Intelligent control method and intelligent control system for offshore petroleum platform power grid

Abstract

The invention discloses an intelligent control method and an intelligent control system for an offshore petroleum platform power grid, and relates to a method and a system for monitoring an offshore oilfield group power grid. The method comprises that a wide-range intelligent monitoring system and a multi-target coordinated optimization operating system are arranged; the multi-target coordinated optimization operating system carries out restricted non-linear optimization on corresponding targets on the basis of synchronous data collected by the wide-range intelligent monitoring system; and an intelligent self-healing control system carries out control strategy decision making according to optimization results and automatic control on relay protection, switches, automatic safety devices and automatic adjusting devices. The system disclosed by the invention comprises the wide-range intelligent monitoring system, a dynamic early warning system, the multi-target coordinated optimization operating system and the intelligent self-healing control system. The intelligent control method and the intelligent control device solve a problem that the safety and the economy of the power grid cannot be precisely monitored and evaluated because of incomplete information, varied operating modes and uncertainty of model parameters, and problems of coupling of multiple control targets and coordination of multiple control measures of the offshore oilfield group power grid in a complex operating environment, thereby realizing comprehensive regulation of reactive power and active power of the power grid, and achieving an objective of automatic optimization operation.

Description

technical field [0001] The invention relates to an intelligent control method and system for an offshore oil platform power grid. Background technique [0002] At present, CNOOC has completed several long-distance and multi-genset oilfield group power grid systems. It has accumulated rich experience in the process of construction and operation, and has achieved good economic benefits after being put into operation. [0003] While the operation mode of the power network of the oilfield group brings benefits, it will also bring a series of problems. From the perspective of the operation control of the conventional network system, these problems include: power supply reliability, power flow control, static and dynamic stability, electric energy quality, grid automation level, etc. [0004] Considering the enhancement of oilfield production capacity and the construction of new oilfield platforms in the future, the capacity and scope of the networked system will gradually expand...

AI Technical Summary

Problems solved by technology

The security and stability challenges brought by the large-scale oilfield group networking system: the expansion of oilfield production scale and the development of new surrounding oilfields push the oilfield group power grid into the era of "large-scale, regional and complex interconnection", which will affect the safe and stable operation of the power grid. It brings many challenges, such as: the operation mode increases geometrically with the expansion of the network scale and the increase of equipment, and the difficulty of grid optimization and dispatching increases; the stability of the grid gradually evolves from the power angle transient stability of the small grid to a wider space and Dynamic stability problems on longer time scales

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