Juergen Zimmermann - ABB Australia PTY LTD

REMOTE AREA POWER SUPPLY CONFERENCE - SYDNEY , 21-22ND MARCH 2017

Microgrid Design Tools & ProcessesFrom small remote community to large industrial mine site

Juergen Zimmermann, ABB Australia

1. ABB Australia

2. Story of ABB Microgrid Technology in Australia

3. Managing integration risk & cost

Case Study of 100kW Product approach

Case Study of 30MW Solutions approach

4. Summary

March 21, 2017 Slide 2

Agenda


A global leader in power and automation technologies

Power & Automation

Utilities Transport & InfrastructureIndustry

Renewables

Grid automation / digitalization

Microgrids

Smart upgrades

Electrification penetration

Energy storage

Productivity

Energy efficiency

Automation penetration

Internet of Things, Services and People

Power quality / reliability

Emerging markets

Urbanization

Data management

Electric transport

Energy efficiency

Power quality / reliability

Decentralized power generation

Power & Automation “for the site”Power & Automation “for the grid”

ABB Australia in brief


Headquartered in Sydney, New South Wales

Orders 2016: $651M AUD

1,345 employees

In Australia, global R&D and technical lead centres for Enterprise Software, Microgrids and Metal Enclosed Capacitor Banks

Manufactures LV systems, instrumentation systems and HV capacitors and power quality equipment, and Metal Enclosed Capacitor Banks

Sales offices and Service centres across Australia supporting all ABB systems and products

Enabling cost effective and resilient access to power supply


Microgrids in energy and grid transformation

Power grid

Power grids are larger conventional and

spread out grids with high voltage power

transmission capabilities.

Microgrid

Distributed energy resources and loads that

can be operated in a controlled, coordinated way either connected to the main power grid or

in “islanded”* mode.

Nanogrid

Low voltage grids that typically serve a single

building

Focus on System Integration and Grid Stabilization


ABB in Microgrids

A History of firsts in increasing renewable energy penetration

ABB Microgrids in Australia


1998 – 40% RE penetration

– Wind Diesel System

• Western Power

• Denham Power Station

• 3 x 230kVA wind turbines


– Solar Diesel Stabilzing System

• DeGrussa Mine

• 10MW Solar PV

• 4/6 MW battery stabilizing system

1990 – energy efficiency

– Diesel Battery Storage System

• PowerWater Corporation

• 10 sites across NT

• 60kW storage for spinning reserve


– Solar Diesel Storage System

• Marble Bar & Nullagine Stations

• 300kW SolarPV

• 500kVA flywheel stabilising system

Today ABB has delivered over 40 Microgrids globally

27 years of building Microgrid Knowledge

Transition from a centralized to a distributed grid

March 21, 2017 Source: EY – KGSA Microgrid conference October 2015 Slide 8

Global energy trends

Trends relating to Microgrids

- Solar PV installed costs are continuing to reduce with experience from installations

- Cost of Storage continue to decrease with increase in production volumes and supply chains establishing

- New entrants to market challenge industry practises by introducing new technology

- New business models attract investors to own and operate assets on behalf of utilities and mining companies

- Government support shifting from RE to enable higher penetration of RE through storage and grid integration

What is the challenge?

Microgrid Design Tools & Processes


Design standards

Procurement process

2

4

Diversity of Sites

Opportunities for optimized integrated designs between suppliers

– Once off designs lead to higher costs

1

…leading to high integration cost and risk

Supply chain integration

3

Fixed procurement processes do not allow for close collaboration

– Risk of unknown is costed into projects

Every site is different

– High project development and execution cost; understand business case

Lack of Microgrid Integration and Storage design standards

– Increase in engineering cost to write and comply with specifications

Two approaches

Managing System Integration Risk


Modular design with configurable functions

1. Product data sheet and model library define performance

2. Interfaces and functions configurable; type tested and future software updates available

3. Product support through a service team

• Product may not fit all project requirements

Apply known power system design processes

1. Engineering process delivers a set of specifications and performance standards

2. Control interfaces (diesel, solar, battery, remote) are customized and often require onsite testing

3. System support depends on specialist who customized/commissioned the system

• Project/Customer needs designed into solution

ABB Microgrid Offering includes Products and Solutions

Product: 100kVA to 500kVA Solution: 1MVA to X0MVA

Modular storage system with built in Microgrid Functionality

Case Study: PowerStore with Microgrid Automation

March 21, 2017 Power ratings are continousSlide 11

– 6 power ratings from 90kVA to 540kVA

– Storage times from 0.5 to 2 hours

– Modular Indoor/Outdoor enclosure

– Compact design for LV grid connection

– 200% overload capability

Lower cost through standard design

Virtual Synchronous Generator

Standard Interfaces and configurable applications



Stabilize Power & Store Energy

– Inbuilt AVR for voltage control

– Inbuilt Governor for frequency control

– System inertia function

– Parallel Operation of multiple PowerStore

– Allows standalone and blackstart operation

Applications

– Diesel & Storage

– Diesel & Storage & Solar

– Diesel & Solar

Lower Integration risk

Virtual Synchronous Generator

Simplified design process and improved business case



– Use HOMER modelling tool to size system components

• Solar PV array

• PowerStore kVA and kWh

• Battery power profile

– Manage control interface by using

• OEMs specific diesel interface

• Fixed battery interface

• Open standard for SolarPV interface

– Manage function/software integration by

• Using ABB control software within HOMER Energy

Lower risk and cost lead to improved business case

Solar Diesel System Design

CapExSolar Resource

Fuel price

Sensitivity Analysis of Solar/Diesel/Storage

IRR

Use of standard power system design processes to minimize integration risk

Case Study: 30MW Battery Energy Storage for offgrid mining load


Requirements

– Online Gas Turbine to be replaced with battery energy storage system

– BESS needs to integrate with existing gas turbines to share active and reactive load

– In the event of a GT trip BESS needs to operate standalone

Business Case

– 2to/hr fuel gas savings

– Gas @ $7/GJ

– App. $10-15Mill savings per annum

Payback time <5 years

Application: Spinning Reserve for Gas Turbine

Main building blocks

30MW/15min PowerStore System

March 21, 2017 Battery Container image KokamSlide 15

Battery Containers

– 5 x 40ft containers

– 4C/1.5 MWh each 40ft

Integration System

– ABB Microgrid Plus System to integrate

• 4 x Gas Turbines

• 5 x PowerStore Battery

• Interface to onsite SCADA system

PowerStore Containers

– 5 x 40ft containers

– 6MVA peak each 40ft

Transformers and Switchgear

– 5 x 0.37/33kV PStore unit transformers

– 1 x 33/66kV power transformer

– 33kV Switchboard

Complex system integration into existing power station

Single Line Diagram

PowerStore 30MW/15min


Title 33kV Switchboard

Multidisciplinary teams required to deliver cost optimized design

Engineering Design Tools and Processes


33kV/66kV/132kV

– Pstore Unit transformers

– Main power transformers

– Protection system

– Earthing system

– Local light & power supply

– Site testing setup

..how long is a piece of string?

– Obtain verified models of existing generation plant

– Provision of Data Sheets, User Guides, Dynamic Models, Source code, confirmation tests, R2 tests

– Loadflow, Dynamic, protection and EMT modelling

– Negotiate generator performance standards

Getting quality baseline data

– Identify existing control system issues

– Work from Concept to Functional Specification

– Define test cases and commissioning setup

– Determine KPIs of system performance

– Future expansion?

– Design Communication System

Understanding site conditions

– Space constraints

– Allowance for expansion?

– Site fire management

– Transport & Logistics

– Working within an operational power plant

….not just a matter of buying a battery

Electrical Design Power System Modelling Integration Design Site Layout & Civil Design

Managing Microgrids System Integration Risk and Cost

Summary


Business case drives requirements for each site

– Product approach

• Known business cases allow short project development time

• Integration simplified through standard interfaces

• Modular integrated battery & inverter design reduces cost

– Solution approach

• Power System integration issues can be managed by using common industry tools

• Understand the baseline; how is the system really operating today and have existing models been verified?

• Collaborate to identify how value of BESS can be monetized

ABB delivers Products and Solutions supported by a local engineering team

Two approaches using Products and Solutions