CN101701872A - System for simulating feature of wind machine based on DSP - Google Patents
System for simulating feature of wind machine based on DSP Download PDFInfo
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- CN101701872A CN101701872A CN200910228080A CN200910228080A CN101701872A CN 101701872 A CN101701872 A CN 101701872A CN 200910228080 A CN200910228080 A CN 200910228080A CN 200910228080 A CN200910228080 A CN 200910228080A CN 101701872 A CN101701872 A CN 101701872A
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Abstract
The invention provides a system for simulating the feature of a wind machine based on a DSP. The system is characterized of consisting of a three-phase AC power source, a pressure regulator, a rectifier filter circuit, a PWM controller, a current amplifier, a Hall current sensor, a DSP controlling unit, a power drive circuit, an upper computer, a DC motor and a photoelectric encoder. The system has the advantages of: (1) simulating the feature of the wind machine without depending on the real environment and wind machine, and controlling the rotate speed of the DC motor with eth DSP; (2) being capable of obtaining the variation curve of the randomly set wind speed only by changing the parameter of software; and (3) saving the experiment cost and time.
Description
(1) technical field:
The present invention relates to a kind of wind energy conversion system control system, especially a kind of system for simulating feature of wind machine based on DSP.
(2) background technology:
From the development of regenerative resource be used to, wind energy is the fastest-rising in the world energy.Wind speed is that nature random variation manpower is unmanageable, and it has intermittence and undulatory property, causes the duty of blower fan also to change, common simulation study method based on torque, rotary speed property, and very difficult traversal simulated each running status of blower fan; And when the research wind-power electricity generation, all can not there be wind energy turbine set or wind energy conversion system in most of laboratories, are not having under the situation of wind or just can't carry out these experiments and research in the laboratory, and this is unfavorable for some new-type theory and technology checkings very much.
It also is incomplete estimating the blower fan analog control system with the torque on the ordinary meaning, rotating speed characteristic curve, and fully check simulator is in the performance under the true random walk environment; Secondly, if when research blower fan simulation system, the not response of taking into account system under fully encouraging also is incomplete.
(3) summary of the invention:
The objective of the invention is to design a kind of system for simulating feature of wind machine based on DSP, it can overcome the deficiencies in the prior art, be a kind of simple in structure, be easy to realize, can not be subjected to the restriction in place, the experimentation of present wind power system research be can better simplify, new method, the system in Research on New cycle quickened.
Technical scheme of the present invention: a kind of system for simulating feature of wind machine based on DSP is characterized in that it is to be made of three-phase alternating-current supply, pressure regulator, current rectifying and wave filtering circuit, PWM controller, current amplification circuit, Hall current sensor, DSP control module, power driving circuit, host computer, direct current motor and photoelectric encoder; Wherein the input end of said pressure regulator connects the output terminal of three-phase alternating-current supply, and the used magnitude of voltage of input end 220V50Hz alternating current furnishing current rectifying and wave filtering circuit is exported to current rectifying and wave filtering circuit; The output terminal of said current rectifying and wave filtering circuit is connected with the input end of direct current motor and the input end of PWM controller respectively; The input end of said PWM controller also is connected with the output terminal of power driving circuit, and its output terminal is connected with the input end of Hall current sensor; The output terminal of said Hall current sensor is connected with the input end of current amplification circuit and the input end of direct current motor respectively; The output terminal of said current amplification circuit is connected with the input end of DSP control module; The input end of said DSP control module also is connected with the output terminal of photoelectric encoder and the output terminal of host computer, and its output terminal is connected with the input end of power driving circuit; The output terminal of said direct current motor is connected with the input end of photoelectric encoder.
The TMS320LF2407A chip that above-mentioned said DSP control module adopts TIX to produce, it comprises PWM delivery outlet, ADCIN00 pin, boundary scan emulation interface JTAG, catches pin QEP1 and catch pin QEP2; Said host computer is connected with the DSP control module by boundary scan emulation interface JTAG.
