CN106026687A - Permanent magnet synchronous electric drive system - Google Patents

Permanent magnet synchronous electric drive system Download PDF

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Publication number
CN106026687A
CN106026687A CN201610452076.7A CN201610452076A CN106026687A CN 106026687 A CN106026687 A CN 106026687A CN 201610452076 A CN201610452076 A CN 201610452076A CN 106026687 A CN106026687 A CN 106026687A
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CN
China
Prior art keywords
conversion equipment
magnet synchronous
drive system
circuit
permanent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610452076.7A
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Chinese (zh)
Inventor
高剑
黄守道
罗德荣
樊鹏
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Hunan University
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Hunan University
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Priority to CN201610452076.7A priority Critical patent/CN106026687A/en
Publication of CN106026687A publication Critical patent/CN106026687A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/453Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M5/458Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068Battery or charger load switching, e.g. concurrent charging and load supply
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/08Arrangements for controlling the speed or torque of a single motor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20Charging or discharging characterised by the power electronics converter

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

The invention provides a permanent magnet synchronous electric drive system. The permanent magnet synchronous electric drive system comprises a permanent magnet synchronous generator, a first conversion device, a second conversion, a permanent magnet synchronous motor, a first detector, a second detector and a controller, wherein the output end of the permanent magnet synchronous generator is connected to the input end of the first conversion device, the output end of the first conversion device is connected to the input end of the second conversion device, and the output end of the second conversion device is connected to the input end of the permanent magnet synchronous motor; the first detector and the second detector are connected to the controller respectively; the first detector is used for detecting direct-current bus voltage and sending the direct-current bus voltage to the controller, the second detector is used for detecting the operational state of load and sending the operation state of load to the controller, the controller is used for sending control signals to the first conversion device and the second conversion device according to the two signals, and the first conversion device and the second conversion device are used for carrying out conversion according to the two control signals so as to adjust output power of the permanent magnet synchronous generator and output power output to the permanent magnet synchronous motor. The permanent magnet synchronous electric drive system can realize unity power factor control.

Description

A kind of permanent-magnet synchronous power drive system
Technical field
The present invention relates to technical field of motors, particularly relate to a kind of permanent-magnet synchronous power drive system.
Background technology
, there is limitation in traditional motor driven systems.First, drive system power density is low, The capacity causing motor volume, weight and power device increases.For the drivetrain that power is bigger System, the simple motor using bigger specification and current transformer so that the specific power of system, compare energy Amount reduces.Volume is big, and power density is low is the subject matter of conventional drive system.
When current motor driven systems uses uncontrollable rectifier, power factor is low, and uncontrollable; During motor braking, easily produce the highest feedback energy and pumping voltage, at conventional drive system Middle dependence DC capacitor absorbs energy and causes system unreliable.Secondly, modern electrical machine drive system Require in wider rotating speed and torque working area, keep higher energy efficiency, can realize again High-energy organic efficiency during raw braking.Conventional drive system speed adjustable range is narrower, it is difficult to realize Big torque, the performance requirement of high velocity output high-power are provided in low regime.
Summary of the invention
The present invention provides a kind of and overcomes the problems referred to above or solve the one of the problems referred to above at least in part Plant permanent-magnet synchronous power drive system.
The present invention provides a kind of permanent-magnet synchronous power drive system, including: for producing alternating current Magneto alternator, for convert alternating current to galvanic the first controlled conversion equipment, For by the second controlled conversion equipment of converting direct-current power into alternating-current power, be used for for load provide The permasyn morot of power, the first detector, the second detector and controller;
The outfan of described magneto alternator connects the input of described first conversion equipment, The outfan of described first conversion equipment connects the input of described second conversion equipment, and described the The outfan of two conversion equipments connects the input of described permasyn morot;Described first inspection Survey device and described second detector connects described controller respectively;Described first detector detects institute State the DC bus-bar voltage on the connection line of the first conversion equipment and described second conversion equipment, And described DC bus-bar voltage is sent to controller, described second detector detects described load Operation conditions, and the operation conditions of described load is sent to described controller, described control Device sends the first control signal according to described DC bus-bar voltage to described first conversion equipment, and Operation conditions according to described load sends the second control signal, institute to described second conversion equipment State the first conversion equipment to change according to described first control signal, same to adjust described permanent magnetism The output of step electromotor, described second conversion equipment is carried out according to described second control signal Conversion, to adjust output to the output of described permasyn morot.
