conductSympowersysterms部分模块翻译

Three windings transformer

三绕组变压器

If

selected,

implements

a

linear

transformer

with

three

windings;

otherwise, it implements a two-windings transformer.

如果选择，可以实现三个绕组的线 性变压器，否则，它实现一个双绕组变压器。

Winding 3 parameters

三次

绕组参数

The

Winding

3

parameters

parameter

is

not

available

if

the

Three

windings

transformer parameter is not selected.

如 果没有选择三绕组变压器，那么三次绕组的参数设定是不可用的。

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.

额定电压

V3

是有效值，单位伏特，电阻单位是标幺值或欧姆，漏感单位是标幺

值 或亨利。标幺值数值依据变压器的额定功率和三次绕组的额定电压设定。绕

组的电阻和电 感设置为

0,

可以实现一个理想的绕组

.

Magnetization resistance and inductance

磁化电阻和磁化电感

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

%

of

active

and

reactive core

losses,

at nominal voltage, use Rm = 500 pu and Lm = 500 pu.

磁化电阻和磁化电感模拟了铁心 有功和无功损耗。当选择三绕组变压器时，标

幺值数值根据变压器的额定功率和一次绕组 的额定电压决定。例如，在额定电

压下，指定铁心有功和无功损耗的

%

，需要设置

Rm = 500 pu and Lm = 500 pu.

。

Measurements

测量

Select

Winding

voltages

to

measure

the

voltage

across

the

winding

terminals of the Linear Transformer block.

选择“

绕组电压

”

，通过线性变压器模块的绕组端子来测量电压。

Select

Winding

currents

to

measure

the

current

flowing

through

the

windings of the

Linear Transformer block.

< /p>

选择“

绕组电流”

，测量通过线性变压器 模块绕组的电流。

Select

Magnetization

current

to

measure

the

magnetization

current

of

the

Linear

Transformer block.

< br>选择“

磁化电流

”

，测量通过线 性变压器模块的磁化电流。

Select All voltages and currents to measure the winding voltages and

currents plus

the magnetization current.

选择“

所有的电压和电流

”

，测量绕组电压、电流 和磁化电流。

Place

a

Multimeter

block

in

your

model

to

display

the

selected

measurements during the

simulation.

将万用表块放置在你的模型中，在模拟过程中会显示要测的量。

In the Available Measurements list box of the Multimeter block, the

measurements are

identified by a label followed by the block name.

在万用表的可测量的列表框中，测量 值由模块名称加标签来标识。

Limitations

限制因数

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.

绕组可以悬空（即不连接到电路 的其余部分）

。然而，悬浮绕组和主电路之间会

自动添加内部电 阻。这种内部连接不影响电压和电流测量。

Due

to

limitations

inherent

to

graph

theory

and

its

application

to

electric

network

theory

as

implemented

in

SimPowerSystems

software,

the

following topologies are unsolvable:

由于图论的固有局限性，其在电网络 理论及其在

SimPowerSystems

软件中的应

用实现，都无法解决下面的拓扑结构：

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 路仅仅包含理想变压器的次级绕组（例如，三相变压器的三角形连接的理想

的次级绕组）

。为了解决这个拓扑问题，你可以在回路中串联一个小电阻。

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.

回路仅仅包含理想变压器的次 级绕组和理想电压源。为了解决这个拓扑问题，

你可以在回路中串联一个小电阻。

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.

回路仅仅包含理想变压器的次级绕组和电容器。为了解决这个拓扑问题，你可

< br>以在回路中串联一个小电阻。

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.

一个理想变压器最初至少有一个节点，它的所有拓 扑结构都一些元素关联，这

些元素仅仅包含理想变压器的初级绕组和电流源（例如，中性 点未接地的星形

连接的三相初级绕组）

。为了解决这个回路拓扑 问题，你可以在问题节点处接入

一个小阻抗。

Load Flow Bus

潮流母线

Identify and parameterize load flow bus

识别和参数化潮流母线

Library

库

Measurements

测量元件

Description

说明

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:

潮流总线模块用在三相模型中，用来指定母线的位置和参数，以解决负载流量。

潮流由

PowerGUI

的潮流工具解决

。通常，你可以将潮流母线模块连接到三相潮

流模块的任意一相（

A

，

B

或

C

）

，这个潮流模块指的是功率和电压可以指定的

SimPowerSystems

模块。它们分别是：

●Asynchronous Machine

异步电动机

●Simplified Synchronous Machine

简化同步电动机

●Synchronous Machine

同步电动机

●Three

-Phase Dynamic Load

三相动态负载

●Three

-Phase Parallel RLC Load

三相

RLC

并联负载

●Three

-Phase Programmable Voltage Source

三相可编程电压源

●Three

-Phase Series RLC Load

三相

RLC

串联负载

< br>

●Three

-Phase Source

三相电源

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.

