Fault test cases for series compensated transmission line with the capacitor at the middle of the line

Description This data set contains time series data of different simulated fault cases in high voltage series compensated transmission lines. The simulation is done in PSCAD using the Python automation library. The capacitor is located in the middle of the line. The model of the line is given in the attached pdf file. The CT and VT are located at bus S. The distance are counted from bus S. The modelled line is 500 kV and 200 km long. The simulation is run for 1 second with 10 kHz sampling rate. Each file contains 10 data in the following order, Time Voltage phase A Voltage phase B Voltage phase C Current phase A Current phase B Current phase C Voltage across capacitor phase A Voltage across capacitor phase B Voltage across capacitor phase C The variables used to study different test cases are shown below, Fault inception angle (referred to phase A voltage): 0 and 90 degree Source impedance ratio: 0.20 and 0.35 Capacitor compensation level: 94 µF(50%), 78 µF(60%), 67 µF(70%) Fault resistance: 0.10, 10, 20 ohm Fault location: 10 km, 30 km, 50, 70 km, 90 km, 95 km, 105 km, 110 km, 130 km, 150 km, 160 km, 170 km, 180 km Fault type: No-fault, AG, BG, CG, ABG, CAG, BCG, ABCG, AB, CA, BC, ABC All these factors lead to 5616 test cases in total. The test cases are organized in four (4) zipped folders each containing 1404 test cases. The PSCAD model file and an example python script that can be used to automate the simulations are also included herewith for anyone interested to replicate the results. The name of the folders contains the information regarding fault inception angle and source impedance ratio for all test cases inside that folder, for example, the folder name Outputs_0_0.20 can be decoded as, 0: Fault inception angle (phase A) 0.20: Source impedance ration The files names inside the folders include information about the other variables used in generating the test case. For example, the name test_f_10_0_67_0.01 can be interpreted as, test_f: f for forward fault 10: fault location, 10 km 0: Fault type 67: Compensation level 0.01: Fault resistance Fault types are interpreted as in PSCAD. 0 = No-Fault, 1 = Phase A to Ground 2 = Phase B to Ground 3 = Phase C to Ground 4 = Phase AB to Ground 5 = Phase AC to Ground 6 = Phase BC to Ground 7 = Phase ABC to Ground 8 = Phase AB 9 = Phase AC 10 = Phase BC 11 = Phase ABC The different line parameters used in the PSCAD model is as below, Conductor Type: Chukar Geometric mean radius: 20.345 mm DC resistance: 0.0318Ω/km Strands: 84 Strand radius: 1.8491 mm Relative permeability: 1.0 Sag: 12 m Height: 22 m Sub-conductor: 2 Sub-conductor spacing: 0.4572 m Ground wire number: 2 Radius: 5.5245 mm DC resistance: 2.8645Ω/km Relative permeability: 1.0 Sag: 10 m Height: 10 m Impedance Positive sequence 0.018 +j0.339 Ω/km Zero sequence 0.266 +j1.017 Ω/km These simulations were run for assessing time-domain protections. Therefore, the parallel CB protection across the series capacitor is disabled, as one can safely assume even with the highest current levels, the CB will take at least 20 ms to operate. This is higher than the time limits for time-domain protection.

本数据集包含高压串联补偿输电线路不同模拟故障工况的时序数据。本次仿真采用PSCAD结合Python自动化库完成。补偿电容布置于线路中点，线路模型详见附件PDF文件。电流互感器（Current Transformer，CT）与电压互感器（Voltage Transformer，VT）均布置于母线S侧，距离计量以母线S为起点。本次建模的线路为500 kV电压等级，总长200 km。仿真时长为1秒，采样率为10 kHz。
每个文件包含10组数据，依次为：时间、A相电压、B相电压、C相电压、A相电流、B相电流、C相电流、A相电容两端电压、B相电容两端电压、C相电容两端电压。
本研究用于分析不同试验工况的变量如下：
1. 故障起始角（以A相电压为基准）：0°与90°
2. 电源阻抗比：0.20与0.35
3. 电容补偿容量：94 µF（补偿度50%）、78 µF（补偿度60%）、67 µF（补偿度70%）
4. 故障电阻：0.10 Ω、10 Ω、20 Ω
5. 故障位置：10 km、30 km、50 km、70 km、90 km、95 km、105 km、110 km、130 km、150 km、160 km、170 km、180 km
6. 故障类型：无故障、AG、BG、CG、ABG、CAG、BCG、ABCG、AB、CA、BC、ABC
上述变量组合共计5616组试验工况，被划分为4个压缩文件夹，每个文件夹包含1404组工况。
本次还随附PSCAD模型文件与可用于自动化仿真的示例Python脚本，供有需求的研究者复现试验结果。
文件夹名称包含该文件夹内所有工况的故障起始角与电源阻抗比信息。例如，文件夹名称Outputs_0_0.20可解析为：0代表A相故障起始角为0°，0.20代表电源阻抗比为0.20。
文件夹内的文件名则包含生成该工况所用的其余变量信息。例如，文件名test_f_10_0_67_0.01可解析为：test_f中的f代表正向故障，10代表故障位置为10 km，0代表故障类型，67代表补偿容量为67 µF，0.01代表故障电阻为0.01 Ω。
故障类型的编码规则与PSCAD一致：0=无故障，1=A相接地故障，2=B相接地故障，3=C相接地故障，4=AB相接地故障，5=AC相接地故障，6=BC相接地故障，7=ABC三相接地故障，8=AB相间故障，9=AC相间故障，10=BC相间故障，11=ABC三相相间故障
本PSCAD模型中采用的线路参数如下：
- 导线类型：丘卡尔（Chukar）
- 几何平均半径：20.345 mm
- 直流电阻：0.0318 Ω/km
- 股数：84股
- 单股半径：1.8491 mm
- 相对磁导率：1.0
- 弧垂：12 m
- 对地高度：22 m
- 子导线数量：2根
- 子导线间距：0.4572 m
- 地线数量：2根
- 地线半径：5.5245 mm
- 直流电阻：2.8645 Ω/km
- 相对磁导率：1.0
- 弧垂：10 m
- 对地高度：10 m
- 序阻抗：
- 正序阻抗：0.018 + j0.339 Ω/km
- 零序阻抗：0.266 + j1.017 Ω/km
本次仿真用于评估时域保护方案，因此串联电容旁的并联断路器（Circuit Breaker，CB）保护功能被禁用。这是因为即使在最大电流工况下，断路器动作时间至少需要20 ms，该时长超出了时域保护的动作时限要求。