assistants:pv-inverter-support
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assistants:pv-inverter-support [2018-06-22 16:55] – [3. Frequency control details] pba | assistants:pv-inverter-support [2023-10-10 11:47] (current) – [1. When to use] sloges | ||
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===== 1. When to use ===== | ===== 1. When to use ===== | ||
- | Use this Assistant in Off-grid systems that have AC-Coupled solar power: a grid-tie PV inverter connected to the AC out of a Multi or Quattro | + | Use this Assistant in Off-grid systems that have AC-Coupled solar power: a grid-tie PV inverter connected to the AC out of an inverter |
- | Also use this Assistant for systems connected to the grid, that for a particular reason are not setup as ESS and its Assistant. | + | Compatible with Multis, Quattros as well as Inverters |
- | Usually all mains-connected systems do need the ESS Assistant, and in that case do not also install the PV Inverter Assistant. | + | Also use this Assistant for systems connected to the grid, that for a particular reason are not setup as ESS and therefor not using the ESS Assistant. |
===== 2. Summary of functionality ===== | ===== 2. Summary of functionality ===== | ||
When the system is in inverter mode, this Assistant controls the output power of the grid-tie inverter by changing the AC output frequency of the system. A mechanism commonly refered to as Frequency Shifting. It does so to regulate the charge process: limiting the output power of the Grid-tie inverter to proper manage the charge and also prevent overcharge of the batteries. | When the system is in inverter mode, this Assistant controls the output power of the grid-tie inverter by changing the AC output frequency of the system. A mechanism commonly refered to as Frequency Shifting. It does so to regulate the charge process: limiting the output power of the Grid-tie inverter to proper manage the charge and also prevent overcharge of the batteries. | ||
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The Assistant will use the AC-output frequency to keep both the charge current and the charge voltage within limits. | The Assistant will use the AC-output frequency to keep both the charge current and the charge voltage within limits. | ||
- | To prevent overshoots because of varying solar irradiance and/or load fluctuations, | + | To prevent |
===== 4. Related documentation ===== | ===== 4. Related documentation ===== | ||
* [[: | * [[: | ||
- | * [[: | ||
* [[ac_coupling: | * [[ac_coupling: | ||
* [[ccgx: | * [[ccgx: | ||
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Alternatively, | Alternatively, | ||
- | To prevent this from happening again, check your configured | + | To prevent this from happening again, check your configured |
Notes: | Notes: | ||
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* the mentioned 53 Hz is the PV Inverter disconnect frequency as configured in the Assistant, default 53 Hz. | * the mentioned 53 Hz is the PV Inverter disconnect frequency as configured in the Assistant, default 53 Hz. | ||
- | ===== 5. DISQUS ===== | + | |
- | ~~DISQUS~~ | + |
assistants/pv-inverter-support.1529679308.txt.gz · Last modified: 2018-06-22 16:55 by pba