Patel, R, Bhatti, T S, Kothari, D P
Fast valving and braking resistors, individually, are an effective means of improving the stability of a power system under large and sudden disturbances. The fast valving schemes, like other...
On some of the design aspects of wind energy conversion systems (2002)
Bansal, R C, Bhatti, T S, Kothari, D P
In the overall process of utilizing wind power, two essential components of technical data, i.e. one related to the engineering or performance characteristics of commercially available wind turbine...
Fast valving scheme using parallel valves for transient stability improvement (1999)
Hassan, F F, Balasubramanian, R, Bhatti, T S
A new fast valving scheme of steam turbines using two parallel valves for improving the transient stability of a power system is proposed. The influence of the actuation time parameters of a...
Load-frequency control of isolated wind-diesel microhydro hybrid power system(WDMHPS) (1997)
We examine load-frequency control of isolated WDMHPS provided with conventional proportional-plus-integral controllers. The parameters of the controller are optimised for system performance with step...
Load frequency control of isolated wind diesel hybrid power systems (1997)
In this paper, a load frequency controller is designed for isolated wind Diesel hybrid power systems, and its effect on the transient performance of the system is evaluated. The modelling of the...
Design for fabrication of a d.c. chopper for energy conservation in d.c. drives (1992)
Tripathy, S C, D Kumar, Balasubramanian, R, Bhatti, T S
A thyristor chopper for speed control of d.c. motors has been described and designed. The chopper consists of thyristor circuits which convert power between a constant voltage d.c. input and a...
The power coefficient of windmills in ideal conditions
Shikha Singh, T.S. Bhatti, D.P. Kothari
The windmill efficiency, also designated as the power coefficient, is defined as the ratio of the actual power output to the power present in the free stream of a fluid flowing through the same...
A novel technique proposed for automatic control of small hydro power plants
Himani Goyal, T.S. Bhatti, D.P. Kothari
A new scheme is proposed for the speed control of hydro turbines. Power can be controlled by controlling the rotary motion of the spear valve or linear motion of the sluice gate. In this paper,...
Reactive power control of wind-diesel-micro-hydro hybrid power systems using matlab/simulink
R.C. Bansal, T.S. Bhatti, D.P. Kothari, S. Bhat
This paper presents reactive power control of isolated wind-diesel-micro-hydro hybrid power system for realistic load disturbance using matlab/simulink. The mathematical model of the system based on...
The power coefficient of windmills in ideal conditions
Shikha Singh, T.S. Bhatti, D.P. Kothari
The windmill efficiency, also designated as the power coefficient, is defined as the ratio of the actual power output to the power present in the free stream of a fluid flowing through the same...
A novel technique proposed for automatic control of small hydro power plants
Himani Goyal, T.S. Bhatti, D.P. Kothari
A new scheme is proposed for the speed control of hydro turbines. Power can be controlled by controlling the rotary motion of the spear valve or linear motion of the sluice gate. In this paper,...
Reactive power control of wind-diesel-micro-hydro hybrid power systems using matlab/simulink
R.C. Bansal, T.S. Bhatti, D.P. Kothari, S. Bhat
This paper presents reactive power control of isolated wind-diesel-micro-hydro hybrid power system for realistic load disturbance using matlab/simulink. The mathematical model of the system based on...
The assessment of surgical skills and a simple knot-tying exercise.
Tytherleigh, M. G., Bhatti, T. S., Watkins, R. M., Wilkins, D. C.
Basic surgical skills courses are mandatory for all surgical trainees taking the MRCS examination. An important aspect of these courses is the level of practical skill achieved by junior surgeons...