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how_to:dc_dispatch_and_ac_dispatch [2019/05/20 03:14] admin [What is DC dispatch and AC dispatch] |
how_to:dc_dispatch_and_ac_dispatch [2020/09/16 21:42] (current) |
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| Sinexcel PCS supports DC dispatch and AC dispatch | Sinexcel PCS supports DC dispatch and AC dispatch | ||
| ===== What is DC dispatch and AC dispatch ===== | ===== What is DC dispatch and AC dispatch ===== | ||
| - | A inverter is a bi-port network, it has two ports, DC and AC. In theory, the AC power equals to DC power, if there' | + | An inverter is a bi-port network, it has two ports, DC and AC. In theory, the AC power equals to DC power, if there' |
| - | But actually, there is a efficiency issue. We have the following equtions | + | But actually, there is an efficiency issue. We have the following equtions |
| In Charging | In Charging | ||
| Line 12: | Line 12: | ||
| Once one of $P_{DC}$ and $P_{AC}$ is designated, the other one is determined. | Once one of $P_{DC}$ and $P_{AC}$ is designated, the other one is determined. | ||
| + | |||
| + | Depending on the designated port, there is AC dispatching mode and DC dispatching mode | ||
| + | |||
| + | ===== AC dispatch===== | ||
| + | |||
| In AC dispatch mode, | In AC dispatch mode, | ||
| + | |||
| You can | You can | ||
| - | * designate AC active power | + | * designate AC active power (total, but NOT each string for multi-string version) |
| - | * designate AC reactive power | + | * designate AC reactive power |
| - | * activate | + | * activate PF-P, Volt-VAr, Freq-Watt, Volt-Watt |
| You can NOT | You can NOT | ||
| - | * designate DC power | + | * designate DC power |
| - | * nor designate DC current | + | * designate DC current |
| + | |||
| + | ===== String dispatch===== | ||
| + | |||
| + | |||
| + | String dispatch mode is kind of AC dispatching for multi-string PCS, | ||
| + | |||
| + | You can | ||
| + | * designate AC active power** of each string for multi-string version**, but NOT total power | ||
| + | * designate AC reactive power in total (total, but not each string for multi-string version) | ||
| + | * activate PF-P, Volt-VAr, Freq-Watt, Volt-Watt | ||
| + | You can NOT | ||
| + | * designate DC power | ||
| + | | ||
| + | ===== DC dispatch===== | ||
| In DC dispatch mode, | In DC dispatch mode, | ||
| + | |||
| You can | You can | ||
| - | * designate DC power but not DC current | + | * designate DC power but not DC current |
| - | * or designate DC current but not DC power | + | * or designate DC current but not DC power (of each string for multi-string version) |
| You can NOT | You can NOT | ||
| * designate AC active power | * designate AC active power | ||
| * designate AC reactive power | * designate AC reactive power | ||
| - | * activate | + | * activate PF-P, Volt-VAr, Freq-Watt, Volt-Watt |