瞬态仿真不收敛

tiaotiaotang404

小弟在仿真一个RF-DC整流器，频率915MHz，在进行瞬态仿真的时候出现警告和报错如下：


Warning from spectre at time = 320.599 fs during transient analysis `tran'.
    WARNING (SPECTRE-16266): Error requirements were not satisfied because of convergence difficulties.
Warning from spectre at time = 522.948 fs during transient analysis `tran'.
    WARNING (SPECTRE-16266): Error requirements were not satisfied because of convergence difficulties.
Warning from spectre at time = 599.629 fs during transient analysis `tran'.
    WARNING (SPECTRE-16266): Error requirements were not satisfied because of convergence difficulties.
Warning from spectre at time = 656.411 fs during transient analysis `tran'.
    WARNING (SPECTRE-16266): Error requirements were not satisfied because of convergence difficulties.
Warning from spectre at time = 714.594 fs during transient analysis `tran'.
    WARNING (SPECTRE-16266): Error requirements were not satisfied because of convergence difficulties.
        Further occurrences of this warning will be suppressed.
Warning from spectre at time = 6.0953 ps during transient analysis `tran'.
    WARNING (SPECTRE-16191): Minimum time step used.  Solution might be in error.
Warning from spectre at time = 6.0953 ps during transient analysis `tran'.
    WARNING (SPECTRE-16191): Minimum time step used.  Solution might be in error.
Warning from spectre at time = 6.0953 ps during transient analysis `tran'.
    WARNING (SPECTRE-16191): Minimum time step used.  Solution might be in error.
Warning from spectre at time = 6.0953 ps during transient analysis `tran'.
    WARNING (SPECTRE-16191): Minimum time step used.  Solution might be in error.
Warning from spectre at time = 6.0953 ps during transient analysis `tran'.
    WARNING (SPECTRE-16191): Minimum time step used.  Solution might be in error.
        Further occurrences of this warning will be suppressed.
Error found by spectre at time = 6.21498 ps during transient analysis `tran'.
    ERROR (SPECTRE-16927): Transient simulation reaches maximum allowed number of convergence failures below minstep within 5% of stop time.
        Change option `max_minstep_nonconv' to adjust the allowed maximum number of convergence failures below minstep.
Last acceptable solution computed at 6.21498 ps.

瞬态仿真的精度在设置为conservative和moderate均出现上述错误，当设置为liberal仿真可以正常运行；
想问问导致这个错误的原因是什么？有什么方法可以解决？如果我使用liberal进行瞬态仿真得到的结果能用吗，会不会因为精度低导致结果错误？感谢各位解答！！！！

tiaotiaotang404

找到原因了，是我的地连接的有问题，感谢