In the rapidly expanding landscape of Internet of Things (IoT), sensors have emerged as pivotal components, playing a critical role in sensing and data collection. However, this crucial function also renders them susc...
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Reinforcement learning, deep learning, and deep reinforcement learning can effectively acquire action rules for the autonomous motion of objects. However, some researchers have reported that the machine learning proce...
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In the contemporary landscape of convergence between Information technology (IT) and Operational technology (OT), maintaining asset visibility within the Industrial Control Systems (ICS) infrastructure is paramount. Y...
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Multipath interference (MPI) impact is assessed in a C+L+S multiband transmission scenario. For a typical -34 dB/span MPI, transmission reach in the L-band suffers a 20% reach penalty considering the QPSK modulation f...
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Mobile access innovation is experiencing a progressive change. Every mobile generation witnessed fast and huge execution upgrades. These are proportional with the requests of the massive data increasing over the last ...
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It has become a trend to integrate automatic industries via Internet and wireless applications over network. Along with the advancement of technology development, research on wireless applications and remote control h...
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This paper presents the fuzzy modeling approach to the description QV curve of power system for analysis of voltage stability. Voltage instability of power system comes from increasing load rapidly, and causes bus vol...
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ISBN:
(纸本)9789604741748
This paper presents the fuzzy modeling approach to the description QV curve of power system for analysis of voltage stability. Voltage instability of power system comes from increasing load rapidly, and causes bus voltage to drop. When voltage is out of control and it can be voltage collapse. The QV curve can identify voltage stability limit, and it determine robustness of power system. The method of fuzzy modeling has been proven to be well-suited for modeling nonlinear industrial processes described by input-output data. In view of the nonlinear characteristic of the QV curve, the method of fuzzy modeling is employed for representing the curve. The fuzzy system model is basically a collection of fuzzy IF-THEN rules that are combined via fuzzy reasoning for describing the features of a system under study. Based on the Sugeno-type fuzzy model, various models with different numbers of modeling rules are used to describing the QV curve. It is found that such fuzzy model offers both quantitative and qualitative descriptions for the QV curve.
The requirement of high quality electric power supply from utility is a common practice today. Thus, no matter in planning, designing, or system dispatching, it is desired to give un-interrupted electric power to cust...
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ISBN:
(纸本)9789604742820
The requirement of high quality electric power supply from utility is a common practice today. Thus, no matter in planning, designing, or system dispatching, it is desired to give un-interrupted electric power to customers. However, when the loading of a distribution system power feeder is too high or the feeder needs to be maintained, the feeder load should be transferred to other feeder. There are two types of feeder load transferring, interrupted and un-interrupted. The un-interrupted type means that the electric power supplied to customers will not be interrupted during feeder load transferring. However, there are several factors to affect the feeder current magnitude during load transferring, such as transformer impedances, primary side power level, and original loading of the feeder. If the current is too high, the feeder protection system will trip the feeder breakers to shut down the power supply system. A novel approach is presented to reduce the feeder current magnitude during load transferring. The phasor measurement units (PMU) will be used to obtain the synchronous voltage magnitude and phase angle of the transformers, of which feeders are transferred. A power conditioner is installed in the secondary side of the transformer. Then the phase angle values from the PMUs will be sent to the power conditioner and the suitable phase shifting will be used to reduce the phase angle difference between the two transformers. The simulation results show the feeder current magnitude will be greatly reduced during load transferring. The power supply reliability is raised.
This paper presents the design of modal insensitivity for the synchronous generator in a power system using Eigenstructure Assignment. In the proposed design procedure, modal insensitivity of generator is achieved by ...
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ISBN:
(纸本)9789604742332
This paper presents the design of modal insensitivity for the synchronous generator in a power system using Eigenstructure Assignment. In the proposed design procedure, modal insensitivity of generator is achieved by assigning system eigenstructure and only algebraic computations are involved. Model insensitivity means that the concerned system mode shape is insensitive to small variations in the system. From the simulation results of the study in a single-machine-infinite-bus system are certified. It is found that the system damping has been greatly improved. The proposed design has improved on the sensitivity.
Boolean satisfiability (SAT) solvers are used heavily in electronic engineering verification tools for checking satisfiability of Boolean formulas. Most state-of-the-art SAT solvers are based on the DPLL algorithm and...
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