Abstract
The Advanced Static VAr Compensator (ASVC) is one of the Flexible A.C. Transmission Systems (FACTS) devices that may be used to support system voltage and help in damping power oscillation. The speed of response of the ASVC is sensitive to the system Short Circuit Level (SCL). The higher the SCL the slower is the speed of response and vice versa. The research presented in this paper investigates the influence of system fault level on the ASVC speed of response. Pulse Width Modulation (PWM) is used to control the ASVC output voltage in order to generate or absorb the required reactive power. The use of a hybrid controller, which is a combination of fuzzy logic and conventional PI controller to implement the PWM parameters is analysed. Three different switching functions are used to perform the transfer between the controllers. The experimental phase of designing a real time controller has been accomplished using the multi-option board ds1103 which has a DSP-PWM generator and many I/O channels. The results obtained show that the hybrid controller with a proper switching mechanism gives better response which is less sensitive to the system changes.
Original language | English |
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Title of host publication | Proceedings of the Universities Power Engineering Conference |
Pages | 507-511 |
Number of pages | 5 |
Publication status | Published - 2002 |
Externally published | Yes |
Event | 37th International Universities' Power Engineering Conference - Staffordshire University, Stafford, United Kingdom Duration: 9 Sept 2002 → 11 Sept 2002 |
Conference
Conference | 37th International Universities' Power Engineering Conference |
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Abbreviated title | UPEC 2002 |
Country/Territory | United Kingdom |
City | Stafford |
Period | 9/09/02 → 11/09/02 |
ASJC Scopus subject areas
- General Engineering
- General Energy