Linear active disturbance rejection control for oscillatory systems with large time-delays

Wang, Yutong; Tan, Wen; Cui, Wenqing; Han, Wenjie; Guo, Qixin

doi:10.1016/j.jfranklin.2021.06.016

Cited by 15 publications

(9 citation statements)

References 26 publications

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“…In general, the low-order controller often neglects the higher-order dynamics of oscillatory systems. Thus, the result of the control effect is not accurate (Wang et al, 2021). The well-known internal model control has the advantage of using one or two tuning parameters to achieve good control performance to model inaccuracies (Shamsuzzoha and Lee, 2007, p.).…”

Section: Figurementioning

confidence: 99%

Tuning of PIDD2 controllers for oscillatory systems with time delays

Xingqi

Hou²,

Wen³

2023

Front. Control Eng.

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Proportional–integral–derivative (PID) control is a durable control technology that has been widely applied in the process control industry. However, PID controllers cannot achieve satisfactory performance for oscillatory systems with long time delays; thus, high-order controllers like the proportional–integral–double derivative (PIDD2) can be adopted to enhance the control performance. In this paper, we propose a tuning formula for the PIDD2 controller for oscillatory systems with time delays and its practical implementation via an observer bandwidth-based state-space PIDD2. Simulation results show that the state-space PIDD2 controller tuned from the proposed formula trades-off among robustness, time domain performance, and measurement noise attenuation and can arrive at a better control effect than PID for oscillatory systems.

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Section: Figurementioning

confidence: 99%

Tuning of PIDD2 controllers for oscillatory systems with time delays

Xingqi

Hou²,

Wen³

2023

Front. Control Eng.

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“…The LADRC changes the NLSEF control law and ESO into a linear structure, and the TD is abandoned, which reduces the parameters to be adjusted, makes the operation process relatively simple, and makes it possible to use an intelligent algorithm to adjust the parameters [8,9] . The following is a brief analysis of the design of LADRC.…”

Section: Figure 1 Structure Of Ladrc Systemmentioning

confidence: 99%

“…Step 5: Update the particle velocity and position. According to the update rule check whether the limit is exceeded at the same time; The inertia weight 𝑤 is updated according to Equation (8).…”

Section: Ladrc System Based On Optimized Pso Algorithmmentioning

confidence: 99%

Research on active disturbance rejection control of the main steam temperature of supercritical thermal power unit based on improved particle swarm optimization

Hao

Jin

Wang

et al. 2023

J. Phys.: Conf. Ser.

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The stability of the boiler’s main steam temperature is very important for the safe operation of the unit. At present, the mainstream PID control scheme is simple to use and convenient to set, but it cannot accomplish a acceptable ascendancy effect in the face of the main steam temperature control structure; with a long time delay, large inertia. In view of this situation, first of all, this paper introduces the linear active disturbance rejection control (LADRC) technology in a steam temperature control structure. The main loop adopts the linear active disturbance rejection controller and the subloop adopts the P-controller. Then, the particle swarm optimization algorithm is improved and used to modify the parameter of the LADRC, so that the LADRC system adjusted according to the theory can better complete the control task. Finally, a simulation to control the temperature is given, and the results show that the LADRC control system can track quickly and stably; in addition, as against with this traditional PID control strategy, it can achieve strong anti-interference performance.

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“…However, the systems mentioned above require particular attention since their step response exhibits oscillatory behavior. Moreover, for the underdamped system, the conflict between rapidity and overshoot cannot be resolved [16,17]. Therefore, to obtain satisfactory control results, that is, the closed-loop response of the system without or with a relatively small overshoot [18] and the shortest possible stabilization time, we need to research the appropriate controller parameter tuning method for underdamped oscillatory systems.…”

Section: Introduction 1backgroundmentioning

confidence: 99%

Tuning of PID/PIDD2 Controllers for Second-Order Oscillatory Systems with Time Delays

2023

Self Cite

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PID control is the longest history and the most vital basic control mode that has been widely applied in the production process. The oscillatory dynamics of the process have various features, and parameter tuning is complicated. To reduce the complexity of the parameter tuning process and improve the performance of the system, in this research, we propose a new tuning method for the PID/PIDD2 controllers for second-order oscillatory systems with time delays under the constraint of certain robustness. In comparison to existing PID for second-order oscillatory systems with time delays, simulation findings demonstrate that the tuning method of the proposed PID/PIDD2 controllers trades off robustness and disturbance rejection performance.

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Linear active disturbance rejection control for oscillatory systems with large time-delays

Cited by 15 publications

References 26 publications

Tuning of PIDD2 controllers for oscillatory systems with time delays

Tuning of PIDD2 controllers for oscillatory systems with time delays

Research on active disturbance rejection control of the main steam temperature of supercritical thermal power unit based on improved particle swarm optimization

Tuning of PID/PIDD2 Controllers for Second-Order Oscillatory Systems with Time Delays

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