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This paper aims at developing a Phase Locked Loop (PLL) based grid integration of wind driven three phase induction (3PIG) generator. The dynamic model of wind driven induction generator along necessary power converters is evolved in Matlab/Simulink. The system functionality is analyzed for different wind velocities. The synchronous reference frame PLL (dq/SRF PLL) synchronizes the grid and the system...
High power applications require Multi-phase induction machines, considered viable contenders to the three phase machines operating as generator. An endeavor is made to develop a dynamic model of seven-phase induction generator and explore the generator functionality at no-load and different loading conditions. This paper analyzes the performance of seven-phase induction machine for various operating...
This paper analyzes the performance of three different topologies namely parallel, serial and variable-structure circuit of switched-diode-capacitor voltage accumulator (SDCVA). The converters are modelled in MATLAB/Simulink environment. Simulation is carried out to investigate the performance of the converters and the results are discussed. The optimum topology is identified based on the voltage...
This paper investigates Five Phase Induction Generator (FPIG) performance. A dynamic model of FPIG is developed using d-q equivalent circuit in matlab/simulink software. The generator is operated in self excited mode. In this paper, the performance of FPIG is evaluated under varying load condition. The generated stator voltage, current and generated torque waveforms are presented. The effects of variation...
This paper aims at presenting a comprehensive model of Multiphase Induction Generator (MPIG) and to analyze its performance for different phase numbers n. MPIG best suits high power generation with numerous advantages over traditional three phase generators. By increasing the phase number, the power could be increased in the same frame with reduced per phase current and same voltage per phase. Development...
A three-port converter (TPC) with the topology of a full-bridge converter (FBC) is presented for hybrid energy applications. It has merits of reduced number of switches, simpler topology and control and single stage power conversion. An input port with photo-voltaic (PV) source, a storage port with battery and an output port with a dc load is considered in this paper. The input port and the output...
This paper proposes the new quasi impedance source inverter with increased boosting capability for solar water pumping system. The extended self boost quasi impedance source inverter has the advantage of increased boosting potential compared to the Z-source inverter and is expandable. This topology uses the same modulation technique that is adopted for the original ZSI. The proposed self boost inverter...
This paper presents the novel PWM technique for nth harmonic injection for n-phase VSIs. Multi-phase voltage source inverters are dominantly used to supply the multi-phase drives which are used for high power applications. Multi-phase induction motor drive possess several advantages over conventional three-phase drive, such as reduced current per phase, increased power in the same frame and high torque...
This paper presents an indirect field oriented control (IFOC) of five-phase induction motor drive fed by a five-phase inverter using mat lab/simulink. IFOC is an established control method for high dynamic performance AC drives and the control is simple and highly reliable. Three phase induction motors have many well recognized advantages however their applications are limited to lower end of the...
This paper presents the performance investigation of FPGA implementation of SVPWM technique for asymmetrical six-phase voltage source inverter (VSI). Six-phase voltage source inverters are dominantly used to supply the six-phase drives which are used for high power applications. It is necessary to develop appropriate space vectors for the inverters to provide required output voltages to a six phase...
This paper presents the development of three different generalized PWM schemes for a n-phase voltage source inverter (VSI) in matlab/simulink. Multiphase (n-phase) voltage source inverters are dominantly used to supply the multi-phase drives which are used for high power applications. It is necessary to develop suitable switching schemes for the inverters to provide required output voltages to a multiphase...
This paper proposes a large scale wind energy conversion system comprising a direct driven PMSG connected to the grid through a power electronic interface. The variable voltage variable frequency output from the wind generator is rectified, boosted and converted in to a fixed voltage fixed frequency output. The boost chopper maintains a constant DC at the inverter terminals. The modulation index of...
This paper presents a generalized model of multi-phase induction motor drive using matlab/simulink. Multiphase induction motor (more than three phases) drives possess several advantages over conventional three-phase drives, such as lower torque pulsation, higher torque density, fault tolerance, stability, high efficiency and lower current ripple. When the number of phases increases, it is also possible...
This paper presents a novel inverter named nine switch inverter for independent control of two AC motors. The inverter has nine switching devices. The proposed inverter is composed of two conventional inverters with three common switches. A nine switch inverter can achieve the independent control of two ac motors by controlling the MI of the inverters. The simulation model of the inverter is developed...
This paper focuses on individual controller designs for an isolated wind electric generator supplying power to heating and voltage sensitive loads. The wind driven self-excited induction generator (SEIG) and other network components are modeled and simulated using Matlab/Simulink. The variable voltage and frequency of a generator is first rectified and the DC power is then transferred to the load...
Cascaded Multilevel inverter for photovoltaic generating system is presented in this paper. In photovoltaic generating (PV) system, it is normal practice to use an inverter-transformer combination to convert the low voltage DC power output of the PV modules into AC power of required voltage and frequency. In this paper, an attempt has been made to study the performance of PV system with multilevel...
This paper aims at the modeling and power flow analysis of a stand-alone hybrid generating system (SAHGS) comprising of wind and photovoltaic systems. The wind driven self-excited induction generator (SEIG), photovoltaic array and other network components are modeled and simulated using Matlab/Simulink. The variable voltage and frequency of a generator is first rectified and controlled by a DC/DC...
This paper analyses the electrodynamic braking (EDB) performance of a grid connected wind energy conversion system, during a grid loss. A dual pole induction generator driven by a fixed speed wind turbine is considered for the present study. The modeling of the wind turbine-induction generator unit, with the excitation capacitor C and braking resistor R, at the generator terminals is presented. Through...
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