What are the characteristics of different communication methods of inverters?
The characteristics of different communication methods of inverters are obvious, and the application scenarios are different. In order to better weave the underlying network of energy digitization and intelligent development, choose the most appropriate communication method according to local conditions.
How does a low voltage inverter work?
The data signal is connected to the low-voltage busbar through the power line on the AC side of the inverter, the signal is analyzed by the inverter supporting the data collector, and the communication is finally connected to the local power station management system or the cloud platform through the LAN or the Internet 2. Application scenario 4.
How do I configure a solar inverter?
Configuration is carried out under "Name of your system" > Settings > Equipment & device control system (Solar Inverters) > Act. power lim. via PV system ctrl. The Sunny Portal is available for visualization of active power control at the grid-connection point.
What is a cluster controller?
In the control of a PV system, external setpoints (e.g. for power limitation) are transferred directly to the inverters. This feature is used, for example, in large PV systems with direct active power feed-in. The Cluster Controller assumes the role of a central communication unit in this case.
How do inverters affect a transient response?
This transient response can be influenced by the inverter parameter Active power gradient (see Section 3.5, "Configure control speed of inverters"). Note also that with a 0-watt closed-loop control in the PV system, there is always a base load (self-consumption) of approx. 25 W x number of inverters in the PV system.
How do I configure a cluster controller?
Configuration is carried out under Cluster Controller > Grid management services > General settings. To record the actual value, that is, the measured system active power at the grid-connection point, you must select the measurement source used ( ). The Cluster Controller can receive and process the actual value in three ways:
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