... New Control Strategy for Variable Speed Wind Turbine with DC- DC converters Vladimir Lazarov * , Daniel Roye † , Dimitar Spirov * ... combination with two optimum wind turbines power/torque versus speed characteristics. Two control loops: inner feed forward current control loop and outer voltage control closed loop are applied for ... Combined with appropr...
... high and low wind speeds. Fig.9 : Wind turbine output power without MPPT control method for high wind speed. Fig.10 : Wind turbine output power with MPPT control method for high wind speed. ∆ α ... proposed MPPT control method. Fig.7: Wind turbine output power without MPPT control method for low wind speed. Fig.8: Wind turbine output power with MPP...
... granular sludge with an average diameter of 226 m was observed on day 65. This formation period is much shorter than that employed in our previous study without control strategy for the selection ... already been formed in our previous studies. Based on the preliminary experimental results, we decided the control strategy for the selection of well-settling sludge. Then, we appl...
... symmetrical dc- dc converters operating in the opposite phase angle in order to generate a sinusoidal current waveform feeding to a single-phase grid. For small grid-connected wind turbine systems, ... waveform when the dc voltage is 50V. Fig. 13. Output current waveform when the dc voltage is 100V. Fig. 14. Output current waveform when the dc voltage is 200V. Fig.15. Output cu...
... efforts to prevent and control hepatitis B
and hepatitis C, these diseases remain serious health problems in the United States. Therefore,
the Centers for Disease Control and Prevention (CDC) ...
Efforts are going on to develop a vaccine for hepatitis C, which could substantially
enhance hepatitis C prevention efforts. The committee recognizes the need for a safe, effective,
an...
... people with chronic
diseases, in line with the WHO-developed strategy for strengthening health systems.
Proposed action for Member States
National multisectoral framework for the prevention and control ... multisectoral national policy for
noncommunicable diseases in conformity with the global strategy for the
prevention and control of noncommunicable diseases.
•...
... the promoter of a
C. fusiformis fcp gene has been isolated and tested for
its applicability in C. fusiformis transformations. Prim-
ers were designed based on a C. fusiformis fcp cDNA
sequence ... was ligated with
pCfcp, generating pCfcp-ble. This plasmid was used for
C. fusiformis transformation by microparticle bombard-
ment, yielding typically 36 ± 4 zeocin-resistant trans-
formants...