Sympowersysterms部分模塊翻譯.docVIP

Breaker Implement circuit breaker opening at current zero crossing實(shí)現(xiàn)電路斷路器在電流過(guò)零時(shí)斷開(kāi)Library ElementsDescriptionThe Breaker block implements a circuit breaker where the opening and closing times can be controlled either from an external Simulink signal (external control mode), or from an internal control timer (internal control mode).斷路器模塊實(shí)現(xiàn)了開(kāi)閉時(shí)間由外部Simulink信號(hào)（外部控制模式）或內(nèi)部控制定時(shí)器（內(nèi)部控制模式）可控的電路斷路器。A series Rs-Cs snubber circuit is included in the model. It can be connected to the circuit breaker. If the Breaker block happens to be in series with an inductive circuit, an open circuit or a current source, you must use a snubber.一系列Rs-Cs緩沖電路包含在模型中。它可以連接到斷路器。如果發(fā)生斷路器模塊串聯(lián)一個(gè)電感電路、一個(gè)開(kāi)路或一個(gè)電流源，你必須使用一個(gè)緩沖電路。When the Breaker block is set in external control mode, a Simulink input appears on the block icon. The control signal connected to the Simulink input must be either 0 or 1 (0 to open the breaker, 1 to close it). 當(dāng)斷路器塊被設(shè)置在外部控制模式下，模塊圖標(biāo)上出現(xiàn)的Simulink輸入端。連接到Simulink的輸入端控制信號(hào)必須是0或1（0打開(kāi)斷路器， 1關(guān)閉）。When the Breaker block is set in internal control mode, the switching times are specified in the dialog box of the block.當(dāng)斷路器塊被設(shè)置在內(nèi)部控制模式下，開(kāi)關(guān)時(shí)間在模塊的對(duì)話(huà)框中指定。When the breaker is closed, it is represented by a resistance Ron. The Ron value can be set as small as necessary in order to be negligible compared with external components (a typical value is 10 mohms). When the breaker is open, it has an infinite resistance.當(dāng)斷路器閉合，它由內(nèi)部電阻代表。 為了與外部元件（典型值是10毫歐）相比是可以忽略的，內(nèi)部電阻值有必要設(shè)置的很小。當(dāng)斷路器是斷開(kāi)的，它具有無(wú)窮大的電阻。The arc extinction process is simulated by opening the breaker device when its current passes through 0 at the first current zero crossing following the transition of the Simulink control input from 1 to 0. Simulink的控制輸入從1變?yōu)?且在第一次電流過(guò)零點(diǎn)，斷路器的電流過(guò)零時(shí)，滅弧過(guò)程由斷開(kāi)的斷路器設(shè)備模擬。Operation動(dòng)作 The Breaker closes when 閉合Conditions條件 Control signal goes to 1 (for discrete systems, control signal must stay at 1 for at least 3 times the sampling period)控制信號(hào)變?yōu)?（離散系統(tǒng)，控制信號(hào)必須至少在3次采樣周期保持為1）Operation動(dòng)作 The Breaker opens when 斷開(kāi)Conditions條件 Control signal goes to 0 控制信號(hào)變?yōu)? Breaker current passes through 0 斷路器電流過(guò)零Note注意 The Breaker block may not be the appropriate switching device to use for DC circuits. For such applications, it is recommended that you use the Ideal Switch block as a switching device.對(duì)于直流電路，斷路器塊可能不是合適的開(kāi)關(guān)設(shè)備。 對(duì)于這樣的應(yīng)用，建議你使用理想開(kāi)關(guān)模塊作為開(kāi)關(guān)器件。 Dialog Box and Parameters對(duì)話(huà)框和參數(shù)Breaker resistance Ron 內(nèi)部電阻The internal breaker resistance, in ohms (). The Breaker resistance Ron parameter cannot be set to 0.