Optimization techniques for improved power factor and energy efficiency for batch industrial processes

Processes requiring a variable applied voltage often use power electronic devices. This causes reduced power factor and higher levels of current harmonic injection. Although power quality issues are typically rendered after the fact, by careful consideration during the design phase, equipment and/or processes can often be designed to achieve a better performance. This paper deals with methods for improving power factor and energy efficiency during the design phase for batch type industrial process heating applications with variable power requirements.