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GOODWE AC Retrofit Solution (North America Only)

2021-09-07 20:27

For the unique market demands (retrofit solution and split grid), GOODWE developed A-BP series which have an output power ranging from 5 kW to 9.6 kW. GOODWE A-BP series can support full back-up application and partial back-up application.

 

Application

According to different requirements, GOODWE can provide two different applications. Namely, full back-up application and partial back-up application.

Note:

1. Generac ATS has been tested. (GOODWE ATS COMING SOON)

2. GOODWE Smart Meter GM2000 is built in A-BP

 

Table 1. Application Scenarios of A-BP Full Back-up Solution

Note:

1. Generac ATS has been tested. (GOODWE ATS COMING SOON)

2. GOODWE Smart Meter GM2000 is built in A-BP.

3. Loads need to be classified into on-grid loads and back-up loads

 

Table 2. Application Scenarios of A-BP Partial Back-up Solution

Micro-Grid Solution

When grid power fails, A-BP automatically switches to back-up mode. The solar inverter automatically switches to back-up side from on-grid side of A-BP through Generac ATS. The solar inverter continues to work to support loads and charge the battery. A micro-grid system works according to the following table:

 

Table 3. Micro-Grid System Working Logic

Micro Grid Frequency Shifting

When the battery SOC is high and the charging power is detected or charging current is limited, A-BP will increase the output frequency, causing the solar inverter to reduce the output power, until the battery enters a low-power discharge state.

 

A micro-grid system configuration must meet the following rules.

1.A micro-grid system only supports one solar inverter.

2.If the solar panel and solar inverter have been installed, when you select the capacity of A-BP and battery, please satisfy the following constraint formula. PA-BP ≥ P_ solar inverter Min {Min. VBAT*Min {Max. IBAT_Chg, Max.IA-BP_BatChg},PA-BP} ≥ Min{PPanel,PPVInverter}

3.The battery voltage in the micro-grid system must not be higher than 405V.

4.The solar inverter must respond to the following Frequency-Watt curve. (in Figure 4)

5.When the frequency is shifted to over 60.5 Hz, solar inverter will shut down in 5 minutes.

Note:

PA-BP : Rated Power of A-BP

P_ solar inverter : Rated Power of the solar Inverter

PPanel : Rated Power of the Panel

Min.VBAT : Minimum Output Voltage of the Battery

Max.IBAT-Chg : Maximum Charging Current of the Battery

Max.IA-BP_BatChg : Maximum Battery Charging Current of A-BP

 

Export Power Limitation

When the CT detects the signal of exporting power, export power limitation can be realized if Lithium-ion battery hasn’t been full charged. After the Lithium-ion battery has been full charged, export power limitation totally depends on whether solar inverter has such function or not.

 

Note:

When grid is unavailable, solar inverter will lose signal of export power limitation which is enabled. A continue working solar inverter ensures a successful micro-grid system.

 

Table 4. A-BP Compatible Battery List

Note:

*LG RESU 10H Type-R battery is incompatible with A-BP under micro-grid system circumstance

 

Table 5. GOODWE Battery Information

 

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