Preferably, described permanent-magnet synchronous power drive system also includes: for storing the super of electric energy Capacitor energy storage circuit and switching circuit;
Described super capacitor energy-storage circuit connects described switching circuit, and described switching circuit connects institute Stating the first conversion equipment and described second conversion equipment, described controller connects described switching circuit;
Described controller sends the 3rd control according to described DC bus-bar voltage to described switching circuit Signal;Described switching circuit switches described super capacitor energy-storage electricity according to described 3rd control signal Road energy storage electric energy or release electric energy.
Preferably, described switching circuit includes: two-way DC/DC changer;
Described two-way DC/DC changer includes the first switching tube, second switch pipe, the one or two pole Pipe and the second diode;The two ends of described first diode are connected to described first switching tube Two conduction terminal form the first lateral circuit, the two ends of described second diode connect described respectively Two conduction terminal of second switch pipe form the second lateral circuit, described first lateral circuit and described Two lateral circuits are in parallel with described first conversion equipment and described second conversion equipment after connecting, and even It is connected between the outfan of described first conversion equipment and the input of described second conversion equipment; Described super capacitor energy-storage circuit and described second lateral circuit are in parallel;
Described controller connects described first switching tube and the control end of described second switch pipe, uses According to described DC bus-bar voltage to the control end of described first switching tube and described second switch The control end of pipe sends the 3rd control signal, and two conduction terminal of described first switching tube are according to institute Described 3rd control signal that receives of termination that controls stating the first switching tube is turned on or off, described Two conduction terminal of second switch pipe according to described first switching tube control termination receive described in 3rd control signal is turned on or off.
Preferably, described first switching tube and described second switch pipe are audion or field effect transistor.
Preferably, described two-way DC/DC changer also includes the first inductance;
One end of described first inductance is connected to described first lateral circuit and described second lateral circuit Using the outfan as described two-way DC/DC changer on junction point.
Preferably, described super capacitor energy-storage circuit includes the second inductance, the 3rd inductance and super Electric capacity;
Described 3rd inductance and the series connection of described super capacitor form series circuit, described series circuit With described second inductance in parallel, and the electricity in parallel of described series circuit and described second inductance in parallel The two ends on road are as two outfans of described super capacitor energy-storage circuit.
Preferably, described first conversion equipment and described second conversion equipment use two-way PWM to become Stream device.
Preferably, described two-way PWM converter uses the most double PWM converter.
Preferably, described permanent-magnet synchronous power drive system also includes dc-link capacitance;
Described first conversion equipment, described dc-link capacitance and described second conversion equipment are in parallel.
Preferably, described first conversion equipment and the second conversion equipment all use three controlled phase transformations Stream device.
As shown from the above technical solution, described the first of the permanent-magnet synchronous power drive system of the present invention Conversion equipment draws electric energy from described magneto alternator, needs to absorb meritorious and nothing from electrical network Merit power, operates in rectification duty, by detecting described first conversion equipment and described the DC bus-bar voltage on the connection line of two conversion equipments, adjusts described magneto alternator Output, can realize unity power factor control, the most described magneto alternator exports The synchronous positive resistance characteristic of voltage x current.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below The accompanying drawing used required in embodiment or description of the prior art will be briefly described, aobvious and Easily insight, the accompanying drawing in describing below is only some embodiments of the present invention, for this area From the point of view of those of ordinary skill, on the premise of not paying creative work, it is also possible to according to these Figure obtains other accompanying drawing.
Fig. 1 is the structure chart of a kind of permanent-magnet synchronous power drive system that one embodiment of the invention provides;
Fig. 2 is the energy stream of a kind of permanent-magnet synchronous power drive system that one embodiment of the invention provides Cardon.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical side in the embodiment of the present invention Case is clearly and completely described, it is clear that described embodiment is only the present invention one Divide embodiment rather than whole embodiments.Based on the embodiment in the present invention, this area is general The every other embodiment that logical technical staff is obtained under not making creative work premise, Broadly fall into the scope of protection of the invention.
