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• It has the maximum capacity to collect the temperature of three solar panels and the irradiance of three channels to calculate PV;

• It has the function of normal automatic closing and starting with load, automatic soft loading and soft unloading;

• Two active power control modes (fixed power and inverter control);

• Three reactive power control modes (fixed power, power factor and inverter control);

• Each energy source can set or calculate rated active power, rated reactive power and rated apparent power. The rated active power of PV power station can be calculated in real time according to sensor data and weather data, the rated power of generator set is calculated in real time according to online unit information, and the rated power set is directly used by energy storage power station and municipal power supply;

• The controller can control the priority of energy use (city power, generator set, PV power station (including wind power station), energy storage station). Each kind of energy can be set its priority separately. The smaller the priority value is, the higher the priority is;

• It can be set in the input port that the mains power is not available, PV power station is not available, generator set is not available, and energy storage station is not available. When the energy is not available, the energy will no longer provide energy and rotary reserve;

• There are four kinds of communication protocol, such as RS485, which can be used to realize the remote communication;

When there is no commercial power and the PV power is insufficient, the energy storage station shall be used; if the energy storage station is insufficient, the power generation shall be used; if the PV power is sufficient, the energy storage shall be charged. The minimum load of the unit shall be ensured when generating power.

Setting mode: island mode

Setting priority: PV > energy storage > power generation

When the energy storage power station is started (VF), PV is switched on to generate power, and PV power is controlled to ensure that the energy storage station does not reverse power;

When the power or rotating reserve of the energy storage station is insufficient, the generator set starts (VF), and the energy storage station changes to PQ mode;

When the capacity of the energy storage station is insufficient, the generator set starts (VF), the energy storage station stops and exits the power supply sequence;

When the energy storage station exits the power supply sequence, if the PV power is sufficient, the energy storage station will be charged until the charging reaches the required capacity, and then it will enter the power supply sequence again, and the energy storage station will start up (PQ);

When the power station is sufficient, the VF unit will be transferred to reserve mode when the power station is shut down.