Above-mentioned said current rectifying and wave filtering circuit is to be that the electrochemical capacitor of 470uF constitutes by the uncontrollable rectification module of bridge diode and withstand voltage 450V and electric capacity; The uncontrollable rectification module of wherein said bridge diode is the three phase rectifier module 6RISOG-120 of company of Fuji, be nominally 30A/1200V, the uncontrollable rectification module of this bridge diode is as direct supply, its input end connects the output terminal of pressure regulator, the ac signal of pressure regulator output is converted to dc signal inputs to direct current motor and PWM controller.
What above-mentioned said PWM controller adopted is the irreversible PWM controller that the stalling current path is arranged, and it is to be made of thyristor VT1 and thyristor VT2; Above-mentioned said power driving circuit is made of two GTR power driver modules; Said two GTR power driver modules comprise high speed photo coupling isolator HCPL4504, diode D1, diode D2, diode D3, diode D4, diode D5, capacitor C, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7, triode T1, triode T2, triode T3, triode T4 respectively; The base stage b2 of the base stage b1 of thyristor VT1 and thyristor VT2 is driven by collector c1 and the collector c2 of two GTR in the power driving circuit respectively in the wherein said PWM controller, by its turn-on and turn-off DC voltage is become the consecutive pulses signal, and export to Hall element.
Above-mentioned said current amplification circuit is made of two operational amplifier LM324, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5 and resistance R 6, and it is connected to conventional the connection; The output terminal of said current amplification circuit connects the ADCIN0 pin of DSP control module.
Above-mentioned said Hall current sensor is the LA55-P of LEM company; The specified effective value electric current in its former limit is 50A, and the specified effective value electric current of secondary is 50mA; The input end of said Hall current sensor connects the output terminal of PWM controller, detects the pulse signal of PWM controller output, and it is inputed to operational amplifier LM324 in the current amplification circuit.
Above-mentioned said photoelectric encoder is an incremental optical-electricity encoder, and its input end receives the tach signal by the direct current motor input, through catching pin QEP 1 and catching pin QEP2 it is flowed to the DSP control module.
Principle of work of the present invention: this system's input voltage is AC220V, the alternating current of 50Hz, the power supply back connects pressure regulator after current rectifying and wave filtering circuit makes alternating current become direct current, then by the conducting of power switch pipe and by DC voltage is become consecutive pulses.And native system is a double closed-loop control system with feedback.It is DSP that systematic parameter passes to slave computer by host computer by USB interface, adopts incremental optical-electricity encoder to detect the rotation speed change of motor, inputs to DSP through QEP1, QEP2 pin, obtains feedback speed signal.Dsp controller obtains PWM1 with the feedback signal that samples by algorithm, and the control signal of PWM2 output again through optical coupling isolator, drives the conducting of amplifying power controlling switching device afterwards and ends, thus control motor output torque.
Superiority of the present invention is: 1. do not rely under the situation of actual environment and wind energy conversion system and simulate feature of wind machine, utilize the rotating speed of DSP control direct current generator; 2. if will simulate different wind energy conversion systems, only need to change the parameter of software, just can obtain the change curve of any wind speed setting; 3. make things convenient for the research of laboratory, saved experimental expenses, saved experimental period again wind generator system.
(4) description of drawings:
Fig. 1 is the system architecture diagram of the related a kind of system for simulating feature of wind machine based on DSP of the present invention.
Fig. 2 is related a kind of based on the power driving circuit structural drawing in the system for simulating feature of wind machine of DSP for the present invention.
Fig. 3 is related a kind of based on the pwm converter circuit structure diagram in the system for simulating feature of wind machine of DSP for the present invention.
Fig. 4 is related a kind of based on the current amplification circuit structural drawing in the system for simulating feature of wind machine of DSP for the present invention.
Fig. 5 is related a kind of based on the current sensor structural drawing in the system for simulating feature of wind machine of DSP for the present invention.
