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Yoshi Minagawa

MathWorks

Last seen: 4日 前 2021 以来アクティブ

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  • 3 Month Streak
  • Knowledgeable Level 2
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Solve a System of Linear Equations
*Example*: If a system of linear equations in _x&#8321_ and _x&#8322_ is: 2 _x₁_ + _x₂_ = 2 _x₁...

約1ヶ月 前

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Find the Oldest Person in a Room
Given two input vectors: * |name| - user last names * |age| - corresponding age of the person Return the name of the ol...

約1ヶ月 前

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Convert from Fahrenheit to Celsius
Given an input vector |F| containing temperature values in Fahrenheit, return an output vector |C| that contains the values in C...

約1ヶ月 前

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Calculate Amount of Cake Frosting
Given two input variables |r| and |h|, which stand for the radius and height of a cake, calculate the surface area of the cake y...

約1ヶ月 前

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Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

約1ヶ月 前

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how to add rising edge clk like this in stateflow?
Hi Le, You can add the rising edge port on chart block as below. 1. Set "input event" to the variable type 2. Open "Proper...

約2ヶ月 前 | 0

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How to adapt a Field Weakening control in the simulink model in a PMSM system?
Hi Varun, Maybe the sample model shown below is useful for you. In the Simscape Electrical library, there is "PMSM Field-Weaken...

約2ヶ月 前 | 0

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Is there any simple PI controller for Id and Iq current for current control of PMSM motor
Hi Varun, How about the sample model below. It is not so simple model but you can see how to use "Current Controller Block" and...

約2ヶ月 前 | 0

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Error when using spice model for MOSFET for Basic Buck w/ PI control
Hi Christine, When this error occurs, it maybe is valid to enable the filter of Simulink-PS Converter block. By enabling the fi...

約2ヶ月 前 | 0

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SIMULINK Blue and black components
Hi LightFury, They are the blocks for electrical modeling but different domain blocks, that why you can't connent them directry...

約2ヶ月 前 | 1

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raspberrypi_modbus_masterのモデルをコマンドで起動しようとしてもエラーが出てしまう
小杉様 ご質問ありがとうございます. おそらく、コマンド中のシングルクオーテーション、もしくは括弧が全角となっているために生じるエラーかと思われます. 下記のように半角のものに変更した状態でお試しください. 正:open_system('r...

2ヶ月 前 | 0

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simulink上でのラズパイとカメラ動作について
AK様 ご質問頂きありがとうございます. ハードウェアとの接続が正しく確立できていない可能性があります.下記の図を参考に正しいIPアドレスが設定されていることなどをご確認頂けますでしょうか. また、シミュレーション実行ボタンではなく、「監視と調整...

2ヶ月 前 | 0

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What environment temperature should I collect the step response data under?thanks.
Hi Shawn, I understood that this problem is changing plant dynamics due to plant's temperature and it makes the control difficu...

2ヶ月 前 | 0

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Simulink vs Stateflow application for sensor
Hi Hidd, Using Stateflow, you can make Sequence control very easily. (for example, schedulers, fault management systems, and su...

2ヶ月 前 | 0

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Integration step Issue in Simulink execution
Hi Hugh, Your simulink model might be stiff-model. The stiff model is a difficult model to simulate and the calculation speed o...

2ヶ月 前 | 0

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How to split a line in Simulink?
Hi Moritz, I don't know how to delete only the part of the signal line as you mentioned. But you can do the similar thing by th...

2ヶ月 前 | 0

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How to change evaluation time of a Matlab Function in Simulink
Hi Fernando, Although I didn't see your model and so I couldn't find the reason of the problem, I described the tips for this p...

2ヶ月 前 | 0

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How Can I add feedbacks on control inverted pendulum with LQR?
Hi Oguzhan, The value actually measured and obtained corresponds to Y. Therefore, if you get position and velocity values of th...

3ヶ月 前 | 0

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How to use stateflow inside a simulink closed loop?
Hi Moritz, I understood that your question is about the cause of the difference output between the two logics in attached model...

3ヶ月 前 | 1

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The linearization input/output port specification of the 'statespace_compensation/Bode Plot' block resulted in linear system with a value of zero.
Hi Vasilica, The main reason of this warning is that this model has discontinuous non-linearity. In making not only bode-plot b...

3ヶ月 前 | 0

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Model a Torque converter from fundamental equations using standard simulink blocks
Hi Aditya, I think the demo model of "sf_car" will be helpful. (Please enter "sf_car" in the command window.) There is a torque...

3ヶ月 前 | 0

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Does anyone know how to fix this?
Hi Tony, It seems that different data from expectedis appeared during "first step" in simulation. (Models that do not require c...

3ヶ月 前 | 0

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How to build a delta-connected PMSM simulink model or what's the output of PM Synchronous Motor mean 'R' 'C'?
Hello 英奇, Thank you for your asking. First, you should convert R and L in the delta connection to the those in the Y connect...

4ヶ月 前 | 0

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regenerate braking of bldc motor
Hello Muhammad, Thank you for asking. For modeling regenerative braking circuit for BLDC motor, the following link (sample ...

4ヶ月 前 | 0

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May I know how to solve this error in Simulink?
Please refer to the link below. You could get a hint. https://jp.mathworks.com/matlabcentral/answers/326834-why-am-i-getting-a...

4ヶ月 前 | 0

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Simulinkのエラー(line 146)について
エラー表示どおりであれば、simulinkモデル名がMATLABで使用できる命名規則に準じてないことが原因かもしれません. MATLABでは変数名は下記のルールに準じる必要があります 1 ~ 63 文字以内 アルファベット、数値、及びアンダースコアの...

4ヶ月 前 | 0

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Spectrum Analyzer sample rate.
Hello Paul, Please check the signal type of inport signal connected to Spectrum Analyzer Block. It must be a discrete signal. I...

4ヶ月 前 | 0

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Problem with control of IPMSM
Hello Meikel, Thank you for the question. I checked your model. I didn't understand whole of this model, but I found a part th...

4ヶ月 前 | 1

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ブラシレスモーターを発電機として利用するシミュレーションはできるか
はい、可能です. ご参考に、簡単な例としてBLDCモーターと三相整流器を用いた電力回生のモデルを作成してみました. モデル右側より、Ideal Angular Velocity Sourceブロックを用いてBLDCモーターを1000rpmで回転する...

4ヶ月 前 | 0

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状態フィードバックを用いた安定化
通常、極配置法で複数の極を移動させる場合、移動先の極は重複しない値を指定する必要があります.これは以下のドキュメントの注意の箇所にも記載があります. https://jp.mathworks.com/help/control/getstart/pole-...

4ヶ月 前 | 0

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