PWM-controlled series compensation with low harmonic distortion
UNSPECIFIED. (1997) PWM-controlled series compensation with low harmonic distortion. IEE PROCEEDINGS-GENERATION TRANSMISSION AND DISTRIBUTION, 144 (6). pp. 555-563. ISSN 1350-2360Full text not available from this repository.
The paper describes a pulse width modulation (PWM)-controlled series compensator with continuously variable reactance, employing simple PWM duty ratio control. Each phase of the compensator comprises a switched reactor and parallel capacitor. The duty ratio control gives a wide range of capacitive and inductive compensation. The harmonics created by the switched reactor have been analysed. The switched reactor and parallel capacitor have been simulated with a range of switching frequencies and duty ratios. With appropriate choice of capacitor and reactor, a scaled-down experimental model of the compensator has been simulated and constructed. The harmonics have been found to be small even with the switching frequency of the controlled turn-off switches as low as 400 Hz. A large step change in duty ratio from maximum capacitive compensation to inductive compensation shows the rapid dynamic response of the compensator with a fast settling time. This demonstrates that the proposed compensator should be considered as another useful FACTS controller for series compensation.
|Item Type:||Journal Article|
|Subjects:||T Technology > TK Electrical engineering. Electronics Nuclear engineering|
|Journal or Publication Title:||IEE PROCEEDINGS-GENERATION TRANSMISSION AND DISTRIBUTION|
|Publisher:||IEE-INST ELEC ENG|
|Number of Pages:||9|
|Page Range:||pp. 555-563|
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