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This article describes the inductive power transfer system for unmanned aircraft vehicles (IPT4UAV) to charge lithium polymer battery. IPT4UAV is fed by a single-phase network. The structure of the system construction, control, air transformer design and the results of experimental research were presented.
This paper proposes a single-bit ADC system based Proportional and Integral (PI) controller to regulate the output voltage of Capacitive Power Transfer (CPT) systems. A simple single-bit ADC system i.e., Single-Bit Modulator (SBM) is considered as an alternative to the commonly used multi-bit ADC systems. Unique features of employing SBM are 1) its ability to convert analog signals into single-bit...
Contactless Capacitive Power Transfer (CPT) is one of the emerging fields in the area of wireless power transfer. The system is fairly analogues to the inductive power transfer system. The CPT systems was primarily used for low power and small distance applications due to the development of unsafe voltages across the capacitive interface. However, the use of new compensation networks have enabled...
Focus is on three operation strategies for a grid-connected three-level neutral-poi n t-clamped quasi impedance source inverter in a single-ph as e application. Each control scheme wa s implemented in the PS CAD/EMTDC simulation tool a n d underwent different tests, which involved some steps in the reference values and in the perturbations applied to the system. A comparison according to their responses...
In this paper a 10 kVA photovoltaic emulator is presented. The system implemented generates photovoltaic V-I characteristic curves to analyse and test maximum power point tracking algorithms of real photovoltaic inverters according to the standard EN50530. The power converter used includes a three-phase ac-dc active rectifier. The power stage selected allows to minimize the harmonic current content...
In the paper a new control method for the five-level cascaded inverter is presented. The proposed control method allows full regulation of energy collection from a particular DC voltage source. Application of the cascaded inverter with the proposed control brings many benefits to the DC/AC energy conversion with several DC sources. These benefits are: reduction of the emission of electromagnetic disturbances,...
Dynamic reactive power demand in inverter stations concerns the stability of transient voltage in multi-infeed high voltage direct current (HVDC) receiving-end grids. In this paper, with PSCAD/EMTDC simulation platform, a doubly fed HVDC model is built by adopting the CIGRE HVDC benchmark system. And the demand rule for dynamic reactive power in HVDC transmission system is studied by using the control...
A new tracking scheme with the three sine parts controlled independently from each other is presented in this paper, by using this scheme, the switching signals of the three phases can be acquired at the same time, it can track any given magnetic flux to control the flux. By comparing the tracking and contrast, the switching state of each phase can be acquired, and combine the switching state of phase...
PM motor drives are widely used for high performance servo applications. However, SPM motor has imperfect sinusoidal flux distribution which causes harmonic current. Dead time of the inverter and current measurement error lead to harmonic current, too. In this paper, the authors propose harmonic current suppression control of PM motor by using repetitive perfect tracking control with PWM-hold model...
The permanent magnet linear synchronous motor (PMLSM) direct thrust control (DTC) systems using space vector modulation (SVM) and sliding mode variable-structure are presented and analyzed. Firstly, simulation results of the classical DTC system and the system based on SVM and predictive PI controller are compared. Both systems based on SVM can keep the fast response characteristics of the conventional...
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