A novel switched-capacitor-based cascaded multilevel inverter is proposed in this paper, which is constructed by a switched-capacitor frontend and H-Bridge backend. Through the conversion of series and parallel connections, the switched capacitor frontend increases the number of voltage levels. The output harmonics and the component counter can be significantly reduced by the increasing number ...

A microbial electrolysis cell (MEC) was powered by a capacitor based energy storage circuit using energy from a microbial fuel cell (MFC) to increase MEC hydrogen production rates compared to that possible by the MFC alone. To prevent voltage reversal, MFCs charged the capacitors in a parallel configuration, and then the capacitors were discharged in series to boost the voltage that was used to...

Plasma diagnostics were carried out in a theta-pinch device to investigate the applicability for plasma– material interaction under fusion-like conditions. A series of triple probe diagnostics show that the plasma is sustained for approximately 80 ls at each pulse, with 3.0 (10) m 3 plasma density and up to 40 eV electron temperature when a 32 lF main capacitor is discharged at 20 kV. In order ...

This paper presents a novel study for SSR mitigating in the wind power systems based on DFIG using GCSC (Gate controlled series capacitor). The GCSC is composed of three pairs of anti-parallel GTO Thyristors (Gate Turnoff) connected in parallel with a fixed capacitor. The GCSC is applied to reduce inrush current in capacitor compensator during the transient operation by executing a proper firin...

A novel high step-up DC-DC converter with coupled-inductor and switched-capacitor techniques is proposed in this paper. The capacitors are charged in parallel and are discharged in series by the coupled inductor, stacking on the output capacitor. Thus, the proposed converter can achieve high step-up voltage gain with appropriate duty ratio. Besides, the voltage spike on the main switch can be c...

This paper addresses the problem of fault detection and isolation in railway track circuits. A track circuit can be considered as a large-scale system composed of a series of trimming capacitors located between a transmitter and a receiver. A defective capacitor affects not only its own inspection data (short circuit current) but also the measurements related to all capacitors located downstrea...

The protection of series compensated lines, in particular with capacitors located at the end of the line, present many difficulties. The satisfactory setting of line and capacitor protections requires time domain simulations including the protection model. In most complicated cases, the connection of the real protections to digital or analogical simulators becomes necessary. Using this approach...

This paper describes a set of results of detecting nonlinear phenomena appearing in a turbine generator power system with series-capacitor compensation. The analysis was based on the Floquet theory as well as t h e Hopf Bifurcation theorem. After t he first Hopf bifurcation, t he stable limit cycle bifurcates t o a stable torus and a n unstable limit cycle which connects to a stable limit cycle...

The equivalent series inductance (ESL) of the DC link capacitor and associated bus structure connecting to the switch module has important implications for optimization of electric vehicle inverters. In many cases, additional snubber (bypass) capacitors can be eliminated for sufficiently low ESL, thus reducing cost, weight and volume. This paper presents ESL measurements for realistic capacitor...

This paper presents a series hybrid wireless charging system with an active adjustable circuitry offering constant current and voltage output characteristics. The consists of the inductor–capacitor–capacitor (LCC) series-series (SS) networks are used for improving pad misalignment tolerance. An switch is employed to provide CC CV different battery stages. To demonstrate performance proposed met...