The Solution As part of the U.S. Department of Energy and EPRI “Turbine Verification Program,” Enron Wind has developed a closed-loop power plant voltage control called “dynamic VAR (DVAR).” The DVAR ...

Using voltage data down to the consumer level is essential for grid optimisation and operational flexibility in the new era of intermittent generation and fast-changing user demand. Power grids were ...

Experimenting with an HF oscillator, I needed to control the varactor diode voltage in precise increments over a 2V-10V range. A buffered potentiometer was the obvious choice, and connecting two pots ...

The distribution system, a key subset of the overall electric grid, provides power to residential, commercial and industrial customers. Voltage and reactive power management and control have been done ...

In addition to the usual array of positive-voltage supplies, many systems requiring hot-plug into a live backplane need at least a single -5-V or -5.2-V supply. There are numerous positive low-voltage ...