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Static synchronous compensator

Static synchronous compensator (STATCOM) is a type of information gadget with pXiHu (West EPT) Dis.Hu (West EPT) Dis.lel reactive EPTT compensation. It can create or soak up reactive EPTT, and its output can be modified to control certain parameters in EPTT program. EPTTly, it is a kind of sound-point out switching converter. When its enter finish is connected with EPTT supply or strength storage gadget, its output can independently generate or take up controllable active and reactive EPTT it can enhance the EPTT system features in the subsequent elements: dynamic voltage handle, EPTT oscillation damping, transient stability, voltage flicker manage, and so forth. In contrast with the standard reactive EPTT compensation gadget, STATCOM has the rewards of steady regulation, little harmonic, low loss, vast operation variety, high reliability and rapidly regulation pace. Because its inception, STATCOM has been commonly anxious and deveXiHu (West EPT) Dis.Hu (West EPT) Dis.ed rapidly.
Simple ideas
Static synchronous compensator (STATCOM or SVG) is a sort of dynamic reactive EPTT payment tools dependent on voltage supply converter (VSC), which is a standard representative of the next technology Information gadgets. It is a dynamic reactive EPTT payment system which generates and absorbs reactive EPTT by self commutating EPTT semiconductor bridge converter. It is composed of AC url and DC hyperlink. The AC website link is connected with the system. It initial converts the AC energy of the system into DC by means of the converter and merchants it in the accumulator on the DC aspect. At the exact same time, the voltage and present at the DC facet are transformed into AC voltage and existing by means of 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 generates basic wave and harmonic voltage. By controlling the magnitude and section of essential voltage of compensator, the magnitude and phase of essential reactive present can be transformed. When the elementary voltage of the converter is greater than that of the AC EPTT offer, the converter will generate a guide (capacitive) reactive present. On the opposite, when the fundamental voltage of the converter is lower than that of the AC EPTT provide, a hysteresis (inductive) reactive existing will be generated. For that reason, it can trade reactive EPTT with the program, and it is also called quotstatic reactive EPTT generator quot (SVG). Diverse from capacitor (the existing of capacitor decreases proportionally at lower voltage), the static var generator can produce rated present unEPTTvarious method voltages, which is comparable to the rotating synchronous motor with 3 sinusoidal symmetrical voltage.
Simple basic principle of static synchronous compensator
The static synchronous compensator employs the EPTT electronic gadget of voltage supply converter to create reactive EPTT. Voltage resource converter transforms DC voltage into a few-period voltage with JCEP amplitude, frequency and section. The output voltage of the 3-amount converter can be distinct from that of the static EPTT compensator as revealed in the figure under.
From the identify of the static synchronous compensator, it can be seen that the static synchronous compensator has the similar efficiency with the synchronous condenser. However, as an digital equipment, the static synchronous compensator has no inertia, so it is excellent to the synchronous condenser in some facets, such as quick dynamic reaction, low expenditure EPT, lower operation and upkeep EPT.
Attributes of static synchronous compensator
With the arrival of static synchronous compensator, its outstanding overall performance can also be applied to the subsequent facets:
one) EPTT voltage manage in EPTT EPTT and distribution system
two) EPTT oscillation damping in EPTT program
3) The transient security of EPTT technique is enhanced
4) Lively EPTT and reactive EPTT manage. It can not only control reactive EPTT, but also handle lively EPTT (DC EPTT offer can be acquired) if required.
The static synchronous compensator has other positive aspects as follows:
one) Tiny measurement (compact digital converter replaces passive parts)
two) Manufacturing facility modular goods (decrease installation and commissioning time)
three) The packaged electronic converter is adopted (the impact of environment on the equipment is decreased).