Huawei Digital Energy Business Dept.

Omvormers en hun eigenschappen

Huawei Digital Energy Business Dept.

Bouke van der Weerdt, Solutions Manager

Kennismiddag Installatiejournaal – 11 mei 2021

Contents

1. Over Huawei

2. Lekstromen

3. Vlamboogdetectie

4. Optimizers

5. Netkoppeling

Huawei Confidential3

Continuously Creating Values for Customers

Rose to the Challenges, Sustainable Robust Growth

2013

47.6

2014

39.3

63.1

2015

75.1

2016

92.5

2017 2018

105.2

2019

2020 Q3 Sales Revenue

US$ 104.4 Billion YoY increased by 9.9%

190.000+ Employees Worldwide

80.000+ Employees work in R&D

123.0

Carrier

BG

77 5G commercial contracts

560,000 5G base stations shipped

Consumer

BG

Enterprise

BG

240+ million smartphone

estimated shipment of 2019

3+ million

serving more than 700 cities

partners with 228 of Global Fortune 500

2020Q3

104.4

Cloud & AI

BG

Launched a Computing Strategy

the fastest AI processor Ascend 910


Digital energy：Leading Energy Digitalization and Building a Green and

Intelligent World

Smart PV Site Power Data Center Energy mPower Modular Power Supply

Green power

generationEfficient power consumption

Make every PV plant

produce more watt

Make each watt to

carry more bits

Make each watt to

support more hash rate

Make every watt

drive more miles

Enable power consumption

in every industries

Key Technology

PLC CAN NB-IoT Wifi

material(SiC, GaN) Component

Topology encapsulating(3D)

iMaster TIE Gauss DBCloud

Power electronics technology ICT

5G

Digital technology


NO.1

2015 – 2016 – 2017 – 2018 – 2019 -

2020

Global Inverter Shipment

Central String

String solution has been

the MAINSTREAM in utility

Continuous Innovation, Leading Solar Industry Development

FusionSolar Smart PV 160GW

Accumulative Global Shipment

by the end of 2020

2016 2017 2018 2019 2020 2021 2022

38%50%

51%

53%

57%

59%

61%


Full Products & Solutions for All PV Scenarios

Smart String Solution Covering from Residential, C&I to Utility

Smart PV

Inverter

Smart Data Logger Smart PV

Management System

Smart Energy

Center

Smart ESS Smart PV

Optimizer

Smart PV

Management System

Smart PV

InverterSmart Transformer Station

Smart PV

Management System

Residential

Smart PV Solution

Commercial & Industry

Smart PV Solution

Utility

Smart PV Solution

Smart PV

Optimizer


Solar Inverters as the beating heart of your PV plant

So much more than a DC/AC converter

Dynamic MPPT

Module RISO

String AFCI

Optimizers

Static MPPT

Leakage Currents

PID Effects

Monitoring

EMC

Grid Codes

Immunity

External RCD

Reactive Power

Grid Support

Thermal

IP Rating

Ease of Use

Pollution

Communication

Long Life

Power Density

Suntrackers Energy Storage

Cybersecurity

O&M

Fuse-Free

Contents

1. Over Huawei

2. Lekstromen

3. Vlamboogdetectie

4. Optimizers

5. Netkoppeling


Digitalization and AI in Solar

Software defined Power

Source : Nature MagazineAlphaGo was taught how to play Go, but given no additional instructions. Instead it learned the best moves over time, simply by playing millions of games against itself.

Source : WikipediaAn Artificial Neural Network is based on a collection of connected units or nodes called artificial neurons, which loosely model the neurons in a biological brain. Each connection, like the synapses in a biological brain, can transmit a signal to other neurons


RISO

RISO

RISO

RISO

~

~

~L1

L2

L3

N

700V

DC

350V

DC

350V

DC

-350V

+350V

Cause of Leakage Currents (DC)

DC Leakage currents are related

to the isolation resistance of the

PV modules and the DC potential

voltage w.r.t. Earth

Under normal operation, these

currents equalize themselves

within the PV array.

Due to ageing and weather

influences, the balance may be

disturbed. This unbalance can

be measured at start-up of the

inverter.


Cause of Leakage Currents (AC)

AC Leakage Currents are

generally caused by the parasitic

capacitance of the PV modules

and the residual AC ripple on the

DC Cables

In common TN systems, these

currents flow from the modules

to the inverter, the power

transformer star grounding point

and then back to the modules

via Earth

~

~

~L1

L2

L3

N


How to Control Leakage Currents?

Advanced PWM Controls can

reduce the AC ripple voltage on the

DC lines, effectively reducing AC

leakage currents, but this comes at

a price.

• lower efficiency

• more sensitive to disturbances in

the grid (e.g. voltage unbalance)

• slightly higher harmonic currents


Contents

1. Over Huawei

2. Lekstromen

3. Vlamboogdetectie

4. Optimizers

5. Netkoppeling


Speedy arc fault protection by

inverter shutdown in 0.5s

Accurate arc fault detection via

local neural network algorithm

Self-learning new arc features

with AI model

- HUAWEI inverter keeps self-learning new arc feature to

accurately protect system from arc fault, even under

complex noise

What is AI Powered AFCI?

