article-Rotor-Field-Oriented-Control-of-Five-Phas - This paper presents an application of rotor field
oriented control (RFOC) to a five-phase induction motor with
the combined fundamental and third harmonic currents. Based
on the motor model developed in a new d,q,d,q,n reference
frame, the complete theory and modeling of rotor field oriented
control of the five-phase induction motor are established.
Specifically, investigation is made to improve power density and
output torque of the five-phase induction motor by injecting
third harmonic of currents. By the proper dynamical
adjustment and steady state compensation, the rotor field
oriented control of the five-phase induction motor not only
achieves a high drive performance, but also controls the
fundamental and third harmonic flux and torque to generate the
desired nearly rectangular air-gap flux. Both simulation and
experimental results further verify the theoretical analysis and
demonstrate the feasibility and practical value of the proposed
five-phase induction motor drive.,2014-10-20 14:14:44,下载8次
article-Leila-Parsa.rar - This paper presents the sensorless direct torque
control (DTC) technique for five-phase interior permanent
magnet (IPM) motors. By using the introduced technique fast
torque response with low ripple in the stator flux and torque of
the five-phase interior permanent magnet motor can be achieved.
Having thirty-two space voltage vectors provides great flexibility
in selecting the inverter switching states. Therefore, the stator
flux and torque can be more precisely adjusted. Position
information and speed are being estimated based on the position
of the stator flux linkages. The mathematical model of the fivephase
interior permanent magnet motor is first derived. Later,
the speed sensorless direct torque control method of the fivephase
IPM is introduced. A five phase interior permanent
magnet motor and five leg IGBT based inverter were designed
and fabricated in the laboratory. The control method is
implemented on a TMS320C32 digital signal processor board.,2014-10-20 14:10:23,下载13次
article-Hamid-A.-Toliyat.rar - In this paper, direct torque control (DTC) of fivephase
induction motor is developed. A novel DTC scheme is
proposed, where fast torque response with low ripple in the
stator flux and torque of five-phase induction motor can be
achieved. In comparison with DTC for three phase induction
motor, the five-phase DTC system has thirty-two space voltage
vectors, which provide greater flexibility in selecting the inverter
switching states thus accomplishing a more precise control of the
stator flux and torque. Simulation and experimental results
clearly demonstrate a better dynamic and steady state
performance with DTC for five-phase induction motor, which
suggest that the combination of DTC with multi-phase induction
motor have a great practical prospect in motor drives.,2014-10-20 14:09:00,下载5次
article--Analysis-and-Simulation-of-Five-Phase.ra - In this paper, a dq model based on transformation
theory for five-phase induction machines is presented. A detailed
implementation of an indirect-type five-phase field-orientation
control including the hysteresis-type pulsewidth modulation
(PWM) current regulator is described. A method for continuous
and disturbance-free operation of a five-phase field-orientedcontrolled
induction motor drive with complete loss of one, two,
or even three legs of the inverter or motor phases is described.
A complete analysis and computer simulation of this control
technique is included.,2014-10-20 14:05:13,下载24次
01257704.rar - This paper analyses general active filters that can be
applicable to EMI filter, active power filter, etc. It gives
generalized equations presenting insertion losses and input
impedances of various kinds of active filters, from which the
requirements and limitations of active filters can be identified.
Based on this analysis, the effectiveness of the active filters
presented in several literatures is investigated. With the results of
this study, an appropriate topology of an active filter for a
specific application can be selected with a good rationale. ,2012-12-22 23:30:38,下载3次
01216591.rar - This paper deals with digital control of a series
active filter integrated with a diode rectifier where the series
active fdter is controlled to function as a current source.
A predictive current regulator is considered for the series ac-
tive filter to achieve good ripple characteristics and predictable
switching losses. The operating conditions, and the effect
thereof on the current regulator are considered and oversam-
pling and prediction of the load voltage is suggested to improve
the active filtering performance without increasing the switching
frequenc,2012-12-22 23:22:29,下载14次
00988679.rar - This paper presents a fully-digital-controlled shunt
active filter for harmonic termination of a power distribution
system. The main purpose of the active filter based on voltage
detection is not to compensate for current harmonics but to damp
out harmonic propagation caused by line inductors and shunt
capacitors for power factor correction. However, time and phase
delays inherent in digital controllers might lead to unsatisfactory
harmonic-damping performance although digital controllers are
preferable to analog controllers. This paper deals with the design
and implementation of a digital controller for a shunt active filter
based on voltage detection. Experimental results obtained from a
laboratory system developed in this paper verify the viability and
effectiveness of the fully-digital-controlled active filter.,2012-12-22 23:19:31,下载25次
00897012.rar - Passive filter and active filter are two ahnative strategi-
es to suppress harmonics in the electrical distribution system. Pas-
sive filter is dc and efficient but it may cause the resonimce
problem. Active film has become a mature tecblogy recently and
will considerably be generalized in the near fuhrre. In this paper, a
laboratmy which consists of 110 KVA six-pulse rectifier loads, one
50 KVA active filter, and six-step 54 KVAR passive f~ has been
monic current sou~ce are mvestigeted by expeaiment and simulation.
The passive lilter and active film are applied to dif€ erent harmonic
sources by turns and the harmonics aAer compensation are md.
It is observed fkom the experiment measurements, application of
passive filter or active filter to harmonic voltage source will amp@
the harmonic currents at the load side and larger capacity of filter is
needed. ,2012-12-22 23:10:39,下载13次
00759919.rar - his paper presents the analysis of real power system
events recorded at a light industrial site to determine the effect of
a shunt active filter on power quality. The shunt active fdter is
shown to improve power quality by lowering the distodon of the
supply voltage in both the transient and steady state. The shunt
active filter power rating and other design information are also
determined. The performance degradation of the shunt active
fdter when it has a limited rating is then demonstrated. In one
case the voltage distortion is made worse by the active fdter. The
requirements that various transient events, including capacitor
switching and induction motor starts, place on the shunt active
tilter design ace outlined. These requirements are such that the
required switching frequencies exceed those attainable with
ICBTs and transient ratings dominate the active fdter design
constraints. ,2012-12-22 23:06:36,下载5次
OPEN-SWITCH-FAULTS-DETECTION-AND.rar - This paper proposes an open switch faults detection and localization algorithm for shunt three
phase active filter topology. It mainly details converter configuration and examines a simple and
reliable optimised fault diagnosis method. The con verter topology is based on classical three-leg
active power filter topology. A ne w fault diagnosis method is proposed, based on classical
currents measurements. It includes combinatory logic to analyse and validate error signals. A
Hysteresis Control is applied before and after fault detection, which avoids any controller
reconfiguration. Simulation results obtained with Matlab/Simulink/Plecs tools prove the
effectiveness of this method. ,2012-12-22 22:55:12,下载31次