Flexible AC Transmission Systems Modelling and Control
编者:
Xiao-Ping Zhang, Christian Rehtanz, Bikash Pal
内容简介:
The electric power industry is undergoing the most profound technical, economic
and organisational changes since its inception some one hundred years ago. This
paradigm change is the result of the liberalisation process, stipulated by politics
and followed up by industry. For many years the electric power industry was characterized
by a vertically integrated structure, consisting of power generation,
transmission/distribution and trading. The liberalisation process has resulted in the
unbundling of this organizational structure. Now generation and trading are organised
in separate business entities, subject to competition, while the transmission/
distribution business remains a natural monopoly. Since the trading of electric
energy happens on two levels, the physical level and the contractual level, it
has to be recognized that these two levels are completely different. However for
understanding the electricity market as a network based industry both levels have
to be considered and understood. The fundamental properties of electric energy
are as follows:
• Electricity always needs a network for transportation and distribution.
• Electricity cannot be stored in a substantial amount, hence production and consumption
have to be matched at each instant of time.
• The physical transport of electricity has nothing to do with the contracts for
trading with electricity
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发表于 2007-12-21 23:57:25
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