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In this paper, a three-phase 12/8 switched reluctance generator is taken as the study object and a control system based on that generator is designed. In that system, the digital signal controller applied for is dsPIC30F6010, and power converter circuit adopt asymmetric half-bridge topology, and the main switches use power MOSFET. The paper analyzes the process of power generation and the basic structure...
This paper demonstrates a new approach to model the impact of thermal effects on the efficiency of integrated voltage regulators (IVRs) by combining analytical efficiency evaluations with coupled electrical and thermal simulations. An application of the approach shows that a system-in-package solution avoids thermal problems typically observed in other IVR designs. While the evaluation in this paper...
Integrated voltage regulators (IVRs) are one of the main trends in power delivery networks (PDNs) for electronic systems. A major challenge in the IVR design is to achieve sufficient integration / minimization of the required passive components of the IVR while still maintaining high power efficiency. This paper demonstrates that a buck converter type IVR designed with package embedded magnetic core...
This paper presents a new control method to regulate various parameters such as output voltage and power of the inverters interfaced with distributed generations (DGs) in the proposed microgrid system integrated with a distribution network device. Model Predictive Control (MPC) is used to control the inverters of the DGs using state-space model of the inverters in the proposed system. The distribution...
This paper proposes a new strategy to achieve voltage regulation in distributed power systems in the presence of solar energy sources and battery storage systems. The goal is to find the minimum size of battery storage and its corresponding location in the network based on the size and place of the integrated solar generation. The proposed method formulates the problem by employing the network impedance...
In this paper, a LCC series-parallel resonant converter is designed for the electromagnetic launch system, in which, the power supply charges for the energy-storage capacitor in the Pulse Forming Unit. At first, the operational principles of the LCC resonant topology operating in Discontinuous-Current-Mode are analized and the detailed expressions describing the resonant topology are derived. In order...
The main objective of the WEST project is to test the actively cooled tungsten plasma facing components under high flux conditions and to provide relevant information to ITER [1]. In this framework, two new power supplies will be installed in Tore Supra in order to feed the new upper and lower divertor coils. These new coils are installed inside the vacuum vessel to modify the magnetic configuration...
This paper presents a new control method to regulate various parameters such as voltage, current and power of the inverter interfaced with Distributed Generation (DG) in a microgrid. Model Predictive Control (MPC) is used to control the inverter of the DG using a state-space model of the inverter based microgrid. The operation of the microgrid is tested under grid-connected and stand-alone conditions...
Battery energy storage system (BESS) is the key element to integrate a distributed generation (DG) unit into a microgrid. This paper presents a microgrid consisting of singlephase photovoltaic (PV) arrays which function as the primary DG units and a BESS to supplement the intermittent PV power generation and demand variations in the microgrid. An energy management system is proposed to coordinate...
This paper presents the advanced control strategy and experimental study of a clean hybrid power system combining proton exchange membrane fuel cell (PEMFC), as the main power source, and ultra-capacitor (UC), as the energy storage unit.
In this paper, a voltage control strategy of a large wind farms integrated region is proposed. The strategy regulates the network voltage by coordinating the reactive power among wind farms. When the voltage control point of the region is selected, then the steady state voltage without disturbance is selected as the control objective. Firstly, the reactive power/loss sensitivity is used to choose...
This paper presents a dynamical control of fuel cell and battery hybrid system to supply a suddenly changing load. Because of the voltage drop when PEM fuel cell current increases, in this hybrid system, the fuel cell is used to supply the rated power to the load, a Lithium battery will supply peak power that the load demands, meanwhile, the fuel cell will charge the battery when the battery voltage...
Autonomous system with DC-AC converter as an interface from the battery source to the inverter load easily suffers from voltage ripples on the DC-bus at the twice load frequency (100 Hz). A fast voltage controller for tightly regulating the DC-bus voltage with the inevitable 100 Hz ripples bears a rapid transient response, however always contaminating battery current with large ripples at 100 Hz,...
This paper presents a wireless power supply system for implantable biomedical devices. Magnitude of the input voltage supplied to the primary power converter is dynamically regulated according to the power demand of the device. The major advantage of such a system is that its average power loss is minimized. Unlike methods implemented at implantable secondary (pick-up) side, the magnitude regulation...
A combined digital and analogue approach is introduced to establish a dynamic active voltage controller (AVC) for controlling an insulated gate bipolar transistor (IGBT), suitable for series connection of devices. In the AVC, the reference voltage dictates the switching trajectory of active voltage controlled IGBTs via a feedback loop. By means of employing adaptive and self-timing control methods...
Feedback control of IGBTs in the active region can be used to regulate the device switching trajectory. This facilitates series connection of devices without the use of external snubber networks. Control must be achieved across the full active region of the IGBT and must balance a number of conflicting system goals including diode recovery. To date, the choice of control parameters has been a largely...
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