斷路器內(nèi)部電阻，單位是歐姆。斷路器內(nèi)部電阻參數(shù)不能設(shè)置為0。Initial state 初始狀態(tài)The initial state of the breaker. A closed contact is displayed in the block icon when the Initial state parameter is set to 1, and an open contact is displayed when it is set to 0.斷路器的初始狀態(tài)。 當(dāng)初始狀態(tài)參數(shù)設(shè)置為1時(shí)，一個(gè)常閉觸點(diǎn)顯示在模塊圖標(biāo)上；當(dāng)它被設(shè)置為0時(shí)，顯示常開(kāi)觸點(diǎn)。If the breaker initial state is set to 1 (closed), the software automatically initializes all the states of the linear circuit and the Breaker block initial current, so that the simulation starts in steady state.如果斷路器初始狀態(tài)設(shè)置為1（閉合），該軟件會(huì)自動(dòng)初始化的線(xiàn)性電路的所有狀態(tài)和斷路器模塊初始電流，以便模擬從穩(wěn)態(tài)開(kāi)始。Snubber resistance Rs 過(guò)渡電阻The snubber resistance, in ohms (). Set the Snubber resistance Rsparameter to inf to eliminate the snubber from the model. 過(guò)渡電阻單位是歐姆。將過(guò)渡電阻設(shè)置為無(wú)窮大來(lái)消除模型的緩沖。Snubber capacitance Cs 過(guò)渡電容The snubber capacitance, in farads (F). Set the Snubber capacitance Cs parameter to 0 to eliminate the snubber, or to inf to get a resistive snubber.過(guò)渡電容，單位farads ( F )；將過(guò)渡電容設(shè)置為0消除緩沖，設(shè)置為無(wú)窮大獲得一個(gè)電阻緩沖。Switching times開(kāi)關(guān)時(shí)間Specifies the vector of switching times when using the Breaker block in internal control mode. At each switching time the Breaker block opens or closes depending on its initial state. For example, if the Initial state parameter is 0(open), the breaker closes at the first switching time, opens at the second switching time, and so on. The Switching times parameter is not visible in the dialog box if the External control of switching times parameter is selected.當(dāng)以?xún)?nèi)部的控制方式使用斷路器模塊時(shí)，規(guī)定切換時(shí)間的矢量。在每一次切換時(shí)間斷路器模塊閉合或斷開(kāi)依賴(lài)于其初始的狀態(tài)。例如，如果初始狀態(tài)參數(shù)是0 (斷開(kāi))，斷路器在第一段轉(zhuǎn)換的時(shí)間閉合，在第二段轉(zhuǎn)換的時(shí)間斷開(kāi)，如此等等。如果選擇了切換時(shí)間的外部控制方式，切換時(shí)間參數(shù)在對(duì)話(huà)框中是不可見(jiàn)的。External control of switching times 外部控制切換時(shí)間If selected, adds a Simulink input to the Breaker block for external control of the switching times of the breaker. The switching times are defined by a logical signal (0or 1) connected to the Simulink input.如果選擇此項(xiàng)，為了斷路器的切換時(shí)間的外部控制，把一Simulink輸入端添加到斷路器模塊。切換時(shí)間通過(guò)連接到Simulink輸入端的的一個(gè)邏輯信號(hào)( 0或1)被定義。Measurements 測(cè)量Select Branch voltage to measure the voltage across the Breaker block terminals.選擇“支路電壓”，測(cè)量斷路器模塊端子電壓。Select Branch current to measure the current flowing through the Breaker block. If the snubber device is connected to the breaker model, the measured current is the one flowing through the breaker contacts only.選擇“支路電流”，測(cè)量流過(guò)斷路器的電流。如果緩沖裝置連接到斷路器模型，測(cè)得的電流是流經(jīng)斷路器觸點(diǎn)的電流。Select Branch voltage and current to measure the breaker voltage and the breaker current. 選擇“支路電壓和電流”，測(cè)量斷路器的電壓和電流。