Journal ArticleDOI
Step-by-Step Formation of Bus Admittance Matrix
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An algorithm has been developed to form the bus admittance matrix Ybu, by forming the network through a step-by- step addition of a line or a passive element to the system, taking into account the mutual coupling between the elements.Abstract:
An algorithm has been developed to form the bus admittance matrix Ybu,, by forming the network through a step-by- step addition of a line or a passive element to the system, taking into account the mutual coupling between the elements. Two sets of formulas have been derived for the addition of a tree branch and for the addition of a link. This method eliminates the formation of incidence matrices and does not require singular or nonsingular transformations. This algorithm is very convenient for calculation in digital computers.read more
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Formation of Y-Node Using the Primitive Y-Node Concept
TL;DR: A very efficient and intuitively pleasing algorithm for the formation of nodal admittance matrices is presented, which is basea on the concept of "primitive Ynode." matrices.
Journal ArticleDOI
Design of an On-Chip Superconducting Microwave Circulator with Octave Bandwidth
Benjamin Chapman,Benjamin Chapman,Eric I. Rosenthal,Eric I. Rosenthal,Konrad Lehnert,Konrad Lehnert +5 more
TL;DR: This design improves on the bandwidth and power-handling of previous superconducting circulators by over a factor of 50, making it ideal for integration with broadband quantum limited amplifiers.
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A Passivity Interpretation of Energy-Based Forced Oscillation Source Location Methods
TL;DR: In this article, the authors developed a systematic framework for analyzing how low frequency forced oscillations propagate in electric power systems and showed how to mathematically justify the dissipating energy flow (DEF) source location technique.
Journal ArticleDOI
An Indefinite Admittance Network Description for Fault Computation
TL;DR: In this paper, an algorithm for constructing the admittance matrix of a power system is given which is based upon the concept of an indefinite admittance matrices, and the application of this algorithm to a power systems with mutually coupled elements is discussed.
Journal Article
Design of an on-chip superconducting microwave circulator with octave bandwidth
Benjamin Chapman,Benjamin Chapman,Eric I. Rosenthal,Eric I. Rosenthal,Konrad Lehnert,Konrad Lehnert +5 more
TL;DR: In this paper, an on-chip circulator that combines low-loss circulation with instantaneous bandwidth an octave wide was proposed to enable the multiplexed readout of hundreds of qubits.
References
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Journal ArticleDOI
Digital calculation of network impedances
TL;DR: In this paper, the operation of an electrical network may be defined by means of driving-point and transfer impedances, which are defined as the ratio of an applied potential difference to the resultant current at these terminals, all terminals being terminated in any specified manner.
Journal ArticleDOI
Digital Computation of Driving Point and Transfer Impedances
H. W. Hale,J. B. Ward +1 more
Journal ArticleDOI
Modification of the bus impedance matrix for system changes involving mutual couplings
D.K. Reitan,K.C. Kruempel +1 more
TL;DR: In this paper, a direct method for modification of the bus impedance matrix using a well-known building algorithm is presented, and the simplicity and generality of the method are demonstrated in two numerical examples.
Journal Article
Orthogonal Networks
TL;DR: The structure of the network laws of all variables in the orthogonal networks is derived and simplifications of the conventional mesh and open-path networks are presented.