CN105634349A - High-power DC transmission control system - Google Patents
High-power DC transmission control system Download PDFInfo
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- CN105634349A CN105634349A CN201410646361.3A CN201410646361A CN105634349A CN 105634349 A CN105634349 A CN 105634349A CN 201410646361 A CN201410646361 A CN 201410646361A CN 105634349 A CN105634349 A CN 105634349A
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- Elevator Control (AREA)
Abstract
The invention provides a high-power DC transmission control system which has excellent control performance and good accuracy and can meet the requirements of high voltage and large current of a high-power elevator. The high-power DC transmission control system adopts a double closed-loop armature reversible DC speed regulation system powered by thyristors, and comprises a main circuit portion and a control circuit portion; wherein the main circuit portion comprises a rectification circuit, the input end of the rectification circuit is connected with a three-phase AC, the output of the rectification circuit is connected with a smoothing reactor Ld and a motor M; the output of the motor is connected to a speed signal detection module, the output of the speed signal detection module is connected to the input of the control circuit; and the input end of the control circuit is connected with a system given module, a synchronous signal detection module and a current signal detection module.
Description
Technical field
The invention belongs to electric machine speed regulation field, more particularly to a kind of high power DC driving control system.
Background technology
Make a general survey of the evolution of Electrified Transmission, the big Electrified Transmission of AC and DC two in being stored in the industrial circle in each period, although they residing status are different with effect, but they are as the development of industrial technology all the time, particular with power electronics and microelectronic development, in vying each other, mutually promoting perfect self, occur to change.
Owing to dc motor has good linear speed regulation characteristic, simple control performance, thus it is widely used in industrial occasions. In recent years, development due to production technology, Electrified Transmission is proposed higher requirement in playing braking, rotating and adjusting speed accuracy, speed adjustable range, static characteristic and dynamic response, the appearance of all-digital dc speed-regulating system, more improves precision and the reliability of Direct Current Governor System. So, modern latter stage requires higher occasion in speed governing, and such as mine hoist, steel rolling mill, offshore drilling platform etc., DC speed regulation will be in critical role.
Summary of the invention
The present invention is directed to the problems referred to above, make up the deficiencies in the prior art, it is provided that a kind of high power DC driving control system; The present invention controls system and has superior control performance and good precision; Can adapt to the requirement of the high voltage of high-power elevator, big electric current.
For realizing the above-mentioned purpose of the present invention, the present invention adopts the following technical scheme that.
One high power DC driving control system of the present invention, adopts the two close cycles armature reversible dc governing system that IGCT is powered, including main circuit part, control circuit part; Its structural feature is: main circuit part includes rectification circuit, and the input of described rectification circuit connects three-phase alternating current, the output of finishing circuit and smoothing reactor LdConnect with motor M; The output of described motor is connected on rate signal detection module, and the output of described rate signal detection module is connected to the input of control circuit; The input of described control circuit is also respectively connected with system given module, synchronization signal detection module, current signal detection module.
As a preferred embodiment of the present invention, described main circuit part adopts two groups of silicon con trolled rectifier device reverse parallel circuits i.e. double; two groups three-phase full-controlled bridge (12 pulsating wave series connection); Described two groups of silicon con trolled rectifier devices are respectively just organizing IGCT VF and anti-group IGCT VR.
As the another kind of preferred version of the present invention, described control circuit part adopts DSP TMS320LF2407.
The invention has the beneficial effects as follows.
1, the invention provides a kind of high power DC driving control system, based on the 12 pulsating wave aspergillus ficuum reversible dc governing system of TMS320LF2407 type DSP. The present invention is setting forth on the basis of armature reversible dc governing system ultimate principle, it is provided that the hardware that present system is detailed forms and software design approach. This control system control performance and precision are good.
2, the present invention based on the 12 pulsating wave aspergillus ficuum reversible dc governing system of TMS320LF2407 type DSP compared with traditional 6 pulse wave Direct Current Governor Systems, harmonic content is less, grid voltage waveform distortion is less, pulse number doubles, and also have and expand current transformer power bracket, to adapt to the requirement of the high voltage of high-power elevator, big electric current. Present system control performance is good.
Accompanying drawing explanation
Fig. 1 is the hardware structure diagram of a kind of high power DC driving control system of the present invention.
Fig. 2 is the main circuit schematic diagram of a kind of high power DC driving control system of the present invention.
Fig. 3 is the mastery routine figure of a kind of high power DC driving control system of the present invention.
Detailed description of the invention
As it is shown in figure 1, be the hardware structure diagram of a kind of high power DC driving control system of the present invention. In figure, adopt the two close cycles armature reversible dc governing system that IGCT is powered, including main circuit part, control circuit part; Its structural feature is: main circuit part includes rectification circuit, and the input of described rectification circuit connects three-phase alternating current, the output of finishing circuit and smoothing reactor LdConnect with motor M; The output of described motor is connected on rate signal detection module, and the output of described rate signal detection module is connected to the input of control circuit; The input of described control circuit is also respectively connected with system given module, synchronization signal detection module, current signal detection module.