Place a Multimeter block in your model to display the selected measurements during the simulation. 將萬(wàn)用表塊放置在你的模型，在模擬過(guò)程中會(huì)顯示要測(cè)的量。In the Available Measurements list box of the Multimeter block, the measurement is identified by a label followed by the block name:在萬(wàn)用表的可測(cè)量的列表框中，測(cè)量值由模塊名稱(chēng)加標(biāo)簽來(lái)標(biāo)識(shí)。Limitations限制因數(shù) When the block is connected in series with an inductor or another current source, you must add the snubber circuit. In most applications you can use a resistive snubber (Snubber capacitance parameter set to inf) with a large resistor value (Snubber resistance parameter set to 1e6 or so). Because of modeling constraints, the internal breaker inductance Ron cannot be set to 0.當(dāng)模塊串聯(lián)一個(gè)電感或另一個(gè)電流源時(shí)，你必須添加緩沖電路。 在大多數(shù)應(yīng)用中，你可以使用一個(gè)有大電阻值（ 緩沖電阻參數(shù)設(shè)置為1e6等）的緩沖電阻（ 緩沖電容的參數(shù)設(shè)置為無(wú)窮大）。 由于模型的限制，斷路器內(nèi)部電阻不能設(shè)為0。You must use a stiff integration algorithm to simulate circuits with the Breaker block. ode23tb with default parameters usually gives the best simulation speed.你必須使用一種剛性綜合算法用斷路器模塊模擬電路。帶有缺省參數(shù)的ode23t通常給出了最好的仿真速度。For discretized models, the control signal must stay at 1 for a minimum of 3 sampling time periods to correctly close the Breaker block, otherwise the device stays open.對(duì)于離散模型，控制信號(hào)至少在3段采樣周期保持為1才能正確地閉合斷路器，否則斷路器保持在斷開(kāi)狀態(tài)。Example 舉例The power_breaker demo illustrates a circuit breaker connected in series with a series RL circuit on a 60 Hz voltage source. The switching times of the Breaker block are controlled by a Simulink signal. The breaker device is initially closed and an opening order is given at t = 1.5 cycles, when current reaches a maximum. The current stops at the next zero crossing, then the breaker is reclosed at a zero crossing of voltage at t = 3 cycles.power_breaker 演示解釋了在60HZ電壓源下，與一系列RL電路串聯(lián)的電路斷路器。 斷路器模塊的開(kāi)關(guān)時(shí)間由Simulink信號(hào)控制。 斷路器設(shè)備初始狀態(tài)是閉合的，在t = 1.5個(gè)周期，電流達(dá)到最大值時(shí)，斷路器斷開(kāi)。在下一個(gè)過(guò)零點(diǎn)電流停止，然后斷路器在t = 3個(gè)周期的電壓過(guò)零點(diǎn)重新閉合。Note that the breaker device opens only when the load current has reached zero, after the opening order。請(qǐng)注意只有在負(fù)載電流為零，并給出了斷開(kāi)命令時(shí)，斷路器設(shè)備才會(huì)斷開(kāi)。Linear Transformer 線(xiàn)性變壓器Implement two- or three-winding linear transformer實(shí)現(xiàn)兩繞組或三繞組的線(xiàn)性變壓器Library 庫(kù)Elements元素Description說(shuō)明The Linear Transformer block model shown consists of three coupled windings wound on the same core.圖中顯示的線(xiàn)性變壓器模塊模型在同一個(gè)鐵心上包含三個(gè)耦合繞組。The model takes into account the winding resistances (R1 R2 R3) and the leakage inductances (L1 L2 L3), as well as the magnetizing characteristics of the core, which is modeled by a linear (Rm Lm) branch.該模型考慮到了繞組電阻（ R1，R2 ，R3）和泄漏電感（ L1，L2， L3 ）以及鐵心的磁化特性，鐵心的磁化特性是由線(xiàn)性支路(Rm Lm) 模擬。