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--- system_integration:hub4_grid_parallel-ccgx_control_loop [2015-09-18 10:37] – [7. Using the Wired HUB-4 AC Sensor to measure PV Inverter output] mvader
+++ system_integration:hub4_grid_parallel-ccgx_control_loop [2015-11-05 15:13] – [9. FAQ] mvader
@@ Line 1: / Line 1: @@
 ====== Hub-4 / grid parallel - manual ======
+=== Hub-4 development status ===
+  - The core function works fine
+  - Recently, sept 18th, we have updated the assistant. Important improvement: added Sustain, to prevent damaging batteries by leaving them discharged for a long time. More information on Sustain is available below in chapter 6
+  - The calculations behind the solar yield and consumption tab don't work 100% yet, is being looked into
+  - <del>Winter switch needs to be added (to charge batteries full and then keep them full)</del>: was added in CCGX test version v1.30~13
+  - <del>Periodic battery maintenance / battery guard needs to be added, otherwise batteries are never fully charged and this is bad for lead batteries</del>: was added in CCGX test version v1.30~13.
+  - The sustain function needs to be relaxed a little bit.
+=== Schematic overview ===
+{{ :system_integration:hub4_schema-okt2015.jpg?nolink |}}
+=== Introduction ===
 This manual explains how to use a Multi or Quattro bidirectional inverter/charger, combined with batteries, as a grid parallel energy storage system. It optimizes self-consumption: excess PV energy during the daytime is stored in the battery, and used to power the loads at night as well as during the day when there is a shortage of PV power.
@@ Line 14: / Line 27: @@
   * No minimum or maximum battery size.
   * Suitable for many battery types.
+  * Three operating modes, from basic to custom, covering both standard and highly integrated systems.
   * Free usage of the [[https://vrm.victronenergy.com|VRM Portal]] and the [[http://www.victronenergy.com/support-and-downloads/software#victron-vrm-app|VRM App]] for remote monitoring.
-{{ :system_integration:hub4_schema-juli2015.jpg?nolink |}}
+=== Operating modes ===
+  - Standard \\ The system runs automatically, and uses excess energy harvested during the day to fill the gaps when there is not enough PV power available. Easy configuration in Assistants and on the Color Control GX.
+  - Advanced \\ same as standard, but more flexibility is given to implement time shifting, load management or other energy management optimization algorithms. Either by ModbusTCP commands or by running additional self implemented code on the Color Control GX. Often the best of both worlds: complete flexibility and benefit from the VRM Portal and all other functionality already available on the CCGX, without having to add additional cost of extra PLCs or other control modules.
+  - Custom \\ customer self implements their control loop and grid measurements, and uses the MultiPlus and/or Quattros as simple, remote controllable, bidirectional inverter/chargers that can be set to either charge or discharge an x amount of Watts.
 ===== 1. Required parts =====
 ^ Part no.      ^ Description            ^
 | PMP, CMP or QUA | Multi or Quattro inverter/charger (see Note 1 below) |
-| REL200100000  | Wired AC sensor HUB-4 for 1 and 3-phase - Imax 65A |
+| REL200100000  | Wired AC sensor - 1 and 3-phase - max 65A per phase |
 | BPP000300100R | Color Control GX |
 | ASS03006xxxx  | RJ-45 UTP Cable |
-| BATxxxxxx     | Batteries. Lithium batteries are recommended due to their long life |
+| BATxxxxxx     | Batteries. (Victron) Lithium batteries are recommended due to their long life |
 ^ ENS Anti-islanding options, choose one of below options: ^^
 | No external needed | For certain countries, our Multis and Quattros have built-in certified anti-islanding protection. |
@@ Line 41: / Line 58: @@
 Notes:
-  - The Multi or Quattro used needs to be a recent type with the new microprocessor (26xxxxx or 27xxxxx). All units currently shipping have this new microprocessor. Also, the Multi or Quattro needs to run the latest 3xx firmware. Contact your Victron representative for the firmware files. Update instructions are [[updating_firmware:updating_ve.bus_products|here]].
+  - The Multi or Quattro used needs to be a recent type with the new microprocessor (26xxxxx or 27xxxxx). All units currently shipping have this new microprocessor. Also, the Multi or Quattro needs to run the latest 4xx firmware. Contact your Victron representative for the firmware files. Update instructions are [[updating_firmware:updating_ve.bus_products|here]].
