Smoothing Newton-Like Method for the Solution of Nonlinear Systems of Equalities and Inequalities

In this paper,we present a smoothing Newton-like method for solving nonlinear systems of equalities and inequalities.By using the so-called max function,we transfer the inequalities into a system of semismooth equalities.Then a smoothing Newton-like method is proposed for solving the reformulated system,which only needs to solve one system of linear equations and to perform one line search at each iteration. The global and local quadratic convergence are studied under appropriate assumptions. Numerical examples show that the new approach is effective.

Maritime Platform Facilities POB Plan Management Module Research and Development

There are many access ends and information asymmetry in the management of offshore platform production facility personnel information. In the actual business, the problem is decomposed and a multi-layer logical architecture is selected to design and develop the POB plan management module applicable to offshore platform facilities. The main functions of this module include task management, facility management, area management, sea-going unit management, plan management, report management, authority control, and comprehensive query. It can efficiently solve on-site business problems and improve the efficiency of POB plan management for various professionals on land and at sea. In actual use, the module can well assist in completing POB plan management tasks and improve work efficiency.

Application of Digitization in Offshore Oilfield

With the rapid development of information technology, the systematization and informatization of equipment management has become the goal of world advanced enterprises. With the rapid development of offshore oil fields, equipment maintenance management and safety control have been promoted to a new level. With the rapid growth of the company’s business and asset scale, the system users have increased year by year, the functions have been deepened and applied, and the investment in asset management informatization has also increased year by year. By analyzing the actual situation of personnel shift management on offshore platform, combined with the advantages of equipment personnel management in the system framework, this paper makes a digital exploration. Take informatization as the support, innovate working methods, improve management efficiency, and create intelligent shift handover, so as to achieve the purpose of improving quality and efficiency. Improve system application efficiency, business tightness and management efficiency.

Direct load control by distributed imperialist competitive algorithm

Demand side management techniques have drawn significant attentions along with the development of smart grid.This paper proposes a new direct load control(DLC)model for scheduling interruptible air conditioner loads.The model is coordinated with the unit commitment and economic dispatch to minimize the total operation cost over the whole dispatch horizon.The network constraints are also considered in the model.To ensure the thermal comfort of the occupants,we are among the first to incorporate the advanced two-parameter thermal inertia dynamical model of customer houses into the DLC model to calculate the indoor temperature variation.This paper also proposes a distributed imperialist competitive algorithm to effectively solve the model.The simulation studies prove the efficiency of the proposed methodology.