The Harmonic Control And Reactive Power Compensation Of The Lifting Machine Of Mine Driving Device

Benefit from the development of power electronics technology, mining companies for its power equipment also conducted a large area of replacement. A lot of power electronic devices rectifier, frequency control devices can be widely used in mining companies, although their application to enhance the productivity of mining enterprises, but also makes power quality due to the presence of a large number of nonlinear loads contamination. With the expansion of mining enterprises to enhance the size and yield, using high-power hoist to meet the production needs of enterprises has become an inevitable choice. As we all know mine hoist is impact load, it is bound to further increase the run mining enterprises contamination grid.Hoist the largest mining enterprises as impact load, it operates will cause fluctuations in the power factor to reduce mining enterprise network pressure and produce a lot of harmonics, power quality become important sources of pollution. Mine hoist terminated power units, its sources of power quality mainly net voltage fluctuation, 5th, 7th, 11 th harmonic component, and therefore by way of local compensation governance, the reactive component to enhance locally generated and harmonic compensation and governance to achieve mining enterprises to enhance the quality of the grid. With the development of integrated technology, the current power compensation device can simultaneously achieve the reactive component of compensation and harmonic components of the two functions of governance, but a wide range of different functions, for which we from many different types with different functions without reactive power compensation and harmonic control scheme combinedwith the impact of the mine hoist load characteristics of the final choice of dynamic reactive power compensation and passive second-order high-pass filter as this elevator reactive power compensation and harmonic governance program, the TSC harmonic filtering and reactive power compensation device selected as the final execution means, and based on the calculated value hoist parameters amount to complete the selection TSC harmonic filtering and reactive power compensation device. Through the commissioning of equipment, network voltage fluctuation hoist runtime value of 0.8%, power factor of 0.92, three harmonics are effectively suppressed to achieve the desired effect of the present design.