scholarly journals Influence of SDBD plasma aerodynamic actuation on flow control by AC power supply and AC-DC power supply

Author(s):  
Xu Hu ◽  
Chao Gao ◽  
Jiangnan Hao
2017 ◽  
Vol 107 (09) ◽  
pp. 603-609
Author(s):  
S. Weckmann ◽  
D. Schaab ◽  
T. Kuhlmann ◽  
A. Sauer

Im Zuge einer wachsenden Volatilität in der Energieversorgung stehen Industrieunternehmen zunehmend vor der Herausforderung, sich flexibel dem Energieangebot anzupassen. Ein neuer Ansatz für eine industrielle Energieversorgung, die den zukünftigen Anforderungen der industriellen Produktion gerecht wird, ist die Umstellung der klassischen Wechselspannungsversorgung (AC) auf eine Gleichspannungsversorgung (DC). Eine auf diese Weise mit Energie versorgte Produktion bietet zahlreiche Vorteile. Der Einsatz eines intelligenten Netzmanagements ist der „Schlüssel“, um flexibel und robust auf schwankende Netzqualität sowie Energieangebote zu reagieren.   Due to an increasing volatility in the energy supply, industrial companies are faced with the challenge of flexibly adapting their energy consumption to the energy supply. A new approach to an industrial power grid, that meets the future requirements of industrial production, is the conversion of the classic AC power supply to a DC power supply. A DC power supply provides numerous advantages for an industrial plant. Intelligent network management is the key to react flexibly and robustly to fluctuating power quality and energy supply.


Author(s):  
Augustinus Sujono ◽  
Feri Adriyanto ◽  
Hari Maghfiroh ◽  
Joko Slamet Saputro ◽  
Agus Ramelan

<p class="Abstract">Variable voltage DC power supply that has wide range of power, lightweight and inexpensive is quite difficult to obtain. This research designs and tests a DC power supply without a transformer using switching technology that utilizes TRIAC. The 220 Volt AC power source is converted to DC electricity by the method of cutting off some AC waves signal, using TRIAC, and then rectifying it with diodes and filters. DIAC functions as a trigger TRIAC at the specified time, by turning the variable resistor. The test results show that the output DC power voltage can be adjusted from 5 Volts to 75 Volts by adjusting the DIAC resistance and the load resistance. The results of the series image characteristics are given 2-dimensional and 3-dimensional graphics.<em></em></p>


2001 ◽  
Vol 37 (9) ◽  
pp. 597
Author(s):  
H.C. Chiu ◽  
S.C. Yang ◽  
F.T. Chien ◽  
Y.J. Chan

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