Mixed Dynamic Reactive Power Compensation Equipment And Its Application

The use of electrical energy has brought great changes for our lives and thesocial and economic development，however the factors how to make more effectiveuse of energy, how to Improve the efficiency of the reactive power compensation,and how to reduce the impact of the various types of harmonic on the powertransmission quality have extremely important roles in the development of modernindustrial. Considering the author has many years experience of the powerworkshop, nowadays reactive power compensation device has widely used inindustrial and mining enterprises, while it is unable to meet fully compensated.Thus it is proposed a new TSVG compensation device by studying thecharacteristics of TSC and SVG and combining the two reactive powercompensation device, which can effectively solve the reactive powerovercompensated or undercompensated in the power system, and can make thesystem power factor increased to close to1.In connection with the hybrid reactive power compensation device, this paperfirstly describes the development process for reactive power compensation deviceand stresses the need for reactive power compensation device. The paper comparesthe differences between TSC and SVG in detail, then analyzes the work principle ofTSVG and establishes its dynamic mathematical model, and analyzes thecoordinated control of system compensation. Finally, the TSVG has been madedetailed simulation in MATLAB and established field experiments.In AVIC Dongan Group’s electricity system, most of the load are Magnesiumalloy and iron castings production of machine tools, and work disconnected, thedemanded reactive power compensation capacity is changing real-time, it isimpossible that it is precisely equivalent to the output capacity of reactive powercompensation device, and there is the situation that the transformer has small loador no load when the factory rest at night or on vacation. The author has consideredover compensation in designing the TSVG, and take the coordinated control, whichrealizing continuous dynamic reactive power compensation, reducing theenterprises electricity energy consumption, enhancing the capacity of thetransformer and improving the safe and stable operation capability of the system.