![References
[1]. A. Arun Kumar and P. Preetha “Comparison of Voltage Stability using SSSC and TCSC controller”
International conference on Electronics and communication systems.
[2]. S. Meikandasivam, R. Kumar Nema and S. Kumar Jain, “Selection of TCSC Parameters: Capacitor
and Inductor”, Conference on Power Electronics (IICPE), India International, (2010), January 28-30 [3].
“Power quality improvement by SSSC.” IEEE Conference may 2017
[4].” Simulation of three-level 24-pulse voltage source converters-based static synchronous compensator
for reactive power control” www.ietdl.org may 2014.
[5]. “Application of Static Synchronous Series Compensators in Ferranti Effect” IEEE conference June
2016.
[6]. “On Control of Static Synchronous Series Compensator for SSR Mitigation” IEEE conference
published on June 2007.
[7]. “Novel Controllers for the 48-Pulse VSC STATCOM and SSSC for Voltage Regulation and
Reactive Power Compensation” IEEE transaction NOV 2005.
[7]. “Reactive power compensation by Static Synchronous Series Compensator” IEEE conference
23 September 2016.
[8] “Enhancement of voltage stability in transmission system using SSSC” IEEE conference march
2014.
[9]. “Static synchronous series compensator: a solid-state approach to the series compensation of
transmission lines” IEEE transaction January 1997.
[10]. Hingorani NG, Gyugyi L (1999) Understanding FACTS. IEEE Press, New York](https://image.slidesharecdn.com/tcsc-180210165936/85/Voltage-stability-using-Series-FACTS-devices-23-320.jpg)
Voltage stability using Series FACTS devices
- 1. Enhancement of voltage stability by using series FACTS device By S.L.D.Saisree
- 2. Table of contents Voltage stability FACTS Classification of FACTS devices Series compensation TCSC FSC VS TCSC SSSC Conclusion References
- 3. Voltage stability “Voltage stability refer to the ability of power system to maintain steady voltages at all buses in the system after being subjected to a disturbance from a given operating point”.
- 4. FACTS • FACTS devices are defined as the power electronics based system and other static equipment that provide control on one or more AC transmission system parameters. • Increasing/diminishing the power flow in the specified transmission line.
- 5. FACTS CONTROLLERS Based on the type of connection the FACTS controllers are classified as
- 6. FACTS CONTROLLERS Depending on the power electronic device used in the control, the FACTS controllers are classified as
- 7. Why FACTS device Reduction of losses. Enhancement of power transfer. Controlling the system parameters. To avoid congestion problems, SSR. To improvement the transient stability limit. Voltage stability. Managing cascaded conditions.
- 8. Disadvantages of conventional devices: • Tap changing transformer. • Slow response. • Less reliable. • More time consuming. • Does not provide flexibility.
- 9. Controllability of power system Figure: power angle curve Control parameters are V, X, angle.
- 10. Series compensation Variable impedance . Injects voltage is in quadrature with line current. Control the active power flow. Reduces the losses in the line.
- 12. Figure: Before compensation Figure : After compensation
- 14. TCSC Thyristor controlled Series capacitor • Power transfer, transient stability, power oscillations damping, voltage support. • It allow rapid change in the transmission line impedance. • The fixed capacitor is connected in parallel to the TCR.
- 15. Optimal selection of L,C parameters • Mitigation of SSR . • Both inductive and capacitive mode of compensation is possible. • ω= √ (XL/XC) factor should be in b/w 2.2 to 2.7 . • Based on Kse.
- 17. In 2002 China installed TCSC,500KV 381Km
- 18. TCSC in India • Rourkela – Raipur line two TCSC’s are installed in India of 40% degree of compensation. • 400KV,412Km AC transmission line.
- 19. FSC TCSC • MVAR Rating required is more • Rated voltage is more(for capacitor bank). • Minimum compensation is 43- 45%. • Cost is less. Rating is required less. Rated voltage is less. Minimum compensation is 23%. Cost is more.
- 20. SSSC • Controls both active and reactive power • Both capacitive and inductive mode is possible. • Impedance control. • Active and reactive power control with large energy source. • Fast control.
- 23. References [1]. A. Arun Kumar and P. Preetha “Comparison of Voltage Stability using SSSC and TCSC controller” International conference on Electronics and communication systems. [2]. S. Meikandasivam, R. Kumar Nema and S. Kumar Jain, “Selection of TCSC Parameters: Capacitor and Inductor”, Conference on Power Electronics (IICPE), India International, (2010), January 28-30 [3]. “Power quality improvement by SSSC.” IEEE Conference may 2017 [4].” Simulation of three-level 24-pulse voltage source converters-based static synchronous compensator for reactive power control” www.ietdl.org may 2014. [5]. “Application of Static Synchronous Series Compensators in Ferranti Effect” IEEE conference June 2016. [6]. “On Control of Static Synchronous Series Compensator for SSR Mitigation” IEEE conference published on June 2007. [7]. “Novel Controllers for the 48-Pulse VSC STATCOM and SSSC for Voltage Regulation and Reactive Power Compensation” IEEE transaction NOV 2005. [7]. “Reactive power compensation by Static Synchronous Series Compensator” IEEE conference 23 September 2016. [8] “Enhancement of voltage stability in transmission system using SSSC” IEEE conference march 2014. [9]. “Static synchronous series compensator: a solid-state approach to the series compensation of transmission lines” IEEE transaction January 1997. [10]. Hingorani NG, Gyugyi L (1999) Understanding FACTS. IEEE Press, New York
- 24. THANK YOU