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Volt/Var Optimization (VVO) function is a key element in advanced Distribution Management System (DMS) functionality. VVO function is designed to optimize the voltage and reactive power flow in distribution network by using possible control equipment such as transformer on-load tap changers (OLTC), Voltage Regulators (VR), and switching the Capacitor Banks. In this paper we use a full mixed integer...
The liberalization of electricity markets had a significant impact on the whole process of optimal dispatch. The positive effect of competition is partly canceled out by profit-maximizing behavior of market participants. Strategic generators can exercise market power or collude tacitly with other participants to ensure higher electricity price and therefore higher profits. In this paper we study the...
The transmission system in EU is run by different TSOs with different nationalities, ownerships, and internal policies. This makes the transmission planning for the European Integrated Electricity Market difficult. In fact, each TSO tries to act strategically in order to maximise his social welfare and they are reluctant to act in a cooperative solution. In the context of multiple inter-connected...
Power flow in earth return distribution systems typically depends on geographical location and specific earth properties. The planning of such systems has to take into account different operational and safety constraints from conventional distribution systems. This work presents the mathematical modeling and planning of Single Wire Earth Return (SWER) power distribution networks. The SWER load flow...
Meeting peak demand is a major concern for grid operators, sometimes amplified by the liberalization of the electricity industry. Peak resources operate during a short period, at a high operating cost, and face difficulties to recover their investments. Sending the proper market signals to trigger long term generation investments in these types of generating units is a critical issue. Different incentivizing...
In a typical liberalized wholesale electricity market, the output of controllable units is determined at regular intervals through a dispatch process. However, since the physical limits of power systems must be respected down to time scales shorter than the dispatch interval, in practice system operators must also be able adjust the output of controllable units over very short time frames - typically...
This paper derives a mathematical structure for investment decisions of a profit-maximising and strategic producer in liberalised electricity markets. The paper assumes a Cournot producer in an energy market with nodal pricing regime. The Cournot producer is assumed to have revenue from selling energy to the pool. The investment problem of the strategic producer is modelled through a leader-follower...
Power system laboratories should be developed and fully exploited to educate capable power engineers, who would be able to easily integrate with the industry workforce. There are various tools and methods of using these tools, which can be utilized in power system laboratories. Particularly, hands-on hardware-based equipment or simulation-based software packages can be used. Also, the utilization...
This paper develops a mathematical tool for modelling market power cost in transmission expansion planning decisions. The mathematical modelling is based on the game theory in applied mathematics and the concept of social welfare in microeconomics. We assume the generating companies as Cournot players and the Transmission System Operators as a regulated social transmission planner. To tackle the multiple...
Market power analysis is one of the major issues facing regulators of wholesale electricity markets. The exercise of market power both distorts wholesale price signals and reduces the efficiency of the operation of and investment in the wholesale electricity market. This paper deals with a systematic way for quantifying and visualising market power. The paper first proposes three indicators termed...
This paper defines and discusses three types of benefits for economic analysis of transmission investment policies. These benefits are termed (1) The Efficiency Benefit, (2) The Static Competition Benefit, and (3) The Dynamic Competition Benefit. To provide more insights to these benefits, an example system is studied. The results show that a transmission network service provider can and should use...
This paper deals with a systematic way for modelling and visualising market power in liberalised electricity markets. The paper first introduces a new index termed the “Nodal Market Power” index, the NMP index. The NMP index is calculated based on the concept of “social welfare” in economics and the game theory in applied mathematics. The oligopoly electricity market is modelled through a non-cooperative...
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