东北电力大学，电气工程及其自动化，毕业设计，大课题，计算书(1,共4)

3.2 手算冬季最大运行方式潮流

设全网电压额定值UN?1，平衡节点13电压U13?1.1?0? 1. 支路潮流计算： （1）支路：

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22?P?Q11??S???U2SZ26?Y7127N2UN0.772?0.47222?0.77?j0.4722??(0.0043?j0.11)?(0.001592?j0.0164)?1

1?0.8648?j0.488622?P?Q77??S??SZ813172UN0.86482?0.48862?0.8648?j0.4886??(0.0088?j0.0324)

1?0.9054?j0.4886U7?U13?(?U7??U7)?U13??1.1????P131R8?Q131X8PX?Q131R8?j1318U13U13

0.9054?0.0088?0.4886?0.03240.9054?0.0324?0.4886?0.0088?j1.11.1?1.0784?j0.0228?1.0786??0.02U1?U13???P131R26?Q131X26PX?Q131R26 ?j13126U7U70.8646?0.0043?0.4886?0.110.8648?0.11?0.4886?0.0043?j1.07861.0786?1.0784?j0.0228?

?1.0251?j0.1090?1.0309??0.11

（2）支路：

2?Ps2?Qs??S132?Ss?Z82UN1.762?1.09072?1.76?j1.0907??(0.0088?j0.0324)

1?1.7977?j1.2296Us?U13??1.1???P132R19?Q132X19PX?Q132R19?j13219U13U131.7977?0.0088?1.2296?0.03241.7977?0.0324?1.2296?0.0088 ?j1.11.1?1.0494?j0.431?1.0503??0.04（3）支路：

22?P?Q33??S???U2SZ28?Y8329N2UN0.662?0.40902?0.66?j0.4090??(0.0042?j0.14)?(0.00122?j0.01)?1

1?0.8228?j0.4411?S13322?P?Q88???SZ98U2N0.82282?0.44112?0.8228?j0.4411??(0.00785?j0.0258)

1?0.8296?j0.4636U8?U13??1.1???P133R9?Q133X9PX?Q133R9?j1339

U13U130.8296?0.00785?0.4636?0.02580.8296?0.0258?0.4636?0.00785?j

1.11.1?1.0832?j0.0161?1.0833??0.01

U3?U8???P8R28?Q8X28PX?Q8R28?j828U8U80.8228?0.0042?0.4411?0.140.8228?0.14?0.4411?0.0042?j1.08331.0833?1.0230?j0.1207?1.0301??0.12?1.0832?j0.0161?

（4）支路：

2?P12??Q1????2S11?S1??Z30?Y31UNU2N0.522?0.322?0.52?j0.32??(0.0042?j0.14)?(0.00122?j0.01)?1

1?0.5228?j0.3822??S??P11?Q11Z7S13411U2N?220.52282?0.38222?0.5228?j0.3822??(0.0172?j0.0568)

1?0.53?j0.4060U11?U13??1.1???P134R7?Q134X7PX?Q134R7?j1347U13U130.53?0.0172?0.4060?0.05680.53?0.0568?0.4060?0.0172 ?j1.11.1?1.0707?j0.0210?1.0709??0.02U4?U11???P11R30?Q11X30PX?Q11R30 ?j1130U11U110.5228?0.0042?0.3822?0.140.5228?0.14?0.3822?0.0042?j1.07091.0709?1.0707?j0.0210?

?1.0187?j0.0878?1.0225??0.09

（5）支路：

S?12??S?P221???Q1???1???U2Z34?Y?235UNN0.61?j0.37?0.612?0.372?1?(0.0042?j0.14)?(0.00122?j0.01)?1?0.6134?j0.4513S?6??S?6?Y?26UN?0.28?j0.1735?0.00244?j0.021=0.27756-j0.1835S?10?S?6??P226??Q6?U2Z?5N0.27762?0.2776?j0.1535??0.153521?(0.0021?j0.07)

?0.2774?j0.146522S?12???S?10?P10?Q10?U2Z10Nj0.1465?0.27742?0.14652?0.2774?1?(0.01125?j0.037)

?0.2763?j0.1429S?9?S?5?P25?Q25?U2Z32?Y?233UNN?0.03?j0.02?0.032?0.0221?(0.0042?j0.14)?(0.00122?j0.01)?1?0.0312?j0.0302S?2212???=S?P9?Q9?9?U2Z9 N0.03122?0.03022?0.0312?j0.0302?1?(0.0179?j0.059)

?0.0312?j0.0303