THE TRES AMIGAS

louisianabodyΗλεκτρονική - Συσκευές

21 Νοε 2013 (πριν από 3 χρόνια και 6 μήνες)

62 εμφανίσεις

THE TRES AMIGAS
SUPERSTATION

IMPLEMENTING HVDC WITH EXISTING INTEGRATED AC SYSTEMS

CIGRE 2012

UNITING THE NATION’S ELECTRIC POWER GRID

1

20
th

CENTURY ELECTRIC


Utility Controlled

2

21
st

CENTURY ELECTRIC

Customer Desires &
Configurations

3

THREE MAJOR TECHNICAL CONSIDERATIONS
IN HVDC IMPLEMENTATION:



1.
HVDC IMPLEMENTATION WITH AC SYSTEMS

2.
INFUSION OF POWER ELECTRONICS

3.
THE DISPATCH OF POWER

4

IMPLEMENTING HVDC CONNECTIONS

Long Distance Transmission


Line losses


System Voltage Stability/Levels


Reactive Power Loading


Steady state


Transient Stability


Subsynchronous

Oscillations


Latency issues (
ie

Spinning Reserves)


Inductive and Capacitive limitation
factors


Interconnections


Uncontrolled Load flow
problems and bottlenecks


Congestion Issues


Inter Area loop flow


Cascading Blackouts


Oscillation Stability


Frequency control


Voltage Stability


Physical interactions between
power systems


Interconnected

AC
Systems require a huge investment in study & analysis

5

Implementing HVDC connections


The only way to interconnect large AC power grids with different phases is
via HVDC (High Voltage Direct Current) facilities


AC/DC/AC Stations


Hybrid Transmission systems (AC/DC…DC/AC)


Multipoint nodes


Long distance DC Transmission lines


HVDC has the ability to control the direction and magnitude of the power
flow at each node of a multipoint configuration thereby facilitating the
precise needs of the interconnection points without adverse impacts to
the interconnecting grid


HVDC has the flexibility not only to adapt to grids with different AC system
real time characteristics but to also facilitate optional ancillary services to
each interconnection node




The Evolution to Fast Acting HVDC

6


Implementing HVDC connections

China: Current HVDC National Grid Plan

7

Implementing HVDC connections

Europe: Extended Grid Plan


From Iceland
(Northwest) to
Israel (Southeast)

= 3,200 mi


Concept of grid is
25,000 miles of line


Solar Power

Wind Power

Geothermal

Hydro

Biomass

The new high
-
voltage network would range from the Sahara to the polar cap. The concept calls for main lines that are 40,000 kilo
meters long. And
parts of it already exist.

Connections
already in place

or planned

Vision of ABB

and DLR

8

REQUIRED:



1.
DEVELOP A MULTINODE HVDC OVERLAY
SCHEME


2.
DEVELOP THE EMS/INTERFACES TO ENABLE
AC EMS TO RELIABLY OPERATE HVDC
OVERLAY CONNECTIONS


3.
DEVELOP THE SECTIONALIZING EQUIPMENT
TI ENABLE FAULT RECOVERY AND SAFE
REAL TIME OPERATIONS

IMPLEMENTING HVDC CONNECTIONS

9


PRESENTLY, ONLY 30% OF ALL POWER
GENERATED USES POWER ELECTRONICS
SOMEWHERE BETWEEN THE POINT OF
GENERATION AND END USE.


BY 2030, 80%OF
ALL ELECTRIC POWER WILL FLOW
THROUGH POWER ELECTRONICS .”

Power

electronics

moves

beyond

devices

that

simply

provide

increased

awareness,

such

as

Phasor

measurement

systems
.


These

devices

will

respond

to,

interface

with

and

control

real

time

power

flows
.


From USDOE Office of Electric Delivery and Energy
Reliability

INFUSION OF POWER ELECTRONICS

10

Benefits of Power electronics


Increased power system reliability and security


Increased efficiency and loading

of existing transmission and distribution
infrastructure


Huge gains in real time power flow control


Improved voltage and frequency regulation


Improved power system transient and dynamic stability


More flexibility in
siting

transmission and generation facilities


The distinction between consumer devices and utility devices will largely
be eliminated electrically

INFUSION OF POWER ELECTRONICS

11

21st century smart grid
technologies compared with
those in use today.


Source: IBM Institute for Business Value

INFUSION OF POWER ELECTRONICS

12


The Grid is RELIABLE as long as:

GENERATION = LOAD



It is a single machine that operates at the speed of light


Information is the key to successfully integrate HVDC
(
multinode

fast acting) and secure the advantages of
the
availbility

of the rapid advances in Power
Electronics

THE DISPATCH OF POWER

13

DISPATCH EQUATION




Dispatch Equation



Generation + Imports (or
-

Exports)=Load


Generators (known)


Ties (Import/Export) (known)


Load is increasingly being measured in real
-
time


Transmission with real time measured


New Solution every 5 minutes (SCED)


Generation and Load share equally in the


benefits of reliable electric operations



The Dispatch of the Power
-

The “CASH” Register

14



Tres

Amigas

-

Scope
of the Business

Source:
The National Institute of Standards and
Technology (NIST) Smart Grid Conceptual Model


Transmission
:
The fundamental offering of
Tres Amigas is transmission service using
systems of advanced HVDC,
multinode

design
and Power Electronics.




Operations
:
Tres
Amigas
Operations will
serve as the
hub for both the transmission
operator and market/exchange services.
These functions will utilize Power Electronics
and advanced technologies to provide for
firming, storage, multiphase use generation
and storage.


Clean:
Tres

Amigas

will be a totally green site
using very little natural resources empowering
opertions

to enable the clean dispatch of
esources
.


The Tres
Amigas Transmission Superstation can be mapped against the NIST Smart Grid Conceptual
Model to illustrate the scope of the Tres Amigas business.

15

The
Tres

Amigas

SuperStation

16


The Electric industry is rapidly evolving to a more customer driven and controlled
configuration.


HVDC is worldwide the solution to “improve” the historically developed and
mostly dependable integrated AC systems.


Implementing HVDC successfully:


Multinode

solutions


Integration with AC control systems


Equipment to operate safely in real time


The advent of sophisticated power electronics is the means to not only provide
the real time situational awareness to improve the reliable operations of the
existing integrated AC systems, but will leap the industry to the future with
devices that will respond to, interface with and control power flows.


Both load and Generation should benefit equally in the system dispatch.


SUMMARY

17

Tres Amigas SuperStation….


Uniting the Electric Grid