Product application
Power Conversion System (PCS) is a device to achieve energy bidirectional conversion between the battery system and the power grid (and/or load) with a variety of uses such as with peak and valley adjusting, frequency modulation, phase modulation, emergency backup, etc. It can control the charging and discharging process of the battery and convert AC and DC energy. When power grid is not connected, it can directly supply AC loads.
Product composition and characteristics
PCS is mainly composed of IGBTs, soft starter, isolation transformer, protection devices, and controller. The PCS controller receives background control instructions via communication and controls the converter according to the sign and value of the power instruction to charge or discharge the battery. The adjustment of the active power and reactive power of the power grid can be realized. Meanwhile, PCS can obtain battery group status information through CAN interface communication with BMS, dry contact transmission, etc., which can protect charging and discharging of the battery and ensure battery operation safety.
Technical specifications
|
DC side |
Model |
TPCS series |
|
Voltage range (Vdc) |
600~800 |
|
Rated power (kVA) |
100, 250, 500 |
|
Charge/discharge voltage accuracy |
≤0.5% |
|
Charge/discharge current accuracy |
≤1.0% |
|
Ripple factor |
≤0.5% |
|
AC side |
AC phase number |
Three-phase five wire system (R+S+T+N+PE) |
|
Rated power (kVA) |
100, 250, 500 |
|
Grid-connected charging/discharging |
AC voltage (Vac) |
380±15% |
|
Allowable frequency range (Hz) |
50±1 |
|
Total current harmonic distortion rate |
＜±3% (more than half load) |
|
Charging power factor |
≥0.99 (more than half load) |
|
Discharging output power factor |
-1.0~1.0 |
|
Off grid operation |
AC voltage (Vac) |
380±15% |
|
Output voltage distortion |
＜±3% (Rated linear load) |
|
Rated output frequency (Hz) |
50±2% |
|
Dynamic load voltage transient |
Within 10% (resistive load 0-100% step change) |
|
AC overload capacity |
110%, overload for 10 mins; 120%, overload for 1 mins |
|
Efficiency |
≥92% (more than half load，including transformer) |
|
Function |
Anti-island effect detection |
Active and passive island detection |
|
Display |
Colorful touch screen |
|
Communication mode |
RS485/CAN / Ethernet interface |
|
General paramet-ers |
Cooling method |
Air cooling |
|
Noise |
≤ 65dB |
|
Protection level |
IP30 |
|
Installation environment |
Indoor |
|
Safety indicators |
Meet national or industry standards |