out in the process of the low speed decline operation under the inspecting state at elevator, frequency converter writes down speed regulator output torque current command signal Iq4* when traveling at the uniform speed automatically;

The 5th step, with current command signal Iq1* under the elevator light condition of record and current command signal Iq3* and the Iq4* under Iq2* and the elevator heavy condition, automatically deposit on the cooresponding position of storage element with corresponding load value, thereby be depicted as a data form that reflects torque current and load value relation;

The 6th step is when elevator moves, when the difference of service direction is carried out the compensation of starting torque about the elevator traction machine needs basis;

In the 7th step, according to the command instruction of the service direction about the elevator input, frequency converter inquires under elevator underloading and the heavy condition torque current value of the output of corresponding service direction automatically from the data sheet that stores;

The 8th step, frequency converter is according to the method for existing linear interpolation arithmetic, the torque current value of the output that inquires and the load value of the lift car that weighing obtains are carried out interpolation arithmetic, obtain the current command signal Iq5* of the required output torque of control elevator traction machine, the compensation and the control of required starting torque when realizing to elevator starter;

(109) when elevator moves, elevator traction machine need not when up and down the difference of service direction is carried out the compensation of starting torque;

(110) frequency converter is put in order the data sheet in the storage element, and the up-downgoing torque current value of the same load of correspondence is averaged;

(111) frequency converter is according to the method for existing linear interpolation arithmetic, the load value of the lift car that this aviation value and weighing are obtained carries out interpolation arithmetic, obtain the current command signal Iq6* of the required output torque of control elevator traction machine, the compensation and the control of required starting torque when realizing to elevator starter.

Use the method, effectively raise debugging efficiency, commissioning staff's work quality also be need not too high requirement; When can actv. solving field adjustable,, need just can accomplish the trouble adjusted fully according to the situation of starting repeatedly because the influence of external factor such as personnel and friction force causes the very poor situation of conformability as a result of adjusting; And do not need to specify heavily loaded load when adjusting, make on-the-spot the adjustment yet more easily realize.

More than show and described groundwork of the present invention and principal character and advantage of the present invention.The technical personnel of the industry should be understood; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (1)

1. a starting torque of frequency transformer for elevator detects the method with compensation, it is characterized in that, described frequency transformer for elevator is realized detection and compensate function for starting torque by following steps:
(101) load is set under the light condition in the lift car, makes elevator move to counterweight and car flush position then;
(102) when elevator carries out low speed uphill process under the inspecting state, automatically write down at the uniform velocity section output torque current command signal Iq1* by frequency converter, when elevator carries out low speed decline process under the inspecting state, by frequency converter record section output torque current command signal Iq2* at the uniform velocity automatically;
(103) load is set to heavy condition in the lift car, makes elevator move to counterweight and car flush position then;
(104) when elevator carries out low speed uphill process under the inspecting state, automatically write down at the uniform velocity section output torque current command signal Iq3* by frequency converter, when elevator carries out low speed decline process under the inspecting state, by frequency converter record section output torque current command signal Iq4* at the uniform velocity automatically;
(105) current command signal Iq1*, Iq2*, Iq3* and Iq4* and the corresponding load value with record deposits on the cooresponding position of storage element automatically, and is depicted as a data form;
(106) when elevator moves, when the difference of service direction is carried out the compensation of starting torque about the elevator traction machine needs basis; According to the service direction up and down of elevator input, frequency converter inquires the torque current value of cooresponding output in the storage element automatically from the data sheet that stores; Frequency converter carries out interpolation arithmetic to the torque current value of the output that inquires and the load value of the lift car that weighing obtains, obtain the current command signal Iq5* of the required output torque of control elevator traction machine, the compensation and the control of required starting torque when realizing to elevator starter;
(107) when elevator moves, elevator traction machine need not when up and down the difference of service direction is carried out the compensation of starting torque; Frequency converter is put in order the data sheet in the storage element, and the up-downgoing torque current value of the same load of correspondence is averaged; Frequency converter carries out interpolation arithmetic to the load value of the lift car that this aviation value and weighing obtain, and obtains the current command signal Iq6* of the required output torque of control elevator traction machine, the compensation and the control of required starting torque when realizing elevator starter.
CN2009101995139A 2009-11-27 2009-11-27 Method for detecting and compensating starting torque of frequency transformer for elevator CN101723215B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009101995139A CN101723215B (en) 2009-11-27 2009-11-27 Method for detecting and compensating starting torque of frequency transformer for elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009101995139A CN101723215B (en) 2009-11-27 2009-11-27 Method for detecting and compensating starting torque of frequency transformer for elevator

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CN101723215B true CN101723215B (en) 2011-12-07

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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012136350A (en) * 2010-12-28 2012-07-19 Toshiba Elevator Co Ltd Apparatus and method for adjusting load compensation value for elevator
JP2012184091A (en) * 2011-03-07 2012-09-27 Toshiba Elevator Co Ltd Elevator control device
CN103241605B (en) * 2013-05-09 2015-04-01 日立电梯(中国)有限公司 Elevator starting compensation control method
CN104627757B (en) * 2013-11-15 2017-05-03 日立电梯(中国)有限公司 Elevator starting compensation device and compensation method of elevator starting compensation device
JP6187978B2 (en) * 2014-06-20 2017-08-30 株式会社日立ビルシステム Elevator control device
CN105645203A (en) * 2014-11-13 2016-06-08 日立电梯(中国)有限公司 Method for adjusting starting compensating moment of elevator automatically
CN106672717B (en) * 2015-11-11 2019-04-02 上海三菱电梯有限公司 The bearing calibration of elevator load torque current and device and elevator control method
CN107482985B (en) * 2017-07-20 2019-11-22 宝沃汽车(中国)有限公司 Modification method, update the system and the vehicle of motor control torque
CN110316629A (en) * 2018-03-30 2019-10-11 上海三菱电梯有限公司 Elevator meausring apparatus auto-correction method
CN110940402A (en) * 2019-12-10 2020-03-31 厦门恩格节能科技有限公司 Garbage hanging garbage weighing method, terminal equipment and storage medium

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Address after: 201615 Shanghai city Songjiang District town Jiuting Yaohan Road No. 77

Patentee after: Shanghai GIE EM Co., Ltd.

Address before: 201615, Jiuting hi tech park, Shanghai, the Yanghe River, Songjiang District Bang Road, No. 180

Patentee before: Shanghai Yungtay Gie Co., Ltd.

C56 Change in the name or address of the patentee

Owner name: SHANGHAI GIE ELECTRIC MACHINE CO., LTD.

Free format text: FORMER NAME: SHANGHAI YUNGTAY GIE MOTOR CO., LTD.

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Effective date of registration: 20171123

Address after: 201615 Shanghai, Songjiang District, No. nine new road, No. 99

Patentee after: Yungtay elevator equipment Co., Ltd. (China)

Address before: 201615 Shanghai city Songjiang District town Jiuting Yaohan Road No. 77

Patentee before: Shanghai GIE EM Co., Ltd.

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Effective date of registration: 20190730

Address after: 201615 Shanghai city Songjiang District town Jiuting Yaohan Road No. 77

Patentee after: Shanghai GIE EM Co., Ltd.

Address before: 201615 Shanghai, Songjiang District, No. nine new road, No. 99

Patentee before: Yungtay elevator equipment Co., Ltd. (China)

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