The aim of this paper is to investigate a novel approach for output feedback damping controller design of the static synchronous compensator (STATCOM) in order to enhance the damping of power system low frequency oscillations (LFO). The design of output feedback controller is considered as an optimization problem according to the time domain-based objective function solved by a honey bee mating...

We developed a new reaction simulator, "LUMMOX." It is an intermolecular interaction analyzer based on the theories of paired interacting orbitals (PIOs) and localized frontier orbitals (LFOs) that have been developed by Fujimoto et al. (Fukui, K.; Koga, N.; Fujimoto, H. J Am Chem Soc 1981, 103, 196; Fujimoto, H.; Koga, N.; Fukui, K. J Am Chem Soc 1981, 103, 7452; Fujimoto, H.; Satoh, S. J Phys...

With the gradual increase of wind power penetration in system, impact farm on system stability is becoming more significant. This study designs stabilizer (PSS) based model reference adaptive control (MRAC) method and virtual impedance (VI) strategy. Then, active difference doubly fed induction generator (DFIG) selected as input signal MRAC-PSS-VI. The small-signal with DFIG enhanced by install...

Fukuda, K., S. Saito, A. Tamura and T. Tokuyama, Bounding the number of k-faces in arrangements of hyperplanes, Discrete Applied Mathematics 31 (1991) 151-165. We study certain structural problems of arrangements of hyperplanes in d-dimensional Euclidean space. Of special interest are nontrivial relations satisfied by the f-vector f = Lfo, fi, . , fd) of an arrangement, where fk denotes the num...

Native Americans are disproportionately affected by the criminal legal system, yet comparative analyses of outcomes and experiences among racial ethnic groups rarely center Americans. This multimethod study examines how monetary sanctions affecting American populations in Minnesota. Drawing on administrative court data qualitative fieldwork, we find that subject to largest overall financial obl...

The low-frequency oscillations (LFOs) inherent in power systems will be impacted by the increasing penetration of renewable energy sources (RESs). This paper investigates impact virtual synchronous machine (VSM) based RESs on LFOs systems. A detailed two-machine test-bed has been developed to analyze which exists when VSMs replace generators. characteristics LFO modes, and dominant states have ...

the aim of this paper is to investigate a novel approach for output feedback damping controller design ofstatcom in order to enhance the damping of power system low frequency oscillations (lfo). the design ofoutput feedback controller is considered as an optimization problem according with the time domain-basedobjective function which is solved by a honey bee mating optimization algorithm (hbmo...

In recent decades, various types of control techniques have been proposed for use in power systems. Among them, the a proportional–integral–derivative (PID) controller is widely recognized as an effective technique. The generalized type this fractional-order PID (FOPID) controller. This provides wider range stability area due to fractional orders integrals and derivatives. These controllers sig...