This paper combines quasi-Z-source into a typical five-level inverter, which includes two dc voltage sources, two quasi-Z-sources and five switching devices. In this structure, the output voltage amplitude is not limited to dc voltage source and it can be increased by quasi-Z-source. Besides, due to nature of Z-source families, this new structure is reliable and higher efficiency. Also, in this inverter, two quasi-Z-networks can be controlled independently. This paper also proposes new switching algorithms for proposed five-level dual quasi-Z-Source inverter based on pulse width modulation (PWM) and selective harmonic elimination method (SHEM) algorithms .The performance of proposed inverter and switching algorithm are validated with simulation results using MATLAB/SIMULINK software and experimental results based PCI-1716 data acquisition system.
 M. R. Banaei, M. R. Jannati Oskuee, H. Khounjahan “Reconfiguration of semi-cascaded multilevel inverter to improve systems performance parameters,” IET Power Electron. , vol. 7, no. 5, pp. 1106-1112, 2014.
 E. Babaei, S. Laali, Z. Bayat “A single-phase cascaded multilevel inverter based on a new basic unit with reduced number of power switche,”IEEE Trans. Ind. Electron., vol. 62, no. 2, pp. 922-929, 2015.
 E. Babaei and S. Laali “Reduction the number of power electronic devices of a cascaded multilevel inverter based on new general topology,” J. Oper. Autom. Power Eng., vol. 2, no. 2, pp. 81-90, 2015.
 Z. Li, P. Wang, Y. Li, F. Gao “A novel single-phase five-level inverter with coupled inductors,” IEEE Trans. Power Electron., vol. 27, no. 6, pp. 2716-2725, 2012.
 M. R. Banaei, A. R. Dehghanzadeh, E. Salary, H. Khounjahan, R. Alizadeh “Z-source-based multilevel inverter with reduction of switches, ” IET Power Electron., vol. 5, no. 3, pp. 385-392, 2011.
 J. Rodríguez, L. Morán, P. Correa, C. Silva “A vector control technique for medium voltage multilevel inverters,” IEEE Trans. . Ind. Electron., vol. 49, no. 4, pp. 882-888, 2002.
 J. Rodriguez, J. S. Lai, F. Z. Peng “Multilevel inverters: A survey of topologies, controls, and applications,” IEEE Trans. on Ind. Electron., vol. 49, no. 4, pp. 724-738, 2002.
 K. El-Naggar, T. H. Abdelhamid “Selective harmonic elimination of new family of multilevel inverters using genetic algorithms,” Energ. Convers. Manage., vol. 49, pp. 89-95, 2008.
 A. R. Dehghanzadeh, V. Behjat “Experimental and 3D finite element analysis of a slotless air-cored axial flux PMSG for wind turbine application,” J. Oper. Autom. Power Eng., vol. 2, no. 2, pp. 121-128, 2015.
 A. Baghbany Oskouei, M. R. Banaei, M. Sabahi “Hybrid PV/wind system with quinary asymmetric inverter without increasing DC-link number,” Ain Shams Eng. J., in press.
 F. Z. Peng “Z-source inverter,” in Proc. of the 37th IAS Annual Meeting, pp. 775-781, 2002.
 M. R. Banaei, A. Baghbany Oskouei, A. R. Dehghanzadeh “Extended switching algorithms based space vector control for five-level quasi-Z-source inverter with coupled inductors,” IET Power Electron., vol. 7, no. 6, pp. 1509-1518, 2014.
 M. S. Pilehvar, M. Mardaneh “Phase-shift control and harmonics elimination for H-bridge Z-source inverter, ” IET Power Electron., vol. 8, no. 4, pp. 618-627, 2015.
 L. Yushan, H. Abu-Rub, G. Baoming “Z-Source/Quasi-Z-Source inverters: derived networks, modulations, controls, and emerging applications to photovoltaic conversion,” IEEE Ind. Electron. Mag., vol. 8, no. 4, pp. 32-44, 2014.
 F. Z. Peng “Z-source inverter,” IEEE Trans. Ind. Appl., vol. 39, no. 2, pp. 504-510, 2003.
 J. Anderson, F. Z. Peng “Four quasi-Z-source inverters,” in Proc. of the PESC, pp. 2743-2749, 2008.
 T. W. Chun, H. H. Lee, H. G. Kim, E. C. Nho “Power control for a PV generation system using a single-phase grid-connected quasi Z-source inverter,” in Proc. of the 8th the International Conference on Power Electronics and ECCE Asia (ICPE & ECCE), pp. 889-893, 2011.
 W. Qian, F. Z. Peng, H. Cha “Trans-Z-source inverters,” IEEE Trans. Power Electron., vol. 26, no. 12, pp. 3453-3463, 2011.
 M. R. Banaei, A. R. Dehghanzadeh, A. Fazel, A. Baghbany Oskouei “Switching algorithm for single Z-source boost multilevel inverter with ability of voltage control,” IET Power Electron., vol. 6, no. 7, pp. 1350-1359, 2013.
 A. Baghbany Oskouei, M. R. Banaei, M. Sabahi “Extended SVM algorithms for multilevel trans-Z-source inverter,” Ain Shams Eng. J., vol.7, no. 1, pp. 265-274..
 A. Baghbany Oskouei, A. R. Dehghanzadeh “Generalized space vector controls for MLZSI,” Ain Shams Eng. J., in press.
 S. J. Park, F. S. Kang, M. H. Lee, C. U. Kim “A new single-phase five-level PWM inverter employing a deadbeat control scheme,” IEEE Trans. Power Electron., vol. 18, no. 18, pp. 831-843, 2003.
 F. Gao, P. C. Loh, F. Blaabjerg, D. M. Vilathgamuwa “Dual Z-source inverter with Three-level reduced common-mode switching,” IEEE Trans. Ind. Appl., vol. 43, no. 6, pp. 1597-1608, 2007.
 M. S. A. Dahidah, G. Konstantinou, V. G. Agelidis “A review of multilevel selective harmonic elimination PWM: formulations, solving algorithms, implementation and applications,” IEEE Trans. Power Electron., vol. 30, no. 8, pp. 4091-4106, 2015.
 Y. Zhang, Y. W. Li, N. R. Zargari, Z. Cheng “Improved selective harmonics elimination scheme with online harmonic compensation for high-power PWM converters,” IEEE Trans. Power Electron., vol. 30, no. 7, pp. 3508-3517, 2015.