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Controls > Local controls > Flashcards

Local controls Flashcards

1
Q

How do you define a local control for AC block?

A

local controller provides control and protection for pairing of PCS with battery pack. The PCS may have sub PCS within itself controlled by PCS controller. One local control device per power dispatch interface.

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2
Q

Various states for LC

A

Ready, Starting, Running (PQ), Stopping, Faulted, Standby, Running (VF), Running (DC current command), Comm Loss, Unkown

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3
Q

Various operational modes

A

Manual, Auto, Maintenance

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4
Q

Describe Start state

A

Transition unit from ready state to standby or running

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5
Q

Describe Stop state

A

Transition unit from running/standby to stopped/ready state

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6
Q

Describe Reset state

A

Rest all fault and alarms

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7
Q

Describe Running state

A

send manual active or reactive power dispatch commands

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8
Q

LC manual mode

A

Transition LC to manual mode

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9
Q

Descriibe Auto mode

A

Transition unit to auto mode

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10
Q

Describe maintainence mode

A

Transition LC to maintenance mode

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11
Q

Describe starting battery - troubleshooting

A

Transition battery only from stopped state to running state

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12
Q

Describe stop battery state - troubleshooting

A

Transition battery system only from running state to stop state

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13
Q

Describe pre-charge state - troubleshooting

A

Start battery pre-charge routine

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14
Q

Reset battery system - troubleshooting

A

clear all fault and alarms in BMS

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15
Q

Start, stop, reset, and initialize PCS states

A

only for troubleshooting

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16
Q

List of LC faults

A
  • Global Fault
  • EStop Active
  • DC Pre-Charge Fault
  • Not Applicable
  • Remote WD Fault`
  • Startup Fault
  • DC SPD
  • DC Fuse
  • WD Fault
  • Battery WD Fault
  • Battery Fault
  • PCS Fault
  • Ground Fault
  • Not Applicable
  • Auto-Restart Fault
17
Q

List of System Faults?

A
  • Global Alarm
  • Battery Rack Down
  • BMS Warning
  • Li SOC Limit - Indicator that SOC limit hit; means power command may not be met as maintaining SOC is higher priority. This is indicator only, and may in many applications be an expected run condition.
  • ES Command Error -* Energy Scheduling command error. When active, power is curtailed to zero. Energy Schedule commands must be set for correct polarity*
  • ES Command OoB - *A scheduled Energy Schedule mode command (power or SOC command for at least one of the 96 entries) is out of bounds; see Energy Schedule holding register command definition for min/max bounds *
  • System Run Log Fail
  • Override Active - A test mode or factory override is active
18
Q

List of LC alarms?

A
  • PCS WD On
  • Remote WD On
  • IC Ready
  • PCS Ready
  • Battery Ready
  • Local/Remote
  • Auto-Restart Status
  • USB Exist
  • Energy Scheduling Mode Enable
  • Energy Scheduling Mode Active - Direct P/Q command, Schedule mode - direct SOC limits and power commands pulled from schedule
  • Log Status
  • DC Disconnect Aux closed
  • Battery Control Power Relay closed
  • Initializing or Off
  • IC Fault Active
  • Waiting For DC Disconnect to be closed
  • Waiting PCS Ready
  • Waiting Lithium Battery Ready
  • Ready to Start
  • Starting
  • Running PQ
  • Running UF
  • Standby or Reconnection Timer
  • Auto-Restart In Process
  • Black-Start Ready
19
Q

System battery limits?

A

IdcMax discharge current
IdcMin charge current
VdcMax charge voltage
VdcMin discharge voltage

20
Q

PQ/VF mode?

A

CPS
408012 Pcmd Active power command 0.1 kW INT16
408013 Qcmd Reactive power command 0.1 kVAR INT16
408014 OutVadj Output voltage adjustment (UF mode) 0.1 V INT16
408015 OutFadj Output frequency adjustment (UF mode) 0.01 Hz INT16

21
Q

Control command
PCS command?

A

408010 Ctrl_Cmd Control Command Register
0 No Change
2 Reset
4 Start
8 Stop
408011 PCS Mode, Value:
1.IDLE
3: PQ (Grid Connected)
4: UF (Standalone)

22
Q

CATL MBMU summary signal?

A

301000-301053 MBMU Summary MBMU: Warning, Status, and Summary Data 0x0000 HEx 0 Dec

23
Q

BMS to PCS signal?

A

301768-301786 MBMU to PCS MBMU: BMS To PCS Data 0x0300hex 768dec

Controls (2 decks)

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