# Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370)

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Displaying Results 1 - 25 of 74
• ### IEEE industry applications conference thirty-fourth IAS annual meeting [front matter]

Publication Year: 1999, Page(s):i - xxxix
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• ### Two-dimensional finite element analysis of a high force density linear switched reluctance machine including three-dimensional effects

Publication Year: 1999, Page(s):2235 - 2241
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First Page of the Article
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• ### Author index

Publication Year: 1999, Page(s):2671 - 2676
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• ### Adaptive sliding mode observer for speed sensorless control of induction motors

Publication Year: 1999, Page(s):2277 - 2283 vol.4
Cited by:  Papers (15)
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This paper presents an adaptive sliding mode observer for speed sensorless field-oriented control of induction motors. The observer detects the rotor flux components in the two-phase stationary reference frame by the motor electrical equations. The motor speed is identified by an additional relation obtained by a Lyapunov function. The analytical development of the sliding observer and the speed i... View full abstract»

• ### Radial force characteristics of a switched reluctance machine

Publication Year: 1999, Page(s):2250 - 2258 vol.4
Cited by:  Papers (29)
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The operation of a switched reluctance machine with eccentric rotor positions creates asymmetrical airgap flux distributions and results in unbalanced magnetic pull. This paper comprehensively investigates the static and dynamic radial force characteristics of an 18/12 switched reluctance machine with unbalanced operation. A powerful magnetic equivalent circuit (MEC) modelling approach is develope... View full abstract»

• ### Design of a linear switched reluctance machine

Publication Year: 1999, Page(s):2267 - 2274 vol.4
Cited by:  Papers (6)
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A standard design procedure for a single sided and longitudinal flux based linear switched reluctance machine is developed in this paper. The proposed design procedure utilises the rotating switched reluctance machine design by converting the specifications of the linear machine in to the equivalent rotary machine. The machine design is carried out in the rotary domain which is then transformed ba... View full abstract»

• ### A general three-phase PFC controller. I. For rectifiers with a parallel-connected dual boost topology

Publication Year: 1999, Page(s):2504 - 2511 vol.4
Cited by:  Papers (7)
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A general constant-frequency power-factor-correction (PFC) controller is proposed for three-phase rectifiers with parallel-connected dual-boost topologies. This paper shows that unity fundamental power factor and low current distortion in all three phases can be realized by one-cycle control of a linear combination of the inductor currents using one integrator with reset along with a few logic com... View full abstract»

• ### Two-dimensional finite element analysis of a high force density linear switched reluctance machine including three-dimensional effects

Publication Year: 1999, Page(s):2235 - 2241 vol.4
Cited by:  Papers (1)
| | PDF (160 KB)

This paper presents results of a finite element analysis (FEA) study on the high force density linear switched reluctance motor. Analytical study by means of electric circuit analog of the same motor was presented earlier by the author (1995). For this refined analysis, two-dimensional (2D) FEA is used along with a novel way of accounting for three-dimensional (3D) effects. It is shown that with m... View full abstract»

• ### Delta-Delta' three-phase boost power factor correction circuit operating in discontinuous conduction mode

Publication Year: 1999, Page(s):2497 - 2503 vol.4
Cited by:  Papers (2)  |  Patents (1)
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The proposed three-phase power factor correction circuit represents a series-parallel combination of two boost-delta stages. Six bi-directional or three quasi tri-directional' switches are needed for the practical implementation. The boosting inductance and rectifying diode bridges are split, which makes possible a smaller individual size and better cooling. The circuit is operating in discontinu... View full abstract»

• ### Design considerations of switched reluctance motors: vibration and control issues

Publication Year: 1999, Page(s):2259 - 2266 vol.4
Cited by:  Papers (14)  |  Patents (1)
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The vibration produced in a switched reluctance motor (SRM) may be viewed from the manner radial component of the electromagnetic force and stator structure interact. Machine dimensions such as effective airgap length can alter the distribution of the radial attraction forces acting on the stator structure. In addition, design of the machine affects frequency characteristics of the stator. Further... View full abstract»

