CN202940765U - Current chopping control device for switched reluctance motor - Google Patents
Current chopping control device for switched reluctance motor Download PDFInfo
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- CN202940765U CN202940765U CN 201220635910 CN201220635910U CN202940765U CN 202940765 U CN202940765 U CN 202940765U CN 201220635910 CN201220635910 CN 201220635910 CN 201220635910 U CN201220635910 U CN 201220635910U CN 202940765 U CN202940765 U CN 202940765U
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- analog comparator
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Abstract
The utility model discloses a current chopping control device for a switched reluctance motor. The current chopping control device comprises a logical processing chip or a separation logical circuit, two analog given circuits, N current feedback conditioning circuits and 2N analog comparators. Input ends of the analog comparators are connected with output ends of the current feedback conditioning circuits and the analog given circuits respectively.
Description
Technical field
The utility model relates to a kind of switched reluctance machines current chopping control device, according to current feedback signal control switch reluctance motor main circuit power switch pipe, reaches the purpose of stablizing current of electric, belongs to the field of switched reluctance machines application and technical optimization.
Background technology
In the Current Control of switched reluctance machines, conventional current copped wave is controlled (CCC) and is adopted a public analog comparator or analog comparator of every phase current employing at present, export electric current given and the current feedback signal comparison, when feedback current during greater than the given value of current signal, fixedly the mode of switch-off power switching tube time is closed power switch pipe, thereby reaches the purpose of controlling the motor output current.But when power switch pipe turn-offs, the electric current decrease speed can increase sharply with output power of motor, and fixedly the mode of turn-off time can make current fluctuation become large, thereby increases current of electric pulsation and torque pulsation and electromagnetic noise.
Summary of the invention
For defects, the utility model provides a kind of switched reluctance machines current chopping control device, set the bound of Current Control, when phase current surpasses upper switch-off power switching tube in limited time, electric current is down to the following conducting power switch pipe of lower limit, makes within electric current remains on the Hysteresis Current setting range, thereby reduces the switched reluctance machines current pulsation, reduce motor torque ripple, thereby improve the caloric value of the current utilization rate reduction copped wave power switch pipe of power switch pipe.
To achieve these goals, the technical solution of the utility model is: a kind of switched reluctance machines current chopping control device comprises logical process chip or separation logic circuit, 2 simulate given circuits, a N current feedback modulate circuit and 2N analog comparators; Described current feedback modulate circuit be connected with switched reluctance machines, will be every the phase current feedback signal send into analog comparator after processing; The upper lower limit value of the given analog signal of described mould simulate given circuit; The input of described analog comparator is connected with the output of current feedback modulate circuit and simulate given circuit respectively; Analog comparator output is connected with logical process chip or separation logic circuit, with signal input logic process chip or the separation logic circuit of analog comparator, controls respectively the cut-offfing of power switch pipe of main circuit according to the output of analog comparator.Current feedback signal is during lower than the analog signal lower limit, and power switch pipe is opened all the time until current feedback signal surpasses the analog signal higher limit; Current feedback signal is closed power switch pipe after surpassing the analog signal higher limit, again opens power switch pipe during lower than the analog current signal lower limit when electric current.
Further, described analog comparator comprises that upper limit analog comparator and lower limit mould are with comparator, described simulate given circuit comprises upper limit simulate given circuit and lower limit simulate given circuit, upper limit analog comparator is connected with upper limit simulate given circuit, and the lower limit analog comparator is connected with the lower limit simulate given circuit.
Switched reluctance machines current chopping control device of the present utility model, set the bound of Current Control, when phase current surpasses upper switch-off power switching tube in limited time, electric current is down to the following conducting power switch pipe of lower limit, make within electric current remains on the Hysteresis Current setting range, thereby reduce the switched reluctance machines current pulsation, reduce motor torque ripple, thereby improve the caloric value of the current utilization rate reduction copped wave power open pipe of power switch pipe.
Description of drawings
Fig. 1 is schematic block circuit diagram of the present utility model.
Embodiment
The utility model is further described below in conjunction with accompanying drawing and specific embodiment.
