低压开关与控制MATLAB仿真设计.docxVIP

低压开关及控制 实验目的: 掌握高压断路器和低压开关的区别。 熟练运用MATLAB中的电力系统工具箱对理想低压开关电路进行建模， 观察分析其波形。 实验容： (1)如图1.1所示，构建理想开关电路，观测理想开关的投切效果。开关未 并联缓冲电路，导通时电阻为0.01約开关初始为合闸状态，0.06 s时开关断开, 0.165 s时重合闸成功. 图1.1 (2)设置模块参数和仿真参数。 双击理想开关模块，按图1.2设置参数。双击定时器模块，按图1.3设置开 关初始为合闸状态，0.06 s时开关断开，0.165 s时再次合闸。 电压源Vs的有效值为120 V,频率为50 Hz。串联RLC支路中，电阻R= 10 Q,电感L = 0.1 H，电容C=10卩F。 打开菜单[Simulation>Configuration Parameters] ，选择 ode23tb 算法， 同时设置仿真结束时间为20 ms 图1.2 L*J| Scxjrc-r IE lock FararrctrFS; Tinner Tiniisr Qnm政)〈Lihkl t-anerai es a slgri-aJ char.ging 宜t speelf le d t Ines. If a SLgnal is net opocifigd it tino soroj the output l口 kopt at 0 uritil the first iod transition J tiiw. Psranistsrs1 Him (s>: QH ] UancuL Help Jlpply 图1.3 1% Bi&tk PmuK审“ AC Vohfl沪 Schjrtf 图1.5 花｝ mloclt Parameters； Series RLC Bra nth Series ELC Branch ^mask) (link)1 Implements a series branch of KLC elemerita? LJse the f Branch type* paramet&r tc add or removB elemeiTt3 fr^ju th? b#迹ch? 图1.6 图 图3.2 三相电压电流测量模块图3.3 怜| Elock Pameters: Three-Phase V-I Vlea^ur^ment Three-Phase VI Jlcasureuieirt (mask) (link)The Llock can cut put -the volt ages and current 3 in per uixit values or in vt>lt s and ^jnperea?Volt ages in pgbas&d on peak value of nominal phased□-ground voltageCurrent nsasurement yesC阿pl Three-Phase VI Jlcasureuieirt (mask) (link) The Llock can cut put -the volt ages and current 3 in per uixit values or in vt>lt s and ^jnperea? Volt ages in pg bas&d on peak value of nominal phased□-ground voltage Current nsasurement yes C阿pl祁 Output signals in; H&lp Apply Use a l^bel | CuETants in pu Ideal three-phase voltsge and. current lie赶廿utren&Trts? 图3.3 输电线路图3.4: [怙 Bl wk Para met ct-s: Distributed ^ararmcirrs Lind ■￡M either sr^rify rftnjlstia ZNvNJ matrices ar sinply p^rflsiwtiwntoral th? pasitlffR wd ZArn seqiifince 卩刃芝跡号曹 for a i￥(rT)hase or three-phase trsnsDoseii line, plus the imjit'JsaL sercr sequence for a sis-phase transposed line <2 coupled 3~j?hase lines) ?arajT.eit*rff Mujibair -af [ N ] s FieQuency used foe ilc sp&ciri匚wtimi (Ez); 60