• ### The properties of the needle-ring shaped DC ion airflow generator

Publication Year: 1999, Page(s):2483 - 2486 vol.4
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A DC ion airflow generator with needle-ring electrode arrangement has been investigated for use in electrostatic elimination systems. The experimental results show that the amount of drawing-off ion airflow I 2 and the drawing-off efficiency η can be greatly increased by connecting an inducing resistor in series with the inducing ring, and they reach saturation values as the resista... View full abstract»

• ### Experimental 400 kW sec double-layer capacitor energy storage system

Publication Year: 1999, Page(s):2448 - 2453 vol.4
Cited by:  Papers (1)
| | PDF (720 KB)

Double-layer power capacitors (DLCs) are very attractive in several applications and specially in high power load shaving. However, the electrical behaviour of these devices is considerably different from the traditional capacitors. Due to the low voltage of the single cell DLC, many devices have to be connected in series to reach the technically required voltages. This paper presents the aspects ... View full abstract»

• ### A power line conditioner based on flying capacitor multilevel voltage source converter with phase shift SPWM

Publication Year: 1999, Page(s):2337 - 2343 vol.4
Cited by:  Papers (6)
| | PDF (572 KB)

In this paper, a new power line conditioning system is proposed. This system is constructed by a flying capacitor multilevel VSC (voltage source converter) and two reactors. The phase-shift SPWM (sinusoidal pulse width modulation) switching scheme is applied to control the switching devices of this converter. Due to this multilevel VSC and the switching scheme applied to this converter, the system... View full abstract»

• ### A novel solid-state-commutator PM motor arrangement for EV application

Publication Year: 1999, Page(s):2545 - 2551 vol.4
Cited by:  Papers (6)  |  Patents (3)
| | PDF (508 KB)

Current-regulated PWM voltage-source inverters with either sinusoidal or square-wave output are the most common power electronic converters used to feed PM motors. Square-wave fed permanent magnet motors yield a higher torque whereas the torque ripple of sine-wave fed brushless motors is significantly lower. An innovative topology of DC brushless motor with the stator phases being fed in series by... View full abstract»

• ### Modified deadbeat digital controller for UPS with 3-phase PWM inverter

Publication Year: 1999, Page(s):2208 - 2215 vol.4
Cited by:  Papers (8)
| | PDF (528 KB)

In this paper, a modified deadbeat control scheme is proposed for 3-phase PWM inverter control such as uninterruptible power supply (UPS). The deadbeat controller, which is generally constructed with voltage and current controller in UPS, is used for fast transient response, but this might have an instability due to the same pole placement of the double controller. To solve this instability proble... View full abstract»

• ### Modeling and control of unbalanced three-phase systems containing PWM converters

Publication Year: 1999, Page(s):2173 - 2179 vol.4
Cited by:  Papers (7)
| | PDF (476 KB)

This paper proposes two complex vector models to characterize three-phase unbalanced systems with four wires and containing PWM converters. In the first case, the three-phase system is decomposed in orthogonal odq components. A complex vector model is then built from the dq components and o component. In the second case a complex vector model is introduced by decomposing the system in three single... View full abstract»

• ### Small signal stability for single phase inverter connected to stiff AC system

Publication Year: 1999, Page(s):2180 - 2187 vol.4
Cited by:  Papers (62)
| | PDF (652 KB)

A control technique based on frequency and voltage droop is used to control a single phase inverter connected to a stiff AC system. The small signal analysis of the system is presented, which allows the behavior of the system to be obtained for the functions of frequency and voltage droop. Simulation results and experimental results for the different frequency and voltage droop are presented View full abstract»

• ### Virtual vectors based predictive control of torque and flux of induction motor and speed sensorless drives

Publication Year: 1999, Page(s):2606 - 2613 vol.4
Cited by:  Papers (4)
| | PDF (456 KB)

