SVC PLUS FS (E-STATCOM), supercapacitor STATCOM for frequency support and synthetic inertia
SVC PLUS FS® (frequency stabilizer, E-STATCOM) is a device that supports both voltage and frequency of the power system. It combines an SVC PLUS® converter based on a modular multilevel converter (MMC) with supercapacitor banks. The typical version has an installed capacity of 300 MVA and delivers ±200 MW of active power for several seconds.
- Installed capacity
- Srated = 300 MVA
- Active power
- ±200 MW (several seconds)
- Reactive power
- ±300 Mvar
- Stored energy
- 400 MJ (can be increased)
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
In normal operation the installation works as a STATCOM and controls voltage by supplying and absorbing reactive power within ±300 Mvar. When frequency deviates because of a generation deficit or surplus, the converter discharges the supercapacitors within a fraction of a second and feeds a large amount of active power into the grid. This emulates the inertia of rotating machines. In case of surplus power the capacitors are charged from the grid. This limits the development of system disturbances in grids where the share of synchronous generation is decreasing.
The stored energy of the typical version is 400 MJ and can be increased. The contribution of emulated inertia reaches 6000 MJ. Together with the power transformer the installation occupies about 4050 m². Connection to a grid of any voltage class is possible. MMC technology forms a multilevel output voltage with low harmonic distortion, and bulky filters are not needed. The control parameters are tuned to the task of a specific grid, so one platform is used in different applications. The installation delivers active power at high speed and sustains it for several seconds.
According to the manufacturer, SVC PLUS FS is not classified as a generating unit, which distinguishes it from battery energy storage systems. The device is therefore available to system operators that are not allowed to own generating assets. The installation is compact, has a high power density, low losses and simple maintenance, and produces no local CO₂ emissions.
The world's first E-STATCOM operates at the Mehrum Nord substation in Germany; the project was carried out together with TenneT. There an SVC PLUS of ±300 Mvar is combined with an ultracapacitor storage of 200 MW, and the system delivers active power to the grid within milliseconds. The facility reinforces the north-south transmission corridor of the country and eases the integration of wind generation, partly replacing the stabilizing properties of retiring coal and nuclear units.
A separate E-STATCOM version is offered for data centers to stabilize the connection of powerful loads to the grid. Customers for this equipment are transmission system operators, nodes with a high share of wind and solar plants, power systems with an inertia deficit, and large consumers and data centers that need stable voltage and frequency.
Technical specifications
| Installed capacity | Srated = 300 MVA |
|---|---|
| Active power | ±200 MW (several seconds) |
| Reactive power | ±300 Mvar |
| Stored energy | 400 MJ (can be increased) |
| Emulated inertia | up to 6000 MJ |
| Footprint | ≈ 4050 m² including power transformer |
| Technology | MMC SVC PLUS + supercapacitor units |
| Connection | to any voltage class |
Request a price and lead time
SVC PLUS FS (E-STATCOM), supercapacitor STATCOM for frequency support and synthetic inertia. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Customs codes
| UKTZED (Ukraine) | 8504 40 88 00 |
|---|---|
| HS, 6 digits | 8504 40 |
| CN (EU) | 8504 40 88 |
| HTSUS (USA) | 8504 40 95 80 |
| China customs tariff | 8504 40 99 99 |
Codes are for reference: the final code is determined at declaration for the specific model.
Questions and answers
How much active power does SVC PLUS FS deliver?
The typical version delivers ±200 MW of active power for several seconds. The installed capacity is 300 MVA.
What inertia does the E-STATCOM emulate?
The contribution of emulated inertia reaches 6000 MJ with a stored energy of 400 MJ. The energy reserve can be increased.
How much space does the SVC PLUS FS installation occupy?
Together with the power transformer the installation occupies about 4050 m². It is connected to a grid of any voltage class.
Similar equipment from other manufacturers
