http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Active Control of Combustion Oscillations Based on Desired Dynamic Equation
Yichao Hu,Donghai Li,Min Zhu,Tao Gu 제어로봇시스템학회 2010 제어로봇시스템학회 국제학술대회 논문집 Vol.2010 No.10
Combustion oscillations have become a major issue for propulsion systems and combustion chambers since it can cause structural damages. Active control provides a way of extending the systems’ stable operating range and numerous efforts have been made by engineers and researchers. In this paper, increment type PID controller with real differentiation based on Desired Dynamical Equation (DDE-PID) is applied in the control of combustion oscillations in Rijke tube when exist no disturbance, sinusoidal disturbances and white noise disturbances. Meanwhile, orthogonal experimental design is used to investigate effects of the DDE’s parameters and real differentiation. The experimental results show that DDE-PID is easy to tune and can suppress combustion oscillations effectively. Furthermore, simple structure, good performance robustness, and independent on the model of processes make DDE-PID more suitable for practical applications in suppressing combustion oscillations.
DDE-based PI Controller and its Application to Gasifier Temperature Control
Ya-li Xue,Dong-hai Li,Jing-gong Liu 제어로봇시스템학회 2010 제어로봇시스템학회 국제학술대회 논문집 Vol.2010 No.10
Based on desired dynamic equation (DDE), a kind of PI controller tuning method is discussed in this paper. Using Nyquist stability criterion, the stable region of controller tunable parameter is calculated and compared with traditional PI controller, and then the necessity of introducing a scaling factor L is explained for better control performance. The DDE-based PI tuning method is applied to a gasifier temperature control. The simulation results show its feasibility with lower tuning efforts and better performance.
Jianjun Shu,Gengjin Shi 제어로봇시스템학회 2022 제어로봇시스템학회 국제학술대회 논문집 Vol.2022 No.11
With the grid-connection of renewable energy such as wind and solar, the coal-fired units are required to participate in deep-peak-shaving and respond to the automatic generation control (AGC) command as fast as possible. As a result, energy storage in thermal networks is usually utilized to assist the load regulation of the unit. However, the traditional proportional-Integral (PI) controller is unable to obtain satisfactory performance due to its simple structure, and its tuning is still a challenge for practitioners because of the compromise between parameters. To solve this problem, a reference model (RM)-based controller—desired dynamic equational (DDE)-PI is designed to regulate the load of the unit since it can obtain good tracking performance and readily eliminate the compromise. Simulation results demonstrate that DDE-PI can not only regulate the load with fast and moderate tracking performance but also improve the stability of the supply steam pressure, which shows its promising prospects in the future power industry with the increasing demand to integrate more renewable energy into the grid.