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Both sides previous revision Previous revision Next revision | Previous revision | ||
hmi:settings [2019/07/01 21:39] admin [End of charge current] |
hmi:settings [2020/09/16 21:42] (current) |
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* DC dispatch | * DC dispatch | ||
- | refer to [[how_to: | + | Refer to [[how_to: |
In most applications, | In most applications, | ||
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==== Reactive power regulation mode ==== | ==== Reactive power regulation mode ==== | ||
- | there are 3 modes supported in regulating reactive power | + | There are 3 modes supported in regulating reactive power |
* Constant reactive power\\ | * Constant reactive power\\ | ||
* Constant PF\\ - the reactive power will be designated by [[#PF setpoint]] and [[#active power setpoint]] | * Constant PF\\ - the reactive power will be designated by [[#PF setpoint]] and [[#active power setpoint]] | ||
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- | ====Advanced | + | ====Smart Inverter |
If [[#Power change mode]] is set to **ramp**, in normal operation, the power setpoint changes, the actual import/ | If [[#Power change mode]] is set to **ramp**, in normal operation, the power setpoint changes, the actual import/ | ||
- | ====Advanced | + | ====Smart Inverter |
- | Upon starting to inject power into the grid, following a period of inactivity or a disconnection, | + | AKA Connect/ |
- | inverter will be able to control its rate of increase of power from 1 to 100% maximum current per second. | + | Upon starting to inject power into the grid, following a period of inactivity or a disconnection, |
- | ==== Advanced | + | ==== Smart Inverter |
+ | Following a trip, the Smart Inverter must delay re-energization or reconnection for a preset period of time once the voltage and frequency of the | ||
+ | grid are within normal ranges. | ||
==== Off-grid voltage regulation ==== | ==== Off-grid voltage regulation ==== | ||
This setpoint will tune the off-grid voltage within the range of ±10% of the the rated AC voltage. | This setpoint will tune the off-grid voltage within the range of ±10% of the the rated AC voltage. | ||
==== Active power regulation mode ==== | ==== Active power regulation mode ==== | ||
- | there are 3 modes supported in regulating active power | + | there are 4 modes supported in regulating active power |
* Constant active power\\ | * Constant active power\\ | ||
* Freq-Watt\\ | * Freq-Watt\\ | ||
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- | ====Advanced | + | ====Smart Inverter |
Disable or enable F/VRT (Frequency Ride-through and Voltage Ride-through) | Disable or enable F/VRT (Frequency Ride-through and Voltage Ride-through) | ||
- | ====Advanced | + | ====Smart Inverter |
By enabling this option, the anti-islanding function will be activated | By enabling this option, the anti-islanding function will be activated | ||
==== Off-grid power starting ==== | ==== Off-grid power starting ==== | ||
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both of the two options take effect ONLY when [[#Energy dispatching mode]] is set to DC dispatch | both of the two options take effect ONLY when [[#Energy dispatching mode]] is set to DC dispatch | ||
- | ====dis-/charge current setpoint==== | + | ====Dis-/charge current setpoint==== |
The PCS will import/ | The PCS will import/ | ||
This setpoint takes effect ONLY when [[#Energy dispatching mode]] is set to **DC dispatch**, and [[#DC operation mode]] is set to** Constant current** | This setpoint takes effect ONLY when [[#Energy dispatching mode]] is set to **DC dispatch**, and [[#DC operation mode]] is set to** Constant current** | ||
- | ====dis-/charge power setpoint==== | + | ====Dis-/charge power setpoint==== |
The PCS will import/ | The PCS will import/ | ||
This setpoint takes effect ONLY when [[#Energy dispatching mode]] is set to **DC dispatch**, and [[#DC operation mode]] is set to** Constant power** | This setpoint takes effect ONLY when [[#Energy dispatching mode]] is set to **DC dispatch**, and [[#DC operation mode]] is set to** Constant power** | ||
- | ==== lower limit voltage of battery ==== | + | ==== Lower limit voltage of battery ==== |
This is the secondary under-voltage criterion. If the voltage reaches this threshold, it's critical for the ESS. the EMS must consider charging the battery at this moment. | This is the secondary under-voltage criterion. If the voltage reaches this threshold, it's critical for the ESS. the EMS must consider charging the battery at this moment. | ||
Usually this threshold should be set 5~10V lower than [[#end of discharge voltage]] | Usually this threshold should be set 5~10V lower than [[#end of discharge voltage]] | ||
- | ==== float charge voltage ==== | + | ==== Float charge voltage ==== |
A legacy setpoint for lead-acid battery. If you are using lithium-ion battery, this setpoint MUST be the same as [[#topping charge voltage]] | A legacy setpoint for lead-acid battery. If you are using lithium-ion battery, this setpoint MUST be the same as [[#topping charge voltage]] | ||
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For lithium ion batteries, the PCS will stop charging the battery when the DC voltage reaches [[#topping charge voltage]], AND the DC current reduces to [[#end of charge current]] | For lithium ion batteries, the PCS will stop charging the battery when the DC voltage reaches [[#topping charge voltage]], AND the DC current reduces to [[#end of charge current]] | ||
- | ==== max. charge current (DC) ==== | + | ==== Max. charge current (DC) ==== |
The battery charging current (DC) will never be more than this threshold | The battery charging current (DC) will never be more than this threshold | ||
- | ==== max. discharge current (DC) ==== | + | ==== Max. discharge current (DC) ==== |
The battery discharging current (DC) will never be more than this threshold | The battery discharging current (DC) will never be more than this threshold | ||
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==== End of discharge voltage ==== | ==== End of discharge voltage ==== | ||
- | if the PCS is discharging, | + | If the PCS is discharging, |
==== Precharge voltage (legacy) ==== | ==== Precharge voltage (legacy) ==== | ||
A legacy setpoint for lead-acid battery. If you are using lithium-ion battery, ignore this option | A legacy setpoint for lead-acid battery. If you are using lithium-ion battery, ignore this option |