Search

This paper describes a small scale energy transfer by using magnetic coil made ​​with enamel coil, which is installed on the transceiver side and function generator and RF power amplifier are installed as source to generated signal, and on the receiving side is using an enamel coil materials as antenna. In this experiment obtained energy as it travels from the transceiver can be received at the receiver side without any media or cable, the principle of electromagnetic fields used in this experiment. Number of coil inductive coupling has been compare. Number of turn 4, efficiency 91 % at 0 cm with 4.55 volt and the lower efficiency 70% at 5 cm with 3.1 volt. And number of turn 8, efficiency 97.8% at 0 cm with 4.89 volt and the lower efficiency 70% at 5 cm with 3.50 volt

Power system stability is the ability of an electric power system unit, for giving operating conditions beginning to recover operating state of equilibrium after being subjected to a physical interference. Power system stability has been recognized as an important problem for safe operation of system unit. Stability of power system is similar to the stability of any dynamic system, and has basic mathematical. Concepts from the mathematics and theoretical stability control are first revised to provide background information related to stability of dynamic system generally and establish a connection theoretical. This paper presents to improve of dynamic power system stability using frequency response as tuning of system stabilizer. It is started by electrical power systems mathematic modeling in state variable equation then set the expertise function of frequency response as tuning of system stabilizer. The plant controlled by function of frequency response is tuned to left half plane (LHP) as system stabilizer which their input from the rotor speed. When the system occur fault, the rotor speed should be synchronized, for this case one electrical controller is needed to make sure the system is stable.

In this paper, we have developed transmitter, receiver and 2 structure magnetic resonant couplings. Both of the Transmitter and Receiver couplings are made of copper tubing. Transmitter and Receiver circuits were build by using Multisim software. Transmitter in put by DC source 12 Volt, 0.5 Ampere, with 50 cm Air gap wireless power transfer can reach efficiency 25.2 % with DC 3.02 Volt, 50.01 mA, at Frequency 164.76 kHz.