Fault test cases for series compensated transmission line with capacitor at line terminal
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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 at one of the line terminals with CT and VT. 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 7 data in the following order, Time Voltage phase A Voltage phase B Voltage phase C Current phase A Current phase B Current phase C The variables used to study different test cases are shown below, Fault inception angle (phase A): 0 and 90 degree Source impedance ratio: 0.20 and 0.35 Capacitor level: 94 µF(50%), 78 µF(60%), 67 µF(70%) Fault resistance: 0.10, 10, 20, 30 ohm Fault location: 10 km reverse, 10 km, 50 km, 100 km, 125 km, 150 km, 155 km, 160 km. 165 km, 170 km, 180 km, 190 km Fault type: No-fault, AG, BG, CG, ABG, CAG, BCG, ABCG, AB, CA, BC, ABC All these factors lead to 6912 test cases in total. The test cases are organized in four (4) zipped folders each containing 1728 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 folder 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, r for reverse 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 sequence0.018 +j0.339 Ω/km Zero sequence0.266 +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中各类模拟故障工况的时序数据。本仿真基于PSCAD平台，借助Python自动化库完成。串联补偿电容器设于线路的其中一个终端节点，配套安装有电流互感器（CT）与电压互感器（VT）。本次建模的输电线路额定电压为500 kV，总长200 km。仿真时长设定为1秒，采样率为10 kHz。每个数据文件包含7组数据，排列顺序依次为：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。 用于开展各类测试工况研究的变量如下： 1. A相故障起始角：0°与90° 2. 源阻抗比：0.20与0.35 3. 补偿电容容量：94 µF（对应50%补偿度）、78 µF（60%补偿度）、67 µF（70%补偿度） 4. 故障电阻：0.10 Ω、10 Ω、20 Ω、30 Ω 5. 故障位置：反向10 km、10 km、50 km、100 km、125 km、150 km、155 km、160 km、165 km、170 km、180 km、190 km 6. 故障类型：无故障、AG、BG、CG、ABG、CAG、BCG、ABCG、AB、CA、BC、ABC 上述变量组合总计可生成6912组测试工况，所有测试工况被打包为4个压缩文件夹，每个文件夹包含1728组测试案例。随本数据集一同提供PSCAD仿真模型文件与可用于自动化仿真的Python示例脚本，以供有需求的用户复现研究结果。 文件夹名称包含该文件夹内所有测试工况的故障起始角与源阻抗比信息。例如，文件夹名`Outputs_0_0.20`可解析为：0代表A相故障起始角，0.20代表源阻抗比。 文件夹内的文件名则包含生成该测试工况所需的其余变量信息。例如，文件名`test_f_10_0_67_0.01`可解析为： - `test_f`：`f`代表正向故障，`r`代表反向故障 - 10：故障位置，即10 km - 0：故障类型编号 - 67：补偿电容容量（对应67 µF） - 0.01：故障电阻，单位为Ω 故障类型与PSCAD内的编码规则一致，具体对应关系如下： 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： 1. 导线类型：Chukar 2. 几何平均半径：20.345 mm 3. 直流电阻：0.0318 Ω/km 4. 股数：84股 5. 单股半径：1.8491 mm 6. 相对磁导率：1.0 7. 弧垂：12 m 8. 架设高度：22 m 9. 子导线数量：2根 10. 子导线间距：0.4572 m 11. 地线数量：2根 12. 地线半径：5.5245 mm 13. 地线直流电阻：2.8645 Ω/km 14. 地线相对磁导率：1.0 15. 地线弧垂：10 m 16. 地线架设高度：10 m 17. 线路阻抗： - 正序阻抗：0.018 + j0.339 Ω/km - 零序阻抗：0.266 + j1.017 Ω/km 本次仿真旨在评估时域保护方案的性能，因此串联电容器两端的并联断路器（CB，Circuit Breaker）保护功能被禁用。原因在于：即便在最大电流工况下，断路器的动作时延至少为20 ms，这一时长已超出时域保护的动作时限要求。
