Based upon Juggernaut Training Systems and Chad Wesley Smith, the Juggernaut Method incorporates significant amounts of submaximal work to build work capacity in the lifter without overly taxing the CNS. Not specific to powerlifting, the Juggernaut Method will help athletes of many disciplines get stronger.
The spreadsheet here represents the basic 16 week cycle. If you want to really take your training to the next level, check out excellent literature below from Chad Wesley Smith.
Juggernaut Base Method Spreadsheet