MV SVC for Solve Flickelharmonic and Dynamic Reactive Compensation Problems

Our SVC includes three types to meet the needs of different industries and sites: MCR, TSC, and TCR. The MCR type SVC adopts self coupled DC excitation and limit magnetic saturation working mode, which not only greatly reduces the generated harmonics, but also has low active power loss and fast response speed. By changing the triggering angle of the thyristor in the MCR excitation system, the saturation degree of the magnetic flux in the core of the magnetic control reactor can be altered, thereby changing the reactive power capacity output of the magnetic control reactor.

The MCR type SVC has extremely high reliability, maintenance free, and a service life of not less than 20 years. Important systems such as electrified railway traction power supply networks have been given priority for adoption; Capable of stable and reliable operation in any harsh power grid working environment (such as voltage waveform distortion, large amplitude fluctuations, etc.); It can directly operate in any voltage level power grid (6-500kV), and is easy to install (similar to ordinary transformers) and debug; The reactive power compensation capacity can be infinitely adjusted to achieve the best compensation effect.

product details

The high-voltage TSC dynamic reactive power compensation device consists of a control system, triggering system, thyristor monitoring system, pulse transformer, capacitor, reactor, protection unit, etc. The control system detects the reactive power of the power system in real time, automatically determines the capacitor branch that needs to be switched, and then controls the thyristor valve group of the corresponding branch to achieve the switching of the capacitor group. The above process is completely automated, ensuring no impact, surge, or transition when switching capacitors.

The TCR type SVC device mainly consists of two parts: TCR (thyristor controlled reactor) and FC (filter capacitor bank).The FC circuit combines filtering function and can provide fixed capacitive reactive power, while the TCR circuit changes the inductive reactive power output of the phase controlled reactor through thyristor control.Due to the extremely fast dynamic response speed of thyristors, with a response time of less than 10 milliseconds, real-time dynamic compensation of reactive power can be achieved. Especially for three-phase AC arc furnace loads, the voltage fluctuations and flicker generated can be minimized. At the same time, TCR type SVC has phase separation regulation function, which can balance the unbalanced loads of three-phase AC arc furnaces and other loads, and suppress the negative sequence component of the power grid to the minimum.

Products Advantage

MV SVC for Solve Flickelharmonic and Dynamic Reactive Compensation Problems (3)06y

• The thyristor valve adopts a photoelectric triggering method, with thyristor BOD protection, strong anti-interference ability, and reliable protection;

• The valve body design adopts a horizontal design, with compact equipment, reliable operation, and less maintenance workload;

• Fiber optic communication is used between the control system and the power unit, resulting in high signal stability;

• The thyristor controlled reactor has protection functions such as loss of synchronous power supply, loss of pulse, pulse imbalance, and thyristor breakdown.