Hi All,
I am simulating an electric drivetrain for marine application , where after designing the models I need to export the models to FMU . I am using the simscape electrical models, however , since I need to export , I have packaged them as susbsytem (using voltage and current measurement outputs as output and input signals)before connecting them to the other models in the drive train rather than directly connecting them in the electrical sense.
I have noticed that , when I directly connect the simscape models I/Os of say motor, converters etc , I see that the drivetrain works as expected in the sense, power flow is as expected i;e.,Pbatt>Pdcdc>Pdcac>Pmotor . However, If I use the subsystems to connect the models and run the simulation , I see a different behavious in the start and also the values of the Power outputs from each block , current etc mismatch.
Initially , I thought should be some intial value setting . But after I made sure the inital values are keyed in correctly , still I wasnt getting the results properly.
I need some help to resolve this issue from the community who has dealt with similar issues or can help me identify where it is going wrong.
I have attached my simulatio and parameters file , with screen shots of the scopes to look at.
Thanks in advance.Hi All,
I am simulating an electric drivetrain for marine application , where after designing the models I need to export the models to FMU . I am using the simscape electrical models, however , since I need to export , I have packaged them as susbsytem (using voltage and current measurement outputs as output and input signals)before connecting them to the other models in the drive train rather than directly connecting them in the electrical sense.
I have noticed that , when I directly connect the simscape models I/Os of say motor, converters etc , I see that the drivetrain works as expected in the sense, power flow is as expected i;e.,Pbatt>Pdcdc>Pdcac>Pmotor . However, If I use the subsystems to connect the models and run the simulation , I see a different behavious in the start and also the values of the Power outputs from each block , current etc mismatch.
Initially , I thought should be some intial value setting . But after I made sure the inital values are keyed in correctly , still I wasnt getting the results properly.
I need some help to resolve this issue from the community who has dealt with similar issues or can help me identify where it is going wrong.
I have attached my simulatio and parameters file , with screen shots of the scopes to look at.
Thanks in advance. Hi All,
I am simulating an electric drivetrain for marine application , where after designing the models I need to export the models to FMU . I am using the simscape electrical models, however , since I need to export , I have packaged them as susbsytem (using voltage and current measurement outputs as output and input signals)before connecting them to the other models in the drive train rather than directly connecting them in the electrical sense.
I have noticed that , when I directly connect the simscape models I/Os of say motor, converters etc , I see that the drivetrain works as expected in the sense, power flow is as expected i;e.,Pbatt>Pdcdc>Pdcac>Pmotor . However, If I use the subsystems to connect the models and run the simulation , I see a different behavious in the start and also the values of the Power outputs from each block , current etc mismatch.
Initially , I thought should be some intial value setting . But after I made sure the inital values are keyed in correctly , still I wasnt getting the results properly.
I need some help to resolve this issue from the community who has dealt with similar issues or can help me identify where it is going wrong.
I have attached my simulatio and parameters file , with screen shots of the scopes to look at.
Thanks in advance. power flow, electric drive MATLAB Answers — New Questions

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