saber仿真反激变压器设置

本人第一次用saber仿真，困难重重，希望各位大神相助。
电网输入，（仿真上没有用220V交流，而是用311V直流代替）。12V输出。频率40K。
问题是：之前用17V的直流电给芯片供电，变压器用的是xfrl2，没有什么问题，现在用辅绕组供电用的是xfrl3。但是仿真一直报错，弄了好久也不明白，希望能解答一下。
报错：*** WARNING "TMPL_ALT_SPEC" *** /xfrl3.xfrl3_1: "l" overrides "n1"
specification. "n1" not used.
*** WARNING "TMPL_ALT_SPEC" *** /xfrl3.xfrl3_1: "l" overrides "len"
specification. "len" not used.
*** WARNING "TMPL_ALT_SPEC" *** /xfrl3.xfrl3_1: "l" overrides "area"
specification. "area" not used.
*** WARNING "TMPL_ALT_SPEC" *** /xfrl3.xfrl3_1: "l" overrides "n2"
specification. "n2" not used.
*** WARNING "TMPL_ALT_SPEC" *** /xfrl3.xfrl3_1: "l" overrides "len"
specification. "len" not used.
*** WARNING "TMPL_ALT_SPEC" *** /xfrl3.xfrl3_1: "l" overrides "area"
specification. "area" not used.
saber
Host user-THINK, Intel Pentium III running Windows NT 6.1 Ver. 7601 Service Pack
1
Sun Mar 09 10:40 2014
> dctr(tend 10m,terror 0.00005,tstep 3u
The no_ramping algorithm failed. Trying the dyn_ramping algorithm.
The dyn_ramping algorithm failed. Trying the gmin_ramping algorithm.
The gmin_ramping algorithm failed. Trying the static_ramping algorithm.
The static_ramping algorithm failed. Trying the den_ramping algorithm.
Automatic algorithm selection exhausted
*** ERROR "MAST_NO_NUM_EQUATION" *** Numerically no equation at /xfrl3.xfrl3_1/i
(l.l3).
*** ERROR "ALG_SINGULAR_JACOBIAN" *** Singular Jacobian matrix.
Some possible causes for a singular Jacobian matrix:
- 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.

Partial results were written to the initial point "dcerr".
execution time= 0.0936 sec.
messages given: 2 errors
附上我的附件 zhaoxiaofen-3bianya.rar