The Per Unit Conversion 標(biāo)幺值轉(zhuǎn)換In order to comply with industry, the block allows you to specify the resistance and inductance of the windings in per unit (pu). The values are based on the transformer rated powerPn , in VA, nominal frequency fn, in Hz, and nominal voltage Vn, in Vrms, of the corresponding winding. For each winding, the per unit resistance and inductance are defined as為了符合行業(yè)標(biāo)準(zhǔn)，模塊準(zhǔn)許你以標(biāo)幺值具體指定繞組的電阻和電感。該數(shù)值是根據(jù)變壓器每個(gè)繞組的額定功率Pn（單位是VA）、額定頻率fn（單位是 Hz）和額定電壓Vn（單位是Vrms）來(lái)指定的。對(duì)于每個(gè)繞組，電阻和電感標(biāo)幺值被定義為T(mén)he base impedance, base resistance, base reactance, and base inductance used for each winding are用于每個(gè)繞組的基準(zhǔn)阻抗, 基準(zhǔn)電阻, 基準(zhǔn)電抗, 基準(zhǔn)電感是For the magnetization resistance Rm and inductance Lm, the pu values are based on the transformer rated power and on the nominal voltage of winding 1.對(duì)于磁化電阻Rm和磁化電感Lm，標(biāo)幺值數(shù)值是由變壓器的額定功率和一次繞組的額定電壓決定的。For example, the default parameters of winding 1 specified in the dialog box section give the following bases:例如，在對(duì)話(huà)框部分指定的一次繞組的默認(rèn)參數(shù)按如下基準(zhǔn)值設(shè)置：Suppose that the winding 1 parameters are R1 = 4.32 and L1 = 0.4586 H; the corresponding values to be entered in the dialog box are假設(shè)一次繞組參數(shù)為R1 = 4.32 ， L1 = 0.4586 H ;在對(duì)話(huà)框中輸入相應(yīng)的值To specify a magnetizing current of 0.2% (resistive and inductive) based on nominal current, you must enter per unit values of 1/0.002 = 500 pu for the resistance and the inductance of the magnetizing branch. Using the base values calculated previously, these per unit values correspond to Rm = 1.08e6 ohms and Lm = 2866 henries.要指定一個(gè)0.2額定電流的磁化電流（阻性和感性），你必須為勵(lì)磁支路的電阻和電抗輸入500單位的標(biāo)幺值數(shù)值。根據(jù)先前計(jì)算的基準(zhǔn)值，這些對(duì)應(yīng)的數(shù)值為電阻是1.08e6 歐姆，電抗是2866亨利。Modeling an Ideal Transformer理想變壓器建模 To implement an ideal transformer model, set the winding resistances and inductances to 0, and the magnetization resistance and inductance (Rm Lm) to inf.為了建立一個(gè)理想的變壓器模型，設(shè)置繞組的電阻和電感為0，磁阻和磁感為無(wú)窮大。Dialog Box and Parameters對(duì)話(huà)框和參數(shù)Units單位Specify the units used to enter the parameters of the Linear Transformer block. Select pu to use per unit. Select SI to use SI units. Changing the Units parameter from pu to SI, or from SI to pu, will automatically convert the parameters displayed in the mask of the block. The per unit conversion is based on the transformer rated power Pn in VA, nominal frequency fn in Hz, and nominal voltage Vn, in Vrms, of the windings.指定用于輸入的線(xiàn)性變壓器的模塊參數(shù)的單位。pu表示標(biāo)幺值。SI表示國(guó)際單位制。改變單位參數(shù)，模塊面板上顯示的參數(shù)將自動(dòng)轉(zhuǎn)換。標(biāo)幺值轉(zhuǎn)換依賴(lài)于變壓器繞組的額定功率(單位是VA)、額定頻率(單位是Hz）和額定電壓（單位是Vrms）。Nominal power and frequency額定功率和頻率 The nominal power rating Pn in volt-amperes (VA) and frequency fn, in hertz (Hz), of the transformer. Note that the nominal parameters have no impact on the transformer model when the Units parameter is set to SI.