The randomness and intermittence of new
energy power generation would influence whether the power system is reactive or
not and cause the fluctuation and flicker of voltage. What’s more, the
low-voltage fault in the system would impact the grid connection of inverters. TSVG can
exercise dynamic adjustment to the reactive work, stabilize the bus bar
voltage, reduce the reactive output of converters and improve the
stability of new energy power stations.
Regional grids have a large number of
inductive loads and relatively low natural power factors, causing the increase
of line drop and transmission losses. Besides, it also lowers the power supply
capacity of Power T&D apparatuses and output of electric apparatuses. TSVG
can realize the reactive compensation for grid, meet the requirements for the
power factors and power quality of the power system and gain the huge benefits
of energy-saving and cost-reducing.
In operations, electric trains use
single-phase rectification loads, thus producing reactive current and harmonic
current and exerting severe influence on the power supply systems and power
quality on the trains. The reactive harmonic wave has increasingly become the
top concern demanding prompt solutions for electrified railways. The
single-phase TSVG can exercise dynamic adjustment to the reactive power of the
power supply system and the filter FC can effectively remove the higher
harmonic current produced in the trains operation.
The charge effect of subway cable makes
subway system in the reactive state of at night, which causes the rise of bus
bar voltage and threatens the stability of power apparatuses. TSVG can give
targeted reactive compensation to subway systems, stabilize the bus bar
voltage, increase power factors and completely address the reactive problem.
In running, electric-arc furnaces generate
fast changing reactive current, negative-sequence current and harmonic current.
The fast changing reactive loads make grid voltage fluctuate and flicker
greatly. TSVG can rapidly and precisely detect the reactive current and
negative-sequence current and output the compensation current within 5 ms. This
way, it can improve the power factors of the system, restrain the voltage imbalance
of the grid, stabilize bus bar voltage and restrain voltage flickers to the