A research on the large-power rectifier real-time loss testing

For the 12-pulse rectifier system, a testing method of larger-power rectifier real-time loss (LRRL) is proposed in this paper. Firstly, the characteristics of valve side current and thyristor terminal voltage are researched and analyzed on basis of the measurement results. Then, a calculation method for LRRL can be presented according to the characteristics mentioned above. Finally, the practical testing results of an industry DC power system demonstrate the correctness of the current and voltage characteristics analyzed above, and the feasibility of the testing and calculating method of the LRRL. This method can be used to solve a lot of problems, such as LRRL measurement, power supply equipment and system's efficiency accounting. Furthermore, it can provide date for the assessment of energy saving.