The Electronic Power Control

The Power Control deals with routing electric power, and controlling the devices attached to a power line. A number of technologies have evolved for using the power wiring to turn devices attached to the power line on and off, monitoring attached devices, and similar activities. A collective term for one set of technologies is smart buildings. It should be mentioned that unlike within commercial buildings, smart building technologies within peoples homes have been less than an overwhelming success; problems include reliability, cost, questions about how great the need is, and the fact that many smart building tasks such as turning on a lamp at dusk can be performed equally well by simpler, cheaper, and often more reliable, mechanical or electro-mechanical devices. The best known smart building technologies and CEBus and for the commercial Lonworks, DyNet, DSI, DALI and analog systems.Electronic Power Design. is an Electrical Systems Integrator with 20 years of extensive experience in marine drilling, propulsion, power/control systems, mining, petrochemical. steel, paper, plastics, dredging, and solar & winding energy sectors. We provide value-added electrical equipment and services to a variety of industries worldwide with emphasis on total power system integration and automation.For this reason modem airfield lighting LED luminaires contain an electronic power supply to provide the LED modules power requirements, and enable the connection of the LED lighting fixtures into the existing series circuit architecture.
Most electronic circuits require a direct-current (dc) or constant voltage. If ac power is required, an oscillator or a simple transformer is used. Although some dc-to-dc converters are used, most dc power supplies convert the alternating power from the ac main to dc power. These ac-to-dc power supplies are classified according to the type of circuits used to realize the conversion: rectification, filtering, and regulation. Simple battery chargers are examples of power supplies that do not require filtering or regulation.These have some advantages for high-current applications such as battery chargers. Ferroresonant power supplies use nonlinear magnetic properties and a resonant circuit to regulate the output voltage, and they have efficiencies similar to switching power supplies. Power supplies driven by three-, six-, or twelve-phase ac are easier to filter, and they generate much lower harmonic distortion of the current in the ac power system.Johan H. Enslin ([email protected]) received his B.S., M.S., and Ph.D. degrees in electrical and electronics engineering from Rand Afrikaans University, South Africa, in 1981, 1983, and 1988, respectively. He is the Duke Energy Endowed Chair in Smart Grid Technology at Clemson University in North Charleston, South Carolina, and executive director for the energy systems program at the Zucker Family Graduate Education Center. He is also a distinguished visiting professor at the University of Johannesburg, South Africa. He has a combined 36-year career with leadership roles in industry and academia in the United States, Europe, and South Africa. He has worked for more than 90 U.S., European, Asian, and African power utilities, governments, and industries. He has authored and coauthored over 300 technical journal and conference papers and written several chapters in scientific books. He holds more than 25 provisional and final patents and received the 2014 Charlotte Business Journal Energy Leadership Award. He is a registered professional engineer in South Africa, a South African Institute of Electrical Engineers fellow, and a Fellow of the IEEE.