Testdrive demo electric ship onboard power system
Download
1 / 43

TestDrive Demo Electric Ship Onboard Power System - PowerPoint PPT Presentation


  • 88 Views
  • Uploaded on

TestDrive Demo Electric Ship Onboard Power System. OPAL-RT TECHNOLOGIES Montreal, Quebec, Canada www.OPAL-RT.com. EMS Rev. 001, March, 2009. Contents. Model Description TestDrive Panel Introduction Test Scripts Model link: onboardPS_ESTS_mdl1v19b_r2008a.mdl

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'TestDrive Demo Electric Ship Onboard Power System' - aizza


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Testdrive demo electric ship onboard power system

TestDrive DemoElectric Ship Onboard Power System

OPAL-RT TECHNOLOGIES

Montreal, Quebec, Canada

www.OPAL-RT.com

EMS

Rev. 001, March, 2009


Contents
Contents

  • Model Description

  • TestDrive Panel Introduction

  • Test Scripts

    Model link: onboardPS_ESTS_mdl1v19b_r2008a.mdl

    (open with Matlab 7.0.1, if open with higher version quit without save)


Model schematic
Model Schematic

The Electric Ship Onboard Power System

In this 1-target model, only Zone 1 and 2 are modeled.

3


Model schematic1
Model Schematic

Load Details

Hotel load:

Non-critical ac load

Induction motor (IM)

Critical load

Constant power load: Non- critical dc load

4


Model description
Model Description

This model simulate a electric ship onboard power system.

Two zones are simulated in a 1-target model and four zones are simulated in a 2-target model.

It can be used for system steady state and transient studies. During a fault, the onboard power system is reconfigured to avoid failure of critical loads.

5


Model description1
Model Description

  • CPU allocation and Signal exchange media

Two zones are simulated in a 1-target model

and four zones are simulated in a 2-target model.

6


Model description2
Model Description

Model’s look in Simulink/SPS

console

Generators

@ Zone1

Generators

@ Zone2

Load 1

@ Zone1

Load 1

@ Zone2

Load 2

@ Zone1

Load 2

@ Zone2

7


Model description3
Model Description

System Load

Induction machine

Hotel

load

Constant power load

8


Testdrive panel introduction
TestDrive Panel Introduction

  • Control Panel and System Diagram

IM load select

Scope select

Fault

setup

AC load break On/Off

Const. load ref. set

TSB compensation

IM control

select


Testdrive panel introduction1
TestDrive Panel Introduction

IM Measurement Panel

IM 3-phase voltages

IM 3-phase currents

IM active & reactive powers

IM Torques (elec. & Mech.), mech. Speed, modulation index

10


Testdrive panel introduction2
TestDrive Panel Introduction

Load Measurement Panel

Hotel load 3-phase voltages

Hotel load 3-phase currents

Hotel load P & Q

Constant Load Power

11


Testdrive panel introduction3
TestDrive Panel Introduction

Bus Measurement Panel

Port and starboard bus Voltages

dc voltages of Gen1 & collector bus

dc currents of Gen1 & collector bus

powers of Gen1 & collector bus

12


Testdrive panel introduction4
TestDrive Panel Introduction

System Schematic

13


Test scripts
Test Scripts

Steady state

Steady state

IM control

Hotel load and Constant load variations

Time Stamped Bridge compensation

Fault studies

Generator bus fault

Port bus fault

14


Test scripts1
Test Scripts

Steady state

Steady state

IM control

Hotel load and Constant load variations

Time Stamped Bridge compensation

Fault studies

Generator bus fault

Port bus fault

15


Test script steady state
Test Script: Steady State

1.1 Steady state

  • In Control Panel, keep parameters at default values. Select buses port/starboard and which zone and load to observe the waveforms.

Control Panel

16


Test script steady state1
Test Script: Steady State

1.1 Steady state

bus voltages are at 1pu in steady states

Bus measurement Panel

17


Test script steady state2
Test Script: Steady State

1.1 Steady state

Hotel load power is 1pu, constant power is 0.5pu as set in the control panel. (The base value of the two powers are on their own ratings)

Load measurement Panel

18


Test script steady state3
Test Script: Steady State

1.1 Steady state

IM measurement Panel

19


Test script steady state4
Test Script: Steady State

1.2 IM control

  • In Control Panel, select IM load, IM control mode and reference, and perturbation mode and magnitude.

Control Panel

20


Test script steady state5
Test Script: Steady State

1.2 IM control

In this test, the IM load ‘torque=omege^2’, control mode=‘speed control’,

Speed reference = ‘0.8pu’, perturbation mode =‘Triangle’, perturbation value=‘0.1pu’ are selected.

the IM speed tracks to its reference

IM measurement Panel

21


Test script steady state6
Test Script: Steady State

1.2 IM control

In this test, the IM load ‘torque=omege^2’, control mode=‘speed control’,

Speed reference = ‘0.8pu’, perturbation mode =‘Triangle’, perturbation value=‘0.1pu’ are selected.

Bus measurement Panel

22


Test script steady state7
Test Script: Steady State

1.3 Hotel load and Constant load variations

  • In Control Panel, select to switch On/Off of one branch of Hotel load.

  • Set the constant load power reference.

Control Panel

23


Test script steady state8
Test Script: Steady State

1.3 Hotel load and Constant load variations

In this test, ‘ac_load_break’ = ‘Off’, ‘const_ld_ref’=1.5pu

the Hotel load current and power reduced to 0.2 pu (the load of 0.8 pu is switched off)

the constant power load consumes a power of 1.5 pu, same as the reference

Load measurement Panel

24


Test script steady state9
Test Script: Steady State

1.4 Time Stamped Bridge compensation

  • In Control Panel, switch the ‘TSB compensation’ ON/OFF to see its effects on the waveforms.

