CN104714410A - Electric vehicle braking follow-type fuzzy prediction starting and stopping control circuit - Google Patents
Electric vehicle braking follow-type fuzzy prediction starting and stopping control circuit Download PDFInfo
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- CN104714410A CN104714410A CN201510128378.4A CN201510128378A CN104714410A CN 104714410 A CN104714410 A CN 104714410A CN 201510128378 A CN201510128378 A CN 201510128378A CN 104714410 A CN104714410 A CN 104714410A
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Abstract
The invention relates to the technical field of electric vehicle starting and stopping, in particular to an electric vehicle braking follow-type fuzzy prediction starting and stopping control circuit. The electric vehicle braking follow-type fuzzy prediction starting and stopping control circuit comprises a direct current contactor QF, a precharge branch YC, alternating current contactors QF3, a recognition unit B, a fuzzy prediction control unit VC, a drive and executing device YE, electric reactors L and a capacitor V. The recognition unit B and the fuzzy prediction control unit VC are connected with an electric tractor power supply through the direct current contactor QF1 and the precharge branch YC, the rear end of the recognition unit B and the rear end of the fuzzy prediction control unit VC are connected with the drive and executing device YE, the rear end of the drive and executing device YE is connected with the electric reactors L and capacitors C, the rear ends of the electric reactors L and the rear ends of the capacitors C are connected with the alternating current contactors QF3, and the alternating current contactors QF3 are connected to an electric grid. According to the electric vehicle braking follow-type fuzzy prediction starting and stopping control circuit, the main circuit topology is simple, control is flexible and convenient, and the quality of output waveforms is good.
Description
Technical field
The present invention relates to electric car start and stop technical field, especially a kind of electric car braking trailing type Fuzzy Predictive Control switching on/off circuit.
Background technology
The feature of electric tractor is the ability that its traction electric machine has regenerated electric power braking.When traction electric machine adopts electric braking, traction electric machine synchronous rotational speed reduces, but rotor has inertia effect when train operation, make rotor speed higher than synchronous rotational speed, and produce retarding torque, now motor just becomes generator property running, thus produces the regenerated electric power energy.The existence of this electric power energy can cause electric car brake fade or braking not steady, affects the comfort level of train operating safety and passenger, even affects passenger safety, must be eliminated or water conservancy diversion, to guarantee traffic safety by certain mode.
Existing mode mostly adopts power consumption device thoroughly to eliminate or adopts energy storage device to eliminate in short-term, but its drawback is apparent, such as can produce the thermoradiation efficiency that a large amount of heat energy causes environment, or respond and bluntly can not electric car start and stop be caused not steady by real-time action.
Summary of the invention
In order to overcome the deficiency of existing technology, the invention provides a kind of electric car braking trailing type Fuzzy Predictive Control switching on/off circuit.
The technical solution adopted for the present invention to solve the technical problems is: a kind of electric car braking trailing type Fuzzy Predictive Control switching on/off circuit, comprise D.C. contactor QF, precharge branch YC, A.C. contactor QF3, recognition unit B and Fuzzy Predictive Control unit VC, drive and actuator YE, reactor L, capacitor V, recognition unit B and Fuzzy Predictive Control unit VC is by D.C. contactor QF1, precharge branch YC connects electric tractor power supply, after recognition unit B and Fuzzy Predictive Control unit VC, termination drives and actuator YE, drive and termination reactor L and capacitor C after actuator YE, reactor L is connected A.C. contactor QF3 with capacitor C rear end, A.C. contactor QF3 is connected on electrical network.
According to another embodiment of the invention, comprise further, described power supply positive pole circuit is provided with D.C. contactor QF1, a D.C. contactor QF1 precharge branch YC be made up of auxiliary D.C. contactor QF2 and resistance R in parallel.
According to another embodiment of the invention, comprise further, the P pole of described Fuzzy Predictive Control unit VC and N extremely go up three groups of insulated gate bipolar transistor IGBTs in parallel, its P pole and N extremely upper series connection fuse FUSE1, FUSE2, Current Transmit 1 and CT2, its P pole and N extremely on be parallel with voltage transformer (VT) VT1, VT2 and VT3, its P pole and N pole are parallel with resistance R3, the series circuit of R4 and contactor KM4, its P extremely goes up series contactor KM1 after fuse FUSE1, the series circuit of a resistance R1 and contactor KM3 in parallel on its KM1, three groups of insulated gate bipolar transistor IGBTs connect the U phase of AC power respectively, V phase and W phase, the U phase of AC power, V phase and current-limiting reactor L in W phase and fuse 6-8, the U phase of AC power, " △ " circuit of V phase and shunt capacitance C in W phase, series current mutual inductor CT3 and CT5 in the U phase of AC power, series current mutual inductor CT4 and CT6 in the W phase of AC power.
