Mohammad Atif Siddiqui

Integral University · Department of Electrical and Engineering

This study presents online PI/PID controller tuning rules for cascade control configuration. The necessary process data are determined with the help of a simple setpoint experiment in a single closed-loop mode with the proportional controller only. The obtained process data is recorded in terms of the overshoot, controller gain, peak time, and rela...

A substantial amount of the world’s annual CO 2 emissions are attributable to the continued consumption of electricity from the grid that is generated from burning fossil fuels. Renewable energy sources could strengthen grid reliability and lessen their effect on the environment, especially in high-demand regions prone to power failures. Investigat...

This study was conducted to see whether it would be feasible to install a PV system in a subtropical Indian region to meet the load requirement of any educational premise which is operational only in a day time. This system assesses the simulated effectiveness of a grid-tied 100 kW SPV plant in which total 400 solar modules are used to meet the req...

Total Harmonic Distortion (THD) is higher in conventional inverters, as are switching losses and efficiency. As a result, multilevel inverters have evolved to address these issues, and they are now widely employed in power applications and renewable energy systems. These inverters create a smooth sinusoidal waveform at the load by using sinusoidal...

The present paper focuses on solar PV system design and includes a cost analysis based study of a 25kW off-grid photovoltaic (PV) system at Integral University, Lucknow, India (28.5616N, 77.2802E). The cost of the electricity generated by the 25kW PV system has been calculated on a weekly and monthly basis. Additionally, the 25kW PV systems offer a...

In this work, an approach is suggested to control the stable processes with diverse dynamics in the cascade control structure (CCS). The method is based on placing the pole at the desired location to improve the transient response and model matching in the frequency to realize the PID controller and to improve the steady-state response. The method...

In this work, a sliding mode controller (SLMC) design approach has been proposed based on second order plus dead time process (SOPDTP). The SOPDTP model of the industrial processes have been obtained by performing a simple closed-loop set-point experiment (CLSPE) having a proportional controller only. The operating procedure of SLMC comprises of co...

This work proposes a sliding mode controller (SMCL) design approach based on direct synthesis method for non-linear continuous stirred tank reactor (NCSTR). The SMCL parameters are derived based on (i) NCSTR model obtained by performing the closed loop test on the nonlinear differential equations of the NCSTR, (ii) direct synthesis approach and (ii...

Purpose This paper aims to present an efficient and simplified proportional-integral/proportional-integral and derivative controller design method for the higher-order stable and integrating processes with time delay in the cascade control structure (CCS). Design/methodology/approach Two approaches based on model matching in the frequency domain h...

In this work, a method is proposed to design the controller of the cascade control structure (CCS) for stable processes with diverse dynamics. The method is based on placing the pole at the desired location to improve the transient response and model matching in the frequency to realize the PID controller and to improve the steady-state response. T...

This study was conducted to see whether it would be feasible to install a PV system in a subtropical Indian region to meet the load requirement of any educational premise which is operational only in a day time. This system assesses the simulated effectiveness of a grid-tied 100 kW SPV plant in which total 400 solar modules are used to meet the req...

This study presents the control of the nonlinear model of a continuous stirred tank reactor (CSTR) through different control structures. The structures considered are single feedback configuration (SFC), cascade control configuration (CCC) and sliding mode control (SMC). To design the controllers, the dynamic behaviour of CSTR with a recirculating...

In this study, an approach to tune the Proportional Integral Derivative (PID) controller has been proposed to achieve enhance regulatory response. The proposed approach depend on frequency response matching and root locus technique. The method depend upon the solution of the algebraic equation which yield integral gain and derivative gain in term o...

In this paper, a simple method to design the cascade controllers for the variety of stable processes have been proposed. The main advantage of the proposed method is that it is applied directly on the systems i.e. order reduction of the higher-order systems is not required. Furthermore, the proposed method is also exempted from the approximation of...

This paper presents a controller design method for the open-loop unstable process in the primary loop and the open-loop unstable, integrating and stable processes in the secondary loop of the simple cascade control configuration. The controller of the secondary loop and the primary loop is designed through a direct synthesis (DS) approach in the fr...

This article presents a unified approach of controller design in cascade control structure (CCS) for unstable, integrating and stable processes with dead-time to achieve enhanced load disturbance rejection. The design of inner and outer loop controllers in CCS is based, partially on the direct synthesis approach and partially on the pole placement...

A new approach is proposed to design the sliding mode (SM) controller for the unstable second-order plus dead-time (SOPDT) processes. The sliding mode control consists of two control laws ie continuous control law and discontinuous control law. The continuous control law parameters have been derived in terms of unstable SOPDT process parameters usi...

This paper addresses the design of the proportional–integral–derivative plus filter controller for the integrating process in the parallel control structure (PCS). In PCS, the servo and regulatory responses are decoupled to give more flexibility in tuning the servo and regulatory controllers, independently. In this article, the controllers of PCS a...

In this paper, a model-free PID controller design method has been proposed using simple closed loop set-point experiments. The unit step closed loop test is performed in a classical unity feedback configuration with the proportional control gain 0 c K only. For most of the processes 0 c K is chosen such that overshoot may be in between 10% to 50% o...

In this paper, a model-free PID controller design method has been proposed using simple closed loop set-point experiments. The unit step closed loop test is performed in a classical unity feedback configuration with the proportional control gain Kc0 only. For most of the processes Kc0 is chosen such that overshoot may be in between 10% to 50% of st...