DC machines

Part 2 book "Electric machinery" included contents: DC machines, variable reluctance machines and stepping motors, single and two phase motors, speed and torque control, three phase circuits.

305p dianmotminh04 12-07-2024 0 0   Download

Part 2 book "Power systems handbook short circuits in AC and DC systems" includes content: Current interruptions in AC networks, application and ratings of circuit breakers and fuses according to ansi standards, short circuit of synchronous and induction machines and converters, short circuit calculations according to ansi standards, short circuit calculations according to iec standards, calculations of short circuit currents in direct current systems.

467p dianmotminh03 17-06-2024 3 0   Download

Part 1 book "Motors for makers - A guide to steppers, servos, and other electrical machines" includes content: Introduction to electric motors, preliminary concepts, DC motors, stepper motors, servomotors, AC motors, gears and gearmotors, linear motors, motor control with the arduino mega.

177p dianmotminh03 09-06-2024 5 2   Download

Part 1 book "Handbook of electric power calculations" includes content: Basic network analysis, instrumentation, DC motors and generators, transformers, three phase induction motors, single phase motors, synchronous machines, generation of electric power, overhead transmission lines and underground cables, electric power networks, load flow analysis in power systems.

281p dianmotminh03 03-06-2024 8 3   Download

Part 2 book "Electrical engineering - Principles and applications" includes content: Diodes, amplifiers - Specifications and external characteristics, field effect transistors, bipolar junction transistors, magnetic circuits and transformers, DC machines, operational amplifiers, AC machines.

416p dianmotminh01 17-05-2024 5 4   Download

Part 2 book "Fundamentals of electric power engineering" includes contents: Introduction to power systems, fault analysis, transformers, synchronous generators, power flow analysis and stability of power systems, induction machines, ower semiconductor devices, rectifiers, inverters, DC-to-DC converters (Choppers).

294p dianmotminh01 14-05-2024 3 1   Download

The purpose of the field-oriented control (FOC) is therefore to create a tool that allows the decoupling control of the flux and torque-producing current components from the three-phase AC currents flowing in the coil. The FOC drive system is a system based on the principle of decoupling the above power components thanks to the stator current feedback control (the innermost circuit of the drive system). The FOC-type control method belongs to the class of vector control methods for electrical machines.

22p dianmotminh02 03-05-2024 2 1   Download

Part 1 book "Modeling, simulation and control of electrical drives" includes content: Introduction to electric drives; electric machines, dynamic models and sensors in drive systems; converters for drives; DC motor drives; synchronous motor drives; PM synchronous machine drives; control of PM brushless DC motor drives; switched reluctance motor drives; direct torque control of AC machines.

383p dianmotminh00 22-04-2024 3 2   Download

Electric drive systems are widely used in most sectors of the national economy. The basic task of the system is to convert electrical energy into mechanical energy and control that conversion process in working machines, especially in modern automatic production lines. Automatic electric drive systems play an important role in improving productivity and product quality.

10p vimichaelfaraday 28-12-2023 6 4   Download

"Standard Test Method for Direct Current Magnetic Properties of Soft Magnetic Materials Using D-C Permeameters and the Point by Point (Ballistic) Test Methods" provides dc permeameter tests for the basic magnetic properties of soft magnetic materials in the form of bars, rods, wire, or strip specimens which may be cut, machined, or ground from cast, compacted, sintered, forged, extruded, rolled, or other fabricated materials.

11p hth_hn_vn 10-12-2023 9 4   Download

This test method covers dc ballistic testing for the determination of basic magnetic properties of materials in the form of ring, toroidal, link, double-lapped Epstein cores, or other standard shapes which may be cut, stamped, machined, or ground from cast, compacted, sintered, forged, or rolled materials. It includes tests for normal induction and hysteresis taken under conditions of steep wavefront reversals of the direct-current magnetic field strength.

8p hth_hn_vn 10-12-2023 10 4   Download

This test method provides dc hysteresigraph procedures (B-H loop methods) for the determination of basic magnetic properties of materials in the form of ring, spirally wound toroidal, link, double-lapped Epstein cores, or other standard shapes that may be cut, stamped, machined, or ground from cast, compacted, sintered, forged, or rolled materials. It includes tests for normal induction and hysteresis loop determination taken under conditions of continuous sweep magnetization. Rate of sweep may be varied, either manually or automatically at different portions of the curves during measurement.

12p hth_hn_vn 10-12-2023 7 3   Download

Part 1 of ebook "Electric powertrain: Energy systems, power electronics and drives for hybrid, electric and fuel cell vehicles" provides readers with contents including: vehicles and energy sources; electromobility and the environment; vehicle dynamics; fuel cells; conventional and hybrid powertrains; electrical machines; introduction to traction machines; the brushed DC machine; induction machines;...

274p dangsovu 20-10-2023 13 7   Download

Continued part 1, part 2 of ebook "Electric powertrain: Energy systems, power electronics and drives for hybrid, electric and fuel cell vehicles" provides readers with contents including: surface-permanent-magnet AC machines; interior-permanent-magnet AC machine; power electronics; electromagnetism; DC-DC converters; isolated DC-DC converters; traction drives and three-phase inverters; control of the electric drive;...

283p dangsovu 20-10-2023 14 7   Download

Part 1 of ebook "Electric motor maintenance and troubleshooting" provides readers with contents including: Chapter 1 - The DC machine; Chapter 2 -Troubleshooting and testing the DC machine; Chapter 3 - AC electric motor theory; Chapter 4 - The single-phase motor;...

219p dangsovu 20-10-2023 7 3   Download

This paper shows the comparative power flow improvement in transmission line power system results using a Series Vectorial Compensator (SVeC). The proposed SVeC is one of the Flexible AC Transmission System (FACTS) devices that uses AC capacitor instead of DC capacitor.

5p vidoctorstrange 06-05-2023 5 2   Download

This paper proposes a control method of pulse-width modulation (PWM) converters for permanent magnet synchronous generator (PMSG) small wind turbines under distorted grid voltages. The DC-link voltage can be controlled at the machine-side converter (MSC), while the grid-side converter (GSC) controls the grid active power for a maximum power point tracking (MPPT).

9p kequaidan8 02-11-2020 14 1   Download

In this research, an enhanced control scheme for the permanent-magnet synchronous generator (PMSG) wind turbines under grid voltage fault condition is introduced. The machine-side converter (MSC) controls the DC-link voltage; however, this voltage value can be still increased during the grid fault.

10p vimax2711 27-03-2020 36 0   Download

To uplift the livelihood and financial conditions of the rural women value addition of minor millets can offer tremendous opportunity not only to income rather it increase national productivity and generates employment but also helps to develop economic independence and personal and social upliftment. Smt. Rathnamma is one such example who is from a small village named Gundamanatta in Srinivaspur Taluk of Kolar district. We have formed “Vaibhav Siridhanya Swasahaya Sanga” for processing of Minor Millets.

11p nguaconbaynhay3 07-02-2020 13 1   Download

Traditional type fertilizer broadcasters were with constant opening with gravity flow method which was showing high variation in discharge quantity of fertilizer between the rows and this lead to under and over dosage. A battery operated variable rate fertilizer broadcaster was developed and it consisting of storage tank, metering unit, spreading unit and variable rate controller unit was developed. To standardize the metering mechanism for the fertilizer applicator, a study was conducted on the existing fertilizer metering devices.

10p quenchua2 15-12-2019 11 0   Download