In 1820, Andre-Marie Ampere identified that the existence of a magnetic field is related to the flow of electricity through a closed conductive contour, while the same year Jean-Baptiste Biot and Félix Savart arrived at an equation that determines the magnetic field strength in the vicinity of...
Basic motor and soft start theory Introduction A solid-state soft start controller or starter controls the starting torque and current of an AC motor electronically. They can be used in almost any application such as: • Commercial—HVAC fans and pumps ...
Keywords: electrical drive control system; operation management; optimal feedforward torque control; optimal reference current computation; transformer-like nonlinear machine model; artificial neural network; synchronous motor; interior permanent magnet synchronous machine; machine learningNotation...
Figure 3 represents the electrical circuit of the buck converter: Figure 3. Buck converter circuit. As mentioned in Figure 3, the circuit has a duty cycle that is obtained from the following equation: 𝐷=𝑇𝑜𝑛𝑇𝑜𝑓𝑓=𝑉𝑂𝑉𝑖𝑛D=TonToff=VOVin (1) in which 𝑇...
The optimal third harmonic amplitude that should be injected into the current for a dual three-phase machine is addressed in [45]. The amplitude depends on the ratio of the third harmonic back-EMF to the fundamental back-EMF. Another proposal of current injection into the machine is explored...
Also, a new non-equilibrium equation of state model for ammonia was developed and included to more accurately model the MK Va data [68]. The MHD modeling provided some interesting insights into planar IPPT operation [7,66,67]. A good match was obtained for the first half-cycle of the ...
The optimal third harmonic amplitude that should be injected into the current for a dual three-phase machine is addressed in [45]. The amplitude depends on the ratio of the third harmonic back-EMF to the fundamental back-EMF. Another proposal of current injection into the machine is explored...
In fact, as seen in Figure 2, the measured fusion cross-section is fitted well by the truncated summation of equation (1) as r 0P(EL /EcL)[{1 4(EL ErL)2 /L2}1 ] [57]. Figure 2. DT Fusion cross section as a function of deuterium energy ...
Introduction The utility of induction motors has risen considerably owing to its integration with power electronic converters, which made variable frequency operation realizable. This, in turn, made the induction motor the workhorse of the industry. Of all the variable frequency control strategies, the...
In addition, CHBMLIs use low switching control schemes, which produces a high level of losses due to the transformer leakage. In the case of extending the number of components in the system, this will lead to a bulky and costly system. However, the CHBMLIs are still the best choice in ...