M. Tariq Iqbal

Learn More
This work presents a reliability analysis of the Power Conditioning System (PCS) for both the Permanent Magnet Generator (PMG) and Wound Rotor Induction Generator (WRIG)-based small wind turbine generation systems. The PCS for grid connection of the PMG-based system requires a rectifier, boost converter and a grid-tie inverter, while the WRIG-based system(More)
Fuel cells (FC) are power sources that convert electrochemical energy into electrical energy in a clean and efficient manner. FC technology presents one of the most promising solutions to reduce fossil fuel consumption. FC simulators are expected to play a key role in the development of FC systems due to their low cost and flexibility. This paper presents(More)
An isolated small wind turbine emulator based on a separately excited DC motor is developed to emulate and evaluate the performance of a small wind turbine using different control strategies. The test rig consists of a 3HP separately excited DC motor coupled to a synchronous generator. A dump load is connected to the generator through a buck-boost converter(More)
This paper presents a comprehensive conversion loss analysis of the Power Conditioning System (PCS) for a grid connected Permanent Magnet Generator (PMG) and a Wound Rotor Induction Generator (WRIG) based small wind turbine system. The main focus of the loss analysis is the conduction and switching losses in the semiconductor devices and PCS. The analysis(More)
Wind is one of the cheapest and cleanest sources of energy. However, large and frequent fluctuations in wind intensity and directions can cause serious problems in harvesting this energy. Wind turbines are subjected to many unexpected environmental loads, which can be catastrophic in nature for the wind turbine system. Like any other industrial equipment(More)
This paper presents an embedded frequency response analyzer (EFRA) for Fuel Cells (FC) based on a robust measurement technique with simple implementation. Frequency response analysis technique provides valuable information of different electrochemical processes that occur inside the FC. The measurement system is implemented on a low-cost Digital Signal(More)
River current turbines are electromechanical energy converters that harness kinetic energy of a stream of flowing river water to generate electricity. Research in this domain is limited and various concepts are emerging only recently. In this paper, an extensive technology survey and comparison of various system options are discussed in order to formulate a(More)
Microwave repeaters are one of the main energy consumers in the telecommunication industry. These repeaters are powered using diesel generators and batteries, particularly when they are located in remote areas. Diesel generators require higher maintenance cost and for remote sites this cost will be more due to the added oil transportation cost. The aim of(More)
An efficiency comparison of 2- and 3-level inverter based Power Conditioning Systems (PCSs) is presented for a grid-connected Solid Oxide Fuel Cell (SOFC) application. The power conditioning systems examined are: an intermediate boost converter integrated with a 2- and 3-level inverter. The aim is to determine which power conditioning system yields the(More)
One of the main concerns of hybrid power system is the fluctuation of voltage and frequency of the system due to variation in the load and renewable power. A number of different types of energy storage techniques, which are theoretically and operationally available, have been proposed to remedy such fluctuations. One long-term storage option is compressed(More)