變壓器的額定功率Pn以VA為單位，頻率以HZ為單位。須注意的是，當(dāng)單位參數(shù)設(shè)置為SI時(shí)，額定參數(shù)對(duì)變壓器模型沒(méi)有影響。Winding 1 parameters一次繞組參數(shù) The nominal voltage V, in volts RMS, resistance, in pu or ohms, and leakage inductance, in pu or henries. The pu values are based on the nominal power Pn and on V1. Set the winding resistances and inductances to 0 to implement an ideal winding.額定電壓V是有效值，單位伏特，電阻單位是標(biāo)幺值或歐姆，漏感單位是標(biāo)幺值或亨利。標(biāo)幺值數(shù)值依據(jù)變壓器的額定功率Pn和一次繞組的額定電壓設(shè)定。繞組的電阻和電感設(shè)置為0,可以實(shí)現(xiàn)一個(gè)理想的繞組。 Winding 2 parameters 二次繞組參數(shù)The nominal voltage V2 in volts RMS, resistance, in pu or ohms, and leakage inductance, in pu or henries. The pu values are based on the nominal power Pn and on V2. Set the winding resistances and inductances to 0 to implement an ideal winding.額定電壓V2是有效值，單位伏特，電阻單位是標(biāo)幺值或歐姆，漏感單位是標(biāo)幺值或亨利。標(biāo)幺值數(shù)值依據(jù)變壓器的額定功率和二次繞組的額定電壓設(shè)定。繞組的電阻和電感設(shè)置為0,可以實(shí)現(xiàn)一個(gè)理想的繞組.Three windings transformer 三繞組變壓器If selected, implements a linear transformer with three windings; otherwise, it implements a two-windings transformer.如果選擇，可以實(shí)現(xiàn)三個(gè)繞組的線(xiàn)性變壓器，否則，它實(shí)現(xiàn)一個(gè)雙繞組變壓器。Winding 3 parameters 三次繞組參數(shù)The Winding 3 parameters parameter is not available if the Three windings transformer parameter is not selected.如果沒(méi)有選擇三繞組變壓器，那么三次繞組的參數(shù)設(shè)定是不可用的。The nominal voltage in volts RMS (Vrms), resistance, in pu or ohms, and leakage inductance in pu or henries. The pu values are based on the nominal power Pn and on V3. Set the winding resistances and inductances to 0 to implement an ideal winding.額定電壓V3是有效值，單位伏特，電阻單位是標(biāo)幺值或歐姆，漏感單位是標(biāo)幺值或亨利。標(biāo)幺值數(shù)值依據(jù)變壓器的額定功率和三次繞組的額定電壓設(shè)定。繞組的電阻和電感設(shè)置為0,可以實(shí)現(xiàn)一個(gè)理想的繞組.Magnetization resistance and inductance 磁化電阻和磁化電感The resistance and inductance simulating the core active and reactive losses. When selected, the pu values are based on the nominal power Pn and on V1. For example, to specify 0.2% of active and reactive core losses, at nominal voltage, use Rm = 500 pu and Lm = 500 pu. 磁化電阻和磁化電感模擬了鐵心有功和無(wú)功損耗。當(dāng)選擇三繞組變壓器時(shí)，標(biāo)幺值數(shù)值根據(jù)變壓器的額定功率和一次繞組的額定電壓決定。例如，在額定電壓下，指定鐵心有功和無(wú)功損耗的0.2%，需要設(shè)置Rm = 500 pu and Lm = 500 pu.。Measurements 測(cè)量Select Winding voltages to measure the voltage across the winding terminals of the Linear Transformer block.選擇“繞組電壓”，通過(guò)線(xiàn)性變壓器模塊的繞組端子來(lái)測(cè)量電壓。Select Winding currents to measure the current flowing through the windings of the Linear Transformer block. 選擇“繞組電流”，測(cè)量通過(guò)線(xiàn)性變壓器模塊繞組的電流。Select Magnetization current to measure the magnetization current of the Linear Transformer block. 選擇“磁化電流”，測(cè)量通過(guò)線(xiàn)性變壓器模塊的磁化電流。Select All voltages and currents to measure the winding voltages and currents plus the magnetization current.