lanhunwu 发表于 2014-5-14 14:06

求助，做仿真时时间到这里就不运行下去了

本帖最后由 牛小贱 于 2014-5-17 20:14 编辑

运行时，系统提示警告信息：
Found algebraic loop containing:
'fenglidadianji1/PID Controller2/Proportional Gain'
'fenglidadianji1/abc_to_dq0 Transformation1/Gain1'
'fenglidadianji1/abc_to_dq0 Transformation/Gain1'
'fenglidadianji1/Sum1'
'fenglidadianji1/PID Controller1/Proportional Gain'
'fenglidadianji1/PID Controller1/Sum'
'fenglidadianji1/Sum3'
'fenglidadianji1/PID Controller3/Proportional Gain'
'fenglidadianji1/dq0_to_abc Transformation/Fcn2'
'fenglidadianji1/dq0_to_abc Transformation/Fcn4'
'fenglidadianji1/dq0_to_abc Transformation/Fcn5'
'fenglidadianji1/PWM Generator/Switch' (discontinuity)
'fenglidadianji1/PWM Generator/Relational Operator' (discontinuity)
'fenglidadianji1/PWM Generator/BL4' (discontinuity)
'fenglidadianji1/abc_to_dq0 Transformation/Sum4' (algebraic variable)
'fenglidadianji1/abc_to_dq0 Transformation1/Sum4' (algebraic variable)
'fenglidadianji1/abc_to_dq0 Transformation/Fcn1'
'fenglidadianji1/PWM Generator/Data TypeConversion'
'fenglidadianji1/Universal Bridge/Model/continuous IGBT/Tail'
'fenglidadianji1/powergui/EquivalentModel1/State-Space' (discontinuity)
'fenglidadianji1/Three-Phase V-I Meaurement/Model/VI/Kv' (algebraic variable)
'fenglidadianji1/abc_to_dq0 Transformation/Fcn2'
'fenglidadianji1/Sum' (algebraic variable)
'fenglidadianji1/PID Controller/Proportional Gain'
'fenglidadianji1/PID Controller/Sum'
'fenglidadianji1/abc_to_dq0 Transformation1/Fcn1'
'fenglidadianji1/Current Measurement2/do not delete this gain' (algebraic variable)
'fenglidadianji1/Current Measurement1/do not delete this gain' (algebraic variable)
'fenglidadianji1/Current Measurement/do not delete this gain' (algebraic variable)
'fenglidadianji1/abc_to_dq0 Transformation1/Fcn2'
'fenglidadianji1/Sum2' (algebraic variable)
This algebraic loop may be resolved when the subsystem option 'Minimize algebraic loop occurrences' is selected on some or all of the atomic and enabled subsystems in this algebraic loop.
Warning: Discontinuities detected within algebraic loop(s), may have trouble
solving
Warning: Using a default value of 0.198 for maximum step size.The simulation
step size will be equal to or less than this value.You can disable this
diagnostic by setting 'Automatic solver parameter selection' diagnostic to
'none' in the Diagnostics page of the configuration parameters dialog
Warning: Division by zero in 'fenglidadianji1/Subsystem/Divide'
Warning: Convergence problem (mode oscillation) detected when solving algebraic
loop containing 'fenglidadianji1/PID Controller2/Proportional Gain' at time
0.10463189393921762.Simulink will try to solve this loop using Simulink 3
(R11) strategy.Use feature('ModeIterationsInAlgLoops',0) to disable the
strategy introduced in Simulink 4 (R12)
>>



牛小贱 发表于 2014-5-14 16:23

请楼主把模型以附件形式上传，只有错误提示，很难找到问题~

lanhunwu 发表于 2014-5-14 16:56

本帖最后由 牛小贱 于 2014-5-14 20:57 编辑

附件已经上传，麻烦了！

牛小贱 发表于 2014-5-14 20:52

lanhunwu 发表于 2014-5-14 16:56
附件已经上传，麻烦了

我看了一下，对楼主所搞的方向不是很了解，帮不到楼主了~

lanhunwu 发表于 2014-5-14 22:28

没事，还是谢谢了

ppsqtjn 发表于 2014-6-4 12:07

真是好人啊~~











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