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The Design of A Reference Model-Based Proportional-Integral-Derivative Controller with the Generalized Derivative |
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Gengjin Shi(China Power International Development Ltd., China), Chengbo Dai(Tsinghua University, China), Donghai Li(State Key Lab of Power Systems, Dept. Energy & Power Engineering, T, China), Yanjun Ding(Tsinghua University, China) |
| The proportional-integral (PI) or PI-derivative (PID) controller is still considered as the first choice for the industrial control engineers since it has the simple structure and the reliable control performance. However, the PID controllers are rarely applied to the control system of large-scale industrial processes because the ideal derivative is difficult to implement on the industrial control systems and the derivative may amplify the influence of the measurement noise to the control signal. To solve the aforementioned problem, this paper proposes a generalized derivative for possible field application of the PID controller to industrial processes, especially for a viable alternative fo |
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Control Law Design for the STOVL Aircraft Engine Using Variable Replacement Method |
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Tianmu Jiang, Xiaobo Zhang, Zhanxue Wang, Yongquan Liu, Shiping Ma(Northwestern Polytechnical University, China) |
| The study begins with the development of a component-level simulation model for STOVL aircraft engines. The variable replacement method is then employed, wherein the desired values are assigned to the state variables that require iterative solution, and the corresponding number of control variables are replaced with iterative variables. This establishes a control law design model that is solved iteratively to derive the control law. Numerical simulations are conducted to validate the effectiveness of the proposed method under different input parameters. The results demonstrate that the designed control law achieves stable engine operation and meets the requirements of STOVL operations. |
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Transfer Speed Optimization of Advanced Automated Material Handling Systems in Serial Production Lines |
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Seunghyeon Kim, Kyung-Joon Park, Yongsoon Eun(DGIST, Korea) |
| We solve a transfer speed determinination problem subject to communication resourse constraint in automated material handling systems. Transfer speeds are allowed to be different by individual sections within the production system. This characteristic introduces an opportunity in determining the optimal transfer speed vector for the maximum productivity. The optimal trasfer speed vector yields increased productivity. |
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Numerical Predication of Rotor-Seal System by an Interpolation Database Method |
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Xiang Zhang(Harbin Institute of Technology, China), Yeyin Xu(Xi’an Jiaotong University, China), Guanghe Huo, Renwei Che, Yinghou Jiao(Harbin Institute of Technology, China) |
| Rotor-seal system, as a nonlinear system, is easily found in steam and gas turbines. Previous works on rotor-seal system usually considering a simple seal, traditional labyrinth seal (LS). A classical Muszynska nonlinear seal force model was used in dynamic response calculation for LS. An interpolation database method (IDM) was proposed in this paper to expend the application scope. The IDM can be established from computational fluid dynamic (CFD) results, which can be used in calculating all kinds of fluid seals. Detailed dynamic responses by IDM on different rotation speed incentives were compared with those by Muszynska model. The results show a good consistency between IDM and Muszynska |
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Power Consumption of Linear and Non-linear Filters on Multi-core Architecture By Using AVX and OpenMP |
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Nwe Zin Oo(University of Computer Studies, Myanmar) |
| The general concept of filtering is to modify or enhance the image data by removing noises for smoothing, sharpening, and edge enhancement. This paper proposes the energy consumption of linear and non-linear filters on multi-core architecture by using AVX and OpenMP. This paper focuses on the experiments for the energy consumption of a linear filter (Gaussian filter) and a non-linear filter (median filter). in average, a linear filter is more consumed than a non-linear filter in the case of energy consumption of about 5.1% and 3.9% in Watt and more efficient performance of about 2.5% aand 1.12% in GFLOPS when testing on CPU and GPU respectively, when utilizing AVX and OpenMP in parallel. |
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Event-based LQR Control for Rotary Inverted Pendulum Using Wireless Networked Control System |
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Baitong Thongsakul, Arjin Numsomran(King Mongkut's Institute of Technology Ladkrabang, Thailand), Vittaya Tipsuwanporn(King Mongkut’s Institute of Technology Ladkrabang, Thailand), jutarut Chaoraingern(King Mongkut's Institute of Technology Ladkrabang, Thailand) |
| Wireless communication introduces delays, packet losses, and data uncertainties, which can degrade the control's performance.To address these challenges, this paper presents an event-based Linear Quadratic Regulator (LQR) control approach for a RIPS utilizing a WNCS. To facilitate the control process, a WNCS is employed to transmit data between the RIPS and the controller via WiFi, a wireless network executing in the Raspberry Pi Pico W development board.The experimental results of hardware in the loop (HIL) in the MATLAB/Simulink real-time kernel show that the proposed event-based LQR control strategy can achieve balancing and improve resilience to network-induced disturbances. |
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