Canadian Solar · Deye
Canadian Solar TOPHiKu6 CS6.2-48TD-450 (All-Black) + Deye SUN-20K-SG01HP3-EU-AM2: how many panels per string
From 4 to 16 Canadian Solar TOPHiKu6 CS6.2-48TD-450 (All-Black) panels per string on an MPPT input of the Deye SUN-20K-SG01HP3-EU-AM2 inverter — in any climatic region of Ukraine. Below: the window for each region, the input currents and example plants laid out by the Solispec engine.
- Panels per string
- 4–16pcs
- Input V_max
- 1,000V
- MPPT window
- 150–850V
- Panel I_sc
- 10.68A
- MPPT input I_sc
- 39.0A
- Panel V_mp in heat
- 38.2V
Ground frame designer
A ground plant with Canadian Solar TOPHiKu6 CS6.2-48TD-450 (All-Black)
The builder opens with this panel and the Deye SUN-20K-SG01HP3-EU-AM2 inverter: Solispec lays out the strings itself.
- No sign-up
- Snow and wind check
- Drawings and estimate
String by climatic region
T_min per ДСТУ-Н Б В.1.1-27:2010, табл. 1; open-circuit voltage at T_min: K_U = 1 + α·(T_min − 25)/100 = 1.17 (α -0.25 %/K, T_min -42 °C; Annex B).
| Region | T_min | Panel U_oc at T_min, V | Min per string | Max per string | String U_oc at max, V (≤ 1,000) |
|---|---|---|---|---|---|
| Region I | -40 °C | 61.50 | 4 | 16 | 983.9 |
| Region II | -42 °C | 61.76 | 4 | 16 | 988.2 |
| Region IIIA | -38 °C | 61.23 | 4 | 16 | 979.7 |
| Region IIIB | -32 °C | 60.44 | 4 | 16 | 967.0 |
| Region IV | -20 °C | 58.85 | 4 | 16 | 941.6 |
| Region V | -27 °C | 59.78 | 4 | 16 | 956.4 |
The minimum per string keeps the string voltage in heat (panel V_mp 38.2 V) above the MPPT window (150 V).
Input currents
| Panel I_sc / MPPT input I_sc, A | 10.68 / 39.0 |
|---|---|
| Panel I_mp / MPPT input I_mp, A | 10.05 / 26.0 |
| Parallel strings per MPPT | 2 |
| MPPT inputs | 2 |
No cautions about the currents.
Example plants
The Solispec engine laid out the strings for plants of several sizes with this inverter at the lowest T_min; only those that pass the checks with every panel placed are shown.
| Plant | Panels | kW DC | Inverters | Strings | DC/AC |
|---|---|---|---|---|---|
| ≈ 5 kW | 12 | 5.40 | 1 | 12 pan. × 1 — inv. 1, MPPT 1 | 0.27 |
| ≈ 10 kW | 24 | 10.80 | 1 | 12 pan. × 2 — inv. 1, MPPT 1 | 0.54 |
| ≈ 15 kW | 34 | 15.30 | 2 | 5 pan. × 2 — inv. 1, MPPT 1; 5 pan. × 2 — inv. 1, MPPT 2; 5 pan. × 2 — inv. 2, MPPT 1; 4 pan. × 1 — inv. 2, MPPT 2 | 0.38 |
- DC/AC 0.27 — inverter oversized
- DC/AC 0.54 — inverter oversized
- DC/AC 0.45 — inverter oversized
- DC/AC 0.32 — inverter oversized
A preliminary calculation; a design needs an engineer's check. Solispec engine 0.12.0.