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Static synchronous compensator
Static synchronous compensator (STATCOM) is a variety of details system with pXiHu (West EPT) Dis.Hu (West EPT) Dis.lel reactive EPTT compensation. It can make or soak up reactive EPTT, and its output can be altered to control distinct parameters in EPTT program. EPTTly, it is a kind of reliable-condition switching converter. When its enter end is connected with EPTT offer or energy storage unit, its output can independently create or take in controllable lively and reactive EPTT it can boost the EPTT method features in the adhering to factors: dynamic voltage manage, EPTT oscillation damping, transient steadiness, voltage flicker control, and so on. In comparison with the conventional reactive EPTT payment device, STATCOM has the positive aspects of steady regulation, little harmonic, low decline, vast operation variety, substantial reliability and quick regulation velocity. Because its inception, STATCOM has been widely worried and deveXiHu (West EPT) Dis.Hu (West EPT) Dis.ed quickly.
Standard principles
Static synchronous compensator (STATCOM or SVG) is a variety of dynamic reactive EPTT compensation products primarily based on voltage source converter (VSC), which is a typical consultant of the 2nd generation Details units. It is a dynamic reactive EPTT payment device which generates and absorbs reactive EPTT by self commutating EPTT semiconductor bridge converter. It is composed of AC website link and DC hyperlink. The AC link is connected with the program. It very first converts the AC strength of the system into DC by way of the converter and merchants it in the accumulator on the DC aspect. At the very same time, the voltage and existing at the DC aspect are converted into AC voltage and recent through the converter and transmitted to the system.
It reXiHu (West EPT) Dis.Hu (West EPT) Dis.ds the converter circuit as an AC voltage resource which makes elementary wave and harmonic voltage. By controlling the magnitude and phase of basic voltage of compensator, the magnitude and period of essential reactive present can be transformed. When the elementary voltage of the converter is larger than that of the AC EPTT provide, the converter will produce a guide (capacitive) reactive existing. On the contrary, when the essential voltage of the converter is reduced than that of the AC EPTT provide, a hysteresis (inductive) reactive recent will be produced. Therefore, it can trade reactive EPTT with the technique, and it is also known as quotstatic reactive EPTT generator quot (SVG). Distinct from capacitor (the existing of capacitor decreases proportionally at reduced voltage), the static var generator can produce rated existing unEPTTvarious program voltages, which is related to the rotating synchronous motor with a few sinusoidal symmetrical voltage.
Basic basic principle of static synchronous compensator
The static synchronous compensator utilizes the EPTT digital device of voltage source converter to produce reactive EPTT. Voltage resource converter transforms DC voltage into a few-stage voltage with JCEP amplitude, frequency and phase. The output voltage of the a few-stage converter can be different from that of the static EPTT compensator as demonstrated in the determine underneath.
From the title of the static synchronous compensator, it can be witnessed that the static synchronous compensator has the related performance with the synchronous condenser. Even so, as an digital gear, the static synchronous compensator has no inertia, so it is outstanding to the synchronous condenser in some aspects, this kind of as rapidly dynamic response, minimal investment EPT, minimal operation and upkeep EPT.
Attributes of static synchronous compensator
With the advent of static synchronous compensator, its exceptional functionality can also be applied to the adhering to aspects:
one) EPTT voltage handle in EPTT EPTT and distribution program
two) EPTT oscillation damping in EPTT method
three) The transient security of EPTT program is enhanced
4) Lively EPTT and reactive EPTT control. It can not only manage reactive EPTT, but also management lively EPTT (DC EPTT offer can be received) if essential.
The static synchronous compensator has other positive aspects as follows:
1) Tiny measurement (compact digital converter replaces passive factors)
2) Manufacturing unit modular goods (lessen installation and commissioning time)
3) The packaged electronic converter is adopted (the influence of surroundings on the products is reduced).
