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统计学

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How to extract 50Hz fundamental frequency components or DC components with less delay in Simulink?
I want to extract the 50Hz fundamental frequency component or DC component of the voltage at the shunt point in a double closed ...

14 days 前 | 1 个回答 | 0

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Why are there asymmetrical three-phase currents in a three-phase symmetrical circuit?
Inserting zero reference voltage into the system using LC-VSC three phase inverter, both source and load voltages are unbalanced...

20 days 前 | 1 个回答 | 0

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Why is there a 50Hz component in the load current dq transformation?
In my modelling for UPFC I found that the dq component of the load current has a 50Hz component, but how can I explain this phen...

20 days 前 | 1 个回答 | 0

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How to correctly calculate three-phase voltage at the PCC parallel point when placing a STATCOM?
I simulated STATCOM model and found that the calculated voltage at PCC point is not correct with the discrete solver used, how t...

21 days 前 | 0 个回答 | 0

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How to correctly calculate three-phase voltage at the PCC parallel point ?
I simulated STATCOM model and found that the calculated voltage at PCC point is not correct with the discrete solver used, how t...

21 days 前 | 0 个回答 | 0

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I'm having trouble solving a system of nonlinear equations with the fmincon function.
I want to solve a system of equations containing two non-linear equations, one of which is Psh_newhv == Pse_newhv,the other is Q...

1 month 前 | 1 个回答 | 0

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Solver stopped prematurely. fsolve stopped because it exceeded the function evaluation limit, options.MaxFunctionEvaluations = 2.000000e+02.
I want to solve a system of equations containing two non-linear equations, one of which is Psh==Pse,the other is Qs==0, but solv...

1 month 前 | 1 个回答 | 0

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Colour interference when two surfaces overlap
Colour interference when two surfaces overlap, how to solve it？

2 months 前 | 1 个回答 | 0

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Inverter DC Capacitor Voltage Control
Using PI to control the DC capacitor voltage of the inverter, but there are pulses from 0.4 seconds. I don't know what the cause...

2 months 前 | 1 个回答 | 0

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PLL phase-locked frequency failure
I used the RTU box 204 to build the PLL phase-locked loop, in order to eliminate the algebraic loop, in the phase wt and dq tran...

3 months 前 | 1 个回答 | 0

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How to measure the power of the VSC port
I want to simulate the dynamic voltage restorer simulation, but the strange thing is that when the load voltage is normal, the o...

4 months 前 | 1 个回答 | 0

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