Voltage quality

This paper presents the impacts of Electric Vehicle Charging Stations (EVCSs) on voltage and frequency quality in the Microgrid. It addresses security analysis, voltage and frequency quality, as well as issues related to EVCSs. In this paper, modeling and simulation method is utilized to evaluate the impact of Charging Stations (CSs) in Microgrid power systems using PowerWorld software.

13p viwalton 02-07-2024 0 0   Download

Part 2 book "Electric power distribution engineering" includes content: Distribution system voltage regulation, distribution system protection, distribution system reliability, electric power quality, distributed generation and renewable energy, energy storage systems for electric power utility systems, concept of smart grid and its applications.

518p dianmotminh03 17-06-2024 0 0   Download

Part 2 book "Electric power distribution handbook" includes content: Capacitor application, faults, short circuit protection, reliability, voltage sags and momentary interruptions, other power quality issues, lightning protection, grounding and safety, distributed generation.

561p dianmotminh01 20-05-2024 5 3   Download

Part 2 book "Transmission and distribution electrical engineering" includes content: Power transformers, substation and overhead line foundations, overhead line routing, structures, towers and poles, overhead line conductor and technical specifications, testing and commissioning, electromagnetic compatibility, supervisory control and data acquisition, project management, distribution planning, power quality – harmonics in power systems, power quality – voltage disturbances, high voltage direct current transmission, smart grids, fundamentals.

610p dianmotminh00 22-04-2024 7 5   Download

Part 1 book "Power converters AC electrical drives with linear neural networks" includes content: Review of basic concepts - space vector analysis; pulsewidth modulation of voltage source inverters; power quality; dynamic and steady state models of the induction machine; control techniques of induction machine drives.

287p dianmotminh00 22-04-2024 6 3   Download

Part 2 book "Electric power distribution system engineering" includes content: Application of capacitors to distribution systems, distribution system voltage regulation, distribution system protection, distribution system reliability, electric power quality.

464p dianmotminh00 22-04-2024 3 3   Download

This paper presents a method to distinguish transients arising out of isolated capacitor switching, back-toback capacitor switching, prestrike capacitor switching, restrike capacitor switching and voltage magnification.

7p vidoctorstrange 06-05-2023 4 2   Download

This paper presents a method to determine the capacity and location of compensating capacitors to reduce power loss and improve voltage quality in the Microgrid. At each bus location, the compensating capacitor capacity is varied to determine the bus location and capacitor capacity.

9p vibentley 08-09-2022 13 4   Download

Lecture Methods of Electric power systems analysis - Lesson 18: Synthetic electric grids, voltage stability provide students with knowledge about models of electric grids that were not created to represent any actual electric grid; the below image shows the five bus synthetic grid I used as an undergraduate; geographically-based synthetic electric grid;...

54p hanthienngao 15-04-2022 12 1   Download

This work addressed a parameter optimization to simultaneously decrease the root mean square roughness (Rq) as well as the thickness of the white layer (TW) and improve the material removal rate (MRR) for the wire electro-discharge machining (WEDM) of a stainless steel 304 (SS304). The factors considered are the discharge current (C), the gap voltage (VO), the pulse on time (POT), and the wire drum speed (SP). The interpolative radius basic function (RBF) is applied to show the correlation between the varied factors and WEDM performances measured.

17p nguaconbaynhay11 07-04-2021 13 0   Download

Based on the number of previous studies, this study aims to investigate the effects of process parameters of an Electrochemical Machining process which are electrolyte concentration, voltage applied to the machine, feed rate of the electrode and Inter-Electrode Gap between tool and work - piece. Aluminum samples of 25 mm diameter x 25 mm height and 30mm diameter x 25mm height of the tool is made up of copper with a circular cross section with 2 mm internal hole. The design of the system is based on the Taguchi method.

12p trinhthamhodang9 04-12-2020 20 3   Download

Building adaptive control system for sensorless vector control of the SPIM drives based on adaptive control, nonlinear control and intelligent control techniques to improve control quality and practical applicability of the SPIM drives. The common mode voltage reduction algorithms for SPIM drives has also been developed to further improve the quality and performance of the SPIM drive system.

31p gaocaolon6 30-07-2020 16 1   Download

In the wire arc additive manufacturing (WAAM) process, the geometry of single welding beads has significant effects on the stability process and the final quality and shape of manufactured parts. In this paper, the geometry of single welding beads of 308L stainless steel was predicted as functions of process parameters (i.e. welding current I, voltage U, and travel speed v) by using the response surface methodology (RSM). A set of experimental runs was carried out by using the Box-Behnken design method.

13p kequaidan6 11-07-2020 38 2   Download

Using renewable energy sources for providing electricity in remote area is an economical-technical solution and reduces environmental pollution. Tho Chu island, Phu Quoc district, Kien Giang province, is currently supplied by diesel generators, causing environmental pollution and high-power generation costs. This article presents hybrid renewable energy system (HRES) design including diesel generator, photovoltaic system and energy storage system for Tho Chu Island.

10p 12120609 01-06-2020 17 1   Download

THDv is still within the safe limit under 5%, as well as for the THDi is also still within the safe limit of tolerance of 15%. As a result of harmonic disturbances and load imbalances in the building G5 in 2018, the caused losses of power losses that need to be borne by Universitas Muhammadiyah Yogyakarta in the amount of Rp 9,210,133.09.

11p lucastanguyen 28-05-2020 10 0   Download

The present works develops method to prepare high-voltage full coin cells, using graphite as the negative electrode and LiNi0.5Mn1.5O4 (LNMO) as positive electrode. Detailed instructions are provided to researchers enable to prepare their own high-quality full coin cell.

6p vinobinu2711 03-03-2020 11 0   Download

Voltage sags can be symmetrical or unsymmetrical depending on the causes of the sag. At the present time, one of the most common procedures for mitigating voltage sags is by the use of dynamic voltage restorers (DVRs). By definition, a DVR is a controlled voltage source inserted between the network and a sensitive load through a booster transformer injecting voltage into the network in order to correct any disturbance affecting a sensitive load voltage. In this paper, modelling of DVR for voltage correction using MatLab software is presented.

9p kequaidan1 16-11-2019 23 0   Download

This paper focuses on the wind turbine technology influences on the power system voltage stability and on the power system quality. Because of lacking controls on active and reactive power, this wind turbine technology is considered the poorest power quality when harmonics problems are not concerned.

6p byphasse043256 24-03-2019 32 1   Download

The surveying and evaluation of the quality of control method for wind power systems using Doubly-Fed Induction Generators (DFIG) is a highly important signification. A new designing methodology for the passivity-based nonlinear controller is applied to gain some results which are described in this paper as can be seen, to control the Doubly-Fed Induction Generators, to maintain grid retaining of system in syschronical fault case which lead to drop a part of grid voltage.

6p blackwidow123 15-06-2018 38 2   Download

This paper proposes the Finite control set Model Predictive Control (FCS-MPC) with delay compensation for three-phase threelevel T-Type NPC inverter (T-Type NPC) of grid-connected photovoltaic systems (PV). The proposed FCS-MPC controls the objectives: current tracking control, DC-link capacitor voltage balance, the reduction of switching frequency to ensure issues of the power quality and improve the efficiency of grid-connected of PV system.

13p sansan2 26-05-2018 40 2   Download