hmi:settings

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision 		Previous revision
hmi:settings [2019/07/01 21:09]
admin [float charge voltage] 		hmi:settings [2020/09/16 21:42] (current)
Line 16: Line 16:
   * DC dispatch   * DC dispatch
  
-refer to [[how_to:dc_dispatch_and_ac_dispatch|DC dispatch and AC dispatch]] for more information+Refer to [[how_to:dc_dispatch_and_ac_dispatch|DC dispatch and AC dispatch]] for more information
  
 In most applications, select **AC dispatch**. In most applications, select **AC dispatch**.
Line 27: Line 27:
  
 ==== 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\\  - the reactive power will be designated by [[#reactive power setpoint]] directly   * Constant reactive power\\  - the reactive power will be designated by [[#reactive power setpoint]] directly
   * 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]]
Line 42: Line 42:
  
  
-====Advanced function -  Normal ramp rate (RR) ====+====Smart Inverter function  -  Normal ramp rate (RR) ====
 If [[#Power change mode]] is set to **ramp**, in normal operation, the power setpoint changes, the actual import/export power will slowly change with this slope setpoint. If [[#Power change mode]] is set to **ramp**, in normal operation, the power setpoint changes, the actual import/export power will slowly change with this slope setpoint.
  
-====Advanced function -  Soft-Start ramp rate (SS) ==== +====Smart Inverter function  -  Soft-Start ramp rate (SS) ==== 
-Upon starting to inject power into the grid, following a period of inactivity or a disconnection, the +AKA Connect/Reconnect Ramp-up rate 
-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, the inverter will be able to control its rate of increase of power from 1 to 100% maximum current per second. 
-==== Advanced function - Grid reconnect delay ==== +==== Smart Inverter function - Grid reconnect delay ==== 
 +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\\  - the active power will be designated by the [[#active power setpoint]] directly   * Constant active power\\  - the active power will be designated by the [[#active power setpoint]] directly
   * Freq-Watt\\  - the active power will be designated by the [[#active power setpoint]] when frequency is in normal range, once the frequency rises beyond the range, the active power will reduce with the Freq-Watt slope    * Freq-Watt\\  - the active power will be designated by the [[#active power setpoint]] when frequency is in normal range, once the frequency rises beyond the range, the active power will reduce with the Freq-Watt slope 
Line 62: Line 63:
 ==== Power change mode ==== ==== Power change mode ====
 there are 2 modes there are 2 modes
-  * Step\\ - the power will change instantly when setpoint is changed +  * Step\\ - the power will change instantly when setpoint is changed, suitable for applications such as frequency regulation 
-  * Ramp\\ - the power will change linearly with the [[#normal ramp rate]] when setpoint is changed+  * Ramp\\ - the power will change linearly with the [[#normal ramp rate]] when setpoint is changed.
  
  
-====Advanced function - F/VRT ==== +====Smart Inverter function  - F/VRT ==== 
-F/VRT (Frequency Ride-through and Voltage Ride-through)  +Disable or enable F/VRT (Frequency Ride-through and Voltage Ride-through)  functions 
-Enabling +====Smart Inverter function  -  Anti-islanding====
-====Advanced function -  Anti-islanding====+
 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 ====
 There are 2 options There are 2 options
   * Step\\ - the PCS will generate the AC voltage instantly when it's started   * Step\\ - the PCS will generate the AC voltage instantly when it's started
-  * Soft-Start\\ -  when it's started, the PCS will close AC relays, and then generate the AC voltage slowly, to avoid potential inrush current+  * Soft-Start\\ -  when it's started, the PCS will close AC relays, and then generate the AC voltage slowly, to avoid potential inrush current. If the PCS trips after off-grid starting, worth a try on this option.
  
  
Line 93: Line 93:
 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/export the power at DC side, according to this setpoint The PCS will import/export the power at DC side, according to this setpoint
 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/export the power at DC side, according to this setpoint The PCS will import/export the power at DC side, according to this setpoint
 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]] 
  
 ==== Topping charge voltage ==== ==== Topping charge voltage ====
 refer to this article  refer to this article 
-==== max. charge current (DC) ====+[[definition:battery_dis-_charge_sequence]] 
 + 
 +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) ====
 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
  
Line 120: Line 123:
  
 ==== End of discharge voltage ==== ==== End of discharge voltage ====
-if the PCS is discharging, once the voltage reaches this criteria, the PCS will stop and refuse to discharge. +If the PCS is discharging, once the voltage reaches this criteria, the PCS will stop and refuse to discharge. 
-==== Precharge voltage ====+==== 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
-==== Precharge time====+==== Precharge time (legacy)====
 Another legacy setpoint for lead-acid battery. If you are using lithium-ion battery, ignore this option  Another legacy setpoint for lead-acid battery. If you are using lithium-ion battery, ignore this option 
 +
 ==== End of charge current ==== ==== End of charge current ====
-When the battery is charged nearly full, the current will reduce. Once the current drops to this threshold, the PCS will stop charging the battery. +When the battery is charged as the voltage is almost reaching [[#topping charge voltage]], the current will reduce. Once the current drops to this threshold, the PCS will stop charging the battery. 
  
 ===== Updating ===== ===== Updating =====
  • hmi/settings.1562029784.txt.gz
  • Last modified: 2020/09/16 20:58
  • (external edit)