请教saber的一个问题
我对变压器不熟，在做一个直流逆变三相交流时，总是变压器出问题（DC分析时错误如下），请教如何解决
- Model operating outside of its intended region of operation.
- Node/subsystem with no connection to the reference (floating).
- Current loops (voltage sources/inductors in parallel).
- Missing equation and/or missing variable reference.
Potential problem variables/equations:
/cout
/x3pdy.x3pdy1/xfr.2/i(l.lp)
/x3pdy.x3pdy1/xfr.3/i(l.lp)
/cout
Partial results were written to the initial point "dcerr".
execution time= 0.0701 sec.
messages given: 1 error
> 1070502197.ai_dsn