The invention has the beneficial effects as follows, this electric car braking trailing type Fuzzy Predictive Control switching on/off circuit, main circuit topology is succinct, control flexible and convenient, output waveform quality is good, employing multi executors is in parallel, often organize actuator independently to control, there is the feature of redundancy of effort, even if wherein there is actuator to occur protection, all the other actuators still can normally work, the reliability of further raising system cloud gray model, the break-make performance of electrical energy is good, under the condition not increasing additional hardware configuration, substantially increase the dutycycle of equipment, main circuit adopts closed-loop control, accurate control actuator operating frequency and amplitude, real-time response, guarantee electric car even running, and can ensure to export the quality of power supply.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is circuit diagram of the present invention;
Fig. 2 is Fuzzy Predictive Control element circuit figure of the present invention;
In figure;
QF is D.C. contactor;
YC is precharge branch;
B is can only recognition unit;
VC is Fuzzy Predictive Control unit;
YE is for driving and actuator;
L is reactor;
C is capacitor;
P is positive source;
N is power cathode;
FUSE is fuse;
VT is voltage transformer (VT);
CT is current transformer;
R is resistance;
KM is contactor;
TGBT is insulated gate bipolar transistor;
U is alternating current U phase;
V is alternating current V phase;
W is alternating current W phase.
Embodiment
If Fig. 1 is circuit diagram of the present invention, a kind of electric car braking trailing type Fuzzy Predictive Control switching on/off circuit, comprise D.C. contactor QF, precharge branch YC, A.C. contactor QF3, recognition unit B and Fuzzy Predictive Control unit VC, drive and actuator YE, reactor L, capacitor V, recognition unit B and Fuzzy Predictive Control unit VC is by D.C. contactor QF1, precharge branch YC connects electric tractor power supply, after recognition unit B and Fuzzy Predictive Control unit VC, termination drives and actuator YE, drive and termination reactor L and capacitor C after actuator YE, reactor L is connected A.C. contactor QF3 with capacitor C rear end, A.C. contactor QF3 is connected on electrical network.
According to another embodiment of the invention, comprise further, described power supply positive pole circuit is provided with D.C. contactor QF1, a D.C. contactor QF1 precharge branch YC be made up of auxiliary D.C. contactor QF2 and resistance R in parallel.
According to another embodiment of the invention, comprise further, the P pole of described Fuzzy Predictive Control unit VC and N extremely go up three groups of insulated gate bipolar transistor IGBTs in parallel, its P pole and N extremely upper series connection fuse FUSE1, FUSE2, Current Transmit 1 and CT2, its P pole and N extremely on be parallel with voltage transformer (VT) VT1, VT2 and VT3, its P pole and N pole are parallel with resistance R3, the series circuit of R4 and contactor KM4, its P extremely goes up series contactor KM1 after fuse FUSE1, the series circuit of a resistance R1 and contactor KM3 in parallel on its KM1, three groups of insulated gate bipolar transistor IGBTs connect the U phase of AC power respectively, V phase and W phase, the U phase of AC power, V phase and current-limiting reactor L in W phase and fuse 6-8, the U phase of AC power, " △ " circuit of V phase and shunt capacitance C in W phase, series current mutual inductor CT3 and CT5 in the U phase of AC power, series current mutual inductor CT4 and CT6 in the W phase of AC power.
This electric car braking trailing type Fuzzy Predictive Control switching on/off circuit, D.C. contactor QF1 is used for the joint weldment of electric car braking trailing type Fuzzy Predictive Control switching on/off circuit positive pole P power supply;
Precharge branch YV is used for the buffering of this circuit when initially powering on;
A.C. contactor QF3 is used for the joint weldment of this circuit outgoing side power supply;
Intelligent Recognition unit B is for detecting cathode voltage, and its result is transferred to Fuzzy Predictive Control unit VC;
Fuzzy Predictive Control unit VC, according to the voltage signal detected, judges the state of electric car, and determines whether needing to start or stop actuator with this;
Driving and actuator YE are topworkies, are formed in parallel by Duo Zu redundant unit, and the operation of complete independently circuit and the conversion of electric energy separately;
Reactor L and capacitor C is for adjusting the output quality of power supply.
This circuit is provided with electrical network overvoltage, under-voltage, DC bus overvoltage, under-voltage protection function.
More than illustrate just illustrative for the purpose of the present invention; and nonrestrictive, those of ordinary skill in the art understand, when not departing from the spirit and scope that claims limit; many amendments, change or equivalence can be made, but all will fall within the scope of protection of the present invention.
