MOSFET Switching Design - Motor - Current source load - on Tue, 01/05/2021 - 11:10 Designer https://explore.partquest.com/node/397639 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/397639"></iframe> Title Description <p>This design is similar to the design "Ideal Switching Design for Moog PMSM - BLDC Motor Use-Case", but the ideal switches in the inverter are replaced with "Datasheet" Power MOSFET models. These models are calibrated to match the datasheet specified characteristics of an STW45NM50 device. This replacement required the conversion to the digital signals used to control the switch states, to actual gate voltages. So representative models of the necessary gate drivers were also added.</p> <p>In addition, a "hot part monitor" model was added to one of the Power MOSFETs. This models the datasheet specified "Rthj_amb" (0.32 degrees C per Watt), in order to predict the internal junction temperature during different phases of inverter operation. A thermal time-constant of 1 ms was assumed, which may be quite unrealistic. It is possible to add much higher fidelity thermal network models of the heat transfer path if valid parameters are given.</p> <p>Finally, one of the low-pass filters used in the current sense path was changed to reflect a possible circuit implementation using op-amps. This is to show the ability to move seamlessly between ideal signal-flow (or continuous transfer function block) modeling to circuit implementation modeling, anywhere in a system design.</p> <p>You can also see a version of this design that uses the manufacturer provided SPICE model for the Power MOSFET: "STW45NM50 MOSFET Switching Design for Moog PMSM - BLDC Motor Use-Case"</p> About text formats Tags PMSMBLDCPWMSVMThermal Package model Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
MOSFET Switching Design - Motor - Current source load - on Tue, 01/05/2021 - 11:10 Designer https://explore.partquest.com/node/397639 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/397639"></iframe> Title Description <p>This design is similar to the design "Ideal Switching Design for Moog PMSM - BLDC Motor Use-Case", but the ideal switches in the inverter are replaced with "Datasheet" Power MOSFET models. These models are calibrated to match the datasheet specified characteristics of an STW45NM50 device. This replacement required the conversion to the digital signals used to control the switch states, to actual gate voltages. So representative models of the necessary gate drivers were also added.</p> <p>In addition, a "hot part monitor" model was added to one of the Power MOSFETs. This models the datasheet specified "Rthj_amb" (0.32 degrees C per Watt), in order to predict the internal junction temperature during different phases of inverter operation. A thermal time-constant of 1 ms was assumed, which may be quite unrealistic. It is possible to add much higher fidelity thermal network models of the heat transfer path if valid parameters are given.</p> <p>Finally, one of the low-pass filters used in the current sense path was changed to reflect a possible circuit implementation using op-amps. This is to show the ability to move seamlessly between ideal signal-flow (or continuous transfer function block) modeling to circuit implementation modeling, anywhere in a system design.</p> <p>You can also see a version of this design that uses the manufacturer provided SPICE model for the Power MOSFET: "STW45NM50 MOSFET Switching Design for Moog PMSM - BLDC Motor Use-Case"</p> About text formats Tags PMSMBLDCPWMSVMThermal Package model Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of AFE_4 on Thu, 12/31/2020 - 09:59 Designer https://explore.partquest.com/node/397114 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/397114"></iframe> Title Description <p>This design is similar to the design "Pre-Circuit Design for Moog PMSM - BLDC Motor Use-Case", but the continuous drive is replaced with a sampled-data space vector modulation (SVM) Controller and a 3-Phase inverter circuit that uses ideal (direct digital controlled) switches.</p> <p>You can also see a version of this design that uses actual Power MOSFET models to replace the ideal switches: "DS Power MOSFET Switching Design for Moog PMSM - BLDC Motor Use-Case"</p> About text formats Tags PMSMBLDCPWMSVM Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of AFE_3 on Wed, 12/30/2020 - 21:07 Designer https://explore.partquest.com/node/397076 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/397076"></iframe> Title Description <p>This design is similar to the design "Pre-Circuit Design for Moog PMSM - BLDC Motor Use-Case", but the continuous drive is replaced with a sampled-data space vector modulation (SVM) Controller and a 3-Phase inverter circuit that uses ideal (direct digital controlled) switches.</p> <p>You can also see a version of this design that uses actual Power MOSFET models to replace the ideal switches: "DS Power MOSFET Switching Design for Moog PMSM - BLDC Motor Use-Case"</p> About text formats Tags PMSMBLDCPWMSVM Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of AFE_2 on Wed, 12/30/2020 - 19:05 Designer https://explore.partquest.com/node/397071 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/397071"></iframe> Title Description <p>This design is similar to the design "Pre-Circuit Design for Moog PMSM - BLDC Motor Use-Case", but the continuous drive is replaced with a sampled-data space vector modulation (SVM) Controller and a 3-Phase inverter circuit that uses ideal (direct digital controlled) switches.</p> <p>You can also see a version of this design that uses actual Power MOSFET models to replace the ideal switches: "DS Power MOSFET Switching Design for Moog PMSM - BLDC Motor Use-Case"</p> About text formats Tags PMSMBLDCPWMSVM Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
