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| PMU based PSS and SVC fuzzy controller design for angular stability analysis | |
| Ahmed;Sheikh | |
| 出版年 | 2015 |
| 学位授予单位 | Kansas State University |
| 英文摘要 | Master of Science Department of Electrical and Computer Engineering Shelli Starrett Variability in power systems is increasing due to pushing the system to limits for economic purposes, the inclusion of new energy sources like wind turbines and photovoltaic, and the introduction of new types of loads such as electric vehicle chargers. In this new environment, system monitoring and control must keep pace to insure system stability and reliability on a wide area scale. Phasor measurement unit technology implementation is growing and can be used to provide input signals to new types of control. Fuzzy logic based power system stabilizer (PSS) controllers have also been shown effective in various studies. This thesis considers several choices of input signals, composed assuming phasor measurement availability, for fuzzy logic-based controllers. The purpose of the controller is to damp power systems’ low frequency oscillations. Nonlinear transient simulation results for a 4-machine two-area system and 50 machine system are used to compare the effects of input choice and controller type on damping of system oscillations. Reactive power in the system affects voltage, which in turn affects system damping and dynamic stability. System stability and damping can be enhanced by deploying SVC controllers properly. Different types of power system variables play critical role to damp power swings using SVC controller. A fuzzy logic based static var compensator (SVC) was used near a generator to damp these electromechanical oscillations using different PMU-acquired inputs. The goal was again improve dynamic stability and damping performance of the system at local and global level. Nonlinear simulations were run to compare the damping performance of different inputs on the 50 machine system. |
| 英文关键词 | Power System Stabilizer Phasor Measurement Units Fuzzy Logic Control Static Var Compensator Wide Area Control Electrical Engineering (0544) |
| 语种 | 英语 |
| URL | http://hdl.handle.net/2097/20547 |
| 来源机构 | Kansas State University |
| 资源类型 | 学位论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/249317 |
| 推荐引用方式 GB/T 7714 | Ahmed;Sheikh. PMU based PSS and SVC fuzzy controller design for angular stability analysis[D]. Kansas State University,2015. |
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