Please, I need a solution for this lab including the electrical circuits required to be added to the PSIM SOFTWARE.

Document Related Documents Related Questior EEET2274 Laboratory_#4_2015.pdf Royal Melbourne Institute of Technology * EEET 2274 28/8/2022 M14Pages 21 Views RMIT University 2015 School of Electrical and Computer Enginecring Electrical Energy Conversion Laboratory #4: PSIM Investigation of SCR Rectifiers 1. Aims To gain experience in the use of simulation (PSIM) to investigate the operation of SCR based rectifier systems. = To investigate by simulation the operation of single and three phase SCR rectifiers under various operating conditions and SCR characteristics. 2. Equipment = Laboratory computer with PSIM installed = Experimental Results from Laboratories #1, #2, #3 3. Background The main aim of this laboratory exercise is to use a simulation study to investigate the operation of single and three phase SCR based rectifiers under a wider variety of operating conditions and device characteristics that is possible using the experimental equipment available in the laboratory. Simulation is a very convenient and flexible way of undertaking such studies, since it allows conditions to be rapidly varied without physical rearrangement of the circuit, and also allows extreme conditions to be investigated without any risk of physical equipment damage. PSIM is an \"ideal\" or \"functional\" simulation tool that uses idealised switches, transistors, etc, It is appropriate for a design in principle investigation, but is not so suitable for an in- depth design of electronic circuits. When using a simulation tool such as PSIM, you must always keep in mind the limitations of the simulation process, and watch out for \"rubbish\" results. Simulations offer a \"blind\" mathematical solution if you ask for physically impossible situations such as infinite di/dt, the program will do its best to respond. Also, if you want to include more realistic second order effects in components, such as winding resistance in an inductor, you have to include this as a separate component. Sometimes, the lack of any resistance in a simulated circuit will cause a numerical instability, which will damp out with only a trivial amount of resistance added. Always look at your simulation from a physical point of view is it realistically achievable, sensible, and related to the real world. 4. Overview of Simulation Systems to be investigated. Both single and three phase SCR based rectifiers are to be simulated for this experiment. The simulation systems you develop should be similar to those presented in the lectures for this material, illustrated in Fig. 1 for a full wave single phase rectifier and in Fig. 2 for a three phase bridge rectifier. Note that the rectifiers presented in these figures are ILLUSTRATIVE ONLY, and are only intended to provide an initial framework of appropriate simulations as a starting point for the experiment. You should anticipate to adapt these circuits, and to add various measurement points, change parameters, and change operating conditions and loads as required, to pursue your investigations. Note in particular the use of the alpha controller to generate the firing pulses for the SCRs. These controllers must be synchronised to a common input frequency, achieved in Figs | Professor Grahame Holmes EEET2274/EEET2337 Laboratory #4 V1 1