Electric System, Control System Models & HMI

魏洪斌WeiHongbin

Catalog

vPower Electric Network

Electric Models – Generator

vPower Virtual DCS

Control System Models

HMI

Discuss…

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Electrical network

Power flow calculation

Real time calculation voltage and power distribution of bus in power plant electric system.

Using the Newton-Raphson iterative method

Calculation of electrical network parameters under stable condition and fault condition,such as short circuit.

Power flow calculation

Electric branch: feeder line

each branch is associated with two nodes.

Electric node:three types: PQ node, PV node and balance node. It is introduced by the need of power flow calculation. For each network, we must set the node type, usually in order to ensure the convergence of power flow calculation and the balance of power, we must set a node to balance the node.

Basic variables

Voltage：V

Active power：P

Reactive power：Q

For each node，we know two of above three variables，PQ or PV

Three-phase AC,Phase,current

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solution

Power flow calculation to lift the voltage at each node, the module to solve the current.

Switching in power flow calculation network will cause the change of the network topology, which needs to be re analyzed.

solution

using Newton Ralphson method.

Before solving the problem, we need to analyze the network topology, and split the network into sub networks (acordingto the balance node). The network portion that is not connected to any active balance node will loss power supply.

Basic module

Bus

Feeder

Switch/Breaker

Transformers

Meters：PT，CT

Generator

Excitation

Motor

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Generator module

调速信号

保护信号

励磁信号 数据传输

输出至励磁系统

电气节点 输出至PT

Integration of vPower power flow algorithm;

before grid connection, generator is the PV node, the calculation of the output voltage and active power; after connected and Excitation saturation is PQ node;

Generator operating vector diagram

Basic generator vector graph

Empty EMF

System voltage

Stator current

Power angle

Power factor

Leading phase

Lag-phase

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Electrical configuration

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Main Wiring Config

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220kv bus as balance node

Generator,connect to turbine.

6KV bus configuration

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Generator bus

6kv bussection IA

6kv bussection IB

Motorprotection Cabinet

Breaker

Load diagram

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DCS simulation mode

The most functions of the actual DCS system are realized by software.

DCS simulation for NPP simulator

Debugging experiment of DCS system

Control strategy research

Realization way

Stimulation

Translator

Reconstruction

Operator Station Operator Station Eginneer Station History Station

Field sensor

Measuring signal

DPU DPU

Upper network

Low level network

Level2

Level1

Level0

High lights

The way of translation

Compared with the manual reconstruction

method, the efficiency is high.

Compared with Stimulation， High

performance to price ratio

And platform integration, good consistency,

to meet the special needs of simulation,

such as the preservation of the conditions,

time scaling, etc.

High fidelity

flexible: Desktop, Classroom, Multi

instance operation , etc

Integrated design

In a unified platform to achieve the

simulation function

Level 0： Process model

simulation

Level 1： Control logic simulation

Level 2： Operation interface

simulation

communication interface

simulation

vPower

In the unified platform to

achieve a variety of

models DCS simulation

5 configuration modes of

IEC61131-3 standard

Develop different translation

tools for each DCS

Integrated design based on vPower

Implemented DCS simulator

Westinghouse WDPFII、

Ovation

siemens TXP(T2000) 、T3000

ABB Symphony

METSO MaxDNA

Foxboro I/A

XDPS4.0,XDPS6.0

Hitachi H5000M、H7000

customized develop

Custom DCS data structure

Coding algorithm library

project verification

Functions, interfaces, and

graphical representations are

same with the actual control

system

Algorithm library

VPOWER电站仿真系统

Engineer station

Automatic make macro

VPOWER电站仿真系统

Engineer station

Engineer station – Simens

Engineer station - ABB

Operator station-Ovation

2016/8/26 VPOWER电站仿真系统

2016/8/26 VPOWER电站仿真系统

Operator station-Ovation

2016/8/26 VPOWER电站仿真系统

Operator station - Simens

2016/8/26 VPOWER电站仿真系统

Operator station - Simens

HTR-PM DCS simulator

ShiDaoWan NPP use Hollysys DCS, a native DCS product.

Cannot use DCS translator, because of the lack of information, NPP is under construction.

So we have to Reconstruction the DCS simulator, Manual modeling,both level1 and level2

Fidelity and Extensibility

Hollysys Lib，CTEC

According to the existing document, redesign

Data, interface, function and CTEC module

three categories: standard library, application library, IO interface library, total of 111

FOI-order inertia

Hollysys simulator modules Standard library: the

controller's internal data signal conversion, comparison, shift, logic operation, basic mathematical operations

A total of 40 modules

Hollysys simulator modules Application library: bistable,

counter, timer, clock ,trigger, BCD conversion, signal generator, bit / byte, math function

A total of 43 modules

Hollysys simulator modules IO interface library: field

equipment control, dimensional conversion, signal quality judgment, equipment simulation model, signal to other systems

A total of 28 modules

DCS simulation

SAMA document

Automatic control

configuration

Manual Control

configuration

Nuclear island control

According to the existing information to complete the design work

Main fan control

Nuclear power control

Main cooler flow control

Main Loop pressure control

Rod Control

Safety Control

CTEC control module is used for modeling

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Conventional island control

Second Loop Devices

Feed water control system

Deaerator Control System

Condenser water level control system

heater water level control system

DEH

Device Operation

nuclear power control system

1Nuclear power protectionHigh Limit

2Rod Upper positionHigh Limit

3Up/down operation buttonUp|Stop|Down

Auto Up Auto down Auto/manual switch

5Rod low positionLowLimit

Positive=UpNegative=Down

Rod

Start up interlock

Power control auto up

Power control auto down

Power control rod speedRod ManualOperation Logic

4Rod Select ButtonSelected

nuclear power control system

Manual rod control logic: In the case of meeting the

safety interlock conditions, the manual control rod operation can be

carried out, including rod selection, rod Up and Down, etc.

Manual Auto

Manual/Auto switchPermit Rod Select

Down

Up

Stop

Rod Operation

Feed water control system PID

controller

Variable speed pumps

Steam generator

secondary side steam system

Water flow rate

Water mass flow

measurement

Water flow to a given value

PID controll

er variable speed pump

bypass control valve

Steam generator secondary side steam

system Evaporator inlet

flow

Pump Speed

The evaporat

or outlet

pressure

Evaporator outlet

pressure measurement

Open Percent

Evaporator outlet

pressure given value

Water flow given value

Water mass flow

measurement

Normal operation

Start-up

Feed water control system

Nuclear Power

Feed water pump Speed control

evaporator outlet pressure

Bypass control valve Launch conditions

Bypass control valve control

Position

Full Opend

Full Closed

Full Opend

Full Closed

Closed-loop device controller

Operation Graphic

According to the available design to draw, 71 main graphics

Common icons and Control Panel

Monitor process variables, operating devices and control circuits

Multiple navigation

Directory

Prev/Next page

Link Button

Graphic Icon design

Different appearance for devices, valves, motor-driven, actionable object, dynamics tag

Click to open panel

Graphic Icon design

Closed

Opened

Opening

Closing

Intermediate state

Alarm

No Signals

Operation panel

Layout

根据现有资料，自行设计

THANK YOU！

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