(5) embodiment:
Embodiment: a kind of system for simulating feature of wind machine based on DSP (seeing Fig. 1, Fig. 2) is characterized in that it is to be made of three-phase alternating-current supply, pressure regulator, current rectifying and wave filtering circuit, PWM controller, current amplification circuit, Hall current sensor, DSP control module, power driving circuit, host computer, direct current motor and photoelectric encoder; Wherein the input end of said pressure regulator connects the output terminal of three-phase alternating-current supply, and the used magnitude of voltage of input end 220V50Hz alternating current furnishing current rectifying and wave filtering circuit is exported to current rectifying and wave filtering circuit; The output terminal of said current rectifying and wave filtering circuit is connected with the input end of direct current motor and the input end of PWM controller respectively; The input end of said PWM controller also is connected with the output terminal of power driving circuit, and its output terminal is connected with the input end of Hall current sensor; The output terminal of said Hall current sensor is connected with the input end of current amplification circuit and the input end of direct current motor respectively; The output terminal of said current amplification circuit is connected with the input end of DSP control module; The input end of said DSP control module also is connected with the output terminal of photoelectric encoder and the output terminal of host computer, and its output terminal is connected with the input end of power driving circuit; The output terminal of said direct current motor is connected with the input end of photoelectric encoder.
The TMS320LF2407A chip that above-mentioned said DSP control module adopts TIX to produce, it comprises PWM delivery outlet, ADCIN00 pin, boundary scan emulation interface JTAG, catches pin QEP1 and catch pin QEP2; Said host computer is connected with the DSP control module by boundary scan emulation interface JTAG.
Above-mentioned said current rectifying and wave filtering circuit is to be that the electrochemical capacitor of 470uF constitutes by the uncontrollable rectification module of bridge diode and withstand voltage 450V and electric capacity; The uncontrollable rectification module of wherein said bridge diode is the three phase rectifier module 6RISOG-120 of company of Fuji, be nominally 30A/1200V, the uncontrollable rectification module of this bridge diode is as direct supply, its input end connects the output terminal of pressure regulator, the ac signal of pressure regulator output is converted to dc signal inputs to direct current motor and PWM controller.
What above-mentioned said PWM controller (see figure 3) adopted is the irreversible PWM controller that the stalling current path is arranged, and it is to be made of thyristor VT1 and thyristor VT2; Above-mentioned said power driving circuit is made of two GTR power driver modules; Said two GTR power driver modules comprise high speed photo coupling isolator HCPL4504, diode D1, diode D2, diode D3, diode D4, diode D5, capacitor C, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7, triode T1, triode T2, triode T3, triode T4 respectively; The base stage b2 of the base stage b1 of thyristor VT1 and thyristor VT2 is driven by collector c1 and the collector c2 of two GTR in the power driving circuit respectively in the wherein said PWM controller, by its turn-on and turn-off DC voltage is become the consecutive pulses signal, and export to Hall element.
Above-mentioned said current amplification circuit (see figure 4) is made of two operational amplifier LM324, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5 and resistance R 6, and it is connected to conventional the connection; The output terminal of said current amplification circuit connects the ADCIN0 pin of DSP control module.
The LA55-P that above-mentioned said Hall current sensor (see figure 5) is a LEM company; The specified effective value electric current in its former limit is 50A, and the specified effective value electric current of secondary is 50mA; The input end of said Hall current sensor connects the output terminal of PWM controller, detects the pulse signal of PWM controller output, and it is inputed to operational amplifier LM324 in the current amplification circuit.
Above-mentioned said photoelectric encoder is an incremental optical-electricity encoder, and its input end receives the tach signal by the direct current motor input, through catching pin QEP1 and catching pin QEP2 it is flowed to the DSP control module.
Claims (6)
1. the system for simulating feature of wind machine based on DSP is characterized in that it is to be made of three-phase alternating-current supply, pressure regulator, current rectifying and wave filtering circuit, PWM controller, current amplification circuit, Hall current sensor, DSP control module, power driving circuit, host computer, direct current motor and photoelectric encoder; Wherein the input end of said pressure regulator connects the output terminal of three-phase alternating-current supply, and the used magnitude of voltage of input end 220V50Hz alternating current furnishing current rectifying and wave filtering circuit is exported to current rectifying and wave filtering circuit; The output terminal of said current rectifying and wave filtering circuit is connected with the input end of direct current motor and the input end of PWM controller respectively; The input end of said PWM controller also is connected with the output terminal of power driving circuit, and its output terminal is connected with the input end of Hall current sensor; The output terminal of said Hall current sensor is connected with the input end of current amplification circuit and the input end of direct current motor respectively; The output terminal of said current amplification circuit is connected with the input end of DSP control module; The input end of said DSP control module also is connected with the output terminal of photoelectric encoder and the output terminal of host computer, and its output terminal is connected with the input end of power driving circuit; The output terminal of said direct current motor is connected with the input end of photoelectric encoder.
