GENERAL INTRODUCTION
In July 2001 AES acquired 56% of the shares of the sole
electrical energy service provider company Sonel. The concession agreement
signed between AES and the Cameroon government requested the modernization of
equipments and operations management of the new company AESS as a progressive
move towards the liberalization of the Cameroon electricity market system. This
new electricity market structure requires the unbundling of the Transmission
System Operator (TSO) from AESS. In order to ensure security and reliability in
electricity network and market operations, the TSO as the system operator with
exclusive right to operations management, shall share the same information and
information system facilities with AESS who conserves asset owner
responsibilities and exclusive rights to provide transmission services.
Requirements
In line with the above, AESS has decided to implement a new
Power Management System (PMS). The PMS is an IT-based solution package composed
of SCADA infrastructures on top of which specific software are implemented to
manage planning, supervisory control, and the accounting of electricity flows
between the main nodes of the network. Given the importance of this new system,
the large total cost of ownership associated with acquiring and running it,
AESS is facing challenges on its appropriate business integration.
More precisely, the business integration project of the
new SCADA/PMS at AESS would consist of integration in three dimensions : (i)
integrating technology in terms of implementation by the EPC contractor
(Siemens) as defined in the system design specifications; (ii) integrating
functionalities in terms of systems rollout, system documentation, maintenance
and support planning, training users to ensure sustainability of the system
service delivery; (iii) integrating organization in terms of business
operations re-engineering to ensure that both network operations management and
the new electricity market stakeholders derive expected project benefits.
Therefore, in order to ensure full ownership of the technology
and effectiveness of the expected benefits from the new SCADA/PMS system, AESS
has decided to analyze and study all the requirements and aspects across the
above three axes, in the bid to design specifications for an efficient business
integration solution.
The job during the internship at AESS was to do a requirement
study for the business integration of the SCADA/EMS module (one module of the
PMS).
Chapter 1 presents the context and background and then states
the problem to be solved with the goals and objectives to be attained. In order
to give a clear picture of the problem being solved, this chapter also gives an
overview of the technologies to be integrated.
Chapter 2 exposes some concepts and state-of-the-art
techniques as well as adopted the methodology used in doing the requirements
study.
Chapter 3 presents a summary of the results (the different
aspects and requirements for business integration with their corresponding
specifications) and some of their benefits in terms of quality assurance
measures for AESS's business integration project.
This work finishes with a conclusion, project status at AESS,
and the in terms of next steps of my internship project and my research
work.
.
CHAPTER 1
CONTEXT AND PROBLEM DESCRIPTION
1.1:
INTRODUCTION
This chapter briefly presents AESS as well as stating the
problem to be solved with the scope of work, goals and objectives to be
attained. Also, in order to give a clear picture of the problem being solved,
this chapter also gives a brief overview of the technologies to be
integrated.
1.2: PRESENTATION OF AES
SONEL
1.2.1: History
SONEL was founded in 1974, born of ENERCAM which was in turn
the daughter of Electricte du Cameroon. It became AES Sonel on the 18 July 2001
when 56 % of the capital was transferred to the American group AES CORPORATION,
one of the world's largest private electricity companies. It is a public
limited company and is the sole electrical energy service provider company in
Cameroon till date.
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