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<p>Dynamic load management is a sophisticated feature that empowers users to efficiently control electric load by managing a group of chargers installed within a single circuit. Through the implementation of modbus RS-485 communication, the chargers are able to communicate with one another and dynamically adjust their charging power in response to the load on the grid, ensuring optimal charging operations and grid stability.</p>
<p>Dynamic load management is a sophisticated feature that empowers users to efficiently control electric load by managing a group of chargers installed within a single circuit. Through the implementation of modbus RS-485 communication, the chargers are able to communicate with one another and dynamically adjust their charging power in response to the load on the grid, ensuring optimal charging operations and grid stability.</p>
<h2>DLM Types</h2>
<h2>DLM Types</h2>
<p>Dynamic load management (DLM) is a versatile solution applicable in various scenarios, providing users with the flexibility to choose between using it with or without a smart meter. Here are the key distinctions:</p>
<p>Dynamic load management (DLM) is a versatile solution applicable in various scenarios, providing users with the flexibility to choose between using it with Ct clamp. Here are the key distinctions:</p>
=== DLM with smart meter: ===
=== DLM with smart meter: ===
<p>This configuration enables users to efficiently manage the electric load between chargers and other electronic devices. By leveraging the capabilities of a smart meter, precise control and optimization of the overall load can be achieved.</p><p>[[File:DLM with meter.png|frameless|824x824px]]</p><p></p>
<p>This configuration enables users to efficiently manage the electric load between chargers and other electronic devices. By leveraging the capabilities of a smart meter, precise control and optimization of the overall load can be achieved.</p><p>[[File:DLM with meter.png|frameless|824x824px]]</p><p>''[[Supported smart energy meters for Dynamic load balancing and Solar integration|--> Supported energy meters]]''</p><p></p>
=== DLM without smart meter: ===
=== DLM without smart meter: ===
These settings must be configured for all chargers in the circuit, regardless of whether they are slaves and have direct communication with the meter. These settings establish the communication protocol between the master-slave and master-meter.
These settings must be configured for all chargers in the circuit, regardless of whether they are slaves and have direct communication with the meter. These settings establish the communication protocol between the master-slave and master-meter.
# '''Measure grid load''': This setting should be enabled if DLM functionality with a meter is desired. If there are no plans to use a smart meter, it is important to disable this setting to prevent meter errors due to lack of connection. Please note that this setting is exclusively available for the master charger.
# '''Measure grid load''': This setting should be enabled if DLM functionality with a meter is desired. If there are no plans to use a smart meter, it is important to disable this setting to prevent meter errors due to lack of connection. Please note that this setting is exclusively available for the master charger.
# '''Phase sharing mode''' - This configuration determines the type of chargers being used in the circuit. If all chargers are connected to a single phase, select "1 Phase." If all chargers are connected to three phases, select "3 Phase." If there is a mix of one-phase and three-phase chargers, select "Mixed."
# '''Phase sharing mode''' - This configuration determines the type of chargers being used in the circuit. If all chargers are connected to a single phase, select "1 Phase." If all chargers are connected to three phases, select "3 Phase." If there is a mix of one-phase and three-phase chargers, select "Mixed."
#* For example, if all chargers are connected to a three-phase grid and "Mixed" is selected, it allows for the possibility that, in case of insufficient power, some chargers may start the charging process on a single phase. Please note that this setting is exclusively available for the master charger.
#* ''In unbalanced grid cases (severe differences of load on phases), "mixed" mode can be used to optimise the number of charging vehicles. In this case the current is firstly distributed for 3 phase capable EVSEs, and when there is a significant surplus of power on any phase, the other EVSEs will use 1 phase charging mode.''
# '''Current sharing mode''' - There are two distinct current sharing modes available:
# '''Current sharing mode''' - There are two distinct current sharing modes available:
#* Equal distribution: Energy will be distributed equally among all active chargers.
#* Equal distribution: Energy will be distributed equally among all active chargers.
#** ''For example, if we have a 100 A grid and five connected chargers, each capable of accepting 30 A, the first three chargers will receive 30 A each. The fourth charger will receive only 10 A, and the fifth charger will not initiate the charging process at all. This setting is exclusive to the master charger.''
#** ''For example, if we have a 100 A grid and five connected chargers, each capable of accepting 30 A, the first three chargers will receive 30 A each. The fourth charger will receive only 10 A, and the fifth charger will not initiate the charging process at all. This setting is exclusive to the master charger.''
# '''Phase connection''' - The user needs to select this option for each charger in the circuit. This setting configures the charger type, whether it is a single-phase, two-phase, or three-phase charger. Configuring this accurately is crucial for more efficient load balancing. It is important to ensure that the phase numbering aligns with the meter's phase numbering; otherwise, DLM functionality may be affected.
# '''Phase connection''' - The user needs to select this option for each charger in the circuit. This setting configures the charger type, whether it is a single-phase, two-phase, or three-phase charger. Configuring this accurately is crucial for more efficient load balancing. It is important to ensure that the phase numbering aligns with the meter's phase numbering; otherwise, DLM functionality may be affected.
# '''Slave Modbus address start''' - This setting is exclusive to the master charger. The administrator needs to specify the starting address for the slave chargers. For instance, if the start address is set to 1, the first slave charger should have address 1, the second should have address 2, the third should have address 3, and so on.
# '''Slave Modbus address start''' - This setting is exclusive to the master charger. The user needs to specify the starting address for the slave chargers. For instance, if the start address is set to 1, the first slave charger should have address 1, the second should have address 2, the third should have address 3, and so on.
# Each slave charger has its own specific setting called "'''Slave Modbus address'''". This setting must be configured individually for each charger.
# Each slave charger has its own specific setting called "'''Slave Modbus address'''". This setting must be configured individually for each charger.
# '''Number of devices''' - This setting is available only for the master charger. The administrator must specify the total number of slave chargers that will be connected in the circuit.
# '''Number of devices''' - This setting is available only for the master charger. The administrator must specify the total number of slave chargers that will be connected in the circuit.
[[Category: Advanced Topics]]