Fig. 1 is the structure chart of a kind of permanent-magnet synchronous power drive system that one embodiment of the invention provides;
Fig. 2 is the energy stream of a kind of permanent-magnet synchronous power drive system that one embodiment of the invention provides Cardon.
A kind of permanent-magnet synchronous power drive system as depicted in figs. 1 and 2, including: it is used for producing The magneto alternator P1 of alternating current, for converting alternating current to galvanic controlled the One conversion equipment, for by the second controlled conversion equipment of converting direct-current power into alternating-current power, use In for load provide the permasyn morot P2 of power, the first detector, the second detector with And controller;First detector, the second detector and controller are the most not shown.
The outfan of described magneto alternator P1 connects the input of described first conversion equipment, The outfan of described first conversion equipment connects the input of described second conversion equipment, and described the The outfan of two conversion equipments connects the input of described permasyn morot P2;Described first Detector and described second detector connect described controller respectively;Described first detector detection DC bus-bar voltage on the connection line of described first conversion equipment and described second conversion equipment, And described DC bus-bar voltage is sent to controller, described second detector detects described load Operation conditions, and the operation conditions of described load is sent to described controller, described control Device sends the first control signal according to described DC bus-bar voltage to described first conversion equipment, and Operation conditions according to described load sends the second control signal, institute to described second conversion equipment State the first conversion equipment to change according to described first control signal, same to adjust described permanent magnetism The output of step electromotor P1, described second conversion equipment enters according to described second control signal Row conversion, to adjust output to the output of described permasyn morot P2.
Described first conversion equipment of the permanent-magnet synchronous power drive system of the present invention is same from described permanent magnetism Step electromotor P1 draws electric energy, needs to absorb meritorious and reactive power from electrical network, operates in rectification Duty, by detecting described first conversion equipment and the connecting line of described second conversion equipment DC bus-bar voltage on road, adjusts the output of described magneto alternator P1, can be real Existing unity power factor control, the most described magneto alternator P1 output voltage current in phase position Positive resistance characteristic.
Operation conditions according to described load adjusts defeated to described permasyn morot P2 of output Go out power, so that system meets the power demand of load.
As it is shown in figure 1, as a kind of preferred embodiment, described permanent-magnet synchronous power drive system is also Including: for storing super capacitor energy-storage circuit E and switching circuit F of electric energy;
Described super capacitor energy-storage circuit E connects described switching circuit F, described switching circuit F Connect described first conversion equipment and described second conversion equipment, cut described in the connection of described controller Change circuit F;
Described controller sends the 3rd control according to described DC bus-bar voltage to described switching circuit F Signal processed;Described switching circuit F switches the storage of described super capacitor according to described 3rd control signal Can circuit E energy storage electric energy or release electric energy.
It is understood that it is pre-to detect that DC bus-bar voltage is higher than at described first detector If during value (generally rated value), described switching circuit F is operated in decompression mode, described super Level capacitor energy storage circuit E is in charged state, thus is stored by unnecessary energy;Institute State the first detector and detect when DC bus-bar voltage is less than preset value (generally rated value), Described switching circuit F is operated in boost mode, and described super capacitor energy-storage circuit E is in electric discharge State, provides electric energy for described permasyn morot P2.
As a kind of preferred embodiment, described switching circuit F includes: two-way DC/DC changer;
Described two-way DC/DC changer include the first switching tube K1, second switch pipe K2, One diode D1 and the second diode D2;The two ends of described first diode D1 connect respectively Two conduction terminal at described first switching tube K1 form the first lateral circuit, described second diode The two ends of D2 connect two conduction terminal of described second switch pipe K2 respectively and form the second lateral circuit, With described first conversion equipment and described after described first lateral circuit and described second lateral circuit series connection Second conversion equipment is in parallel, and is connected to the outfan and described second of described first conversion equipment Between the input of conversion equipment;Described super capacitor energy-storage circuit E and described second lateral circuit In parallel;
Described controller connects described first switching tube K1 and the control of described second switch pipe K2 End, for according to described DC bus-bar voltage to the control end of described first switching tube K1 and described The control end of second switch pipe K2 sends the 3rd control signal, the two of described first switching tube K1 The described 3rd control letter that individual conduction terminal receives according to the control termination of described first switching tube K1 Number being turned on or off, two conduction terminal of described second switch pipe K2 are according to described first switching tube Described 3rd control signal that the control termination of K1 receives is turned on or off.
