PowerPoint プレゼンテーション - Central Board Of

D2-D3_05
Development of Photovoltaic Power
Generation Facility Monitoring
System for Decentralized Power
Plant Operators
Kazumi Inoue
Makoto Nishioka
Nishimu Electronics Industries Co., Ltd.
Contents
1. System Overview

2. System Development and Benefits

3. Future Undertakings

1. System Overview
Issues of Decentralized Power Plant Operators
PCS Manufacturer A
Plant
Decentralized Power Plant Operator
(Plant Manager)
PCS Manufacturer B
Plant
PCS Manufacturer C
Plant
PCS (Power Conditioning System)
<Issues>
(1) Data on photovoltaic power generation facilities is managed individually by each plant.
(2) Events such as alarms require personnel to visit the sites concerned to perform checks.
(3) The collection of information on power generation from each plant is time consuming.
1. System Overview
System Overview
Nishimu Data Center
PV power generation
business operator
Mobile phone
[Browser access]
Data
collection
Data
viewing
Notification
of fault
information
Graphical
display
Numerical display
Data on power generation facilities at
various sites in Kyushu can be viewed
through a web browser and readily
used for research and development.
[Acquisition and e-mail notification of
device fault information]
Internet
Device, line or other fault information
can be viewed through a web browser
and can be automatically reported by
e-mail.
[CSV download]
PV power generation
facilities
Numerical data that can be used in
reports, etc. can be downloaded in
CSV format.
2. System Development and Benefits
System Configuration
Meteorograph
Pyranometer
Information Collection
Solar panel
Nishimu Data Center
Internet
IP-based
information
transmission
equipment
Power conditioner
Information Display and Notification
PV power generation
business operator
Management
server
[Browser access]
Nishimu Data Center
Internet
Data viewing
Graphical
display
Management
管理サーバ
server
Mobile phone
Notification of fault
information
Numerical display
2. System Development and Benefits
System Development
Graph showing Amounts of Power Generated
at Multiple Plants
2. System Development and Benefits
Benefits of System Development
(1) Improved Facility Maintenance Speed
- 40% reduction in average fault recovery time
(2) Labor-saving and Improved Efficiency in Management
- Reductions in initial and running costs
- Reduction in maintenance personnel
(3) Effective Use of Accumulated Data
- Power generation forecasts based on the analysis of
meteorological and power generation data.
- Comparison of trends of multiple plants
3. Future Undertakings
◆ Capabilities to support large-scale photovoltaic power generation
facilities
◆ A M2M (machine-to-machine)-based system using remote
control technologies to enable control of decentralized power
supply systems in smart grids
◆ Use of smart devices to realize greater mobility
◆ Data mining technology for accumulated information to enable
the performance of tasks such as power generation forecasts
and facility degradation diagnosis
◆ String monitoring technology to enable the early detection of
solar panel faults and power generation loss
This concludes my presentation.
Thank you for your attention.
Special Report Questions
Q3.8 :
- Could the authors describe the advantages of use of Cloud Computing
(CC) within this project?
A3.8 :
Ｃloud
Ｏn-Ｐremises
Plant A
PCS Manufacturer A
Plant A
PCS Manufacturer A
Nishimu Data Center
PCS Manufacturer B
PCS Manufacturer B
Plant B
Plant B
Management
server
PCS Manufacturer C
PCS Manufacturer C
Plant C
Plant C
Special Report Questions
Q3.9 :
-Does someone from the authors or audience have practical experiences in
deploying and using of CC?
A3.9 :
To date, we have accumulated practical experience in on-premise systems.
Full-fledged cloud services have emerged in Japan, too, and we have made
use of cloud computing for the first time in developing this system.
Regarding the adoption of cloud computing, we have also been able to use
could services provided by other companies, but this development has given
us comprehensive practical experience with cloud computing through the
construction of a cloud environment at our data center.
Special Report Questions
Q3.10:
- What are the benefits and disadvantages of CC? Could you quantify this?
A3.10:
Cloud
On-premise
Benefits
No cost required for system
management because of external
operation.
Easy to increase or reduce the use of
the cloud.
Capable to cope with changes in
business environment.
Relatively low risk because of the system
deployed in the user’s facility.
Relatively easy to link the system to other
in-house systems because operation and
maintenance of the system including
servers can be carried out by the
company.
Disadvantages
Security risks involved in access over
the Internet.
Considerations need to be given to
fault tolerance because of aggregation
of data in the cloud.
Operation and management costs
incurred continuously because the
system is operated by the company.
Reinvestment may be required to
increase or reduce the scale of the
system use.
Special Report Questions
Q3.11 :
-WEB services are very useful in managing devices en services. How could we
deploy and use them securely?
A3.11 :
Meteorograph Pyranometer
Information Collection
Solar panel
Nishimu Data center
Internet
Power conditioner
IP-based
information
transmission
equipment
Management
server
・Techniques to prevent information leaks using IP-VPN (IP-Virtual Private Networks)
・ Encryption techniques using SSL (Secure Socket Layer)
・ Authentication using user IDs and passwords.
Thank you for your attention.

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