This paper presents the designing of a power quality compensator to solve the power quality problem of negative-sequence and harmonic currents in high-speed railway traction systems. The proposed power quality compensator is constituted by railway static power conditioner (RPC), two thyristor-controlled reactors and two thyristor-controlled 3filters. The RPC contains two converters which are co...

To develop the advanced and rich life, and the also economy and social activity continuously, various types of energy are necessary. At the same time, to protect the global environment and to prevent the depletion of natural resources, the effective and moreover efficient use of energy is becoming important. Electric power is one of the most important forms of energy for our life and society. T...

ABSTRACT Power Quality is one of the primary concerns of the utilities, since lack of quality in power may cause malfunctions, instability, short lifetime and so on. The efficiency and sustainability of a power system is highly dependent on the maintenance of good quality of power supply. Conventional Methods have been used to analyze the transient effects but found to be high resource consumin...

Supply voltage scalable system design for low power is investigated using self-timed circuits in this paper. Two architectures are proposed to achieve supply voltage scalability, for preserved quality and energy-quality tradeoff respectively, In the fist architecture, the supplyvoltage automatically tracks the input data rate of the data path so that the supply-voltage can be kept as small as p...

Due to development of the demand increasing of energy around the world and the decline of traditional energy sources in electricity generation the development orientation of power generation has been toward renewable energies. The use of these unfailing and renewable resources requires study substrates and new infrastructure in the transmission and distribution networks. Due to the power instab...

Bluetooth is a new short-range radio technology to form a small wireless system. In most of the current Bluetooth products, the master polls the slaves in a Round Robin manner and it may waste a significant amount of power. We propose an adaptive power conserving scheme to address this problem. The proposed solution schedules each flow based on its predictive rate and achieves power optimizatio...