D.K. Reitan

University of Wisconsin–Madison

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Co-Authors

A.G. Phadke

Virginia Tech

N. RamaRao

National Institute of Technology Warangal

Thomas J. Higgins

Baystate Health

H. A. Peterson

Manor Hospital

M. Bahari-Kashani

University of Wisconsin–Madison

Thomas James Higgins

University of Wisconsin–Madison

Roger L. Berger

Arizona State University

Michael J. Wozny

Rensselaer Polytechnic Institute

J. S. Meditch

H. G. Frostick

Westinghouse Electric (United States)

Cooperative Institutions

University of Wisconsin–Madison

Institute of Electrical and Electronics Engineers

University of Wisconsin System

University of California, Berkeley

University of California System

Washington University in St. Louis

Columbia University

University of California, Irvine

Irvine University

Engineering Systems (United States)

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Research Field

Improvement of Power System Transient Stability Using Optimal Control: Bang-Bang Control of Reactance

IEEE Transactions on Power Apparatus and Systems (1970)

N. Ratmarao D.K. Reitan

The problem of restoring a power system to its initial steady state in minimum time after a transient disturbance is identified as a minimum time problem in optimal control theory. The optimal control obtained to achieve this objective, by use of Pontryagin's maximum principle, is bang-bang control of line reactance. The implementation of this scheme on a simple power system model is shown, along with numerical results.

Reactance

Transient (computer programming)

Bang–bang control

Maximum principle

Pontryagin's minimum principle

10.1109/tpas.1970.292661

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Citations (75)

Parallel Operation of AC and DC Power Transmission

IEEE Transactions on Power Apparatus and Systems (1965)

H. A. Peterson D.K. Reitan A.G. Phadke

A preliminary account has already been given of the EHV composite ac-dc study initiated last year at the University of Wisconsin [1]. This paper presents additional results obtained in the study of parallel EHV ac-dc power transmission in a basic 2-machine equivalent system. The consequences of 3-phase faults on inverter commutation are evaluated, and circumstances leading to inverter commutation failure (shoot-through) are made clear for various conditions of initial loadings and faulting. The consequences of inverter shoot-through onsystem stability are also evaluated for the 2-machine case. The characteristics of the control arrangement for a dc line are expected to be of special significance in determining the final overall performance of composite ac-dc systems.

Commutation

Transmission system

Power transmission

10.1109/tpas.1965.4766103

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Citations (12)

Calculation of the Electrical Capacitance of a Cube

Journal of Applied Physics (1951)

D.K. Reitan Thomas James Higgins

The basic theory of calculation of the capacitance of a given geometrical configuration by the use of subareas is advanced and applied to solve the long-standing problem of the accurate evaluation of the capacitance C of a cube of side a. The best previously published determination is 0.62211a<C<0.71055a. The value obtained of C≈0.655a esu is both a lower limit and very close to the exact value.

Cube (algebra)

Value (mathematics)

10.1063/1.1699929

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Citations (85)

Conversion of transient stability problems to equivalent systems employing an infinite bus

Proceedings of the IEEE (1981)

Kenneth Geisler D.K. Reitan

The classical two machine system conversion to an equivalent system of one finite machine and an infinite bus has been used widely in calculation of swing curves and critical clearing angles. This letter describes direct calculation of equivalent-system swing curves extended to the general (m - 1)-machine system and one infinite bus.

Transient (computer programming)

10.1109/proc.1981.12061

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Citations (0)

Superflywheel energy storage and nonsynchronous AC/DC/AC electric transmission supplements power system operation

Proceedings of the IEEE (1976)

D.K. Reitan M. Bahari-Kashani

This letter proposes that the high-capacity kinetic energy storage afforded by present superflywheels can be combined with an ac/dc/ac power-electronic converter system to provide unique stable economic energy transfer as needed from the variable-speed storage unit to the fixed-frequency utility grid.

Transmission system

10.1109/proc.1976.10368

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Citations (1)

Wind-powered asynchronous AC/DC/AC converter system

D.K. Reitan

Two asynchronous ac/dc/ac systems are modelled that utilize wind power to drive a variable or constant hertz alternator. The first system employs a high power 60-hertz inverter tie to the large backup supply of the power company to either supplement them from wind energy, storage, or from a combination of both at a preset desired current; rectifier and inverter are identical and operate in either mode depending on the silicon control rectifier firing angle. The second system employs the same rectification but from a 60-hertz alternator arrangement; it provides mainly dc output, some sinusoidal 60-hertz from the wind bus and some high harmonic content 60-hertz from an 800-watt inverter.

Rectifier (neural networks)

Alternator

Alternating current

Source

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Citations (1)

A new method using the bus-impedance matrix model for short-circuit calculations

Proceedings of the IEEE (1980)

D.K. Reitan

The bus-impedance matrix is a familiar tool in short-circuit calculations in power networks. This letter offers a new method of employing this Z bus matrix and shows a numerical sample case. The method has tutorial significance and is applicable to the usual types of short circuits including simultaneous faults.

Impedance parameters

Matrix (chemical analysis)

Sample (material)

10.1109/proc.1980.11787

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Citations (8)

A Solid-State Synchronous Switch for Use in Transient and Modeling Studies

IEEE Transactions on Instrumentation and Measurement (1967)

Arkapravo Bhaumik D.K. Reitan A.G. Phadke

This paper describes a new synchronous switch employing solid-state electronics, that extends the usefulness of the CRO in viewing transient phenomena in electrical circuits by means of a repetitive trace on the CRO. This device is particularly useful in normal research projects and has a unique place in repetitive and "one-time" switching in power system models such as the conventional transient analyzer and the newer EHV simulators.

Transient (computer programming)

Transient analysis

Power Electronics

Transient state

TRACE (psycholinguistics)

10.1109/tim.1967.4313589

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Citations (2)

Optimal control of transients in a power system

Proceedings of the IEEE (1969)

D.K. Reitan N. RamaRao

This letter investigates optimal control of transients in a nonlinear power system by means of the new approach of bang-bang control of reactance. The generality and utility of this control process are discussed and computational results are presented for a specific case.

Reactance

Generality

Bang–bang control

10.1109/proc.1969.7300

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Citations (12)

A synchronous switch for use with the cathode ray oscillograph

Electrical Engineering (1959)

D.K. Reitan

A description of a switch that extends the range of usefulness of the cathode ray oscillograph (CRO) in viewing transient phenomena in electrical circuits by means of a repetitive trace on the CRO.

Oscillograph

Transient (computer programming)

Cathode ray tube

Electrical equipment

TRACE (psycholinguistics)

10.1109/ee.1959.6445799

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Citations (1)