نتایج جستجو برای: thyristor switched capacitors
تعداد نتایج: 30722 فیلتر نتایج به سال:
This article introduces a device for the precise testing of non-linearities inductive voltage dividers and digitizers used in digital impedance bridges. The is based on switched capacitors composed an NP0 dielectric, addition to high-quality microwave relays. discusses issue concerning symmetrization as one main ways achieve high accuracy. Furthermore, temperature-stabilization system presented...
Thyristor controlled reactors are high power switching circuits used for static VAR control and the emerging technology of flexible ac transmission. The static VAR control circuit considered in the paper is a nonlinear periodically operated RLC circuit with a sinusoidal source and ideal thyristors with equidistant firing pulses. This paper describes new instabilities in the circuit in which thy...
Purpose The purpose of this paper is to enhance the line congestion and minimize power loss. Transmission considered most acute trouble during operation system. Therefore, management acts as an effective tool in using available without breaking system hindrances or limitations. Design/methodology/approach Over past few years, determining optimal location size devices have pinched a great deal c...
This article offers a novel boost inverter construction with Nine-level quadruple voltage boosting waveform. The primary drawback of conventional MLI is the need for high DC-DC converter to increase when using renewable energy sources. Consequently, developed method, complete ability, can alleviate that shortcoming by automatically increased incoming voltage. A single DC source, two switching c...
This paper proposes a novel single-phase switched-capacitor-based inverter configuration that in its basic form can generate an 11-level staircase output voltage waveform with sinusoidal current for Resistive-Inductive (R-L) loads. The increased levels, quintuple voltage-boosting factor, and natural voltage-balancing of capacitors are considered the main features proposed configuration. topolog...
There are various static var compensator configurations available and listed in the literature. Their performances evaluated based on their voltage support, dynamic response, losses, cost, additional filter requirement, if any. In this paper, efforts made to improve performance parameter such as rise time, settling peak overshoots. A new topology with an adaptive controller is presented, which ...
In this paper, a bidirectional AC DC converter is analyzed. The converter applies a half bridge thyristor rectifier and a recuperating thyristor bridge instead of a braking resistor. Recuperating mode of the converter is focused in the analysis, and it is shown that the converter exposes two operating modes within the recuperating mode, one characterized by negligible, and the other one charact...
There are several types of dimmers generally available. Those employing triac or thyristor devices operate in a very similar fashion. These are used for resistive, and inductive loads, such as incandescent, cold cathode and low voltage (inductive) lamp sources. Note that not all electronic transformers used for low voltage lamps are suitable for dimming by triac or thyristor dimmers. Specialist...
Congestion management is one of the technical challenges in power system deregulation. This paper presents single objective optimization approach for optimal choice, location and size of Static Var Compensators (SVC) and Thyristor Controlled Series Capacitors (TCSC) in power system to improve branch loading (minimize congestion), improve voltage stability and reduce line losses. Though FACTS co...
We propose an input protection scheme composed of thyristor devices only without using a clamp NMOS device in order to minimize the area consumed by a pad structure in CMOS RF ICs. For this purpose, we suggest low-voltage triggering thyristor protection device structures assuming usage of standard CMOS processes, and attempt an in-depth comparison study with a conventional thyristor protection ...
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