We consider uplink power control in wireless communication when a large number of users compete over the channel resources. The CDMA protocol, as supporting technology 3G networks accommodating signal from different sources code domain, represents orthogonal multiple access (OMA) techniques. With development 5G networks, non-orthogonal (NOMA) is introduced to improve efficiency allocation. Our ...

In this paper a novel modulated power filter compensator (MPFC) is used for power quality improvement on transmission side for the smart grid stabilization and efficient utilization. The MPFC is controlled by a novel tri-loop dynamic error driven inter coupled fuzzy controller. The Fuzzy logic controller based on fuzzy logic provides a means of converting a linguistic control strategy based on ...

The methodology of discrete-event systems (DESs) and supervisory control is applied to a line-restoration problem, aiming to increase the steady-state security level of a power network during restoration. An example using the IEEE 14-bus system serves to demonstrate the potential of the DES formulation in the control of power networks, and to introduce the basic tools and techniques that this f...

Modem process control systems often employ accurate position or speed controlled PWM motors, which require feedback data for the drive control loop. Current methods require an independently shielded cable for feedback data transmission. This is due to the fact that high-voltage PWM signals could easily interfere with the feedback signals, which are typically one or more orders of magnitude smal...

Distributed flexible AC- transmission system (D-FACTS) is a recently advanced FACTS device with high flexibility and smaller size. The DPFC can control power flow in transmission lines, regulate bus voltages and it can also enhance stability margin in power grids. Adaptive-neural network-based fuzzy inference system (ANFIS) combines features of artificial neural network and fuzzy controller. Th...

In this paper, an understanding of reactive power associated with power transmission networks is developed. To make transmission networks operate within desired voltage limits, methods of making up or taking away reactive power— hereafter called reactive-power control—are discussed. Before proceeding further, however, a thorough understanding of the reactive power in ac systems is necessary. Th...