潮流一旦得到解决，母线电压幅值和相角将作为 注释显示在潮流母线模块下方。

每个总线的潮流的工具列表将有功和无功转移到其他母线 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).

当几个潮流模块连接到同一条母线上时，只需一个潮 流母线模块。你也可以在

感兴趣监测潮流的地方连接潮流母线模块，即使此处没有潮流模 块。在这种情

况下，潮流母线模块必须连接到三相模块（三相断路器、

< br>

三相π型线路、三相

变压器等）的任何一相上。

Implicit Buses

隐含的母线

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.

如果你在潮流模块上遗漏了潮流母线模块，潮 流母线模块会自动为此模块定义

一个隐藏（内部）的潮流母线模块。这个隐藏母线的基准 电压设置为潮流模块

的额定电压。当几个潮流模块连接到同一条母线上时，基准电压可以 为几个模

块的额定电压的任意一个。

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.

尽管潮流工具在没有 潮流母线模块的情况下（仅含有隐藏母线）也可以执行潮

流分析，但扒荐的做法是在任何 含潮流模块的地方连接一个潮流母线模块。

Dialog Box and Parameters

对话框和参数

The

Load

Flow

Bus

parameters

are

used

for

model

initialization

only.

They

have no impact on the simulation performance.

潮流母线参数仅用于初始化模型，对仿真性能没有影响。

The block dialog box contains two tabs:

Parameters Tab

参数选项卡

Load Flow Tab

潮流选项卡

Parameters Tab

参数选项卡

Bus Identification

母线确认

Enter a meaningful alphanumeric string. The Bus Identification string

appears below the block as a block annotation.

输入一个有效的字母数字字符串。字符串作为注释出现在模块下方。

Base voltage (Vrms phase- phase)

基准电压（线电压）

The base voltage is usually the same as the nominal voltage of the load

flow

blocks

connected

to

the

Load

flow

Bus

block.

The

Base

voltage

values

appears below the block as a block annotation.

基准电压通常与连接在潮流母线模块上的潮流模块的额定电压相等。基准电压

值作为注 释出现在模块下方。

Swing bus or PV bus voltage (pu)

摆幅母线或

PV

母线电压（标幺值）

Specify the required bus voltage magnitude, in pu. Depending on the bus

type

of

the

load

flow

blocks

connected

at

that

bus,

this

voltage

corresponds to the swing bus voltage or the PV bus voltage.

以标幺值指定规定 的母线电压的幅值。根据连接在负载潮流模块上的潮流母线

的类型，这个电压对应的为摆 幅母线电压或

PV

母线电压。

Swing bus voltage angle (degrees)

摆幅母线电压相角（度）

The swing bus voltage angle is used as a reference to compute voltage

angles of all other buses in the model.

摆幅母线的电压 相角作为计算模型中所有其他母线电压相角的参照。

Note

注意

The bus type (PV, PQ, or swing) is not defined in the mask of the Load

Flow

Bus

block.

The

reason

is

that

you

may

have

several

machines

and

voltage

source blocks with different generator type parameters connected at the

same bus. The Load Flow tool determines the resulting bus type.

母线的类型（

Swing

、

PV

、

PQ

）由潮流工具决定。

（

Powergu i

）

Load Flow Tab

潮流标签

Load flow solution: bus voltage V_LF (pu)

负载潮流的解决方案：母线电

压

V_LF (pu)

Displays

the

resulting

bus

voltage,

in

pu,

once

the

load

flow

is

solved.

This

parameter

is

intentionally

grayed

out

because

it

is

updated

automatically by the Load Flow tool. The parameter value appears below

the block as a block annotation.

一旦负载流量得到解决，显示由此产生的母线电压，以标幺值。此参数故意是

灰色的， 因为它是由潮流工具自动更新。参数值作为注释出现在模块下方。

Load flow solution: bus voltage Vangle_LF (degrees)

负载潮流的解决方案：母线电压相角

Vangle_LF (degrees)

Displays

the

resulting

bus

voltage

angle,

in

degrees,

once

the

load

flow

is solved. This parameter is intentionally grayed out because it is

updated

automatically

by

the

Load

Flow

tool.

The

parameter

value

appears

below the block as a block annotation.

一旦负载流量得到解决 ，显示由此产生的母线电压相角，单位是度。此参数故

意是灰色的，因为它是由潮流工具 自动更新。参数值作为注释出现在模块下方。

Example

举例

The

power_turbine

demo contains two Load Flow Bus blocks. The B1 block

is

connected

to

the

5

MW

Three-Phase

Parallel

RLC

Load

and

to

the

Synchronous Machine load flow blocks. The B2 block is connected to the

10 MW Three-Phase Parallel RLC Load and to the Three- Phase Source load

flow blocks.

power_turbine

示例包括两个潮流母线模块。

B1

模块连接在

5 MW

的三相