Digital Implementation of Fractional Order PID-Type Controller for Boost DC–DC Converter

Abstract

In this paper, the problem of designing a fractional order PID-type controller is considered for a boost converter. By using the output capacitance and input inductance values this paper characterizes integer order PID-type control gains which will make the closed-loop system transfer function approximately equal to a first order system with a unit DC gain and prescribed time constant τ . Next, a procedure to compute the design parameters of a fractional order PID-type controller is given together with a descritized control algorithm for DSP implementation. By using a floating-point DSP, the proposed control algorithm is implemented in real time. Finally, experimental results are given to show the practical feasibility and effectiveness of the proposed fractional order PID-type control system under several operating conditions. The results illuminate that the proposed controller can be better than a conventional integer order PID-type controller.

NSGA-II-Based Codesign Optimization for Power Conversion and Controller Stages of Interleaved Boost Converters in Electric Vehicle Drivetrains

“…Owning to the occurrence of RHP zero, the IBC suffers a non-minimum phase problem [33]. Due to the problem, it is difficult for a conventional proportional-integral-derivative (PID) controller to perform a desirable performance under dynamic transient load.…”

“…In contrast, the ITAE penalizes the error signal e(t) along with a long duration transient, that leads to the error signal being forced to reduce to zero as soon as possible. Moreover, the ITAE generally produces less overshoots and oscillations compared to other criterion [33]. Therefore, in this paper, the ITAE is selected to evaluate the controller performance.…”

Industrial Grade Adaptive Control Scheme for a Micro-Grid Integrated Dual Active Bridge Driven Battery Storage System

“…Fractional order sliding mode controllers have been proposed for renewable energy applications in [42][43]. Similarly a fractional order PID control scheme is reported in [44] for a boost mode application of a boost converter. Similarly a non integer order fuzzy logic control (FO-FLC) system us analyzed for photo-voltaic (PV) system [45].…”

A transformer‐less single‐switch boost converter with high‐voltage gain and mitigated‐voltage stress applicable for photovoltaic utilizations

“…The efficiency of the converter is limited by the active power switches, diodes, capacitors, and inductors serial resistances and therefore the cascaded boost converters due to their more components numbers are not recommended. 21,22 In some studies, researchers use an inverter to convert this DC voltage to the AC voltage and in the next step, by a transformer an AC voltage with higher magnitude is obtained for AC utilizations and then by a rectifier block, the desired DC voltage is obtained for DC applications. Although these topologies can obtain the high DC gains, these converters are heavier and more expensive and have lower efficiencies based on the high number of the middle blocks and the components especially the transformer.…”

“…Therefore, normally the single‐switched converters based on need only one control block is selected by engineers. The efficiency of the converter is limited by the active power switches, diodes, capacitors, and inductors serial resistances and therefore the cascaded boost converters due to their more components numbers are not recommended 21,22 . In some studies, researchers use an inverter to convert this DC voltage to the AC voltage and in the next step, by a transformer an AC voltage with higher magnitude is obtained for AC utilizations and then by a rectifier block, the desired DC voltage is obtained for DC applications.…”