The high-frequency signal injection-type maximum torque per ampere (MTPA) algorithm is usually employed to control the operation of interior permanent magnet synchronous motors (IPMSMs). MTPA exhibits good dynamic performance and anti-interference ability. However, due injection a current signal, problems such as ripple additional loss are encountered. Therefore, in this paper, virtual (VSIC) m...

Use of high frequency ripple control signals for load control purposes has existed for many years. Although the level of the injected signal at the zone substation is generally small, amplification can occur when the network resonant frequency is close to the injected ripple signal frequency. Ripple signal level at the injection point is generally 5 – 7V in magnitude with reference to public lo...

The research presented in this thesis is on the application of the injection-locked oscillator technique to microwave balanced oscillators. The balanced oscillator design is primarily analysed using the extended resonance technique. A transmission line is connected between the two active devices, so that the active device resonate each other. The electrical length of the transmission line is al...

This paper presents an ultra-wideband injection-locked frequency divider (ILFD) design which is applicable to a multi-applications system. A transformer-based multi-order resonator utilized in the ILFD attain flat phase response. The passive injection-boosted technique proposed increase injection signal amplitude and thus widen locking range. With resonator, demonstrates measured range of 50GHz...

The test signal method can be used to measure and model inductance parameters (self and mutual) of a very small interconnect especially in highdensity IC’s by using a test signal (of small known amplitude and frequency) and a D.C. signal along with a Differential circuit. Other measurement techniques such as LCZ and TDR for measuring inductance parameters are faced with limitations of L values ...

in this paper some new applications of empirical mode decomposition (emd) and hilbert spectrum in seismic ground-roll attenuation, random noise attenuation and spectral decomposition are introduced. hilbert spectrum is a time-frequency representation for hilbert-huang transform which is obtained by combination of instantaneous frequency (if) concept and intrinsic mode function of empirical mode...