Oilfield Regional Power Grid Reactive Power Compensation Optimization Design

Power grid construction in the early oil exploration in shengli oil field, accompanied by a geographical construction of oilfield exploration and development, provide power protection for the original production, and urban residents live. In recent years, as social economic and oilfield oil and gas production of constantly expansion extended, load continued rose, but grid once equipment replacement relative lag, grid structure not reasonable, while we has been is committed to advance grid boost transformation of of process, still and load growth of needs has must gap, no Gong serious insufficient, substation, and line power factor lower, network loss high, special in grid way adjustment Shi, often caused voltage quality declined, and motor cannot started or dumped load, situation. Power system reactive power compensation of the existing group for fixed and set compensation, due to the loading of oil field water injection in oil extraction, special nature of motor loads such as, at the time of starting and stopping large load fluctuations, reactive power compensation capacity and not as the load changes dynamically, seriously affecting the operation quality of power grid efficiency and energy use efficiency.This according to oilfield grid actual, on no Gong compensation status for seriously analysis, according to original regional grid no Gong compensation model, from regional grid structure, and existing static compensation and dynamic compensation situation and the load real-time run situation, all area, integrated consider regional grid voltage security and economic sexual, to integrated security and statistics maximum for optimization target, on regional grid no Gong compensation programme for research, through found problem, and solution problem, made regional no Gong compensation optimization programme. To grid trend for equation constraint, to voltage and capacitor security conditions for inequality constraint, established and optimization oilfield110kV substation regional no Gong optimization control model; using difference evolution algorithm on its optimization model for solution, determines out110kV substation the substation within dynamic compensation capacitor has contains regulator how and main variable has contains regulator variable than, and on the has contains regulator variable than for real-time regulation, to guarantee victory oilfield110kV substation regional grid of no Gong reasonable mobile, Achieve the purpose of optimal operation of regional power grids.At the same time, through the implementation of change in China, achieved good results, verify the feasibility of optimization, for a regional power network reactive power compensation system of oil field upgrade model, have a good promotional value in oil field power network.