AFE_1 Designer https://explore.partquest.com/node/397006 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/397006"></iframe> Title Description <p>This design is similar to the design "Pre-Circuit Design for Moog PMSM - BLDC Motor Use-Case", but the continuous drive is replaced with a sampled-data space vector modulation (SVM) Controller and a 3-Phase inverter circuit that uses ideal (direct digital controlled) switches.</p> <p>You can also see a version of this design that uses actual Power MOSFET models to replace the ideal switches: "DS Power MOSFET Switching Design for Moog PMSM - BLDC Motor Use-Case"</p> About text formats Tags PMSMBLDCPWMSVM Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Electric Power Steering System with Ideal PMSM and Drive Designer https://explore.partquest.com/node/396877 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/396877"></iframe> Title Description <p>This design includes an ideal Permanent Magnet Synchronous Machine (PMSM) model, as well as a continuous D-Q controller and drive circuit. The mechanical load model includes static and kinetic friction, a steering force that varies with rack displacement, as well as various mass, inertia, damping and spring/stiffness elements of the steering system. The steering torque, applied by the vehicle's driver, is assisted by torque from the motor scaled by the gear ratio. For the control, a non-linear gain profile is specified in the "torque_assist_table" function, and a lead-lag compensator is used to improve system stability.</p> <p>Note that this is a "tunable" design. Many of these system parameters can be changed by the user. Then a new simulation can be run and the updated results can be observed in the waveform viewers.</p> <p>In a companion versions of this design, "EPS System with MotorSolve Generated PMSM Model and Ideal Drive", the ideal PMSM is replaced with a more realistic motor model generated by MotorSolve, the motor design tool. That model includes cogging torque, saturation and torque ripple behavior, which is seen to have a significant effect in this power steering application.</p> <p>A second companion design, "EPS System with MotorSolve Generated PMSM Model and DQ/SVM Drive", uses both the MotorSolve motor model and also a sampled-data D-Q control algorithm and space-vector modulation (SVM) to control the switches in a power electronics circuit. This shows the ability to develop motor control and drives at the abstract level and also at the circuit level.</p> About text formats Tags PMSMEPSPower Steering Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
PMSM Motor and Ideal Drive_w_Loop Designer https://explore.partquest.com/node/396875 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/396875"></iframe> Title Description <p>Permanent Magnet Synchronous Machine (PMSM) and Ideal (continuous) Drive circuit, with mechanical load. The drive includes a D-Q control algorithm.</p> <p>In a companion version of this design, "PMSM Motor And PWM Drive", the same motor control algorithm is used but SVM (space vector modulation) provides PWM switching signals to ideal switches in an actual 3-phase inverter implementation.</p> About text formats Tags PMSMBLDCPWM Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
PMSM Motor and Ideal Drive_I_Loop by Di Designer https://explore.partquest.com/node/396874 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/396874"></iframe> Title Description <p>Permanent Magnet Synchronous Machine (PMSM) and Ideal (continuous) Drive circuit, with mechanical load. The drive includes a D-Q control algorithm.</p> <p>In a companion version of this design, "PMSM Motor And PWM Drive", the same motor control algorithm is used but SVM (space vector modulation) provides PWM switching signals to ideal switches in an actual 3-phase inverter implementation.</p> About text formats Tags PMSMBLDCPWM Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of Electric Power Steering System with Ideal PMSM and Drive Designer https://explore.partquest.com/node/396670 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/396670"></iframe> Title Description <p>This design includes an ideal Permanent Magnet Synchronous Machine (PMSM) model, as well as a continuous D-Q controller and drive circuit. The mechanical load model includes static and kinetic friction, a steering force that varies with rack displacement, as well as various mass, inertia, damping and spring/stiffness elements of the steering system. The steering torque, applied by the vehicle's driver, is assisted by torque from the motor scaled by the gear ratio. For the control, a non-linear gain profile is specified in the "torque_assist_table" function, and a lead-lag compensator is used to improve system stability.</p> <p>Note that this is a "tunable" design. Many of these system parameters can be changed by the user. Then a new simulation can be run and the updated results can be observed in the waveform viewers.</p> <p>In a companion versions of this design, "EPS System with MotorSolve Generated PMSM Model and Ideal Drive", the ideal PMSM is replaced with a more realistic motor model generated by MotorSolve, the motor design tool. That model includes cogging torque, saturation and torque ripple behavior, which is seen to have a significant effect in this power steering application.</p> <p>A second companion design, "EPS System with MotorSolve Generated PMSM Model and DQ/SVM Drive", uses both the MotorSolve motor model and also a sampled-data D-Q control algorithm and space-vector modulation (SVM) to control the switches in a power electronics circuit. This shows the ability to develop motor control and drives at the abstract level and also at the circuit level.</p> About text formats Tags PMSMEPSPower Steering Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