The operation principle of this switching circuit F is: dc bus detected at described first detector When voltage is higher than preset value (generally rated value), controller controls the first switching tube K1 conducting, Second switch pipe K2 ends, and described switching circuit F is operated in decompression mode, super capacitor energy-storage Circuit E is in charged state, thus is stored by unnecessary energy;Examine at described detector When measuring DC bus-bar voltage less than preset value (generally rated value), controller controls first Switching tube K1 ends, and second switch pipe K2 turns on, and described switching circuit F is operated in a liter pressing mold Formula, super capacitor energy-storage circuit E is in discharge condition, carries for described permasyn morot P2 For electric energy.
As a kind of preferred embodiment, described first switching tube K1 and described second switch pipe K2 For audion or field effect transistor.Can also be other switching tubes, the present invention limit.
As a kind of preferred embodiment, described two-way DC/DC changer also includes the first inductance L1;
One end of described first inductance L1 is connected to described first lateral circuit and described second lateral circuit Junction point on using the outfan as described two-way DC/DC changer.
It is understood that described first inductance L1 can stop exchange, logical direct current, it is ensured that institute State the good charging and discharging performance of super capacitor P3.
It is understood that the present invention also can use its in addition to above-mentioned two-way DC/DC changer The two-way DC/DC changer of his structure, the present invention does not limits.
As a kind of preferred embodiment, described super capacitor energy-storage circuit E include the second inductance L2, 3rd inductance L3 and super capacitor P3;
Described 3rd inductance L3 and described super capacitor P3 series connection forms series circuit, described string Connection circuit and described second inductance L2 are in parallel, and described series circuit and described second inductance L2 The two ends of parallel circuit in parallel are as two outfans of described super capacitor energy-storage circuit E.
In Fig. 1, the one end in two outfans of described super capacitor energy-storage circuit E connects institute State the other end of the first inductance L1, in two outfans of described super capacitor energy-storage circuit E The other end connects another outfan of described two-way DC/DC changer.
As a kind of preferred embodiment, described first conversion equipment and described second conversion equipment are adopted Use two-way PWM converter.
As a kind of preferred embodiment, described two-way PWM converter uses the most double PWM Current transformer.
It is understood that the present invention controls function spirit due to the most double PWM converter Live, AC side Power Factor can be in harmonious proportion the plurality of advantages such as DC voltage is controlled, therefore can improve tune Speed performance.
As a kind of preferred embodiment, described permanent-magnet synchronous power drive system also includes dc bus Electric capacity PC;
Described first conversion equipment, described dc-link capacitance PC and described second conversion equipment In parallel.
It is understood that described dc-link capacitance PC can also play storage electric energy and release The effect of electric energy.
As it is shown in figure 1, as a kind of preferred embodiment, described first conversion equipment and second turn Changing device all uses the 3-phase power converter of controlled (generally AC and DC is controlled), and described first Conversion equipment is the first 3-phase power converter VSC1, and described second conversion equipment is the second three-phase unsteady flow Device VSC2.
Described two-way PWM converter includes the first 3-phase power converter VSC1 and that structure is identical Two 3-phase power converter VSC2.But, described two-way PWM converter is not limited to this structure.
It is understood that described first detector and the second detector can use existing detection Device realizes.
The present invention improves from motor uses, forms a kind of two permanent magnet synchronous motors coaxial Drive system.
The present invention uses magneto to replace direct current generator, alternating current generator, and volume is little, reliability High.
