public class Plan {
   @AuraEnabled
    public static string Plan(String jobName, String d, String scheduleName) {
       String jobId;
       Type scheduleClass = Type.forName(scheduleName);
       if (scheduleClass != null) {
           Schedulable m = (Schedulable) scheduleClass.newInstance();
            jobId = system.schedule(jobName, d, m);
       }
       return jobId;
   }
}

Plan A=new Plan('Test','0 0 13 * *  ?','PlanTest');