...Shirin Hassanzadeh Darani; Payam Rabbanifar; Mahmood Hosseini Aliabadi; Hamid Radmanesh Purpose The purpose of this paper is to present a new system frequency response model with participation of wind-hydro-thermal units to overcome frequency deviations. Design/methodology/approach...

...Igor Korotyeyev Purpose The purpose of this paper is to introduce a method for the analysis of steady-state processes in periodically time varying circuits. The method is based on a new definition of frequency responses for periodic time-varying circuits. Design/methodology/approach Processes...

... on the conductor geometry and on the truncation types. Eddy current Homogenization Continued fraction Frequency response Orthogonal polynomials Recent progress in semiconductor devices increases the switching frequency for power control. This causes a very small skin depth for the eddy-current (EC...

..., reduced order approach is used in the control system design. This study applies the modal decomposition method and the modal truncation method, thus retaining the lower order bending modes. The obtained numerical results are compared with the measured open loop frequency responses and the existing...

... poles (P=14 and V=2) and 90 model coefficients. The original frequency response is calculated for several values of λ (|λ|<0.2). As in Li et al. (2008)  λ represents the fabrication variation. The result is compared to the corresponding response from...

... systems are often not known. For their identification, a method based on the frequency response calculation utilizing the Welch method is now presented. The main focus of the work is directed to the measurement of the frequency response by exciting the system with pseudo‐random binary signals...

... either of the components of Z_n to (∞. A finite value for both components can be used to simulate resistively‐ or inductively‐earthed neutrals. As mentioned earlier, the aim is to find the frequency response of the transfer admittance defined as Y_transfer...

... of the basis functions, in conjunction with the linearized iteration, removes to a large extent the ill conditioning of the problem for wide frequency intervals. © Emerald Group Publishing Limited 2007 Electromagnetic fields Frequency response Identification Modelling There are quite...