PA30Bi-H Power Amplifier User Manual
9
2. General
Real time digital simulator technology has broad applications in power system test and
research nowadays. As the computer technology and the research of power system
simulator are improving, several different kinds of digital simulator systems are coming
out continuously, such as RTDS, EDF, TEQSIM, etc. However, power amplifier, as the
final output in simulator system, will always be the most important part of full digital
simulator or digital-analog simulator, no matter how they have changed.
The power amplifier for digital simulator in power system is required to have high linearity,
quick response, be available to all kinds of capacitive, inductive and resistive loads.
Generally power amplifier consists of two types of amplifiers: linear power amplifier and
switching power amplifier. The linear power amplifier has the strengths of high linearity,
quick response, high accuracy, good electromagnetic compatibility and the weakness of
bad performance in high current and high power cases. The switching power amplifier is
quite fit in high current, high power devices with its strength of high efficiency, but it’s weak
in linearity, small signal noise, DC offset, drift, transient response, load driving capability
aspects, which are very difficult to fix.
PA30Bi-H can produce 3-phase current, with maximum RMS phase current of 30A and
maximum output power of 450VA, and 4-phase voltage, with maximum RMS phase
voltage of 250V and maximum output power of 75VA.
