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ac_coupling:start [2019-01-22 10:15]
127.0.0.1 external edit
ac_coupling:start [2019-03-30 05:56]
mvader [5 Software configuration]
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 ===== 1. Introduction to the AC-Coupling concept ===== ===== 1. Introduction to the AC-Coupling concept =====
-Already familiar with the concepts of AC-coupling and regulating PV inverter output power by frequency shifting? Skip to [[:​ac_coupling:​start#​the_10_rulemax_pv_power_must_be_equal_or_less_than_the_va_rating_of_the_multi|the factor ​1.0 rule]].+Already familiar with the concepts of AC-coupling and regulating PV inverter output power by frequency shifting? Skip to the requirements and limitations:​ 
 + 
 +  - [[:​ac_coupling:​start#​the_factor_10_rule|Factor ​1.0 rule chapter]] 
 +  - [[:​ac_coupling:​start#​minimum_battery_capacity|Minimum battery capacity chapter]] 
 +  - [[:​ac_coupling:​start#​requirement_of_adding_dc-coupling_-_mppt_solar_chargers|Requirement of adding DC-Coupling]] (MPPT Solar Chargers)  
 + 
 ==== 1.1 What is AC-coupling?​ ==== ==== 1.1 What is AC-coupling?​ ====
  
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-===== 2. The 1.0 rule: Max PV power must be equal or less than the VA rating of the Multi =====+===== 2. The Factor ​1.0 rule =====
  
 +**The max PV power must be equal or less than the VA rating of the inverter/​charger**
 ==== 2.1 Rule definition ==== ==== 2.1 Rule definition ====
 In both grid-connected and off-grid systems with PV inverters installed on the output of a Multi, Inverter or Quattro, there is a maximum of PV power that can be installed. This limit is called the __factor 1.0 rule__: 3.000 VA Multi = 3.000 Wp installed solar power. So for a 8.000 VA Quattro the maximum is 8.000 Wp, for two paralleled 8000 VA Quattros the maximum is 16.000 Wp, etc. In both grid-connected and off-grid systems with PV inverters installed on the output of a Multi, Inverter or Quattro, there is a maximum of PV power that can be installed. This limit is called the __factor 1.0 rule__: 3.000 VA Multi = 3.000 Wp installed solar power. So for a 8.000 VA Quattro the maximum is 8.000 Wp, for two paralleled 8000 VA Quattros the maximum is 16.000 Wp, etc.
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   * 400 Ah accubank 12 Vdc   * 400 Ah accubank 12 Vdc
  
-==== 4 Software configuration ====+===== 4 Requirement of adding DC-Coupling - MPPT Solar Chargers ===== 
 + 
 +Not required for Energy Storage Systems in Germany or other reliable grid situations. 
 + 
 +Required for offgrid systems as well as backup systems that need to overcome extended grid failures. 
 + 
 +Reason: recover from deadlock situation of AC-Coupling only situation. 
 + 
 +===== 5 Software configuration ​=====
  
 Multis and Quattros with factory settings will not shift the AC output frequency to regulate charge current. When setting up an AC Coupled system, install either the [[ess:​start|ESS Assistant]] (for grid-connected systems) or the [[:​assistants:​pv-inverter-support]] (for off-grid systems). Multis and Quattros with factory settings will not shift the AC output frequency to regulate charge current. When setting up an AC Coupled system, install either the [[ess:​start|ESS Assistant]] (for grid-connected systems) or the [[:​assistants:​pv-inverter-support]] (for off-grid systems).
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   - Hub-4 Assistant in combination with the PV Inverter support Assistant   - Hub-4 Assistant in combination with the PV Inverter support Assistant
   - Use the Inverter period time settings on the Virtual switch tab.   - Use the Inverter period time settings on the Virtual switch tab.
 +
 +===== Monitoring =====
 +
 +See [[ccgx:​start|section 1.5 in the GX manual]].
  
 ===== DISQUS ===== ===== DISQUS =====
 ~~DISQUS~~ ~~DISQUS~~
  
ac_coupling/start.txt · Last modified: 2020-03-01 13:36 by roi.o