Impacts of variable quadrature reactance on power system stabilizer performance
Bibliographic record
Abstract
In the absence of rotor speed as a measured variable with acceptable resolution and accuracy, exciter manufacturers drive speed from other measurements. A common method used in the dual input PSS2A and PSS2B stabilizers is to derive the speed deviation Δω input by using generator internal voltage behind quadrature reactance Xq. The Xq of a synchronous machine deviates from the synchronous value when rotor speed oscillates during a disturbance, which is not always considered or analyzed in adequate depth in the Power System Stabilizer (PSS) time domain simulations during PSS planning, tuning and validation with respect to local mode and inter-area mode oscillations. Inappropriate Xq setting without considering its variations may result in underperformance of the PSS. This paper discusses the impact of the variable Xq on the PSS performance at local mode and inter-area mode. An appropriate Xq setting with emphasis in damping inter-area mode oscillations and a set of ramp tracking filter settings with low gain at local mode were recommended in a case study to ensure satisfactory PSS performance in both local mode and inter-area mode.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".