2. according to a kind of system for simulating feature of wind machine described in the claim 1 based on DSP, it is characterized in that the TMS320LF2407A chip that said DSP control module adopts TIX to produce, it comprises PWM delivery outlet, ADCIN00 pin, boundary scan emulation interface JTAG, catches pin QEP1 and catch pin QEP2; Said host computer is connected with the DSP control module by boundary scan emulation interface JTAG.
3. according to a kind of system for simulating feature of wind machine described in the claim 1, it is characterized in that said current rectifying and wave filtering circuit is is that the electrochemical capacitor of 470uF constitutes by the uncontrollable rectification module of bridge diode and withstand voltage 450V and electric capacity based on DSP; The uncontrollable rectification module of wherein said bridge diode is the three phase rectifier module 6RISOG-120 of company of Fuji, be nominally 30A/1200V, the uncontrollable rectification module of this bridge diode is as direct supply, its input end connects the output terminal of pressure regulator, the ac signal of pressure regulator output is converted to dc signal inputs to direct current motor and PWM controller.
4. according to a kind of system for simulating feature of wind machine based on DSP described in claim 1 or 3, what it is characterized in that said PWM controller employing is the irreversible PWM controller that the stalling current path is arranged, and it is to be made of thyristor VT1 and thyristor VT2; Above-mentioned said power driving circuit is made of two GTR power driver modules; Said two GTR power driver modules comprise high speed photo coupling isolator HCPL4504, diode D1, diode D2, diode D3, diode D4, diode D5, capacitor C, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7, triode T1, triode T2, triode T3, triode T4 respectively; The base stage b2 of the base stage b1 of thyristor VT1 and thyristor VT2 is driven by collector c1 and the collector c2 of two GTR in the power driving circuit respectively in the wherein said PWM controller, by its turn-on and turn-off DC voltage is become the consecutive pulses signal, and export to Hall element.
5. according to a kind of system for simulating feature of wind machine described in claim 1 or 4, it is characterized in that said Hall current sensor is the LA55-P of LEM company based on DSP; The specified effective value electric current in its former limit is 50A, and the specified effective value electric current of secondary is 50mA; The input end of said Hall current sensor connects the output terminal of PWM controller, detects the pulse signal of PWM controller output, and it is inputed to operational amplifier LM324 in the current amplification circuit.
6. according to a kind of system for simulating feature of wind machine described in the claim 1 based on DSP, it is characterized in that said photoelectric encoder is an incremental optical-electricity encoder, its input end receives the tach signal by the direct current motor input, through catching pin QEP1 and catching pin QEP2 it is flowed to the DSP control module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102280805A CN101701872B (en) | 2009-11-09 | 2009-11-09 | System for simulating feature of wind machine based on DSP |
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| CN2009102280805A CN101701872B (en) | 2009-11-09 | 2009-11-09 | System for simulating feature of wind machine based on DSP |
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| CN101701872B CN101701872B (en) | 2011-09-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275453A (en) * | 2018-01-30 | 2019-09-24 | 国网山东省电力公司日照供电公司 | A kind of low-voltage network power quality controlling device general purpose controller |
| CN110500240A (en) * | 2019-09-27 | 2019-11-26 | 扬州大学 | The measurement method of small-power wind energy conversion system aerodynamic characteristic |
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2009
- 2009-11-09 CN CN2009102280805A patent/CN101701872B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275453A (en) * | 2018-01-30 | 2019-09-24 | 国网山东省电力公司日照供电公司 | A kind of low-voltage network power quality controlling device general purpose controller |
| CN110500240A (en) * | 2019-09-27 | 2019-11-26 | 扬州大学 | The measurement method of small-power wind energy conversion system aerodynamic characteristic |
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| CN101701872B (en) | 2011-09-21 |
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