Dynamic Reactive Compensation Applied Research In The Oilfield Substation

With the rapid development of China's economy and international energy tension intensifies, strengthen the power quality and saving energy and reducing consumption management has become the important content in the national policy. With a reasonable distribution of reactive power grid to improve power quality and energy saving has a very important role, which is to achieve reactive power compensation to improve power factor, reduce line loss of effective measures. Shengli oilfield nature of the work load of most of the emotional load of the grid, with a low power factor, network loss, load instability characteristics, reasonable compensation of reactive power grid safety and reliability of oil is significant. Currently Shengli Oilfield high water cut, high-cost development period, which reached one-third of the cost of electricity, running an effective solution to optimize power grid issues oil and reduce power losses, improving economic efficiency has become a priority field grid system to enhance the problem more conducive to the normal functioning of electrical equipment should effect, a strong electric field to ensure that users of power quality.Since reactive power can not be long-distance transmission, a large number of electricity distribution transformers and reactive power under the Local Compensation and place must be balanced. Rational choice point of reactive power compensation, and compensation capacity determination, can effectively maintain the system voltage level and stability, reduce grid power loss, to achieve power saving purposes. In the field grid, the reactive power compensation capacitors to use more concentrated groups of compensation, reactive power compensation capacity between the substations from the regional power grid is not a unified planning and consideration, compensation, and compensation capacity to locations often unreasonable, reactive power compensation capacity and can not be with the dynamic adjustment of the load changes, there is less than compensation and compensation for the shortcomings. A suitable field of application of the actual power grid, the economy and reasonable compensation of reactive power, reactive power compensation system for overall planning, dynamic field compensation as a necessary power to run the economy of the road. With the power boost oil transformation progresses, based on load characteristics and chaos genetic algorithm and dynamic compensation of fixed compensation combined concentration of the regional power grid field motion compensation technology evolved, which technology according to the typical power substation for Xin four existing power structure of Shengli Oilfield, compensation and load, load forecasting using adaptive genetic algorithms and chaos reasonable 110kV substation and 35kV substation concentration of reactive power compensation and fixed compensation part of the compensation part of the dynamic capacity, while the dynamic load conditions according to power optimal control of each substation reactive power compensation capacity to reduce power consumption, save energy, and power boost transformation in the North, Central gradual transformation of power boost application.This paper describes the reactive power compensation with the basic principles, effects, described in detail VcQV automatic voltage and reactive power compensation device and the regional power grid reactive power optimization technology research and application in the field, and explore practical for field applications of dynamic reactive power compensation.