The Magellan Power Solar Gate (MPSG) controls and prevents solar power from flowing into the grid ensuring all generated solar power is available for the local load. This means you can take advantage of low cost solar power and install as much you need.
The solar gate achieves this by monitoring the exact power requirement of the connected load and commanding solar inverters to produce the exact amount of power to satisfy the load.
- Power Consumption: Max 3W.
- Environmental Conditions: -20 C to 60 C, 5% to 95% R.H.
- Mounting: Wall Mount / Indoors.
- Voltage Range: 200-270V AC: 50/60Hz.
- Current Range: Up to 2000A using external CT's and setting the CT ratio of the Solar Gate.
- Contactor Control Output: 240VAC-1A.
- Controls solar export from PV inverters.
- Compatible with Magellan Energy Storage Systems, SMA Tripower and Power - One Aurora Trio.
- Accuracy of 2% for smooth power control.
- Plug and play capability allows the Magellan Power Solar Gate to ascertain number of connected inverters and their ratings to ensure equal power distribution.
- Detects excess solar power available.
- Optional contactor output to control reverse-power protection contactor, or switching non-essential fixed loads if excess solar power is available.
- Electrically Isolated RS485 connection to PV inverters.
Magellan Power Solar Gate is designed to control and prevent the export of solar power to the grid. The Magellan Power Solar Gate is flexible and can operate in two basic configurations, a compact configuration for PV plant sizes less than 30kW, and a full configuration for the larger PV plant sizes, as shown in Figures 1A and 1B. The main difference between the two configurations is that the full configuration contains a dedicated external grid protection relay, whereas the compact configuration integrates this function inside the Solar Gate.
Figure 1A: The block diagram of the Magellan Power Solar Gate in the "compact configuration" .
Figure 1A shows the block diagram of the Magellan Power Solar Gate in the compact system configuration. The Magellan Power Solar Gate communicates with the PV inverters via the RS485 communications bus, and automatically determines the size of the PV plant. It then continuously monitors the power flowing at the grid and the PV inverter output, and subtracts them to calculate the instantaneous load power. The load power is then scaled according to the permitted amount of export power, required safety margin and PV plant size. This value is then sent to the PV inverters via RS485 bus to limit their maximum power output. The compact configuration also performs an optional reverse power protection function, by directly controlling a contactor, which can isolate the PV plant output if any reverse power flow is detected at the grid. This gives a redundant protection against reverse power flow in the event any communication problems to the PV plant.
Figure 1.B : The block diagram of the Magellan Power Solar Gate in the "full configuration".
The full system block diagram of the Magellan Power Solar Gate configuration for PV plant sizes >30kW is shown in Figure 1B. As is the case with the compact configuration, the Magellan Power Solar Gate communicates with the PV inverters via the RS485 communications bus, and automatically determines the size of the PV plant. However, the Magellan Power Solar Gate directly monitors the instantaneous load power, which is then scaled according to the permitted amount of export power, required safety margin and PV plant size. This value is then sent to the PV inverters via RS485 bus to limit their maximum power output. In addition, these larger systems require a dedicated utility-compliant grid protection relay that prevents reverse power flow in case of communications problems to the PV inverters. The relay includes additional protections required by the utility such as phase displacement and grid voltage / frequency tests. The full configuration has a best dynamic performance as the PV inverters do need to be individually scanned to determine the load power.
The Solar Gate has been successfully implemented in projects in QLD, NSW and WA.
For more, email firstname.lastname@example.org
or call: 08 9434 6621