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DAMPING ABILITY STUDY FOR UPFC

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Abstract (2. Language): 
This paper using the state space theory deduces the mathematical model for the single-machine infinite-bus systems with UPFC. And the eigenvalue method is employed to analyze the damping ability of UPFC. Based on the eigenvalue method analyzes conclusions, the oscillation frequency of the controlled power system is introduced to the conventional UPFC controller to change the fixed active power reference values. Then, based on the conventional UPFC controller, which adapting four independent PI controller, employs the principle of the PSS, this paper proposes a supplement controller for damping the low oscillation in the controlled power system. The detailed realization processing is stated in this paper. The simulations on the controlled power system without UPFC, with UPFC only and with UPFC integrated with the supplement controller by using PSCAD/EMTDC are made. The results reveal that the UPFC has the function of damping low frequency oscillation of the controlled power system itself, while the supplement controller may strengthen this effect dramatically.
739-746

REFERENCES

References: 

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“FACTS-Based Stabilizer Designed by
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DAMPING ABILITY STUDY FOR UPFC
Aihong TANG, Jiaoyu LIU, Youxin YUAN
746
Distrib, pp. 523-529, 2001.
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BIOGRAPHY
Aihong TANG was born in JIANGXI province
of China on December 1, 1969. She received her
PH.D for power systems and its automation from
Huazhong University in June, 2007, and MS for
power systems and its automation from Wuhan
University of hydraulic and electric in June,
1997. Her employment experience included the
power supply bureau, electric power design
institute and university. Now, she engage in the
operation and intelligent controlling for power
systems and flexibility AC transmission systems.

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