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| Content Provider | IET Digital Library |
|---|---|
| Author | Liu, Huakun Xie, Xiaorong Wang, Liang Han, Yingduo |
| Abstract | Torsional damping controllers, such as supplementary excitation damping controllers (SEDCs), are widely used to stabilise subsynchronous resonance (SSR) induced by torsional interactions (TIs) between turbo-generators and series-compensated power systems. However, because of the changeable operating situations of a power system, it is a great challenge to design them to guarantee torsional stability under all possible operating conditions. This study proposes a global optimal control-design procedure for tuning SEDCs to accommodate the variation of system conditions. Considering TI is a small-signal stability issue, the non-linear power system is converted into a family of linear parameter varying models and the parameter-tuning task for multiple SEDCs is formulated into a multi-model constrained non-linear optimisation problem. A global optimisation procedure based on genetic algorithm and simulated annealing is designed to efficiently solve this problem and obtain a set of robust or several sets of gain-scheduling SEDCs. The proposed method is applied to a multi-machine series-compensated power system. The results of both eigenvalue analysis and time-domain simulation have fully demonstrated the effectiveness of the optimised SEDCs in stabilising SSR under all possible operating conditions. |
| Starting Page | 1652 |
| Ending Page | 1661 |
| Page Count | 10 |
| ISSN | 17518687 |
| Volume Number | 9 |
| e-ISSN | 17518695 |
| Issue Number | Issue 13, Oct (2015) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-gtd/9/13 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2014.0824 |
| Journal | IET Generation, Transmission & Distribution |
| Publisher Date | 2015-06-04 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Control of Electric Power System Control System Analysis Control System Synthesis Damping Eigen Values And Eigen Function Eigenvalue Analysis Gain Scheduling System Genetic Algorithm Global Optimal Control-design Procedure Linear Parameter Varying Model Linear Subsynchronous Damping Controller Mathematical Analysis Multimachine Series-compensated Power System Multimodel Constrained Nonlinear Optimisation Problem Nonlinear Power System Nonlinear Programming Optimal Control Optimisation Technique Parameter-tuning Task Power System Control Power System Economics Power System Managemen Power System Operation Power System Stability SEDC Series Compensated Power System Simulated Annealing Small-signal Stability Issue Stabilise Subsynchronous Resonance Stability in Control Theory Static VAr Compensators Supplementary Excitation Damping Controller Synthesis Method Time Domain Analysis Time-domain Simulation Torsional Damping Controller Torsional Interaction Stability Turbo-generator |
| Content Type | Text |
| Resource Type | Article |
| Subject | Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering |
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