Electrical Power Systems Quality, Third Edition 3rd Edition

Electric Power Distribution Engineering, Third Edition 3rd Edition

Smart Grid: Fundamentals of Design and Analysis

Power Line Communications: Principles, Standards and Applications from Multimedia to Smart Grid 

VSC Transmission Operating Under Unbalanced AC Conditions—Analysis and Control Design

Abstract—This paper presents an analysis and a new control

design of a voltage-source converter (VSC) transmission system

operating under unbalanced network conditions. The system

is analyzed in the positive and negative synchronous reference

frames. The proposed control strategy contains a main controller

and an auxiliary controller. The main controller is implemented in

the positive d–q frame using decoupling control without involving

positive/negative-sequence decomposition. The auxiliary controller

is implemented in the negative-sequence d–q frame using

cross-coupling control of negative-sequence current. Simulation

results using the SIMULINK power system blockset show good

performance of the proposed control strategy for a 300-MW

300-kV dc VSC transmission system during both balanced conditions

and unbalanced conditions as may be caused by a solid

single-phase-to-ground fault.

 

 Reference:

1.0 IEEE Transaction Paper - Weblink

Power Quality

Power Quality

Blackouts Illuminate India’s Power Problems

For two consecutive days in July, India experienced blackouts that took down large portions of the country’s power grid. The second outage was the largest in history, leaving more than 600 million people, nearly a tenth of the world’s population, without electricity. The blackouts brought renewed attention to the country’s power sector, which is struggling to supply India’s growing demand. They exposed weak links in the transmission system, inadequate fail-safe systems for preventing cascading failures, and a lack of proper outage planning.


The 30 and 31 July failures may have affected more people than any blackout ever, but it’s tough to argue that they were the most disruptive. “I did not even know that there was some problem in the grid, because I was working from home, and in this building we have 100 percent backup,” says Sivakumaran Govindarajan, a member of the India Smart Grid Forum, who lives just outside Delhi, the largest city affected by both blackouts. 


 

 Read the Full Article Here

Smart Grid

 

Smart Grid

Smartgrid is use of telecommunication to close the communication loop of generation and consumtion. Technical loss reduction,  distributed generation and renewable energy solutions constitute a major contribution of the smartgrid.

We perform system studies- load flow, transient simulation and contingency studies like transient stability of the network. Power electronics and embedded system design is our specialty.

We perform analysis, design and simulation of various communication protocols that are used for smartgrid. We work with FPGA, ARM, embedded Linux, multithreaded application, RTOS systems. We work with most board startup  linux  solutions.

Optimal digital power control using LLC resonant converters

 

admin - Posted on 11 March 2013

Optimal digital power control using LLC resonant converters - The authors describe a digital power control implementation using line level control (LLC) resonant converters based on a flexible, 32-bit, low-cost, high-performance microcontroller. Key elements of digital power control are explored; including duty cycle control, dead-band adjustment in real time, frequency control, and adaptive thresholds for maintaining different safe operation regions.View the full article HERE. [Embeded Systems]

Renewable Energy and Microgrid Solutions

Renewable Energy and Micro-grid  solutions is part of a  Smart grid Technology.  System Level Simulation and Analysis services are provided in all aspects of smart grid Technology.

System Architecture and operational analysis of the grid and microgeneration is analyzed in details in such studies.

Reactive Power Compensation

 Reactive Power compensation in Indian Transmission and Distribution  Grid.  A position paper about problems, methods and solutions. This paper also states our approach and solutions methods.

V VARW Concept

Free Download

Go to top