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Implementation of PID Autotuning Procedure Based on Doublet-Pulse Method in PLC Controller

Awtoniuk Michał, Sałat Robert, Worwa Miłosz, Reshetiuk Volodymyr

Advances in Science and Technology. Research Journal

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2024

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Vol. 18, no 1

89--97

EN

The paper describes the implementation of a PI controller autotuning procedure based on the doublet-pulse method. The doublet-pulse method is used as a tool to identify the control object. Its main advantage is its simplicity, requiring only two parameters to be declared, i.e., the amplitude and duration of the two step signals. We combined the Doublet-Pulse method with the Approximate M-constrained Integral Gain Optimisation tuning rules and implemented this combination as a stand-alone autotuning procedure in Siemens S7-1200 PLC controller. The procedure was tested for three types of simulated plant models. The simulated models were diverse in terms of dynamics, as we used lag-dominated, balanced, and delay-dominated models. We compared the doublet-pulse method with the classical identification method in the form of step response, i.e. method of moments. We conducted tests for three scenarios, i.e., a step change in the set point, set point trajectory tracking and load disturbances. To assess the control quality, we used integral index IAE. The described method is universal and can also be implemented in controllers from other manufacturers.

2

Amelioration of ship control with improved dynamic response of motor controller

Hasan Shameem, Sarowar Golam

Przegląd Elektrotechniczny

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2021

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R. 97, nr 4

32--40

EN

During a sea voyage, it is significantly important to fix the speed and angle of movement of the ship precisely depending on the distance of the destination and also in icebreaking purpose. So, enhancement of transient response of commutator motor used in the ship is essential. Due to their better reliabilities as well as low costing, nowadays, Direct Current (commutator) motors are utilized in icebreaking ships, in industrial near and far applications, robotic manipulators, and also for home appliances. Thus, it is vital to introduce a suitable controller for managing the speed and transient behavior of a Direct Current. In this study, for the enhancement of dynamic response, various DC commutator motor controllers have been simulated. At first, the DC commutator motor parameters are selected and four optimized controllers: Ziegler-Nichols (ZN)-based conventional Proportional Integral Derivative (PID) controller, Genetic Algorithm (GA)-based PID controller (GA-PID), as well as Flower Pollination Algorithm (FPA)-based PID (FPA-PID) are designed and simulated to manage the angular speed together with dynamic response of shaft of a Direct Current commutator motor actuator. The electric actuator response for every controller is ascertained as well as compared after applying step input that is necessary for the simulation of transient response of the motor. The performance analysis shows that the FPA-PID controller is adequate for the steering task in the ship, which requires precision and associated with transient response properties.

PL

W artykule analizowano różne metody sterowania silnikiem komutacyjnym DC. Szczególną uwagę poświęcono sterownikom PID , PID wspomaganym algorytmami genetycznymi oraz Flower Pollination FPA-PID. . Analizowano możliwości sterowania prędkością przy odpowiednich parametrach dynamicznych. (odpowiedź na wymuszenie skokowe). Stwierdzono, że najlepsze właściwości do sterowani silnikiem statku ma algorytm FPA-PID.

3

Regulatory kotłów węglowych z palnikiem automatycznym (cz. 1)

Zawistowski J., Janiszewski S.

Rynek Instalacyjny

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2009

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Nr 10

48-50

PL

Funkcją elektronicznych sterowników programowalnych w kotłach z palnikiem automatycznym, zwanych potocznie regulatorami kotła, jest dostosowanie chwilowej mocy efektywnej kotła do chwilowego zapotrzebowania (odbioru) ciepła przez ogrzewane obiekty. W artykule omówiono właściwości procesu spalania oraz sterowanie pracą kotła za pomocą sterowników dwustanowych oraz sterowników PID.