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Mathematical Problems in Engineering
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2020
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Article
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Tab 4
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Research Article
PSS Parameter Optimization Based on Comprehensive Damping Effect Method Aiming at Actual Grid Characteristics in Northern China
Table 4
Oscillation mode comparison of the regional power grid.
Mode
Eigenvalue (unit: 1)
Frequency (Hz)
Damping ratio (unit: 1)
Original parameters
−0.175 +
j
2.54
0.403
0.069
Optimized parameters
−0.195 +
j
2.50
0.398
0.078