摘要:

AbstractThe method presented in this paper provides a simplified approach to obtain thez‐domain equivalent circuit of an SC active filter by one‐for‐one substitution of each basic SC element with itsz‐domain equivalent admittance, if a specific terminal condition is met. Then, traditional circuit analysis techniques can be used to derive thez‐domain transfer function of the filter. This method makes the analysis and the design of the SC active filter simple and similar to theS‐domain method. Two application example

ISSN:0098-9886    

DOI:10.1002/cta.4490120302

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY

摘要:

AbstractA unified study of the class of adjoint network approaches to power system sensitivity analysis which exploits the Jacobian matrix of the load flow solution is presented. Generalized sensitivity expressions which are easily derived, compactly described and effectively used for calculating first‐order changes and gradients of functions of interest are obtained. These generalized sensitivity expressions are common to all modes of formulating the power flow equations, e.g. polar and Cartesian. the approach exploits a special complex notation and complex matrix manipulations to define the adjoint system and to derive the sensitivity formulae. the approach is applicable to both real and complex function sensitivitie

ISSN:0098-9886    

DOI:10.1002/cta.4490120303

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY

摘要:

AbstractHigh‐order bandpass filter functions are realized by cascading activeRCbiquartic sections. A design procedure is proposed, which leads to an optimized circuit with regard to sensitivity, signal distortion and noise. It is shown that the resulting filters have low sensitivity, similar to that of the multiple‐loop feedback (MF) filter and better noise performance than the shifted‐companion‐form and cascade

ISSN:0098-9886    

DOI:10.1002/cta.4490120304

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY

摘要:

AbstractThis paper is concerned with the conceptual design and realization of matching networks for the continuous transfer of maximum power from a non‐linear source with randomly varying characteristics to a load. Such sources are commonly encountered in the use of photovoltaic arrays or wind energy conversion systems for the production of electric power. Experimental studies as well as computer simulation results verify the validity of the design and point to methods for its practical implementatio

ISSN:0098-9886    

DOI:10.1002/cta.4490120305

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY

摘要:

AbstractIn this paper realizations of low sensitivity narrow BP active filters implementing multiple‐critical‐pole (MCP) approximation methods and coupled filter structures are studied. In the first part of the paper, a synthesis procedure particularly developed for the realization of MCP transfer functions is described. According to that procedure the portion of the MCP transfer function containing multiple poles is realized as a follow‐the‐leader feedback (FLF) network, and the remaining part as a cascade. It is shown that the lower sensitivities of MCP functions in comparison with standard approximating functions (Butterworth, Chebyshev, etc.) can be further decreased by applying the FLF configuration instead of the cascade. the synthesis procedure is straightforward and in some cases it can be performed using identical second‐order BP blocks. the final circuit sensitivities can be optimized according to given filter specifications and a user selected optimization criterion.In the second part of the paper, the MCP transfer functions are combined with the cascaded biquarts (CBQ), the shifted companion form (SCF), and the leap‐frog (LF) structures, and sensitivity analysis is performed. It is shown that applications of the above mentioned structures can improve the filter sensitivites in a way similar to that of the given FLF co

ISSN:0098-9886    

DOI:10.1002/cta.4490120306

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY

摘要:

AbstractLetN, N1, N2andN3be prescribed reciprocal reactance 2n‐ports. Then, under certain mild restrictions, this paper supplies answers to the following two related problems:.P1. Find the necessary and sufficient conditions for the physical extractability ofN1from the front‐end ofN.P2. Given thatN2andN3are individually physically extractable from the back and front‐ends ofN.respectively, find a set of sharp sufficient conditions for their simulations physical extractability fromN.The criteria are formulated in terms of the associated scattering matrices and are reasonably simple to apply. Moreover, they also have a clear‐cut network significance involving transmission zeros. to illustrate their use, a recent result for the design of non‐degenerate double broadband‐matching equalizers6is generalized to a 2n‐port setting in Theorem 2, corollary 2.Lastly, to round out the development, impedance versions of both Theorem 1 and Theorem 2, corollary 2, are presented in Section 2. This restatement is accomplished with the aid of a new Darlington 2n‐port embedding for passive reciprocaln‐ports that is phrased entirely in the language of i

ISSN:0098-9886    

DOI:10.1002/cta.4490120307

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY

ISSN:0098-9886    

DOI:10.1002/cta.4490120308

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY

ISSN:0098-9886    

DOI:10.1002/cta.4490120309

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY

ISSN:0098-9886    

DOI:10.1002/cta.4490120301

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY