Goldwind - Microgrid Case Study

Goldwind MicrogridCase Study

Wind Industry Forum – March 2015

Steven Nethery

Copyright © Goldwind Science & Technology Co., Ltd 1

Etechwin Microgrid Solutions

1 Wind Turbine Experience for Microgrids

2 Advanced Microgrid solutions using extension of Goldwind’s expertise

3 Case Study - Goldwind / Etechwin installing more microgrids


3

Goldwind2.5MW

Super Capacitors used inAdvanced Pitch System

Full Power ConverterIGBT active control

Park Level EnergyManagement Systems

Goldwind are leveraging windfarm experience in Microgrid solutions

is a specialist electronic company within the Goldwind group


Component Technology Manufacturer

Generation Wind Turbines

Solar PV Supplier

Micro Gas Turbines Supplier

Diesel Engines Supplier

Storage Super Capacitors

Fixed Battery Supplier

Flow Battery Supplier

Control WTG Converters

Solar PV Inverters

Energy Management System

Converters for other Technology

Goldwind are leveraging windfarm experience in Microgrid solutions






Capacity：500kW1. Polycrystalline silicon 490kW2. Single crystal silicon 5kW3. Cadmium telluride thin film 5kW

Type：GW 109/2500kW Height：80m

Land size：91271.6 m2

Load：200kW – 2200kW

Goldwind Beijing Headquarters

Solar Photovoltaic

Wind Turbine

Vanadium flow: 200kW*4hLithium battery: 200kW*4hSuper-capacitor: 200kW*10s

Energy Storage System

Cogen micro gas turbine: 2 x 65 kW

Micro-gas Turbine

Copyright © Goldwind Science & Technology Co., Ltd6

Architectural Drawing

Demonstration Project of Goldwind Microgrid

Multiple Types of Renewable Energy & Storage

2.5MW Wind Turbine Converter System

500kW PV

Vanadium Redox Batteries


Goldwind Microgrid Demonstration Project

Prioritising Fuel Sources


Grid Supplied Electricity

Demonstration Project of Goldwind Microgrid


Integrated Solution

Renewable Energy + Storage + Gas Cogeneration

2 x 65kW

Loads

Energy Management System + Super Capacitors


Power supply and load system of Goldwind

headquarters

电容

Energy control

system of the smart microgrid

Photo-voltaic

Lithium battery

Micro gas

turbine

Super-capacitor

VRFB

Energy control system of the smart micro grid

Integrate and maximise the proportion of

renewable energy power generation

Coordinate island and the grid-connected

operation whilst ensuring the stability of power

supply

Adaptable control interface able to control

different generation, load and storage technologies

Flexible configuration allowing customised

system operation and control strategy

Energy Management System of Goldwind Microgrid


Automated, Real Time, High Speed information monitoring including power flow, power resources status, power quality

In grid connected mode, EMP will prioritise the lowest cost energy source.

In off-grid mode, mitigate disturbances and synchronous oscillation

High Speed event recording

Capability for control of bi-directional power supply

(eg export to and import from the grid)

Support Black Start



EMS + Super Capacitor mitigates voltage disturbances

0 100 200 300 400 500 600-400

-300

-200

-100

0

100

200

300

400

0 100 200 300 400 500 600 700 800-400

-300

-200

-100

0

100

200

300

400

0 100 200 300 400 500 600 700 800-400

-300

-200

-100

0

100

200

300

400

400 450 500 550 600 650 700

240

260

280

300

320

340

360

With super capacitorV

olt

age(

V)

Volt

age(

V)

Volt

age(

V)

Without super capacitor

–––––––– Without EMS + Super Capacitor

–––––––– With EMS + Super Capacitor



EMS + Super Capacitor mitigates current imbalance

Phase A Phase B

Phase C





EMS + Super Capacitor mitigates sub-synchronous oscillation during island mode

0 200 400 600 800 1000 1200 1400 1600 1800 2000-600

-400

-200

0

200

400

600

周期为0.02s

电压实时值

(v)

无超级电容

有超级电容

Phase B

Phase C - RMS



Phase A






20kV北工线

（国家电网）

20kV

变压器6300kVA

10kV

预留

2.0MW

变压器2000kVA

690V

风机进线产业园

回路

江苏南车

回路

江苏金风

回路

开关站

江苏南车

注：红色范围为项目新建范围

负荷

AC

DC

100kW

光伏

200kW 3小时

铅碳

AC

DC

变压器500kVA

100kW

690V

400V

改造1：计量改造

改造2：接入改造

10kV

Load

Jiangsu Goldwind Circuit

Industrial Park Circuit

200kW 3 hrsLead Carbon

Batteries

100kWSolar PV

Goldwind2.0MW PMDD

Case Study – Jiangsu Nanche Industrial ParkCommissioned in Dec 2014

16Copyright © Goldwind Science & Technology Co., Ltd

Allowed quicker access to power for industrial park

Includes new Goldwind 2.0MW prototype

Huayekeji100kW

Case Study – Dafeng Jiangsu Desalination PlantCommissioned in May 2014

Goldwind2.5MW PMDD

Diesel Electric Engine

Batteries

New Desalination Plant5,000 tonnes / day

Runs isolated from the gridMicrogrid Expansion allowed doubling of capacity

Existing Desalination Plant5,000 tonnes / day

Expansion

Goldwind are leveraging Wind Turbine expertise

• Super Capacitors

• Renewables – Wind & Solar

• Full Power IGBT Converters

• Energy Management Systems

Advanced Microgrid solutions using extension of Goldwind’s expertise.

• Inverter connected systems including storage and generation technologies

• Control of loads, storage, and generation with Energy Management System

Goldwind & are installing more microgrid technology at other sites


Goldwind are leveraging Wind Turbine expertise


19

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