上海电力学院电力仿真大作业题目:电力仿真分析报告姓名:专业:电力系统及其自动化班级:130301学号:教师:2014年6月25日作业内容:1、潮流计算:(1)通过电力系统分析软件,给出所有节点的电压幅值与相角;(2)在图上给出整个系统的潮流分布图(电压幅值、相角、有功、无功及其流向)2、短路计算:(1)所有母线发生三相短路、单相短路时系统短路电流列表。(2)Line1、2、3、4、5线路中部发生短路时短路电流列表。3、稳定计算:(1)Bus4、5、6、7、9发生三相短路(持续0.2秒短路消失)所有机组的功角曲线;(2)Bus4、7、9发生三相短路(持续0.1秒两端断路器跳闸,1秒后重合,故障消失)所有机组的功角曲线。4、多重计算:(1)Bus4、7、9发生三相短路(短路初始时刻为1.0秒,并在随后的1个周波中发生30次短路),给出每条母线,每次短路时短路电流的最大值(瞬时值);(2)Bus5、6、8发生单相短路(短路初始时刻为1.0秒,并在随后的1个周波中发生50次短路),给出每条母线,每次短路时短路电流的最大值(瞬时值),并分析给出每个母线上全部短路电流的最大值。1、潮流计算(1)利用BPA软件,计算出所有节点的电压幅值与相角。节点电压幅值(KV/p.u)相角(度)BUS11.0400.0BUS21.0259.3BUS31.0254.7BUS41.026-2.2BUS50.996-4.0BUS61.013-3.7BUS71.0263.7BUS81.0160.7BUS91.0322.0(2)系统潮流分布图2、短路计算(1)所有母线发生三相短路、单相短路时系统短路电流列表。所有母线发生三相短路时短路电流如下:母线电压等级短路电流(KA)短路容量BUS116.5101.1522890.795BUS218.049.9771558.135BUS313.857.2081367.413BUS42303.8161520.040BUS52302.483988.975BUS62302.321924.717BUS72303.1401250.749BUS82302.5241005.469BUS92302.9601179.138所有母线发生A相短路时短路电流如下:母线电压等级短路电流(KA)短路容量BUS116.50.0000.003BUS218.00.0000.003BUS313.80.0000.003BUS42304.1071636.093BUS52301.900757.062BUS62301.782709.856BUS72303.5941431.671BUS82302.140852.522BUS92303.3971353.442(2)Line1、2、3、4、5线路中部发生短路时短路电流列表。短路线路短路电流(KA)相角(度)Line12.842-79.58Line22.323-79.057Line32.721-78.94Line42.18-78.54Line52.688-80.923、稳定计算:(1)Bus4、5、6、7、9发生三相短路(持续0.2秒短路消失)所有机组的功角曲线;Bus4短路在1秒时发生三相短路,持续0.2S,仿真时间2sMain:Lang10.000.250.500.751.001.251.501.752.00.........-1.25-1.00-0.75-0.50-0.250.000.250.500.751.00yLang1Main:Lang20.000.250.500.751.001.251.501.752.00.........-0.30-0.20-0.100.000.100.200.30yLang2Main:Lang30.000.250.500.751.001.251.501.752.00.........0.000.200.400.600.801.001.20yLang3Bus5短路在1秒时发生三相短路,持续0.2S,仿真时间2sMain:Lang10.000.250.500.751.001.251.501.752.00.........-1.25-1.00-0.75-0.50-0.250.000.250.500.751.00yLang1Main:Lang20.000.250.500.751.001.251.501.752.00.........-0.30-0.20-0.100.000.100.200.30yLang2Main:Lang30.000.250.500.751.001.251.501.752.00.........0.000.200.400.600.801.001.20yLang3Bus6短路在1秒时发生三相短路,持续0.2S,仿真时间2sMain:Lang10.000.250.500.751.001.251.501.752.00.........-1.25-1.00-0.75-0.50-0.250.000.250.500.751.00yLang1Main:Lang20.000.250.500.751.001.251.501.752.00.........-0.30-0.20-0.100.000.100.200.30yLang2Main:Lang30.000.250.500.751.001.251.501.752.00.........0.000.200.400.600.801.001.20yLang3Bus7短路在1秒时发生三相短路,持续0.2S,仿真时间2sMain:Lang10.000.250.500.751.001.251.501.752.00.........-1.25-1.00-0.75-0.50-0.250.000.250.500.751.00yLang1Main:Lang20.000.250.500.751.001.251.501.752.00.........-0.60-0.50-0.40-0.30-0.20-0.100.000.100.200.300.40yLang2Main:Lang30.000.250.500.751.001.251.501.752.00.........0.000.200.400.600.801.001.20yLang3Bus9短路在1秒时发生三相短路,持续0.2S,仿真时间2sMain:Lang10.000.250.500.751.001.251.501.752.00.........-1.25-1.00-0.75-0.50-0.250.000.250.500.751.00yLang1Main:Lang20.000.250.500.751.001.251.501.752.00.........-0.60-0.50-0.40-0.30-0.20-0.100.000.100.200.300.40yLang2Main:Lang30.000.250.500.751.001.251.501.752.00.........-1.25-1.00-0.75-0.50-0.250.000.250.500.751.001.25yLang3(2)Bus4、7、9发生三相短路(持续0.1秒两端断路器跳闸,1秒后重合,故障消失)所有机组的功角曲线。Bus4短路Main:Lang10.000.501.001.502.002.503.003.504.00.........-1.50-1.00-0.500.000.501.00yLang1Main:Lang20.000.501.001.502.002.503.003.504.00.........-0.30-0.20-0.100.000.100.200.30yLang2Main:Lang30.000.501.001.502.002.503.003.504.00.........0.000.200.400.600.801.001.20yLang3Bus7短路Main:Lang10.000.501.001.502.002.503.003.504.00.........-0.60-0.50-0.40-0.30-0.20-0.100.000.100.200.300.400.50yLang1Main:Lang20.000.501.001.502.002.503.003.504.00.........-0.60-0.50-0.40-0.30-0.20-0.100.000.100.200.300.40yLang2Main:Lang30.000.501.001.502.002.503.003.504.00.........0.000.100.200.300.400.500.600.700.800.901.00yLang3Bus9短路Main:Lang10.000.501.001.502.002.503.003.504.00.........-0.60-0.50-0.40-0.30-0.20-0.100.000.100.200.300.400.50yLang1Main:Lang20.000.501.001.502.002.503.003.504.00.........-0.60-0.50-0.40-0.30-0.20-0.100.000.100.200.300.40yLang2Main:Lang30.000.501.001.502.002.503.003.504.00.........-1.50-1.00-0.500.000.501.001.50yLang34、多重计算:(1)Bus4、7、9发生三相短路(短路初始时刻为1.0秒,并在随后的1个周波中发生30次短路),给出每条母线,每次短路时短路电流的最大值(瞬时值);Bus4发生三相短路Bus7发生三相短路Bus9发生三相短路(2)Bus5、6、8发生单相短路(短路初始时刻为1.0秒,并在随后的1个周波中发生50次短路),给出每条母线,每次短路时短路电流的最大值(瞬时值),并分析给出每个母线上全部短路电流的最大值。Bus5发生A单相短路全部短路电流的最大值Maximum=4.998448122kABus6发生单相短路全部短路电流的最大值Maximum=5.450006264kABus8发生单相短路全部短路电流的最大值Maximum=3.880355267kA