DC systems

This paper proposes a low-voltage ridethrough (LVRT) capability for a doubly-fed induction generator (DFIG) wind turbine (WT) system. With the proposed method, series grid-side converter (SGSC) in which its DC-side connected at the DC bus of the back-toback converters and its AC-side connected in series with line through transformer have been applied, enables to compensate a voltage response of the system during the grid faults and to reduce the capital cost.

9p vithomson 02-07-2024 0 0   Download

In this paper, we propose a system using fuzzy PID controller, STM32F103C8T6 microcontroller, ESP8266 wifi module to monitor DC motor speed and some parameters to evaluate the quality of the system through web server. System simulation on Matlab-Simulink confirms the effectiveness of this controller.

7p vithomson 02-07-2024 1 0   Download

Part 1 book "Practical electrical wiring" includes content: NEC, product standards, and inspection; numbers, measurements, and electricity; AC and DC power factor - transformers; basic electrical power utilization systems; basic devices and equipment; overcurrent devices; selecting conductors; making wire connections and splices; grounding for safety; outlet and switch boxes; wiring methods; planning residential installations; residential electrical distribution; residential lighting; residential and farm motors.

311p dianmotminh04 12-07-2024 0 0   Download

Part 1 book "Hughes - Electrical and electronic technology" includes content: International system of measurement, introduction to electrical systems, simple dc circuits, network theorems, capacitance and capacitors, electromagnetism, simple magnetic circuits, inductance in a DC circuit, alternating voltage and current, single phase series circuits, single phase parallel networks, power in AC circuits, complex notation, resonance in AC circuit, network theorems applied to ac networks,... and other contents.

498p dianmotminh03 17-06-2024 1 0   Download

Part 1 book "Shipboard electrical power systems" includes content: AC power fundamentals, shipboard power system architectures, common aspects of power equipment, AC generator, AC and DC motors, transformer, power cable.

214p dianmotminh03 17-06-2024 1 0   Download

Part 1 book "Power systems handbook short circuits in AC and DC systems" includes content: Design and analyses concepts of power systems, modern electrical power systems, wind and solar power generation and interconnections with utility, short circuit currents and symmetrical components, unsymmetrical fault calculations, matrix methods for network solutions.

279p dianmotminh03 17-06-2024 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 "Modern diesel technology - Electricity and electronics" includes content: Safety, the fundamentals of electricity, physics for electricity, electrical components, batteries, basic electronics, charging systems, DC motors

284p dianmotminh03 11-06-2024 5 3   Download

Part 2 book "Power supply devices and systems of relay protection" includes content: Lead–acid accumulator batteries; systems for supervision of substation battery continuity; backup of substation DC auxiliary power systems; insulation problems in substation dc auxiliary power supply; voltage disturbances in auxiliary power supply.

87p dianmotminh03 11-06-2024 4 1   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 1 book "Hughes electrical and electronic technology" includes content: International system of measurement, introduction to electrical systems, simple dc circuits, network theorems, capacitance and capacitors, electromagnetism, simple magnetic circuits, inductance in a DC circuit, alternating voltage and current, single phase series circuits, single phase parallel networks, power in AC circuits, complex notation, resonance in AC circuits; network theorems applied to ac networks; electronic systems; passive filters,... and other contents.

578p dianmotminh03 03-06-2024 4 2   Download

Part 1 book "Electricity and electronics for renewable energy technology - An introduction" includes content: Energy and electricity, basic mathematics and systems of measurement units, atomic structure of materials, DC and DC electricity; voltage, current, and power; DC circuits relationships; DC motors and generators; AC circuits relationships, three phase systems, transformers.

349p dianmotminh01 20-05-2024 7 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

Excessive unbalance of the DC capacitor voltages of the inverter can cause overvoltages on power components and capacitors, causing unintended low-order harmonics on the load side such as second harmonics, 3rd, 4th, 5th,..., causing direct harm to the motor load, reducing the controllability of the reverse voltage and filter compensating current for the active filter circuit, affect to the performance of electric vehicles (EVs).

12p viohoyo 25-04-2024 3 2   Download

Part 2 book "Advanced control of electrical drives and power electronic converters" includes content: Active power filter based on a dual converter topology, AC/DC/AC converter with power electronics current modulator used in dc circuit for renewable energy systems; power electronics inverter with a modified sigma delta modulator and an output stage based on GaN E-HEMTs;... and other contents.

235p dianmotminh00 22-04-2024 9 2   Download

Part 2 book "Transients in electrical systems - Analysis, recognition, and mitigation" includes content: Transient behavior of transformers; power electronic equipment and facts; flicker, bus transfer, torsional dynamics, and other transients; insulation coordination; gas insulated substations—very fast transients; transients and surge protection in low voltage systems; surge arresters; transients in grounding systems, lightning protection of structures, DC systems, short circuits, distributions, and hvdc chapter 24 smart grids and wind power generation.

358p dianmotminh00 22-04-2024 8 5   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

Ebook "Crossroads between Innate and Adaptive immunity II" is designed to serve as a forum to discuss the most recent progress in complement research as it pertains to human disease pathogenesis and therapeutics. The rapid pace of development in complement basic research and the advent and application of new experimental approaches in this field have now allowed us to take an integrated view of the in vivo biology of the complement system.

138p cotieubac1004 15-03-2024 4 0   Download

Part 2 book "Power electronics - Devices, circuits, and applications" includes content: Controlled rectifiers; AC voltage controllers; flexible AC transmission systems; power supplies, DC drives; AC drives; introduction to renewable energy; protections of devices and circuits.

500p muasambanhan06 03-02-2024 7 2   Download