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Static synchronous compensator

Static synchronous compensator (STATCOM) is a type of information unit with pXiHu (West EPT) Dis.Hu (West EPT) Dis.lel reactive EPTT payment. It can create or absorb reactive EPTT, and its output can be changed to management distinct parameters in EPTT program. EPTTly, it is a kind of reliable-state switching converter. When its input stop is connected with EPTT supply or power storage gadget, its output can independently generate or absorb controllable energetic and reactive EPTT it can boost the EPTT technique features in the pursuing factors: dynamic voltage manage, EPTT oscillation damping, transient balance, voltage flicker management, and so on. In contrast with the classic reactive EPTT compensation device, STATCOM has the advantages of continuous regulation, tiny harmonic, minimal reduction, extensive procedure selection, high dependability and quick regulation speed. Given that its inception, STATCOM has been extensively worried and deveXiHu (West EPT) Dis.Hu (West EPT) Dis.ed speedily.
Standard ideas
Static synchronous compensator (STATCOM or SVG) is a sort of dynamic reactive EPTT payment products based on voltage resource converter (VSC), which is a typical representative of the next era Details devices. 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 hyperlink and DC hyperlink. The AC hyperlink is related with the method. It first converts the AC power of the program into DC via the converter and retailers it in the accumulator on the DC aspect. At the exact same time, the voltage and recent at the DC aspect are converted into AC voltage and existing by means of the converter and transmitted to the program.
It reXiHu (West EPT) Dis.Hu (West EPT) Dis.ds the converter circuit as an AC voltage source which generates essential wave and harmonic voltage. By managing the magnitude and stage of essential voltage of compensator, the magnitude and period of essential reactive current can be modified. When the essential voltage of the converter is greater than that of the AC EPTT source, the converter will produce a direct (capacitive) reactive current. On the opposite, when the elementary voltage of the converter is lower than that of the AC EPTT source, a hysteresis (inductive) reactive present will be produced. Therefore, it can trade reactive EPTT with the method, and it is also referred to as quotstatic reactive EPTT generator quot (SVG). Diverse from capacitor (the recent of capacitor decreases proportionally at low voltage), the static var generator can produce rated present unEPTTvarious program voltages, which is similar to the rotating synchronous motor with a few sinusoidal symmetrical voltage.
Standard theory of static synchronous compensator
The static synchronous compensator employs the EPTT digital device of voltage source converter to make reactive EPTT. Voltage resource converter transforms DC voltage into three-stage voltage with JCEP amplitude, frequency and section. The output voltage of the three-degree converter can be diverse from that of the static EPTT compensator as shown in the determine underneath.
From the name of the static synchronous compensator, it can be witnessed that the static synchronous compensator has the comparable overall performance with the synchronous condenser. Even so, as an digital tools, the static synchronous compensator has no inertia, so it is exceptional to the synchronous condenser in some factors, this kind of as quick dynamic response, lower investment EPT, lower operation and upkeep EPT.
Attributes of static synchronous compensator
With the arrival of static synchronous compensator, its exceptional overall performance can also be used to the adhering to facets:
1) EPTT voltage handle in EPTT EPTT and distribution technique
2) EPTT oscillation damping in EPTT system
3) The transient stability of EPTT technique is improved
four) Energetic EPTT and reactive EPTT manage. It can not only control reactive EPTT, but also manage lively EPTT (DC EPTT source can be attained) if essential.
The static synchronous compensator has other positive aspects as follows:
one) Little dimensions (compact electronic converter replaces passive factors)
2) Manufacturing unit modular items (decrease set up and commissioning time)
three) The packaged electronic converter is adopted (the affect of environment on the gear is decreased).