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energies
Article
ResearchonControlStrategiesofanOpen-End
WindingPermanentMagnetSynchronousDriving
Motor (OW-PMSM)-EquippedDualInverterwith
aSwitchableWindingModeforElectricVehicles
LiangChu1,Yi-fanJia 1,Dong-shengChen1,NanXu1,*,Yan-weiWang1,
XinTang1 andZheXu2
1 StateKeyLaboratoryofAutomotiveSimulationandControl, JilinUniversity,Changchun130022,China;
chuliang@jlu.edu.cn(L.C.); jiayf16@mails.jlu.edu.cn(Y.-f.J.); chends2313@mails.jlu.edu.cn(D.-s.C.);
ywwang15@mails.jlu.edu.cn(Y.-w.W.); tangxin16@mails.jlu.edu.cn(X.T.)
2 R&DCenter,ChinaFAWGroupCorporation,Changchun130011,China;xuzhe1@rdc.faw.com.cn
* Correspondence: nanxu@jlu.edu.cn;Tel.:+86-431-8509-5165
AcademicEditor:KingJetTseng
Received: 1March2017;Accepted: 27April2017;Published: 2May2017
Abstract:Anopen-endwindingpermanentmagnetsynchronousmotor (PMSM)hasa largerrange
ofspeedregulationthannormalPMSMwiththesameDCvoltage,andthecontrolmethodismore
flexible. It can alsomanage energydistribution between twopower sourceswithout aDC/DC
converter. ThispaperaimsatanelectricvehicleequippedwithOW-PMSMdrivesystemwithdual
powersourcesanddual inverters;basedonanalyzingtheexternalcharacteristicsofeachwinding
mode,weproposeawindingmodeswitchingstrategywhosetorquesaturationjudgmentalalgorithm,
which is insensitive tomotor’sparameters, couldautomaticallyrealizeupswitchingof thewinding
mode. Theproposedmulti-level currenthysteresismodulationalgorithmcouldset themajorpower
source and switch it at any time in independentmode,which accomplishes energydistribution
between twopower sources; its twocontrolmethods, lowswitching frequencymethodandhigh
powerdifferencemethod, could achievedifferent energydistribution effects. Simulation results
confirmthevalidityandeffectivenessofthewindingmodeswitchingstrategyandcurrentmodulation
method. They also show that an electric vehicle under theproposed controlmethodshas better
efficiencythanoneequippedwitha traditionalOW-PMSMdrivesystemunder traditionalcontrol.
Keywords: energymanagement; electricvehicle;open-endwindingpermanentmagnetsynchronous
motor (OW-PMSM);multi-level currenthysteresismodulation;windingmodeswitch
1. Introduction
Withmorerigorousdemandsforenergysavingsandenvironmentalprotection in industryand
thevigorousdevelopmentofelectricvehiclesdrivenbyelectricmotorsnowadays,PMSMhasbecome
the typicalelectricmotor inelectricvehiclesbecauseof itsadvantagessuchashigh-powerdensityand
asimplecontrolscheme. Inrecentyears,adrivesystemconstitutinganOW-PMSM(open-endwinding
permanentmagnetsynchronousmotor)anddual invertershasreceivedextensiveapplication[1–5].
This system is actuatedvia attachingboth ends ofOW-PMSM’s statorwindingswith an inverter.
Comparedto the traditionalY-connectionPMSMdrivesystem, ithasanexpandedspeedrangeanda
moreflexiblecontrolmethod[6–13]; thespeedrange is largerwith thesameDCbusvoltage,or the
DCbusvoltage reduces byhalfwith the same speed range. Moreover, it allowsdual inverters to
useelectricity fromdifferentelectric sourcesand,whenworking inadualelectric sourcescondition,
it couldmanageenergydistributionbetweenthe twosourceswithoutaDC/DCconverter [14–16].
Energies 2017,10, 616;doi:10.3390/en10050616 www.mdpi.com/journal/energies242
Emerging Technologies for Electric and Hybrid Vehicles
- Title
- Emerging Technologies for Electric and Hybrid Vehicles
- Editor
- MDPI
- Location
- Basel
- Date
- 2017
- Language
- English
- License
- CC BY-NC-ND 4.0
- ISBN
- 978-3-03897-191-7
- Size
- 17.0 x 24.4 cm
- Pages
- 376
- Keywords
- electric vehicle, plug-in hybrid electric vehicle (PHEV), energy sources, energy management strategy, energy-storage system, charging technologies, control algorithms, battery, operating scenario, wireless power transfer (WPT)
- Category
- Technik