Active energy management of smart grid

Assoc. Prof. Stanislav Mišák, Ph.D.

VŠB-Technical University of Ostrava

Faculty of Electrical Engineering and

Computer Science

specific requirements

■ autonomous running with independence on the delivering of

energy from external power grids,

■ operation of active distribution grid with well-balanced

between production and consumption of electric energy,

■ energy storage possibility,

■ using mainly renewable sources of electric energy,

nontraditional character of load,

■ new conception of protection with bi-directional power flow

■ active energy management system with supporting of

methods of artificial intelligence.

Active energy management of

smart grid

Hot

water

storage

tank Battery

Off-grid energy

system (Energy

storage )

Sto

rag

e C

ontr

ol

Sourc

es

AC/DC converter

DC/AC converter

AC/DC bidirectional

DC/AC converter

smart switchboard

power sensors

Smart meter

centr

al c

ontr

ol

syst

em

Off-grid

energy

manager

prediction of

production for

renewable energy

sources

Cloud

intelligent electrical appliances

primary secondary

primary secondary

Smart phone

In-home display

monitor

Wi-Fi PC

Visualization

Ethernet Internet

Weather station

Wind power

generation Solar collector Photovoltaic power generation

Off-grid conception for

family house

The Sources of electrical energy in Off-grid system

1) wind power plant with apparent power of 8

kV∙A. Wind power plant consists of 20 poles

synchronous generator with permanent

magnets and autonomic control system.

Off-grid system disposes 2 strings of

photovoltaic power plants.

2) photovoltaic power plants with installed power

2 kWp, fixed installation - polycrystalline solar

technology

3) photovoltaic power plants with installed power 2 kWp, two-

axis pointing device, so-called tracker - monocrystalline

solar cell technology

1

2 3

Family House Off-grid Conception

DC

DC

DC

DC DC

AC

AC

Switch board

DC

24

V s

wit

chin

g o

f cu

rren

t ci

rcu

its

Individual phase systems

1/N/PE 230V, 50 Hz TN-S

230V

230V 230V

Temperature sensor

Switching contact 16 A

dimmer

Measuring of UDC a IDC

Measuring of UAC a IAC

meteo data

FVE

Sunny island

Charging regulator

storage

Power energy Meter AC

Signal unit RFox

supply unit

Control unit PLC Tecomat Foxtrot

meteo data

Raspberry Pi

Supply unit

Protection concept

Remote switching RFox

Power energy Meter DC

Visualization of measured and processed energy and

meteorological variables

The active energy management system for Off-grid

sophisticated automated dispatching system for management and control of energy

flows for energy self-sufficient building

switching appliances according to predetermined priorities and with respect to the

state of the storage capacity of the facility and the estimated available energy from the

energy sources

prediction of production and power consumption of electrical energy

Off-Gridsystem

Meteo-values forecasting

Smart Load

Database Artificialintelligence

Active energy management

Energy flows inside the system

Power QualityMonitoring

The active energy management system for Off-grid

Time (h)

Th

e e

ne

rgy r

eq

uire

me

nt

(kW∙h)

Heating

Dishwasher

Oven

Fridge

Lights

Kettle

The active energy management system for Off-grid

Time (h)

Th

e e

ne

rgy r

eq

uire

me

nt

(kW∙h)

Heating

Dishwasher

Oven

Fridge

Lights

Kettle

Supervised Learning of Photovoltaic Power Plant Output Prediction Models

Lukas Prokop, Stanislav Misak, Pavel Kromer Vaclav Snasel, Jan Platos

Časopis IF - Advances in Electrical and Computer Engineering (Rumunsko)

Photovoltaic Power Plant Power Output Prediction using Fuzzy Rules

Lukas PROKOP, Stanislav MISAK, Vaclav SNASEL, Pavel KRÖMER, Jan PLATOS

Časopis Electrical review – scopus

M. Musztyfaga, L.A. Dobrzański, Stanislav Rusek, Lukas Prokop ,Stanislav Misak

Application of modern technique to set the parameters of the monocrystalline solar cell and its

structure

Časopis Electrical review – scopus

Lukáš Prokop, Stanislav Mišák, Emil Pelikán, Pavel Juruš, Ivan Kasanický

Analysis of PV System Energy balance based on meteorological data

Lukas Prokop, Stanislav Misak, Vaclav Snasel, Jan Platos, Pavel Kromer

Časopis Electrical review – scopus

Supervised Learning of Photovoltaic Power Plant Output Prediction Models

Lukas Prokop, Stanislav Misak, Vaclav Snasel, Jan Platos, Pavel Kromer

Časopis NNW – IF

Integrating Renewable Energy Sources Using a Smart Household Systém

Miroslav Prymek and Ales Horak, Lukas Prokop and Stanislav Misak

EE 2013 – Tatry WoS

Publications

In review process

TAČR Competence Centres programme

Open expert system for management of autonomous units on micro-

regional level

GAČR Intelligent Control and Management of Energy Systems

Accepted

MPO Renewable sources of Electric Energy 240 000 Kč.

Fitcraft company: Systems for Loads Forecasting 500 000 Kč

Projects

Thanks for your attention

Stanislav Mišák

Thank You for Your attention…