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This paper proposes a new framework for the power system unit commitment process, incorporating generation flexibility requirements and environmental constraints into the existing unit commitment algorithm. The generation flexibility requirements are to address the uncertainty and variability associated with large amounts of intermittent resources as well as with load, which cause real-time balancing...
In response to the Kyoto protocol, the European Union (EU) introduced the Emission Trading Scheme (ETS), which adopts `cap-and-trade' market mechanism for CO2 emission trading. In this scheme, the emission allowances are allocated to each industrial installation and companies can buy and sell their allowances. In the electric power sector, the development of decision-making methods concerning emission...
In this paper, a new hybrid meta-heuristic method is proposed to solve a unit commitment (UC) problem with nonsmooth fuel cost functions effectively. The proposed method focuses on global optimization in a sense that a generation company need carry out the cost reduction under competitive environment. The proposed method integrates parallel evolutionary particle swarm optimization (PEPSO) with variable...
This paper proposes a new hybrid meta-heuristic method for profit-based unit commitment (PBUC) that considers units with nonlinear cost function. The proposed method aims at global optimization to carry out profit maximization under competitive environment. The objective of the traditional UC is to minimize operation-cost while satisfying the constraints. However, power system operation needs reformulate...
The paper will discuss the new dispatch methodology of power grid. The power grid's new goal is saving and emmission controlling. According to the new conception, the tranditiongal dispacth method will be changed. It is important that study on conpetition dispatch of power grid about energy efficiency in the generator companies.
In the modern competitive electricity supply industry, there is a renewed interest in algorithms that can provide fast and optimal solutions for savings in operation costs. A novel methodological strategy incorporating the priority list is proposed to provide efficient solutions. Thus, we call the proposed method as methodological priority list (MPL) method. The MPL is simpler and more efficient than...
The paper proposes a unit commitment problem formulation which models combined pool/bilateral operation as well as effects of emissions constraints and emissions trading mechanisms. In here proposed model, power outputs of generators are, on one hand, bounded by their bilateral contract commitments, and on the other side, by the amount of CO2 emissions that they are allowed to produce over time. These...
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