Solar Power 100 Self Consumption Sma Solar Technology-Books Pdf

Solar Power 100 Self Consumption SMA Solar Technology
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SMA Solar Technology AG, The following details the products sold by SMA Solar Technology AG and describes their use for. self consumption, SMA Solar Technology AG expressly recommends that you contact the local network operator before you. install a PV plant based on this concept, Necessary Products. The following products and functions are necessary in order to install a PV plant for complete self consumption. SMA inverters that are compatible with the SMA Power Control Module see below. SMA Power Control Module, Current or power measuring device to be selected by the installer. Programmable logic controller PLC that is to be selected and programmed by the installer. Solution 1 Installation of a Control Circuit, Figure 1 Example of a PV plant for complete self consumption control circuit.
The aim is to reduce the active power of the inverter as soon as feed in of the generated PV power into the. electricity grid is registered The measuring device measures the size and direction of the flow of current at the. feed in point continuously and transmits the information to the PLC which in turn controls all SMA Power Control. Modules of the inverters present in the PV plant in small power increments. 2 ZE PCM TI en 20 Technical Information, SMA Solar Technology AG. Solution 2 Control of the Maximum Active Power Generated by the Inverter. Figure 2 Example of a PV plant for complete self consumption control. The measuring device continuously measures the power consumed by the loads and transmits this to the PLC. The PLC converts this value into the next smallest power reduction step and controls the inputs of the. SMA Power Control Modules with this As a result it is not possible that more power is fed in than consumed. SMA Power Control Module, Based on the nominal power of the inverter the SMA Power Control Module can reduce the active power. between 100 and 0 In PV plants with several inverters each inverter has to be equipped with an. SMA Power Control Module A maximum of five inverters can be controlled with an SMA Power Control. Module in parallel operation, The digital inputs of the SMA Power Control Module are programmable There are a total of 16 setting. possibilities or entry combinations The option No active power limitation 100 must be assigned to a. combination that has at least one active pin For the option Active power limitation 0 it must be configured. that all pins are open In the event of a PLC disturbance no signal will be sent and as a result the PV system. stops feeding in The PLC must here also be configured in such a way that a signal is only transmitted if data is. being received from the measuring device, In order to block an entry combination the value 1 must be entered in the communication product. This allows that unassigned entry combinations can be blocked. Technical Information ZE PCM TI en 20 3, SMA Solar Technology AG.
The following table shows how the SMA Power Control Module influences the active power of the inverter via. four digital inputs, Digital input Digital input Digital input Digital input Display in the Value. D1 D2 D3 D4 communication product example, Sunny Explorer. Open Open Open Open D1 0 D2 0 D3 0 D4 0 0, Closed Open Open Open D1 1 D2 0 D3 0 D4 0 5. Open Closed Open Open D1 0 D2 1 D3 0 D4 0 10, Closed Closed Open Open D1 1 D2 1 D3 0 D4 0 16. Open Open Closed Open D1 0 D2 0 D3 1 D4 0 23, Closed Open Closed Open D1 1 D2 0 D3 1 D4 0 30.
Open Closed Closed Open D1 0 D2 1 D3 1 D4 0 36, Closed Closed Closed Open D1 1 D2 1 D3 1 D4 0 42. Open Open Open Closed D1 0 D2 0 D3 0 D4 1 50, Closed Open Open Closed D1 1 D2 0 D3 0 D4 1 57. Open Closed Open Closed D1 0 D2 1 D3 0 D4 1 65, Closed Closed Open Closed D1 1 D2 1 D3 0 D4 1 72. Open Open Closed Closed D1 0 D2 0 D3 1 D4 1 80, Closed Open Closed Closed D1 1 D2 0 D3 1 D4 1 86. Open Closed Closed Closed D1 0 D2 1 D3 1 D4 1 93, Closed Closed Closed Closed D1 1 D2 1 D3 1 D4 1 100.
Figure 3 SMA Power Control Module pin assignment, 4 ZE PCM TI en 20 Technical Information. SMA Solar Technology AG, If the network operator does not allow that the inverter still feeds in a low amount of active power when. limited to 0 the following parameter for grid disconnection should be set Setting this parameter opens the. grid relays at a command of 0 whereby the inverter disconnects from the electricity grid and no power can. be fed in Depending on the type of communication and the communication product used the parameter name. Type of communication Parameter name Setting, Bluetooth Wireless Plant and device control Yes. Technology Configuration of the feed in management No. Grid disconnection at setpoint of 0 or 0 W, Configuration of feed in management. RS485 P GriSwOpnZerW Yes, When the parameter is activated Yes Ja the inverter disconnects from the electricity grid when the signal.
0 is issued When the parameter is deactivated No Nein the inverter continues to feed in with minimum. power at a command of 0, The reduction of the active power to the 16 set values can be realised within five seconds grid disconnection. is possible within two seconds, The following SMA inverters can be equipped with the SMA Power Control Module ex works or retrofitted. Sunny Boy From firmware version Sunny Tripower From firmware version. SB 2500TLST 21 V 2 50 STP 5000TL 20 V 2 02, SB 3000TLST 21 V 2 55 STP 6000TL 20 V 2 51. SB 3000TL 21 STP 7000TL 20, SB 3600TL 21 STP 8000TL 20. SB 4000TL 21 STP 9000TL 20, SB 5000TL 21 STP 8000TL 10 V 2 50.
STP 10000TL 10 V 2 55, STP 12000TL 10, STP 15000TL 10. STP 17000TL 10, STP 15000TLEE 10 V 2 51, STP 20000TLEE 10 V 2 54. for simplified active power limitation, for finely graded active power limitation. You will find additional information in the SMA Power Control Module installation manual and in the. technical information SMA Power Control Module Multi function Interface for PV Inverters. see www SMA Solar com, Technical Information ZE PCM TI en 20 5. SMA Solar Technology AG, The ideal configuration of the PLC logic and the communication structure depends on several factors.
for example type size and number of loads and possible specifications of the network operator. Therefore SMA Solar Technology AG is not able to supply a complete manual However the following. considerations serve as an aid to the configuration of an efficient system. If the PV plant is made up of more than five inverters the PV plant must be sub divided into several groups. Each group must consist of a maximum of five inverters Each inverter in a group must be equipped with an. SMA Power Control Module and the inverters must be connected in order that the SMA Power Control. Modules can transmit the signal within a group, A further possibility is the direct communication with each SMA Power Control Module This allows more. flexibility but can result in a significant number of digital outputs of the PLC If the active power has to be. reduced to a value other than 0 e g 60 and 30 the installation can be configured in such a way that. one or more inverters disconnect s from the electricity grid instead of limiting the active power of all inverters. to 60 or 30 The necessary active power limitation is therefore effective after two seconds. Ensuring Self Consumption in the Event of a Fault in the Measuring Device or the PLC. In the event of a disturbance the SMA Power Control Module does not receive a signal all digital inputs are. open and the inverter limits the active power to 0 see table and no longer feeds into the electricity grid. In some cases network operators specify the non feed in of 0 watts under fault conditions e g in the event of. a fault in the PLC or the measuring device In these cases the parameters Grid disconnection at setpoint of. 0 or 0 W Configuration of feed in management or P GriSwOpnZerW must be set see table 2. This technical information describes how you can use the generated PV energy for self consumption with the help of dynamic active power limitation and amongst other thin gs through the use of the SMA Power Control Module without feeding into the electricity grid In addition to the SMA products however further products are necessary for this solution Solar Power 100 Self Consumption

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