Solutions
Power conversion system & MV skid
A power conversion system is a critical component of any battery energy storage system. Its primary role is to convert electrical energy between DC and AC, while efficiently managing the flow of power between the battery system and connected loads or the grid.
Integrated into a medium-voltage skid, the PCS becomes part of a compact, streamlined solution that simplifies installation, reduces site work and ensures reliable delivery of power to the grid.
InoBat maintains partnerships with well-established European and Asian suppliers, delivering and installing PCS according to the proposed system requirements and customer preference.
Features
- Use alone or in combination with an MV station and RMU
- Modular design, modules from 215 kVA to 2000 kVA, allowing the system to run at various power levels or C-rates per customer preference, up to 0.5C. Total output power up to and exceeding 10 MVA
- Four-quadrant active and reactive power control
- Maximum efficiency up to 99%
- Millisecond-level power response to EMS / SCADA
- MV station transformer up to 33 kV (contact us for other voltage levels)
- SF6-free RMU option available
- Typically delivered in a standard 20 ft or 40 ft container
DC parameters
| Max. DC voltage | 1500 V |
|---|---|
| Max. DC current | N × 208–2245 A (N = number of PCS modules) |
| Battery DC voltage range | 1000–1500 V |
| Number of DC inputs | N × 1 / 4 / 8 (based on PCS branches) |
AC parameters (on-grid)
| AC output power | N × 215–2000 kVA at 45 °C |
|---|---|
| PCS nominal AC voltage | 690 V, 3W+PE |
| PCS AC voltage range | 607–759 V (adjustable) |
| PCS max. AC current | N × 208–1841 A |
| Nominal grid frequency | 50 / 60 Hz |
| Harmonic (THDi) | < 1.5% at 100% load |
| Power factor | –1 to +1 |
MV skid configurations
2.5 MW
DC block 5 MWh
- Rated power
- 2.5 MW continuous
- Energy capacity
- typically 5–7.5 MWh per installation
- Response time
- < 1 s for grid support and back-up
- Round-trip efficiency
- up to 93% at DC block
- Operating temperature
- –20 °C to +50 °C (with thermal management)
- Availability
- designed for 24/7 operation with high reliability
- Containerised design
- ISO 20 ft
5 MW
DC block 10 MWh
- Rated power
- 5 MW continuous
- Energy capacity
- typically 10–20 MWh
- Response time
- < 1 s for grid support, frequency regulation and back-up
- Round-trip efficiency
- up to 93% at DC block
- Operating temperature
- –20 °C to +50 °C
- Availability
- designed for 24/7 operation with high reliability
- Containerised design
- ISO 40 ft
7.5 MW
DC block 15 MWh
- Rated power
- 7.5 MW continuous
- Energy capacity
- typically 15–30 MWh
- Response time
- < 1 s for grid support, frequency regulation and back-up
- Round-trip efficiency
- up to 93% at DC block
- Operating temperature
- –20 °C to +50 °C
- Availability
- designed for 24/7 operation with high reliability
10 MW
DC block 20 MWh
- Rated power
- 10 MW continuous
- Energy capacity
- typically 20–40 MWh
- Response time
- < 1 s for grid support, frequency regulation and back-up
- Round-trip efficiency
- up to 93% at DC block
- Operating temperature
- –20 °C to +50 °C
- Availability
- designed for 24/7 operation with high reliability
Energy capacity depends on project design. Contact us to configure a system for your site.