The described first 3-phase power converter VSC1 of the permanent-magnet synchronous power drive system of the present invention is from institute State magneto alternator P1 and draw electric energy, need to absorb meritorious and reactive power, fortune from electrical network Row, in rectification duty, can realize unity power factor control, and the most described permanent-magnet synchronous generates electricity The positive resistance characteristic of machine P1 output voltage current in phase position.Described second 3-phase power converter VSC2 is (i.e. Second conversion equipment) it is used for driving described permanent magnetism same through PWM by DC bus-bar voltage Step motor P2, energy is become by described two-way PWM from described magneto alternator P1 Stream device flow to described permasyn morot P2.
Two-way DC/DC changer can change buck ratio by controlling switching tube dutycycle D, Feedback energy during described permasyn morot P2 braking and pumping voltage is absorbed, also with this It is used for storing the dump energy that described magneto alternator P1 end produces so that both sides energy is put down Weighing apparatus, increases the reliability of system.Two-way DC/DC changer can eliminate load wide variation Time DC voltage distortion problem, though make circuit underloading heavy duty, all can normally work.That is, The present invention is reached by the super capacitor energy-storage circuit E and switching circuit F for storing electric energy The effect above, typically uses this function when generating and power consumption uneven (generally fault), During as braked, store electric energy, during climbing, discharge electric energy.
The present invention adds DC/DC circuit (the i.e. super capacitor energy-storage with super capacitor P3 The circuit that circuit and two-way DC/DC changer are formed) energy pump liter problem can be solved.
Due to the fact that super capacitor P3 capacity is big, therefore storage electric energy and release electric energy are the fastest.
The present invention, with AC induction motor drive system as object, improves speed adjusting performance, improves system System reliability and adaptive load ability, increase power density, be a kind of brand-new permanent magnet synchronous electric The method for designing of drive system.That is, the permanent-magnet synchronous power drive system of the present invention has high power Density, high efficiency, the feature of speed-regulating range width.
The present invention can be applicable on car, i.e. load is the driving means on car, the most described load Operation conditions can be moment of torsion, rotating speed etc..Certainly, also can be applicable on other power-equipments.
It should be noted that, in all parts of assembly of the invention, to be realized according to it Function and parts therein have been carried out logical partitioning, but, the present invention is not only restricted to this, can As required all parts repartitioned or to combine, for example, it is possible to by some portions Part is combined as single parts, or some parts can be further broken into more subassembly.
Embodiment of above is only suitable to illustrate the present invention, and not limitation of the present invention is relevant The those of ordinary skill of technical field, without departing from the spirit and scope of the present invention, Can also make a variety of changes and modification, the technical scheme of the most all equivalents falls within the present invention Category, the scope of patent protection of the present invention should be defined by the claims.

Claims (10)

1. a permanent-magnet synchronous power drive system, it is characterised in that including: be used for producing exchange The magneto alternator of electricity, for converting alternating current to galvanic controlled first conversion Device, for by the second controlled conversion equipment of converting direct-current power into alternating-current power, be used for being negative Carry and the permasyn morot of power, the first detector, the second detector and controller are provided;
The outfan of described magneto alternator connects the input of described first conversion equipment, The outfan of described first conversion equipment connects the input of described second conversion equipment, and described the The outfan of two conversion equipments connects the input of described permasyn morot;Described first inspection Survey device and described second detector connects described controller respectively;Described first detector detects institute State the DC bus-bar voltage on the connection line of the first conversion equipment and described second conversion equipment, And described DC bus-bar voltage is sent to controller, described second detector detects described load Operation conditions, and the operation conditions of described load is sent to described controller, described control Device sends the first control signal according to described DC bus-bar voltage to described first conversion equipment, and Operation conditions according to described load sends the second control signal, institute to described second conversion equipment State the first conversion equipment to change according to described first control signal, same to adjust described permanent magnetism The output of step electromotor, described second conversion equipment is carried out according to described second control signal Conversion, to adjust output to the output of described permasyn morot.
