Dr Ranjan Vepa
BTech(IITMadras) MASc(Wat) PhD(Stan)
Research Funding
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Previous Funded Research Projects
Wind and water turbines: Simulation of unsteady aerodynamic forces and theoretical modelling Start: 20-03-2019 / End: 19-03-2022 High fidelity flow-structural dynamics simulations of wind and water turbines will be pursued using advanced computing clusters and complemented by wind tunnel tests. The results will be analysed and used to derive new fast models that will support future development of new renewable energy devices extracting kinetic energy from the wind and water flows. |
Other Research Projects
Vision based Integrated Flight Control and Navigation(Vision based, GPS integrated, autonomous navigation and nonlinear dynamic inversion control of aircraft and ground vehicles) This project is being undertaken by a Doctoral student. Related Publications: i) Petrakou K. and Vepa, R., “Measurement and Nonlinear Estimation of Runway Visual Features for Aircraft Landing Applications,” Paper presented at … |
Unscented H? Estimation of Fuel Cells (with application to hybrid power trains, fuel cell control and fault detection and isolation)In this work a new nonlinear H? estimation algorithm is applied to Proton Exchange Membrane Fuel Cell (PEMFC). It is well known that the traditional H? estimator for a linear system consists of an optimal full state estimate estimator. In this work, the adaptive method is coupled with … |
Structural Health Monitoring: A filter based approachIn this work the notion of a crack detection filter is introduced and algorithms for the design of such filters presented. The concept is based on the design of observers that sensitive or insensitive to the presence of a crack in a structure. It arises from an application of fault … |
Spacecraft Large Attitude Estimation Using a Navigation SensorIn this work we assume that we have measurements of a first difference of a typical satellite navigation carrier phase differential which is a homogeneous quadratic function of the components of the attitude quaternion. We illustrate the determination of large or sustained attitudes using a dedicated unscented Kalman filter. The … |
Satellite Aided Inertial Navigation System with Adaptive MixingIn this research an adaptive unscented Kalman filter based mixing filter is used to develop a low cost satellite aided inertial navigation system. Using just six accelerometers and an altimeter, in addition to a set of typical pseudo-range estimates that can be obtained from a satellite navigation system such GPS … |
Nonlinear Suspension and Tracking Control of Mobile VehiclesIn this work, a new nonlinear H? controller synthesis algorithm is applied to suspension and tracking control of a mobile vehicle. It is well known that the traditional H? controller for a linear system consists of a full-state estimate-based linear feedback control law and an H? state … |
Nonlinear Estimator based Maximum Power Point Tracking of a Wind TurbineIn this research, the design of a nonlinear rotor side controller is developed for a wind turbine generator based on nonlinear, H2 optimal control theory. The objective is to demonstrate the synthesis of a Maximum Power Point Tracking (MPPT) algorithm. In the case of a doubly fed induction generator, it … |
Modelling and Quasi-Linear Control of Compressor Surge and Rotating Stall VibrationsIn this research, an unsteady non-linear and extended version of the Moore-Greitzer model is developed to facilitate the synthesis of a quasilinear stall vibration controller. The controller is synthesised in two steps. The first step defines the equilibrium point and ensures that the desired equilibrium point is stable. In the … |
joint wind energy research project with VIT ChennaiA joint masters educational-research project between Queen Mary and Vellore Institute of Technology (VIT) in Chennai. The masters will research distributed wind energy for urban and rural requirements, integration and energy conversion. The project consortium also consists of Indian Institute of Technology (IIT) Madras India and Deutsche WindGuard India. About 20 UK and India master students will jointly pursue multidisciplinary research to find the requirements of small urban and rural users. Emphasis will be on wind resources, aerodynamic efficiency, control and integration with water pumping for energy storage and irrigation. The industrial partner and other stakeholders are expected to adopt new innovative designs that will also be disseminated through conferences and journals. The master students will go through a joint training programme that includes advanced topics in aerodynamics, mechanics, control, electro-mechanical design and system engineering, while also receiving complementary hands-on computational, analytical and experimental training |
Biomimetic Robotics: Mechanisms and ControlThe focus is of this research is on the electrical interfacing and the transference of control signals. Brian-computer interfacing and issues such as controlling essential tremor as well as cerebellar, dystonic or Parkinsonian tremor are targeted. Lower limb prosthesis, the automatic control of walking with artificial limbs and the use … |
Biomimetic morphing and aerodynamic shape control(Feedback control of aerofoil section shape in subsonic and transonic flow for UAV, airship & turbo-machine applications, integration of computational aeroelasticity (CFD/CSD) with deforming grids and application to active flow control) Our primary interest in the field of biomimetic morphing and aerodynamic shape control based on smart structures [1] is … |