Browsing by Author "Saavedra Ordóñez, Harold"

Now showing items 1-12 of 12

    • Analysis and design of fault tolerant axial flux permanent magnet synchronous motors 

      Saavedra Ordóñez, Harold (Universitat Politècnica de Catalunya, 2015-02-05)
      Doctoral thesis
      Open Access
      Electric vehicles (EVs) are attractive comparted to internal combustion engine powered vehicles due to several benefits, including low emissions, higher efficiency, less maintenance costs, stronger acceleration or lower ...

    • Analysis of demagnetization faults in surface-mounted permanent magnet synchronous motors with symmetric windings 

      Urresty Betancourt, Julio César; Riba Ruiz, Jordi-Roger; Saavedra Ordóñez, Harold; Romeral Martínez, José Luis (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
      Conference report
      Restricted access - publisher's policy
      This paper analyzes a surface-mounted permanent magnet synchronous motor with symmetric winding configuration running under demagnetization fault. The analysis is based on 2D FEM simulations which includes rotor magnet ...

    • Analysis of demagnetization faults in surface-mounted permanent magnet synchronous with inter-turns and phase-to-ground short-circuits 

      Urresty Betancourt, Julio César; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis; Saavedra Ordóñez, Harold (2012)
      Conference report
      Restricted access - publisher's policy
      Demagnetization faults are troublesome in permanent magnet synchronous motors since they may greatly reduce their performance and efficiency. Additionally, the temperature of the magnets deeply influences the remanent flux ...

    • Detection of inter-turn faults in five-phase permanent magnet synchronous motors 

      Saavedra Ordóñez, Harold; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis (2014-11-27)
      Article
      Open Access
      Five-phase permanent magnet synchronous motors (PMSMs) have inherent fault-tolerant capabilities. This paper analyzes the detection of inter-turn short circuit faults in five-phase PMSMs in their early stage, i.e. with ...

    • Detection of inter-turns short circuits in permanent magnet synchronous motors operating under transient conditions by means of the zero sequence voltage 

      Urresty Betancourt, Julio César; Riba Ruiz, Jordi-Roger; Saavedra Ordóñez, Harold; Romeral Martínez, José Luis (2011)
      Conference report
      Open Access
      This work proposes the zero sequence voltage component (ZSVC) of the stator three-phase voltages as a method for detecting winding inter-turns short circuits in permanent magnet synchronous motors PMSM operating under ...

    • Detection of interturn faults in PMSMs with different winding configuration 

      Saavedra Ordóñez, Harold; Urresty Betancourt, Julio César; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis (2014-03-03)
      Article
      Restricted access - publisher's policy
      Interturn faults in permanent magnet synchronous motors (PMSMs) may develop fast into more severe faults such as coil-to-coil, phase-to-phase and phase-to-ground short circuits. These faults are very destructive and may ...

    • Efficiency evaluation of five-phase outer- rotor fault-tolerant BLDC drives under healthy and open-circuit faulty conditions 

      Salehi Arashloo Arashloo, Ramin; Salehifar, Mehdi; Saavedra Ordóñez, Harold; Romeral Martínez, José Luis (2014)
      Article
      Open Access
      Fault tolerant motor drives are an interesting subject for many applications such as automotive industries and wind power generation. Among different configurations of these systems, five-phase BLDC drives are gaining more ...

    • Inter-turn fault detection in five-phase PMSMs. Effects of the fault severity 

      Saavedra Ordóñez, Harold; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference report
      Restricted access - publisher's policy
      This paper deals with the effects of inter-turn short circuit faults in five-phase permanent magnet synchronous motors (PMSMs). For this purpose a finiteelements model (FEM) of a faulty machine with 1, 2 and 4 inter-turns ...

    • Magnet shape influence on the performance of AFPMM in a torus configuration 

      Saavedra Ordóñez, Harold; Riba Ruiz, Jordi-Roger; Hernández Guiteras, Joan; Romeral Martínez, José Luis (2013)
      Conference report
      Restricted access - publisher's policy
      The axial flux permanent magnet machine (AFPMM)is being increasingly demanded for special applications, particularly for transportation systems and concretely for inwheel applications. In this paper the effect of the magnets ...

    • Magnet shape influence on the performance of AFPMM with demagnetization 

      Saavedra Ordóñez, Harold; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis (IEEE Industrial Electronics Society, 2013)
      Conference report
      Open Access
      In this paper the effect of the magnets shape on the AFPMM performance under a demagnetization fault has been analyzed by means of 3D-FEM simulations. Demagnetization faults in permanent magnet synchronous motors (PMSMs) ...

    • Multi-objective optimal design of a five-phase fault-tolerant axial flux PM motor 

      Saavedra Ordóñez, Harold; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis (2015)
      Article
      Open Access
      Electric motors used for traction purposes in electric vehicles (EVs) must meet several requirements, including high efficiency, high power density and faulttolerance. Among them, permanent magnet synchronous motors (PMSMs) ...

    • Optimal design of a three-phase AFPM for in-wheel electrical traction 

      Saavedra Ordóñez, Harold; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis (2014)
      Conference lecture
      Open Access
      Sinusoidally fed permanent magnet synchronous motors (PMSM) fulfill the special features required for traction motors to be applied in electric vehicles (EV). Among them, axial flux permanent magnet (AFPM) synchronous ...