Permanent-magnet synchronous power drive system the most according to claim 1, it is characterised in that institute State permanent-magnet synchronous power drive system also to include: for store the super capacitor energy-storage circuit of electric energy with And switching circuit;
Described super capacitor energy-storage circuit connects described switching circuit, and described switching circuit connects institute Stating the first conversion equipment and described second conversion equipment, described controller connects described switching circuit;
Described controller sends the 3rd control according to described DC bus-bar voltage to described switching circuit Signal;Described switching circuit switches described super capacitor energy-storage electricity according to described 3rd control signal Road energy storage electric energy or release electric energy energy storage electric energy or release electric energy.
Permanent-magnet synchronous power drive system the most according to claim 2, it is characterised in that institute State switching circuit to include: two-way DC/DC changer;
Described two-way DC/DC changer includes the first switching tube, second switch pipe, the one or two pole Pipe and the second diode;The two ends of described first diode are connected to described first switching tube Two conduction terminal form the first lateral circuit, the two ends of described second diode connect described respectively Two conduction terminal of second switch pipe form the second lateral circuit, described first lateral circuit and described Two lateral circuits are in parallel with described first conversion equipment and described second conversion equipment after connecting, and even It is connected between the outfan of described first conversion equipment and the input of described second conversion equipment; Described super capacitor energy-storage circuit and described second lateral circuit are in parallel;
Described controller connects described first switching tube and the control end of described second switch pipe, uses According to described DC bus-bar voltage to the control end of described first switching tube and described second switch The control end of pipe sends the 3rd control signal, and two conduction terminal of described first switching tube are according to institute Described 3rd control signal that receives of termination that controls stating the first switching tube is turned on or off, described Two conduction terminal of second switch pipe according to described first switching tube control termination receive described in 3rd control signal is turned on or off.
Permanent-magnet synchronous power drive system the most according to claim 3, it is characterised in that institute State the first switching tube and described second switch pipe is audion or field effect transistor.
Permanent-magnet synchronous power drive system the most according to claim 3, it is characterised in that institute State two-way DC/DC changer and also include the first inductance;
One end of described first inductance is connected to described first lateral circuit and described second lateral circuit Using the outfan as described two-way DC/DC changer on junction point.
Permanent-magnet synchronous power drive system the most according to claim 2, it is characterised in that institute State super capacitor energy-storage circuit and include the second inductance, the 3rd inductance and super capacitor;
Described 3rd inductance and the series connection of described super capacitor form series circuit, described series circuit With described second inductance in parallel, and the electricity in parallel of described series circuit and described second inductance in parallel The two ends on road are as two outfans of described super capacitor energy-storage circuit.
Permanent-magnet synchronous power drive system the most according to claim 1, it is characterised in that institute State the first conversion equipment and described second conversion equipment uses two-way PWM converter.
Permanent-magnet synchronous power drive system the most according to claim 7, it is characterised in that institute State two-way PWM converter and use the most double PWM converter.
Permanent-magnet synchronous power drive system the most according to claim 1, it is characterised in that institute State permanent-magnet synchronous power drive system and also include dc-link capacitance;
Described first conversion equipment, described dc-link capacitance and described second conversion equipment are in parallel.
Permanent-magnet synchronous power drive system the most according to claim 1, it is characterised in that Described first conversion equipment and the second conversion equipment all use controlled 3-phase power converter.
CN201610452076.7A 2016-06-21 2016-06-21 Permanent magnet synchronous electric drive system Pending CN106026687A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
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CN106787086A (en) * 2016-12-30 2017-05-31 湖南大学 A kind of pair of PWM permanent magnetism power-driven system and its control method
CN107070335A (en) * 2016-12-30 2017-08-18 湖南大学 Double PWM permanent magnetism power-driven system torque feed forward control methods and its control device
CN107154755A (en) * 2017-07-17 2017-09-12 江苏开璇智能科技有限公司 High power permanent magnet synchronous motor brake power recovering device and control method
CN108270375A (en) * 2017-12-29 2018-07-10 河南北瑞电子科技有限公司 A kind of miniature combustion engine synchronous generator drive dynamic control device
CN109687433A (en) * 2018-12-11 2019-04-26 中国科学院电工研究所 A kind of flexibility substation structure
CN109842315A (en) * 2019-04-11 2019-06-04 美的集团武汉制冷设备有限公司 Drive control circuit and household appliance

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Application publication date: 20161012