In this paper, a simple scheme of predictive control of torque and flux is proposed to decrease the torque ripple and improve the flux locus distortion at low speed range in the direct torque control (DTC) of an induction motor. The concept of virtual vectors is also introduced to generate a fixed and higher switching frequency for the PWM invertor. Also, a MRAS (model reference adaptive control s... View full abstract»

• ### Formation of ceramic thin films using electrospray in cone-jet mode

Publication Year: 1999, Page(s):2487 - 2493 vol.4
Cited by:  Papers (1)
| | PDF (812 KB)

An electrostatic atomization technique has been developed to generate ultra-fine spray droplets of ZrO2 and SiC ceramic suspensions in a range of a few micrometers with a narrow size distribution. The aim of this work is to deposit uniform thin films of these ceramic materials on alloy substrates. Compared to some other thin film deposition techniques, such as chemical vapour deposition... View full abstract»

• ### Radial force calculation and acoustic noise prediction in switched reluctance machines

Publication Year: 1999, Page(s):2242 - 2249 vol.4
Cited by:  Papers (6)
| | PDF (584 KB)

The paper presents an analytical method for calculating the radial force and predicting the acoustic noise in switched reluctance machines. The main source of acoustic noise in an SRM is the radial magnetic force inducing resonant vibration with circumferential mode-shapes of the stator. An analytical relationship between radial force and radial vibration is determined, which can be used to predic... View full abstract»

• ### Resonant-boost-input three-phase power factor corrector using IGBT switches with ZCS switching condition

Publication Year: 1999, Page(s):2526 - 2529 vol.4
| | PDF (248 KB)

The paper presents a three-phase power factor corrector circuit with two IGBTs as power switches working in the zero-current soft-switching (ZCS) condition. The inductor current is partly continuous and partly discontinuous. The current stress on the switches is low and the output DC voltage is much closer to the peak of the AC line voltage. The operation is explained and the simulation and experi... View full abstract»

• ### The effect of conductivity on the spraying of dielectric liquids

Publication Year: 1999, Page(s):2478 - 2482 vol.4
Cited by:  Papers (1)
| | PDF (268 KB)

The atomisation of liquids by high electrostatic fields-usually obtained by applying high potentials to sharp electrodes-is a familiar phenomenon. Despite considerable recent research activity, there is a paucity of data relating atomised droplet size to applied potential, liquid flow rate and liquid conductivity, particularly for a multi-ligament spray. An experiment is described in which the spr... View full abstract»

• ### Time coordination method for power system protection by evolutionary algorithm

Publication Year: 1999, Page(s):2348 - 2354 vol.4
Cited by:  Papers (4)
| | PDF (476 KB)

A typical industrial power network may consist up to hundreds of pieces of equipment and requires even more protection relays to protect the system. Each protection relay in the power network needs to be coordinated with the relays protecting the adjacent equipment. The overall protection coordination is thus very complicated. A new concept of protection coordination by time is introduced in this ... View full abstract»

• ### A self-sensing homopolar magnetic bearing: analysis and experimental results

Publication Year: 1999, Page(s):2560 - 2565 vol.4
Cited by:  Papers (10)
| | PDF (480 KB)

One of the chief obstacles to constructing a reliable, low-cost, practical magnetic bearing is designing a suitable position sensor. A homopolar magnetic bearing that uses the same coils to stabilize the rotor and sense its position is introduced. A prototype bearing has been built and successfully used to stabilize a rotor. The electromagnetic analysis of the self-sensing function, the implementa... View full abstract»

• ### Parallel computation of continually on-line trained neural networks for identification and control of induction motors

Publication Year: 1999, Page(s):2364 - 2371 vol.4
Cited by:  Papers (4)
| | PDF (668 KB)

This paper presents an adaptive parallel processing control scheme, using an artificial neural network (ANN) which is trained while the controller is operating online. The proposed control structure incorporates five-multilayer feedforward ANNs, which are online trained using the Levenburg-Marquadt learning method. The five networks are used exclusively for system estimation. The estimation mechan... View full abstract»