-  - The RS485 to USB interface cable can be extended up to 100 meters.
+  - The RS485 to USB interface cable from the CCGX to the AC sensor can be extended up to 100 meters.
+  - The REL200100000 is the EM24DINAV93XISX from Carlo Gavazzi. Other EM24 models from Carlo Gavazzi can also be used, as the communication is the same. For example the EM24DINAV53DISX, which measures using Current Transformers. Note that this model is not stocked by Victron Energy, we recommend to purchase it locally.
 ===== 2. Battery, inverter/charger and PV dimensioning =====
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   * The assistant will disable PowerAssist. Please keep this option disabled.
   * Please keep the lithium batteries checkbox on the charger page consistent with the battery choice in the assistant.
-  * Sustain mode is entered when, during 30 seconds, the battery voltage is below the sustain level (see below) and the current drawn from the battery is smaller than 1/10th of the battery capacity.\\ In sustain mode, the charger is enabled to keep the DC voltage at the sustain level. While sustain mode is active, the power setpoint will be violated because energy will be needed to charge. (Note that this violation is limited, because the maximum sustain DC current due to sustain is limited to 5A per Multi.)\\ Sustain mode if left as soon as the battery voltages rises 0.1V above the sustain level. This can be due to an external charger or due to a changed power setpoint.\\ **Sustain level**: The sustain level is determined as follows:
-    * Lithium systems:  The sustain level is fixed to 12.5V.
-    * Non-lithium systems:  The sustain level is 12V but when the DC voltage has been below 12.5V for 24 hours, the sustain level will be set to 12.5V. In that case it will be set to 12V again when the DC voltage reaches 13V.
+=== Sustain Mode ===
+The purpose of the Sustain Mode is to prevent leaving batteries in a deeply discharged state during several days. The Sustain Mode is entered when during 30 seconds the following two conditions are met without interruption:
+  - the battery voltage is below the sustain level: 12.5V for Lithium batteries and 12V for other batteries
+  - the current drawn from the battery is smaller than 1/10th of the battery capacity
+During Sustain Mode, the charger is enabled to keep the DC voltage at the sustain level. The maximum charge current during system is 5A.
+Sustain mode is left as soon as the battery voltages rises 0.1V above the sustain level.
+Note that the normal Hub-4 regulation is suspended during Sustain. And note that, for non-lithium systems, the sustain level is 12 V for the first 24 hours, and after that it is raised to 12.5 Volts DC.
+DC voltages specified are for a 12V system. These voltages should be multiplied by 2 or 4 for a 24V or 48V system.
 ===== 7. Color Control GX configuration =====
   - Power up the system.
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 Instead of used for the Hub-4 regulation, the same three phase meter can be configured to measure output of a PV Inverter. Make sure the check Paragraph 1.3 in the [[ccgx:start|Color Control GX Manual]] for other options of measuring PV Inverter output.
-Installation is similar to the AC sensor on the grid. Terminals 1, 4 and 7 should face the PV inverter. On the CCGX change the //Role// of the meter to //PV inverter//. You can now also chose its //Position//. In the case of a Hub4 setup, this must be //Input 1//.
+Installation is similar to the AC sensor on the grid. Terminals 1, 4 and 7 should face the PV inverter. On the CCGX change the //Role// of the meter to //PV inverter//. You can now also chose its //Position//. In the case of a Hub4 setup, this must be //Input 1//. If you want to connect a single phase PV inverter to a 3-phase system connect all 3 phases to the grid phasing terminals (3, 6 and 9). Now you can chose on which phase you want the PV inverter by connecting the L1 line of the PV inverter to terminal 1, 4 or 7.
 There are 3 options to connect the extra AC sensor:
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 === Is there a winter mode, like in Hub-2? ===
-No not yet.
+Yes, this is coming in CCGX v1.30
+=== VEConfigure keeps giving the warning 'Device must be reset' ===
+This message is a bug. There is no need to reset the device. The mechanism that erroneously triggers that message will be removed in a future VE.Bus firmware version.
 ===== DISQUS =====
 ~~DISQUS~~