Due to the rapid development of power electronic technology, the nonlinear characteristics of industrial and agricultural power loads, especially transportation and civil electrical products are becoming more and more serious, and the power factor of users is also declining. Therefore, reactive power compensation devices are more and more widely used. The power compensation device is used to supplement the shortage of reactive power in the power grid to improve the power factor of the power grid, ensure the safe operation of the power system, and reduce the loss of electrical energy. The traditional reactive power compensation device lacks the corresponding circuit protection function, and the safety and reliability of the circuit are low. Because there is no protection, the capacitor burnout accident often occurs in the power grid with poor operating conditions, which poses a safety hazard to the power grid operation. In addition, the existing reactive power compensation device is heavily loaded when the reactive power compensation amount is large, resulting in a greatly reduced service life and high cost.
The utility model patent provides a advanced reactive power compensation device, which includes: a detection module, a control module, a compensation module and a protection module. The detection module has an input end connected to one end of a high-voltage power grid, and an output end connected to the input end of the control module. Connection, the control module, the output end is connected with the input end of the compensation module, the compensation module, the output end is connected with the other end of the high-voltage power grid, the protection module, one end is connected with the detection module, the other end is connected with the compensation module, through the various modules The advanced reactive power compensation device in the utility model is provided with a protection module to protect the working circuits of all modules in real time during the reactive power compensation process, avoiding the occurrence of reactive power compensation devices. The burning accident causes a potential safety hazard to the operation of the power grid, solves the problem of low safety and reliability of the existing advanced reactive power compensation device, and greatly improves the safety.
The SVG Static Var Generator is an electronic reactive power compensation system, for both capacitive and inductive power. It has the same operating principle as an active filter; the SVG injects a current in the opposite direction to counteract the installation's non-useful power (inductive and capacitive), thus ensuring that the target cosϕ is achieved.
The SVG instantly compensates and adjusts according to demand in a matter of milliseconds. It also compensates phase to phase in unbalanced systems. Static Var Generator is the perfect device for installations where there are strict penalties for the consumption of reactive power.
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