選擇“所有的電壓和電流”，測(cè)量繞組電壓、電流和磁化電流。Place a Multimeter block in your model to display the selected measurements during the simulation. 將萬(wàn)用表塊放置在你的模型中，在模擬過(guò)程中會(huì)顯示要測(cè)的量。In the Available Measurements list box of the Multimeter block, the measurements are identified by a label followed by the block name.在萬(wàn)用表的可測(cè)量的列表框中，測(cè)量值由模塊名稱(chēng)加標(biāo)簽來(lái)標(biāo)識(shí)。Limitations限制因數(shù) Windings can be left floating (that is, not connected to the rest of the circuit). However, an internal resistor is automatically added between the floating winding and the main circuit. This internal connection does not affect voltage and current measurements.繞組可以懸空（即不連接到電路的其余部分）。然而，懸浮繞組和主電路之間會(huì)自動(dòng)添加內(nèi)部電阻。這種內(nèi)部連接不影響電壓和電流測(cè)量。Due to limitations inherent to graph theory and its application to electric network theory as implemented in SimPowerSystems software, the following topologies are unsolvable:由于圖論的固有局限性，其在電網(wǎng)絡(luò)理論及其在SimPowerSystems 軟件中的應(yīng)用實(shí)現(xiàn)，都無(wú)法解決下面的拓?fù)浣Y(jié)構(gòu)： Loops containing only ideal transformer secondary windings (for example, delta-connected ideal secondary windings of three-phase transformer). To solve this topology issue, you can add a small impedance in series with the loop. 回路僅僅包含理想變壓器的次級(jí)繞組（例如，三相變壓器的三角形連接的理想的次級(jí)繞組）。為了解決這個(gè)拓?fù)鋯?wèn)題，你可以在回路中串聯(lián)一個(gè)小電阻。Loops containing only ideal transformer secondary windings and ideal voltage sources. To solve this topology issue, you can add a small impedance in series with the loop.回路僅僅包含理想變壓器的次級(jí)繞組和理想電壓源。為了解決這個(gè)拓?fù)鋯?wèn)題，你可以在回路中串聯(lián)一個(gè)小電阻。 Loops containing only ideal transformer secondary windings and capacitors. To solve this topology issue, you can add a small impedance in series with the loop.回路僅僅包含理想變壓器的次級(jí)繞組和電容器。為了解決這個(gè)拓?fù)鋯?wèn)題，你可以在回路中串聯(lián)一個(gè)小電阻。 All topologies where an ideal transformer primary has at least one of its nodes that is connected to elements consisting only of ideal transformer primary windings or current sources (for example, wye-connected three-phase primary windings with floating common point). To resolve this circuit topology, you connect a small resistance to problematic node.一個(gè)理想變壓器最初至少有一個(gè)節(jié)點(diǎn)，它的所有拓?fù)浣Y(jié)構(gòu)都一些元素關(guān)聯(lián)，這些元素僅僅包含理想變壓器的初級(jí)繞組和電流源（例如，中性點(diǎn)未接地的星形連接的三相初級(jí)繞組）。為了解決這個(gè)回路拓?fù)鋯?wèn)題，你可以在問(wèn)題節(jié)點(diǎn)處接入一個(gè)小阻抗。Load Flow Bus 潮流母線(xiàn)Identify and parameterize load flow bus 識(shí)別和參數(shù)化潮流母線(xiàn)Library 庫(kù)Measurements 測(cè)量元件Description 說(shuō)明The Load Flow Bus block is used in three-phase models to specify the bus locations and parameters in order to solve a load flow. The load flow is solved by the Powergui Load Flow tool. You normally connect this block on any phase (A, B, or C) of a three-phase load flow block. Load flow blocks are SimPowerSystems blocks where power and voltage can be specified. They are:潮流總線(xiàn)模塊用在三相模型中，用來(lái)指定母線(xiàn)的位置和參數(shù)，以解決負(fù)載流量。