Although having circulation bilateral system to have the advantages such as fast, the excess smoothness of reaction, but arranging several circulation reactor being a burden eventually. Therefore, to system rotating seamlessly transit characteristic requirements not significantly high time, especially for jumbo system, frequently with not only there is no direct current mean circulation but also not having the aspergillus ficuum of instantaneous pulsation circulation to control bilateral system.
The present invention adopts aspergillus ficuum reversible dc governing system from the above mentioned, the composition and working principle of described aspergillus ficuum reversible dc governing system: for the reversible dc governing system of relatively high power, main circuit is through frequently with two groups of silicon con trolled rectifier device reverse parallel circuits, when motor rotates forward, powered by just organizing IGCT VF; During reversion, counter group of IGCT VR power. Owing to not having circulation, circulation reactor is not set, but during in order to ensure stable operation, current waveform is continuous, must retain smoothing reactor Ld��
As in figure 2 it is shown, be the main circuit schematic diagram of a kind of high power DC driving control system of the present invention. In figure, main circuit part adopts two groups of silicon con trolled rectifier device reverse parallel circuits i.e. double; two groups three-phase full-controlled bridge (12 pulsating wave series connection); Described two groups of silicon con trolled rectifier devices are respectively just organizing IGCT VF and anti-group IGCT VR; Described just organizing smoothing reactor L in parallel between IGCT VF and anti-group IGCT VRdWith motor M. Described smoothing reactor LdEnsure that during stable operation, current waveform is continuous.
Present system software is the control core of whole governing system, and it is directly connected to the performance of double loop speed-regulating system. Present system adopts DSP TMS320LF2407 as controller, instead of the links such as ASR and ACR in traditional Direct Current Governor System, complete internal ring current controller computing, outer shroud speed control computing and digital trigger of thyristor etc. with software and control function.
Invention software is constituted in modular fashion, mainly includes main program module, initialization subroutine module and interrupt service subroutine module. As it is shown on figure 3, be the mastery routine figure of a kind of high power DC driving control system of the present invention. Main program module mainly includes keyboard scan, refreshes display and the function such as host computer and other peripheral communications. System initialization subprogram includes clear interruption, arranges clock, initializes I/O mouth, initializes A/D mouth. Interrupt service subroutine is the core of system, including A/D sampling module, catches interrupt module, electric current Rotating speed measring module, numeral PI adjustment module, phase control trigger module and failure protection module etc.
It is understandable that, specific descriptions above with respect to the present invention, it is merely to illustrate the present invention and is not limited to the technical scheme described by the embodiment of the present invention, it will be understood by those within the art that, still the present invention can be modified or equivalent replacement, to reach identical technique effect; Needs are used, all within protection scope of the present invention as long as meeting.
Claims (3)
1. a high power DC driving control system, adopts the two close cycles armature reversible dc governing system that IGCT is powered, including main circuit part, control circuit part; It is characterized in that: described main circuit part includes rectification circuit, the input of described rectification circuit connects three-phase alternating current, the output of finishing circuit and smoothing reactor LdConnect with motor M; The output of described motor is connected on rate signal detection module, and the output of described rate signal detection module is connected to the input of control circuit; The input of described control circuit is also respectively connected with system given module, synchronization signal detection module, current signal detection module.
2. a kind of high power DC driving control system according to claim 1, it is characterised in that: described main circuit part adopts two groups of silicon con trolled rectifier device reverse parallel circuits i.e. double; two groups three-phase full-controlled bridge (12 pulsating wave series connection); Described two groups of silicon con trolled rectifier devices are respectively just organizing IGCT VF and anti-group IGCT VR.
3. a kind of high power DC driving control system according to claim 1, it is characterised in that: described control circuit part adopts DSP TMS320LF2407.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410646361.3A CN105634349A (en) | 2014-11-15 | 2014-11-15 | High-power DC transmission control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410646361.3A CN105634349A (en) | 2014-11-15 | 2014-11-15 | High-power DC transmission control system |
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| CN105634349A true CN105634349A (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410646361.3A Pending CN105634349A (en) | 2014-11-15 | 2014-11-15 | High-power DC transmission control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787519A (en) * | 2018-12-29 | 2019-05-21 | 湖南鼎创装备有限公司 | A kind of DC motor drive and method |
-
2014
- 2014-11-15 CN CN201410646361.3A patent/CN105634349A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787519A (en) * | 2018-12-29 | 2019-05-21 | 湖南鼎创装备有限公司 | A kind of DC motor drive and method |
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| PB01 | Publication | ||
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Application publication date: 20160601 |