AI Powered

Active Arcing Protection


C&I tailored arcing detection

with Max current 26A, best

match bi-facial modules

C&I tailored arcing detection

range with PV cable up to 200m

for MW-level PV plant

26A

C&I Tailored

Enhanced Active

Arcing Protection

80m

200m

UL1699B Huawei

Up to 150% Better

16A

26A

UL1699B Huawei

Up to 62% Better

12-20KTL-M2 30-40KTL-M3 100KTL-M1

200m


2min

2-min fault locating through

remote one-click scanning,

no need onsite inspection

10min

10min diagnosis report auto

generation for a typical

MW-level PV plant

14

Accurate diagnosis of

14 types of module faults,

with 0.5% sensor accuracy

Online Smart I-V

Curve Diagnosis,

Module Touch Free

Conventional Offline Diagnosis Online Smart I-V Curve Diagnosis

Onsite diagnosis by experts in 1day

1%-10% sample scanning

Manual data analysis & report writing

Online diagnosis in 2min

100% string scanning

Auto diagnosis report generated in 10min

Hot Spot PID Degradation Diode Short Circuit

*Applicable for inverter only (without optimizers)

Contents

1. Over Huawei

2. Lekstromen

3. Vlamboogdetectie

4. Optimizers

5. Netkoppeling

No RS485 Cable Required, Data Transmission via AC Cable

Communication Distance up to 1,000m for Larger Blocks

Robust & High Reliability with 0-touch Maintenance

Self-design Hisilicon Chipset

MBUS Replacing RS485 Cable

for More Reliable Data Transmission

Reliable Data Transmission Even

with Several Lanes blocked by Noises

Multiple Lanes vs. Single Lane for

100 Times Faster Data Transmission

Single lane Multiple lanes for different signals Blocked by noise Even several lanes blocked by noises

Other vendors Other vendors

Upgrade Your Solar Experience

More Energy by

Optimizing Each Module

Performance

Up to 30%

Without Optimizer

With Optimizer

If any shading on the rooftop,

install optimizers

Allows to install more modules and other

modules’ performance is not impacted

Weak modules reduce the performance of

all modules in the string

Vent Air conditioner Fencing Base Station Billboard

Smart PV Optimizer

Saving 95% onsite troubleshooting time

and cost with accurate arc fault positioning

Arc Fault Positioning for

Easier Troubleshooting

Pinpoint

* Manually detection of DC arc fault in a 100KWp C&I system

usually takes 2 days. Pinpoint arc fault position report lead to

resolve the problem within 30 mins.

Less power loss because of shorter system

tripping

*Full optimizer required

Contents

1. Over Huawei

2. Lekstromen

3. Vlamboogdetectie

4. Optimizers

5. Netkoppeling

24

HUAWEI TECHNOLOGIES CO., LTD. Page 24

India 100MW Project:

Successful grid connection with weak grid

Ningxia 750MW Project:

Stable operation with 10k+ inverters

······

Challenges with

Renewable Grid Connection

Proven in weak grid

scenario

Smart interaction

of inverter with grid

Damping algorithms Intelligent, Self-adaptive

Advanced Grid Integration through Digital Algorithms

Smart Grid-connection Algorithm

Supports stable PV Plant operation in ALL grid scenarios

Harmonic Suppression, THDi < 1%

Comparison Testing

@SCR=1.5

Other string inverter,

shut down

SUN2000 inverter,

stable operation

POC AC voltage

Weak Grid Support, SCR down to 1.5

Grid sensing

algorithm

Impedance reshaping

algorithm

FRT recovery spike

suppression

FRT restrike oscillation

damping

Virtual impedance

self-calibrationAdaptive compensation

0.0%

2.0%

4.0%

6.0%

8.0%

10.0%

12.0%

30.00% 50.00% 100.00%

Other String Inverter Huawei Smart PV inverter

Quickly & accurately analyze THDi, Active harmonic suppression

THDi Testing Comparisons @Weak Grid (THDu~4%)

>9%

>6%

<1%

>5%

<1% <1%


Smart Grid-connection Algorithm

Future-proof, Be ready for power grid development

• Full Compliance with NC RfG (European Directive 2016/631)

• Country Specific Certification or EN50549-1/2 Certificate

• Netcode Nederland – Declaration of Conformity for Type B/C

• Multiple Type D plants in operation

• Power Export Control

• Smart Reactive Power Control

• Congestion Management Controls: P(U), Q(U), Q(P), cos-φ(P)

• DER Grid Dispatch (Ripple Control)

• Cable Pooling / ESS / Hybrid PV Plants

Future:• Black Start Capability (with ESS)• Synthetic Inertia


Let us Light up the world through AI & Digitalization!

Copyright©2018 Huawei Technologies Co., Ltd.

All Rights Reserved.

The information in this document may contain predictive

statements including, without limitation, statements regarding

the future financial and operating results, future product

portfolio, new technology, etc. There are a number of factors that

could cause actual results and developments to differ materially

from those expressed or implied in the predictive statements.

Therefore, such information is provided for reference purpose

only and constitutes neither an offer nor an acceptance. Huawei

may change the information at any time without notice.

Bring digital to every person, home and organization for a fully connected, intelligent world.Thank you.

Huawei Digital Energy Business Dept.

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