Integrated generation-transmission expansion planning for offshore oilfield power systems based on genetic Tabu hybrid algorithm

Abstract

To address the planning issue of offshore oilfield power systems, an integrated generation-transmission expansion planning model is proposed. The outage cost is considered and the genetic Tabu hybrid algorithm (GTHA) is developed to find the optimal solution. With the proposed integrated model, the planning of generators and transmission lines can be worked out simultaneously, which outweighs the disadvantages of separate planning, for instance, unable to consider the influence of power grid during the planning of generation, or insufficient to plan the transmission system without enough information of generation. The integrated planning model takes into account both the outage cost and the shipping cost, which makes the model more practical for offshore oilfield power systems. The planning problem formulated based on the proposed model is a mixed integer nonlinear programming problem of very high computational complexity, which is difficult to solve by regular mathematical methods. A comprehensive optimization method based on GTHA is also developed to search the best solution efficiently. Finally, a case study on the planning of a 50-bus offshore oilfield power system is conducted, and the obtained results fully demonstrate the effectiveness of the presented model and method.

Comparison of Different Virtual Inertia Control Methods for Inverter-based Generators

“…Therefore, replacing conventional sources with IGs will reduce the inertia of the whole power system. This fact is supported by [3], [4], both of which predicted that the increasing number of IGs in the UK could reduce the inertia constant by up to 70% between 2013 and 2033. Due to this inertia reduction, the rate of change of frequency (ROCOF) of the power system will be high enough to activate the load-shedding controller, even at a small magnitudes of load imbalance [5].…”

Offshore Oilfield Hybrid Renewable Power Systems Based on AI Algorithm

“…Due to the power system in offshore oil field is at a monophyletic radiation to turn to the early stages of the interconnected system of offshore platform more interconnected power system network scale is generally small, the project networking options is less, the need for structural optimization is not high, so on offshore platform more interconnected power system structure optimization literature are rare. Only literature [3] is devoted to the structural optimization of offshore multiplatform interconnected power systems. In this paper, a power-grid collaborative optimization model is established.…”

A contingency-aware method for N-2 security-constrained transmission expansion planning

“…In contrast, M2 takes the worst contingencies into consideration one by one and needs more iterations. It is important to note that the part of the potential contingencies derived by M3 become the worst contingency in M2, e.g., line contingencies (5,10), (3,9), and (6,7). It is equivalent to considering them in advance in M3.…”

“…In general, there are two types of methods for dealing with security in TEP, i.e. À post-check: check whether the security criterion is satisfied after obtaining a transmission construction plan [3];`constraint embedded: integrate the security criterion as one constraint into the planning formulation and explicitly model all contingencies [4]. However, both methods have limitations.…”