潮流由PowerGUI的潮流工具解決。通常，你可以將潮流母線(xiàn)模塊連接到三相潮流模塊的任意一相（A，B或C），這個(gè)潮流模塊指的是功率和電壓可以指定的SimPowerSystems模塊。它們分別是：Asynchronous Machine 異步電動(dòng)機(jī)Simplified Synchronous Machine 簡(jiǎn)化同步電動(dòng)機(jī)Synchronous Machine 同步電動(dòng)機(jī)Three-Phase Dynamic Load 三相動(dòng)態(tài)負(fù)載Three-Phase Parallel RLC Load 三相RLC并聯(lián)負(fù)載Three-Phase Programmable Voltage Source 三相可編程電壓源Three-Phase Series RLC Load 三相RLC串聯(lián)負(fù)載Three-Phase Source 三相電源Once the load flow is solved, the bus voltage magnitude and phase angle are displayed below the Load Flow Bus blocks as block annotations. The Load Flow tool lists, for each bus, the active and reactive power transferred to other buses.潮流一旦得到解決，母線(xiàn)電壓幅值和相角將作為注釋顯示在潮流母線(xiàn)模塊下方。每個(gè)總線(xiàn)的潮流的工具列表將有功和無(wú)功轉(zhuǎn)移到其他母線(xiàn)上。When several load flow blocks are connected together at the same bus, only one Load Flow Bus block is required. You can also connect the Load Flow Bus block at a location where you are interested in monitoring the load flow, even if no load flow blocks are connected at that location. In such a case, the Load Flow Bus block must be connected to any phase of a three-phase block (Three-Phase Breaker, Three-Phase PI Section Line, Three-Phase Transformer, and so on).當(dāng)幾個(gè)潮流模塊連接到同一條母線(xiàn)上時(shí)，只需一個(gè)潮流母線(xiàn)模塊。你也可以在感興趣監(jiān)測(cè)潮流的地方連接潮流母線(xiàn)模塊，即使此處沒(méi)有潮流模塊。在這種情況下，潮流母線(xiàn)模塊必須連接到三相模塊（三相斷路器、 三相型線(xiàn)路、三相變壓器等）的任何一相上。Implicit Buses 隱含的母線(xiàn)If you omit to connect a Load Flow Bus block to a load flow block, the Load Flow tool will automatically define an implicit (internal) load flow bus for that block. The bus base voltage of this implicit bus is set to the same value as the nominal voltage of the load flow block. When several load flow blocks are connected together, one nominal voltage is arbitrarily selected among the blocks.如果你在潮流模塊上遺漏了潮流母線(xiàn)模塊，潮流母線(xiàn)模塊會(huì)自動(dòng)為此模塊定義一個(gè)隱藏（內(nèi)部）的潮流母線(xiàn)模塊。這個(gè)隱藏母線(xiàn)的基準(zhǔn)電壓設(shè)置為潮流模塊的額定電壓。當(dāng)幾個(gè)潮流模塊連接到同一條母線(xiàn)上時(shí)，基準(zhǔn)電壓可以為幾個(gè)模塊的額定電壓的任意一個(gè)。Although the Load Flow tool can perform load flow on a model with no Load Flow Bus block in the model (working only with implicit buses), the recommended practice is to connect a Load Flow Bus block everywhere a load flow block exists.盡管潮流工具在沒(méi)有潮流母線(xiàn)模塊的情況下（僅含有隱藏母線(xiàn)）也可以執(zhí)行潮流分析，但扒薦的做法是在任何含潮流模塊的地方連接一個(gè)潮流母線(xiàn)模塊。Dialog Box and Parameters 對(duì)話(huà)框和參數(shù)The Load Flow Bus parameters are used for model initialization only. They have no impact on the simulation performance.潮流母線(xiàn)參數(shù)僅用于初始化模型，對(duì)仿真性能沒(méi)有影響。The block dialog box contains two tabs:Parameters Tab 參數(shù)選項(xiàng)卡Load Flow Tab 潮流選項(xiàng)卡Parameters Tab 參數(shù)選項(xiàng)卡Bus Identificat