assistants:self_consumption_hub-1_policy-5
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assistants:self_consumption_hub-1_policy-5 [2016-01-08 16:39] – ictbeheer | assistants:self_consumption_hub-1_policy-5 [2019-01-22 10:16] (current) – external edit 127.0.0.1 | ||
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- | ====== Hub-1 - Policy ' | + | ====== |
- | This policy is intended | + | For new installes, this policy has been deprecated. |
+ | |||
+ | Use [[ess: | ||
+ | |||
+ | ===== Original text ===== | ||
+ | |||
+ | This policy is intended | ||
To keep the text short, ' | To keep the text short, ' | ||
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* Install a [[https:// | * Install a [[https:// | ||
* Install a [[https:// | * Install a [[https:// | ||
+ | * The battery capacity, although displayed on the VEConfig settings summary screen in the assistant, is irrelevant when choosing this option. For this reason, the assistant will not ask for it. | ||
==== How it works ==== | ==== How it works ==== | ||
* The system will always be connected to the grid, unless there is a power outage. | * The system will always be connected to the grid, unless there is a power outage. | ||
* During a power outage, the Multi will power the loads from the battery, until the Low DC voltage disconnect set-point has been reached. This set-point is configured on the Inverter tab in VEConfigure3. | * During a power outage, the Multi will power the loads from the battery, until the Low DC voltage disconnect set-point has been reached. This set-point is configured on the Inverter tab in VEConfigure3. | ||
- | * After a power outage, grid and solar will be used to charge the batteries. By default, charging from solar power is not prioritized over charging from the grid, as the goal is to recharge the batteries as fast as possible and be ready for the next power outage. | + | * After a power outage, grid and solar will be used to charge the batteries. By default, charging from solar power is not prioritized over charging from the grid, as the goal is to recharge the batteries as fast as possible and be ready for the next power outage. |
* Once batteries are fully charged (Multi switches to float), excess solar will be used to power AC loads as soon as the total AC load exceeds 50 Watt. In this process the DC voltage will drop to 13V / 26V / 52V for lead batteries and 13.4V / 26.8V / 53.6V for Lithium batteries. These voltage are chosen such that the battery will not be discharged, while being low enough to take power from the MPPT charger and use it to power the AC loads. | * Once batteries are fully charged (Multi switches to float), excess solar will be used to power AC loads as soon as the total AC load exceeds 50 Watt. In this process the DC voltage will drop to 13V / 26V / 52V for lead batteries and 13.4V / 26.8V / 53.6V for Lithium batteries. These voltage are chosen such that the battery will not be discharged, while being low enough to take power from the MPPT charger and use it to power the AC loads. | ||
* Input current limiter (Power Assist): | * Input current limiter (Power Assist): | ||
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* Absorption phase is not skipped during charge, in contrast to the other polices in Hub-1. Because of this, and also because the grid will be used to charge the battery, there is no automatic maintenance charge needed. To do an equalization charge, trigger it manually by toggling the front switch on the Multi. Note that enabling (automatic) equalization on the MPPT might not always work: when there are AC loads, the Multi will take the extra power from the MPPT and use it to power AC loads, instead of letting the MPPT perform its equalization phase. | * Absorption phase is not skipped during charge, in contrast to the other polices in Hub-1. Because of this, and also because the grid will be used to charge the battery, there is no automatic maintenance charge needed. To do an equalization charge, trigger it manually by toggling the front switch on the Multi. Note that enabling (automatic) equalization on the MPPT might not always work: when there are AC loads, the Multi will take the extra power from the MPPT and use it to power AC loads, instead of letting the MPPT perform its equalization phase. | ||
* This policy can be used in single-, split and three phase configurations. The Hub-1 Assistant must be loaded in all phase masters or, in case of using a VE.Bus BMS, in all devices. The easy way is just to load it in all devices. If it is not needed in a device, you will get a notification about that. | * This policy can be used in single-, split and three phase configurations. The Hub-1 Assistant must be loaded in all phase masters or, in case of using a VE.Bus BMS, in all devices. The easy way is just to load it in all devices. If it is not needed in a device, you will get a notification about that. | ||
+ | * Note that solar power will only be used to power the loads when the Multi is in float. The loads will be powered from the grid during the bulk and absorption phase. | ||
=== Advanced: changing charge current from grid based on Battery SOC === | === Advanced: changing charge current from grid based on Battery SOC === | ||
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===== DISQUS ===== | ===== DISQUS ===== | ||
~~DISQUS~~ | ~~DISQUS~~ | ||
+ |
assistants/self_consumption_hub-1_policy-5.1452267573.txt.gz · Last modified: 2016-01-08 16:39 by ictbeheer