Voltage Motor Controller Articles & Analysis: Older
56 articles found
EDF & Stornetic Co-operate on a Range of Applications for Short Time Power and Grid Management. EDF is one of the largest utility companies in Europe. At EDF’s invitation, Stornetic installed a DuraStor fast power storage at their R&D site (concept grid) in France. ...
Dosense Cable is a leading manufacturer of cables in China, specializing in the production of high-voltage power cables, control cables, overhead cables, bare conductors, data cables, fiber optic cables, OPGW, and ADSS. Our factory, located in the heart of China's manufacturing industry, is equipped with state-of-the-art production facilities and advanced technology. We have a team of experienced ...
AMI energy meter also called smart meter, it is smart grid electricity terminal monitor.Through AMI energy meters, utilities enable to offer new time-based rate programs and incentives that encourage customers to reduce peak demand and manage energy consumption and costs. AMI energy meter is the most important terminal hardware of smart grid. Today, I will revealed the hardware composition of AMI ...
Globally, every industry is accelerating decarbonization initiatives. Buildings and factories are becoming more electrified by replacing fossil-fuel-based heating and processes. As more renewable energy is progressively added to the power grid, the grid itself must take steps to decarbonize. The SF6 greenhouse gas currently has a unique use exemption in insulating medium-voltage (MV) electrical ...
Problems encountered in the laying of underground cables Attention shall be paid to the cable trench laying of underground cables. Cables with different voltage levels shall be set with different supports, and the cable trench itself shall pay attention to drainage measures. And consider measures to prevent small animals such as rats from entering. Question 1 Can high and low ...
Is a vehicle-to-grid future possible, where bidirectional chargers allow electricity to flow from electric vehicles back to the grid during peak demand? Given the current state of electric vehicle (EV) technology, coupled with existing pilot projects, we believe it’s more suitable to ask: what useful vehicle-to-grid applications can we implement today, and what valuable benefits await to be ...
In Ankara, a heat recovery system and a variable flow ventilation system according to demand were installed on the exhaust hood of a restaurant. Run around coil type air to water heat recovery system was selected. The warm water gained from the heat recovery coil was distributed to three separate heating coils. The first caoil is heating coil of kitchen make up air AHU. The second coil is ...
Application Place of LED Tri-proof Luminaires It is suitable for workshop, workshop, warehouse, cold storage, power plant, steel, petrochemical, ship, venue, parking lot, roadway and so on. It can completely replace the traditional three-proof lamps and lanterns. Characteristics of LED Tri-proof Luminaires 1. The lamp body uses high-power LED as the light source, which has the characteristics of ...
The wave (or “non-sinusoidal AC wave”) starts of as a flat positive voltage and drops suddenly to zero (almost straight down, not like a smooth wave). ...
Frequency is fundamentally related to the (speed * # of poles) so change either you'll change frequency from 50Hz to 60Hz or 60Hz to 50Hz. Then there's droop which is associated with governor action which arrest frequency decline based on spare capacity on a frequency converter, I'll get to that in a sec. Remember the simple but complex job of a frequency converter operator (assume control system ...
An adaptive hysteresis current and voltage control technique for controlling Unified Power Quality Conditioner (UPQC) is proposed in this paper. The novelty of the proposed method is the series and shunt active power filters (APF) present in the UPQC has been controlled by the separate adaptive controllers for reducing the voltage and current perturbations. Here, the adaptive control technique ...
In this paper, the nonlinear phenomenon in DC/DC buck converter is studied. A practical design for a DC/DC buck converter was considered in this study, which results in a more comprehensive understanding for the phenomenon. The nonlinearity of the buck converter is studied using the iteration mapping technique. The results showed that if the system has a well–designed buck converter as well as a ...
This paper presents mathematical analysis, design and simulation of a quadratic buck converter used as LED lamp driver, and the performance of the converter is compared with two different control strategies. The objective is to provide tight regulation of the LED current that can operate over a wide range of DC input voltages. The first control strategy is the non–linear Sliding–Mode (SM) current ...
As California ramps up its storage requirements, it has not included Concentrated Solar Power (CSP) with integrated energy storage. Instead it is testing pilot projects using batteries at utility-scale, even though it must be obvious to bean counters at utilities that batteries are never going to compete with utility scale CSP storage. By Susan Kraemer The 32 MWh battery storage pilot for ...
Multi–level inverter has emerged as an important topology in the area of high power–medium voltage control applications due to its several advantages such as a better output voltage with reduced total harmonic distortion (THD), reduction of voltage ratings of the power semiconductor switching devices and also the reduced ...
This paper presents a STATCOM–based voltage and frequency regulation for stand–alone asynchronous generator feeding linear and nonlinear loads. The SEIG have inherent poor voltage and frequency regulation. The voltage and frequency depend upon the load current and power factor of the load with fixed excitation capacitor employing unregulated turbines. The changing consumer load requires variable ...
This paper presents a single–stage isolated power factor corrected power supply (SSIPP) fed permanent magnet brushless DC (BLDC) motor drive. An advantage of fast voltage regulation with single voltage control loop of SSIPP is utilised to develop a power factor correction (PFC) based BLDC motor drive. The speed ...
One of the most complicated control problems in variable speed AC drives is the difficulty of processing feedback signal of the outer loop in the presence of harmonics. However, conventional fixed band hysteresis controller has a variable switching frequency throughout the fundamental period. A variable-hysteresis-band controller comes as a solution to reach an optimal ripple current. An ...
This paper presents the implementation of feedforward in digital domain to meet the audio susceptibility as per MIL STD 461C for voltage mode digitally controlled DC-DC converters. The feed-forward is accomplished through the estimation of duty ratio based on the input voltage at every switching cycle. The prototype converter developed is having galvanic isolation in the forward and feedback ...
This paper analyses the starting performance of two-leg AC voltage controller-fed three-phase induction motor drive and establishes that optimum value of firing angle combination for the voltage controller depends on the motor parameters. Identically rated machines with different ...