Control Panel

25


Test script hvac fault
Test Script: HVAC Fault

1.4 Time Stamped Bridge compensation

  • To have a close view of waveforms, show acquisition group 1, set frame size = 50 ms.

Show acquisition

Group 1, set frame

Size = 50 ms

26


Test script steady state10
Test Script: Steady State

1.4 Time Stamped Bridge compensation

Vdc has ±1% variations

Vdc has ±0.5% variations

Without RTE compensation

With RTE compensation

bus measurement Panel

27


Test script steady state11
Test Script: Steady State

1.4 Time Stamped Bridge compensation

IM Voltages has more distortion

IM currents has more distortion

IM elec. torque has larger ripples

Without RTE compensation

With RTE compensation

IM measurement Panel

28


Test script steady state12
Test Script: Steady State

1.4 Time Stamped Bridge compensation

Hotel load Voltages has more distortion

Hotel load currents has more distortion

Power of constant power load has larger ripples (±50% vs. ±7% )

Without RTE compensation

With RTE compensation

IM measurement Panel

29


Test scripts2
Test Scripts

Steady state

Steady state

IM control

Hotel load and Constant load variations

Time Stamped Bridge compensation

Fault studies

Generator bus fault

Port bus fault

30


Test script fault studies
Test Script: Fault Studies

2.1 Generator bus fault at Zone 1

  • In Control Panel, select the fault being ‘permanent’ or ‘periodical’, set fault = ‘Generator bus’.

Control Panel

31


Test script fault studies1
Test Script: Fault Studies

Gen1 and collector bus voltages drop to zero during the fault.

2.1 Generator bus fault

The system reconfigure its connection by switching off the fault generation group and keeps port and starboard bus Voltages 1 pu

As fault cleared, Gen1 and collector bus voltages rising up.

Generator is re-connected 0.1s after the fault is cleared. Vdc drops to 0.8 pu because Vdc_gen has not recovered to 1pu at that moment.

measurements @ Zone 1

Bus measurement Panel

32


Test script fault studies2
Test Script: Fault Studies

2.1 Generator bus fault at Zone 1

In the control panel, select ‘scope selection’ to ‘zone 2 load 1’.

Port and starboard bus voltages in Zone 2 have same profile as in Zone 1

Generator group in Zone 2 is affected.

Adjusting the generator reconnection policy (e.g. delay time) can avoid voltage drop on port and starboard buses.

measurements @ Zone 2

Bus measurement Panel

33


Test script fault studies3
Test Script: Fault Studies

2.1 Generator bus fault at Zone 1

The fault has little effects on the hotel load and constant power load.

The visible effects is due to dc voltage drop when the generator group is re-connected

measurements @ Zone 1

Load measurement Panel

34


Test script fault studies4
Test Script: Fault Studies

2.1 Generator bus fault at Zone 1

The visible effects is due to dc voltage drop when the generator group is re-connected

measurements @ Zone 1

IM measurement Panel

35


Test script fault studies5
Test Script: Fault Studies

2.2 Port bus fault at Zone 1

  • In Control Panel, select the fault being ‘permanent’ or ‘periodical’, set fault = ‘Port bus’.

Control Panel

36


Test script fault studies6
Test Script: Fault Studies

Port bus Voltage drop to zero during the fault.

2.2 Port bus fault at Zone 1

Starboard bus voltage remains 1 pu

The system reconfigure its connection to isolate the port bus of Zone 1. Voltages of port bus at other zones, and generator bus at Zone 1 stay around 1 pu.

Port bus at Zone 1 reconnects to adjacent zones 0.05s after fault cleared.

Generators reconnect 0.1s after the fault cleared.

measurements @ Zone 1

Bus measurement Panel

37


Test script fault studies7
Test Script: Fault Studies

2.2 Port bus fault at Zone 1

In Control Panel, select ‘port bus’ and loads in Zone 1.

All the non-critical loads connected to port bus fail during fault

Zone 1 Port Bus

load measurement Panel

38


Test script fault studies8
Test Script: Fault Studies

2.2 Port bus fault at Zone 1

In Control Panel, select ‘port bus’ and loads in Zone 1.

IM, as a critical load, works normally due to its redundant power supply: it is connected to both port and starboard buses.

Zone 1 Port Bus

IM measurement Panel

39


Test script fault studies9
Test Script: Fault Studies

2.2 Port bus fault at Zone 1

In Control Panel, select ‘starboard bus’ and loads in Zone 1.

All the non-critical loads connected to starboard bus work normally during fault

Zone 1 Starboard Bus

Load measurement Panel

40


Test script fault studies10
Test Script: Fault Studies

2.2 Port bus fault at Zone 1

In Control Panel, select ‘port bus’ and loads in Zone 2.

Port bus at Zone 2 remains 1 pu since during the fault it is disconnected from Zone 1

There is oscillations when reconnection. It can be improved by system design (i.e. a reactor between adjacent zones).

measurements @ Zone 2

Bus measurement Panel

41


Test script fault studies11
Test Script: Fault Studies

2.2 Port bus fault at Zone 1

In Control Panel, select ‘port bus’ and loads in Zone 2.

All the non-critical load connected to port bus at Zone 2 only has little effects during reconnection after the fault is cleared.

Zone 2 Port Bus

load measurement Panel

42


Thanks
Thanks

End of Electric Ship Onboard Power System Demo.

Questions and comments?

43


ad