Claims (3)
1. an electric car braking trailing type Fuzzy Predictive Control switching on/off circuit, comprise D.C. contactor QF, precharge branch YC, A.C. contactor QF3, recognition unit B and Fuzzy Predictive Control unit VC, drive and actuator YE, reactor L, capacitor V, it is characterized in that, recognition unit B and Fuzzy Predictive Control unit VC is by D.C. contactor QF1, precharge branch YC connects electric tractor power supply, after recognition unit B and Fuzzy Predictive Control unit VC, termination drives and actuator YE, drive and termination reactor L and capacitor C after actuator YE, reactor L is connected A.C. contactor QF3 with capacitor C rear end, A.C. contactor QF3 is connected on electrical network.
2. electric car braking trailing type Fuzzy Predictive Control switching on/off circuit according to claim 1, it is characterized in that, described power supply positive pole circuit is provided with D.C. contactor QF1, a D.C. contactor QF1 precharge branch YC be made up of auxiliary D.C. contactor QF2 and resistance R in parallel.
3. electric car braking trailing type Fuzzy Predictive Control switching on/off circuit according to claim 1, it is characterized in that, the P pole of described Fuzzy Predictive Control unit VC and N extremely go up three groups of insulated gate bipolar transistor IGBTs in parallel, its P pole and N extremely upper series connection fuse FUSE1, FUSE2, Current Transmit 1 and CT2, its P pole and N extremely on be parallel with voltage transformer (VT) VT1, VT2 and VT3, its P pole and N pole are parallel with resistance R3, the series circuit of R4 and contactor KM4, its P extremely goes up series contactor KM1 after fuse FUSE1, the series circuit of a resistance R1 and contactor KM3 in parallel on its KM1, three groups of insulated gate bipolar transistor IGBTs connect the U phase of AC power respectively, V phase and W phase, the U phase of AC power, V phase and current-limiting reactor L in W phase and fuse 6-8, the U phase of AC power, " △ " circuit of V phase and shunt capacitance C in W phase, series current mutual inductor CT3 and CT5 in the U phase of AC power, series current mutual inductor CT4 and CT6 in the W phase of AC power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510128378.4A CN104714410A (en) | 2015-03-24 | 2015-03-24 | Electric vehicle braking follow-type fuzzy prediction starting and stopping control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510128378.4A CN104714410A (en) | 2015-03-24 | 2015-03-24 | Electric vehicle braking follow-type fuzzy prediction starting and stopping control circuit |
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| CN104714410A true CN104714410A (en) | 2015-06-17 |
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| CN201510128378.4A Pending CN104714410A (en) | 2015-03-24 | 2015-03-24 | Electric vehicle braking follow-type fuzzy prediction starting and stopping control circuit |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20030231517A1 (en) * | 2001-01-02 | 2003-12-18 | Bixel Paul S. | System and method for regenerative PWM AC power conversion |
| CN2901695Y (en) * | 2005-12-27 | 2007-05-16 | 湘潭电机股份有限公司 | Chopper speed regulating electric device for industrial and mining motor car |
| CN102694388A (en) * | 2012-05-29 | 2012-09-26 | 电子科技大学 | Bidirectional converter control device |
| CN102969920A (en) * | 2012-12-12 | 2013-03-13 | 北京动力机械研究所 | Bidirectional inverter with dual operating modes |
| CN103311950A (en) * | 2013-05-15 | 2013-09-18 | 华中科技大学 | Urban rail train regenerative brake energy absorbing and using system and method |
| WO2014136271A1 (en) * | 2013-03-08 | 2014-09-12 | 株式会社東芝 | Power converter for vehicle |
| CN204515364U (en) * | 2015-03-24 | 2015-07-29 | 江苏明伟万盛科技有限公司 | Electric car braking trailing type Fuzzy Predictive Control switching on/off circuit |
-
2015
- 2015-03-24 CN CN201510128378.4A patent/CN104714410A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030231517A1 (en) * | 2001-01-02 | 2003-12-18 | Bixel Paul S. | System and method for regenerative PWM AC power conversion |
| CN2901695Y (en) * | 2005-12-27 | 2007-05-16 | 湘潭电机股份有限公司 | Chopper speed regulating electric device for industrial and mining motor car |
| CN102694388A (en) * | 2012-05-29 | 2012-09-26 | 电子科技大学 | Bidirectional converter control device |
| CN102969920A (en) * | 2012-12-12 | 2013-03-13 | 北京动力机械研究所 | Bidirectional inverter with dual operating modes |
| WO2014136271A1 (en) * | 2013-03-08 | 2014-09-12 | 株式会社東芝 | Power converter for vehicle |
| CN103311950A (en) * | 2013-05-15 | 2013-09-18 | 华中科技大学 | Urban rail train regenerative brake energy absorbing and using system and method |
| CN204515364U (en) * | 2015-03-24 | 2015-07-29 | 江苏明伟万盛科技有限公司 | Electric car braking trailing type Fuzzy Predictive Control switching on/off circuit |
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