Power electronic converters can operate the stator of synchronous or asynchronous machines. In other applications, the power converter can be connected to the rotor of a wound rotor induction machine. In the first case, the converter handles the overall power of the machine and it operates in a...
In DFIG-based wind energy system, the rotor-side converter (RSC) controls the active and reactive power flow between the stator and grid. To achieve the desired result, the operation of these converters control is by a cascaded control loop, as shown in Figure 11 and Figure 12 [85]. ...
The topology explored in this work uses a five-phase induction motor supplied from a two-level inverter and controlled with a predictive control strategy, to promote the reliability, efficiency and performance characteristics of the propulsion drive (Fig. 2). Figure 2. Schematic diagram of a five...
as shown inFig. 10.1. Each PE interface includes a power converter that consists of power semiconductor switches and primary electronic elements (resistors, capacitors, inductors, transformers, diodes, etc.), and a control unit that manages the flow of power and conversion of voltages and currents...
Fast simulation of Switched Mode Power Supplies without convergence problems Special fast switch models for a Diode, SCR, GTO and semiconductor switches Special block-diagram components for Power Electronics and Drive simulations such as DC-motor, induction machine, RMS, power-factor, harmonics and mec...
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If additional sources of electrical power are connected to the far end of the transmission line, it is possible for the distance relay to sense reverse power flow. Consider a case where a short-circuit fault occurs on the generator bus shown in this single-line diagram: A fault to the left...
Figure 4. Diagram of the backward calculations modelled in a Simulink® environment. 4. Energy Management Strategies The EMS block, consisting of a rule-based (RB) combined with an optimization-based (OB) approach, is the core of the power sharing control subsystem toward reaching the desired...
The DC current flow is unidirectional as determined by the DC-side equilibrium voltage of the two converters. The valve requires reactive power generation using the shunt connected filter shown in the figure. The new HVDC system based on VSC is shown at the bottom of Fig. 16.2. In this ...
Forecasting energy flows on transmission and distribution networks through “simple” load flow analyses is being challenged by the rapid increase in solar and wind power, along with the closure of conventional power plants and changing load usage patterns (e.g., from electric vehicles). All of ...