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Implementation

4.3 Model structure

SINAMICS PCS simulation model

16

Operating Instructions, 10/2020, A5E50173895A

4.3

Model structure

The model block for the power generating unit with its inputs and outputs is shown in the

following diagram.

Figure 4-1

Model block of the power generating unit in Simulink

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Summary of Contents for SINAMICS PCS

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Page 3: ...SINAMICS SINAMICS PCS simulation model Operating Instructions 10 2020 A5E50173895A Preface Safety notes 1 Description 2 Simulation model 3 Implementation 4 Settings 5 Appendix A ...

Page 4: ...y personnel qualified for the specific task in accordance with the relevant documentation in particular its warning notices and safety instructions Qualified personnel are those who based on their training and experience are capable of identifying risks and avoiding potential hazards when working with these products systems Proper use of Siemens products Note the following WARNING Siemens products...

Page 5: ...ange in the burden of proof to your disadvantage Security disclaimer for simulation products The planning and operation of a system can be simulated using the Siemens simulation model The simulation results only involve non binding recommendations which are dependent on the completeness and the correctness of the data that has been entered For each simulation optimization users must carefully chec...

Page 6: ...ndustry Online Support App you can access more than 300 000 documents for Siemens Industry products any time and from anywhere The App supports you in the following areas Resolving problems when executing a project Troubleshooting when faults develop Expanding a system or planning a new system Further you have access to the Technical Forum and other articles that our experts have drawn up FAQs App...

Page 7: ...t and information provided on them The user uses these web sites at his own risk Use of OpenSSL This product contains software https www openssl org that has been developed by the OpenSSL project for use in the OpenSSL toolkit This product contains cryptographic software mailto eay cryptsoft com created by Eric Young This product contains software mailto eay cryptsoft com developed by Eric Young C...

Page 8: ...Preface SINAMICS PCS simulation model 6 Operating Instructions 10 2020 A5E50173895A ...

Page 9: ...efault values setting ranges and response 12 3 Simulation model 13 3 1 Software environment 13 3 2 Media and file formats 13 4 Implementation 15 4 1 Description of the model files to be inserted 15 4 2 Instructions on how to import the model 15 4 3 Model structure 16 4 4 Deleting simulation models from projects 21 5 Settings 23 5 1 Simulation configuration 23 5 2 PGU model parameters 24 5 3 Compar...

Page 10: ...Table of contents SINAMICS PCS simulation model 8 Operating Instructions 10 2020 A5E50173895A ...

Page 11: ...lure to observe the safety instructions and residual risks If the safety instructions and residual risks are not observed in the associated documentation accidents involving severe injuries or death can occur Observe the safety instructions given in the associated documentation When assessing the risk take into account residual risks ...

Page 12: ...lable and that only the latest product versions be used Use of product versions that are no longer supported and failure to apply latest updates may increase customer s exposure to cyber threats To stay informed about product updates subscribe to the Siemens Industrial Security RSS Feed at Siemens Industrial Security RSS feed https new siemens com global en products services cert html Subscription...

Page 13: ...n expansion Drive Control Chart DCC see SINAMICS documentation https support industry siemens com cs ww en ps 6SL3054 0FC man Description of the features implemented in the SINAMICS PCS simulation model The simulation model models the following Grid reactor and inverter Closed loop control of the active and reactive current in undisturbed operation and for dynamic grid faults Closed loop control o...

Page 14: ...rid support for 2 phase asymmetrical grid voltage dips The PGU simulation model can be integrated in an electrical network that is simulated using Simscape In this network before the voltage measurement a line reactor with a uk 0 05 can be connected at the input of the PGU model 3 PGU models can be operated in parallel 2 3 Description of the default values setting ranges and response The subsequen...

Page 15: ...elf All of the configuration settings required are made at the signal inputs of the protected model To simulate several PGUs operating in parallel connected to one power supply grid several model instances can be incorporated in the MATLAB Simulink expansion Simscape 3 2 Media and file formats The model comprises the following files File Description EZE_SINAMICS_PCS slxp Protected PGU model Netz_S...

Page 16: ...Simulation model 3 2 Media and file formats SINAMICS PCS simulation model 14 Operating Instructions 10 2020 A5E50173895A ...

Page 17: ...llel The power supply grid is modeled using Simscape to facilitate simple configuring The open system model can be used as basis to create your own system model In addition the protected PGU model can be dragged from the open system model and dropped into another system model 4 2 Instructions on how to import the model The files specified in Chapter Media and file formats Page 13 must be saved in ...

Page 18: ...ulation model 16 Operating Instructions 10 2020 A5E50173895A 4 3 Model structure The model block for the power generating unit with its inputs and outputs is shown in the following diagram Figure 4 1 Model block of the power generating unit in Simulink ...

Page 19: ...te operation The various switch on types for SINAMICS PCS are not emulated here 0 1 4 P_ref_PLC Input Percentage limiting of the active power that is fed back The rated active power PN of the power generating unit is used as basis 0 1 5 Q_ref_EVU Input Percentage setpoint for the reactive power that is fed back The rated reactive power QN of the power generating unit is used as basis 1 1 6 k_FRT I...

Page 20: ...5 130 U _Zeit Delay time for U _Limit 35 ms 180000 ms U _Limit The protection function responds if the rms value of a phase to phase voltage falls below this limit value for more than time U _Zeit 10 100 U _Zeit Delay time for U _Limit 35 ms 800 ms U _Limit The protection function responds if the rms value of a phase to phase voltage falls below this limit value for more than time U _Zeit 10 100 U...

Page 21: ...fault detected 0 1 17 I_b_RMS Output Rms value of the reactive current in the positive phase sequence system Not limited in A 18 I_w_RMS Output Rms value of the active current in the positive phase sequence system Not limited in A 19 I_b_RMS Output Rms value of the reactive current in the negative phase se quence system Not limited in A 20 I_w_RMS Output Rms value of the active current in the nega...

Page 22: ...Implementation 4 3 Model structure SINAMICS PCS simulation model 20 Operating Instructions 10 2020 A5E50173895A ...

Page 23: ...esponse of the PGU when the grid voltage dips 11 Visualization of simulated variables 12 Possible installation point for grid impedances Figure 4 2 Power supply grid with 3 PGUs operating in parallel Note Simulation of FRT processes in grids with low short circuit power ratings When simulating FRT processes on grids with low short circuit power ratings soft networks the following measures can impr...

Page 24: ...Implementation 4 4 Deleting simulation models from projects SINAMICS PCS simulation model 22 Operating Instructions 10 2020 A5E50173895A ...

Page 25: ...0 2020 A5E50173895A 23 Settings 5 5 1 Simulation configuration The simulation model was developed and tested with the following settings Different settings can result in an incorrect model response Figure 5 1 Configuration of the Solvers in MATLAB Simulink ...

Page 26: ...er Model structure Page 16 5 3 Comparison between the setting options for the simulation model and the real PGU Regarding the features implemented in the simulation model according to Chapter Description of the PGU and the features implemented in the simulation model Page 11 the setting options available to users at the real PGU do not differ from the setting options of the model according to Chap...

Page 27: ...ices EMF ElectroMagnetic Fields EMC ElectroMagnetic Compatibility PUC Power Utility Company PGS Power Generating System PGU Power Generating Unit FRT Fault Ride Through HEM Heat Exchanger Module HVRT High voltage ride through HW Hardware LCM Line Connection Module LVRT Low Voltage Ride Through MV Medium Voltage GCP Grid Connection Point PCS Power Conversion System PELV Protective Extra Low Voltage...

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