With the recent trend towards deregulating power systems around the world, transfer capability computation emerges as the key issue to a smoothly running power market with multiple transactions. Total transfer Capability (TTC) is the basic measure for evaluating Available transfer capability (ATC). This paper presents the calculation of TTC through an optimal power flow approach. The objective ...

This paper presents the concept of simultaneous ac-dc power transmission. Long extra high voltage (EHV) ac lines cannot be loaded to their thermal limits due to this instability occurs in the power system. It is difficult to load long extra high voltage (EHV) ac lines to their thermal limits as a sufficient margin is kept against transient instability. With the model proposed in this thesis, it...

In AC/DC hybrid micro grid system (HMGS) power converters are always tested for is performance in distribution, its ability to provide accurate sharing, transient stability and load dynamics. The existing control methods either complex or limited achieve optimal flow. This paper proposes a modified decentralized droop scheme interlinking converter (ILC) connected interconnected AC DC grids. A t...

objective: the current study was undertaken to examine the bactericide effects of atmospheric plasma produced by flat and comb electrodes on e.coli. materials and methods: dc (20 w) and ac (500 w) power supplies, flat and comb electrodes, insulator and oxygen gas were used to produce atmospheric plasma. bactericide effects of the atmospheric plasma were studied on e.coli on sterilized plate pla...

One of the most critical operations aspects is power management strategies for hybrid AC/DC microgrids. This work presented in AC–DC microgrids with a droop control strategy. At first, photovoltaic, Wind, and battery are used as sources, which supply uncertainties. The AC DC controlled by an Adaptive neuro-fuzzy inference system (ANFIS) controller Proportional Integral Derivative (PID) controll...

This paper investigates how free cash flow (FCF) is associated with agency costs (AC), and how FCF and AC influence firm performance. The research purpose is therefore threefold. Specifically, the study is to explore the impact of FCF on AC, to re-examine the free cash flow hypothesis, and to test the agency theory based on the empirical data from Taiwan publicly-listed companies. The study use...

Voltage control for AC loads can be performed by controlling phase and cycles of AC voltages reaching load end. Cycle control tends to be more beneficial, as it reduces the amount of harmonic frequency in the circuit compared to phase control circuit. When a wave is passed in cycle control circuit, then either an entire half cycle or a complete full cycle is passed, hence eliminating the sharp ...

The present paper is focused on short-term prediction of air-conditioning (AC) load of residential buildings using the data obtained from a conventional smart meter. The AC load, at each time step, is separated from smart meter’s aggregate consumption through energy disaggregation methodology. The obtained air-conditioning load and the corresponding historical weather data are then employed as ...

ENHANCEMENT OF POWER SYSTEM STABILITY BY SIMULTANEOUS AC-DC POWER TRANSMISSION Dr. Sushil Kumar Principal Pragati college of Engg. & Management,Raipur [email protected] Abstract It is difficult to load extra high voltage (EHV) ac lines to their thermal limits as a sufficient margin is kept against transient instability.This paper proposed a model in which it will be possible to load these ...

Nowadays, microgrids (MGs) play a crucial role in modern power systems due to possibility of integrating renewable energies into grid-connected or islanded systems. The Load Frequency Control (LFC) is an issue paramount importance ensure MGs reliable and safe operation. Specifically, AC MGs, primary frequency control each energy source can be guaranteed order integrate other sources. This paper...