As shown in Figure 1, switched reluctance machines current chopping control device of the present utility model comprises logical process chip or separation logic circuit, 2 simulate given circuits, a N current feedback modulate circuit and 2N analog comparators; Described current feedback modulate circuit is connected with switched reluctance machines, sends into analog comparator after every phase current feedback signal is processed; The upper lower limit value of the given analog signal of described simulate given circuit; The input of described analog comparator is connected with the output of current feedback modulate circuit and simulate given circuit respectively; Analog comparator output is connected with logical process chip or separation logic circuit, with signal input logic process chip or the separation logic circuit of analog comparator, controls respectively the cut-offfing of power switch pipe of main circuit according to the output of analog comparator.
Described analog comparator comprises upper limit analog comparator and lower limit analog comparator, described simulate given circuit comprises upper limit simulate given circuit and lower limit simulate given circuit, upper limit analog comparator is connected with upper limit simulate given circuit, and the lower limit analog comparator is connected with given circuit with the lower limit mould.
This control device is applicable to N phase switch reluctance motor, when controlling N phase switch reluctance motor, be divided into two-way after every phase current feedback signal is processed through the feedback modulate circuit and send into respectively the upper and lower limit analog comparator, analog comparator corresponds to 2N, and 2N the defeated protruding signal of comparator is admitted to logical process chip or separation logic circuit.
Current feedback signal is during lower than the analog signal lower limit, and power switch pipe is opened all the time until current feedback signal surpasses the analog signal higher limit; Current feedback signal is closed power switch pipe after surpassing the analog signal higher limit, again opens power switch pipe during lower than the analog current signal lower limit when electric current.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion of making according to the technical solution of the utility model is within all falling into protection range of the present utility model.
Claims (2)
1. switched reluctance machines current chopping control device is characterized in that: this control device comprises logical process chip or separation logic circuit, 2 simulate given circuits, a N current feedback modulate circuit and 2N analog comparators; Described current feedback modulate circuit is connected with switched reluctance machines, sends into analog comparator after every phase current feedback signal is processed; The upper lower limit value of the given analog signal of described simulate given circuit; The input of described analog comparator is connected with the output of current feedback modulate circuit and simulate given circuit respectively; Analog comparator output is connected with logical process chip or separation logic circuit, with signal input logic process chip or the separation logic circuit of analog comparator, controls respectively the cut-offfing of power switch pipe of main circuit according to the output of analog comparator.
2. switched reluctance machines current chopping control device according to claim 1, it is characterized in that: described analog comparator comprises upper limit analog comparator and lower limit analog comparator, described simulate given circuit comprises upper limit simulate given circuit and lower limit simulate given circuit, upper limit analog comparator is connected with upper limit simulate given circuit, and the lower limit analog comparator is connected with the lower limit simulate given circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635910 CN202940765U (en) | 2012-11-22 | 2012-11-22 | Current chopping control device for switched reluctance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635910 CN202940765U (en) | 2012-11-22 | 2012-11-22 | Current chopping control device for switched reluctance motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940765U true CN202940765U (en) | 2013-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220635910 Expired - Fee Related CN202940765U (en) | 2012-11-22 | 2012-11-22 | Current chopping control device for switched reluctance motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940765U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607160A (en) * | 2013-12-03 | 2014-02-26 | 山东省科学院自动化研究所 | Current chopping controller and achievement method |
| CN107046381A (en) * | 2017-03-07 | 2017-08-15 | 湖南大学 | A kind of switched reluctance machines varied angle PI control methods, controller and governing system |
-
2012
- 2012-11-22 CN CN 201220635910 patent/CN202940765U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607160A (en) * | 2013-12-03 | 2014-02-26 | 山东省科学院自动化研究所 | Current chopping controller and achievement method |
| CN103607160B (en) * | 2013-12-03 | 2016-04-06 | 山东省科学院自动化研究所 | A kind of Current cut control device and implementation method |
| CN107046381A (en) * | 2017-03-07 | 2017-08-15 | 湖南大学 | A kind of switched reluctance machines varied angle PI control methods, controller and governing system |
| CN107046381B (en) * | 2017-03-07 | 2019-08-30 | 湖南大学 | A kind of switched reluctance machines varied angle PI control method, controller and speed-regulating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: ZHEJIANG SIMIRE MOTOR CO., LTD. Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20161122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |