## 5 Conclusions  
This paper proposes a new DHPM vernier motor prepared by replacing the PMs on the stator of a conventional DHPM-type vernier motor, employing salient poles and substituting a saddle coil. We analyzed the various features of the proposed DHPM vernier motor using precise simulations.  
1. The proposed model was prepared by replacing the stator's PMs with salient poles. The analysis results demonstrate that the induced voltage is almost equal to that of the DHPM-type vernier motor prepared by adding PMs to electromagnets.
2. We prepared the proposed model by setting the inclination angle at 7.5\({}^{\circ}\). The high torque of the proposed model confirms its effectiveness. The change rate in the interlocking magnetic flux of the coil increased. In addition, the area of the interlinkage magnetic flux of the silent pole increased with the change in the inclination angle. In the proposed DHPM-type vernier motor to which the angle was applied, the interlinkage magnetic flux area of the salient pole and the temporal change rate in the interlinkage magnetic flux of the stator increased by the inclination angle. Additionally, a greater torque was obtained, and its effectiveness was confirmed.
3. Compared with the other motors, such as the SPM-type vernier motor and DHPM-type vernier motor, the magnetic flux density of the proposed DHPM vernier motor increased depending on the inclination angle. The space volume ratio improved at the inclination angle of 7.5\({}^{\circ}\), which proves that the space utilization efficiency increased and both the energy density per unit volume and per unit weight improved.
4. By comparing the load-free rotation number (rpm) and the maximum torque (Nm) when starting a proposed DH vernier motor and a conventional DH vernier motor, we demonstrated that the proposed DHPM vernier motor can produce lower-speed high-torque characteristics. Following this research, research on design optimization and miniaturization will be conducted by comparing the performance and analyzing the magnetic flux density with the inclination angle (or the like) to improve the energy density per unit volume and per unit weight for practical use for a new DHPM vernier motor.  
Conceptualization, S.C., N.N., and K.H.; methodology, S.C. and N.N.; software, S.C.; validation, S.C., J.-H.L., and K.H.; formal analysis, S.C. and N.N.; investigation, S.C.; resources, S.C. and K.H.; data curation, S.C.; writing--original draft preparation, S.C.; writing--review and editing, J.-H.L. and K.H.; visualization, S.C.; supervision, J.-H.L. and K.H.; project administration, S.C.; funding acquisition, S.C. and K.H. All authors have read and agreed to the published version of the manuscript.  
Figure 14: Comparison of the air gap field generated by the three-phase winding of the harmonic order.  
**Funding:** This work was supported by the DGIST R&D Program of the Ministry of Science, ICT and Future Planning of Korea (19-ST-01). This study has been worked with the support of a research grant of Kangwon National University in 2016.  
**Institutional Review Board Statement:** Not applicable.  
**Informed Consent Statement:** Informed consent was obtained from all subjects involved in the study.  
**Data Availability Statement:** Data sharing not applicable.  
**Conflicts of Interest:** The authors declare no conflict of interest.