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CE+T Power STABILITI 30C3-CE Quick Start Manual

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STABILITI 30C3-CE
Quick Start Guide V1.0
S
P
C
mart
ower
onverSion for the
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(aC/DC/DC) C
ultiPort
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ntegrateS
olar anD
Simplifies system installation, maintenance and control
•
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uPPortS
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ange of
AC Microgrids
DC Microgrids
Peak Shaving and Energy Arbitrage
Electric Vehicle Support Equipment "EVSE"
•
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roviDeS
alvaniC
Solation
Extends Battery Life
Enhances Safety
Copyright © 2023. Construction electroniques & telecommunications S.A.
All rights reserved. The contents in document are subject to change without notice.
The products presented are protected by several international patents and trademarks.
Address: CE+T S.a, Rue du Charbonnage 12, B 4020 Wandre, Belgium
www.cet-power.com - info@cet-power.com
Contact us:  www.cet-power.com
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Follow us on social media:
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Summary of Contents for CE+T Power STABILITI 30C3-CE

  • Page 1 STABILITI 30C3-CE Quick Start Guide V1.0 mart ower onverSion for the nergy evolution • (aC/DC/DC) C ultiPort onverter • ntegrateS olar anD torage in omPaCt nCloSure Simplifies system installation, maintenance and control • uPPortS ange of nergy anagement PPliCationS AC Microgrids...
  • Page 2 ©Copyright 2023, CE+T. All rights reserved. No parts of this document may be reproduced in any form without the express written permission of CE+T. CE+T, and the CE+T Power logo are trademarks of CE+T Power. All other trademarks and service marks belong to their respective owners.

  • Page 3: Table Of Contents

    4. Introduction ............................Purpose, Scope, and Audience ..................... Important Notes Before Starting the PCS ..................5. System Specifications ..........................Stabiliti 30C3-CE Multiport ......................6. PCS Installation ............................Unpacking and Inspecting the PCS ....................Mounting the PCS ........................7. Low Voltage Comms and Control Wiring ....................
  • Page 4 9.7.7 States and Status ......................Fault Management & Watchdog Timer ..................10. Power Flow Control Methods ........................10.1 AC1 Available Control Methods ....................10.2 DC2/DC3 Available Control Methods .................... 10.3 Automatic Mode and Manual Mode ..................... 10.4 Control Method Uses and Restrictions ..................10.4.1 IDLE Control Method (0x0000) ..................

  • Page 5: Introduction To Ce+T

    Introduction to CE+T 1. Introduction to CE+T CE+T Power designs, manufactures, and markets a range of products for industrial operators, with mission critical applications, who are not satisfied with existing AC backup system performances and related maintenance costs. Our product is an innovative AC backup solution that unlike most UPS’s available.

  • Page 6: Glossary Of Terms

    2. Glossary of Terms Acronym or Term Full Expression American Wire Gauge California Energy Commission Central Processing Unit Converter CE+T Power Converter: Stabiliti 30C, Stabiliti 30C3 Canadian Standards Association Digital Multi-Meter Field Replaceable Unit GFDI Ground Fault Detection Current Insulation Fault Measurement...

  • Page 7: References

    • Stabiliti 30C3-CE 30kW Installation and Operations Manual • Application Note 504: Rapid Backup Power Solution Guide with Stabiliti PCS • Application Note 102: Stabiliti 30C3-CE Grid Interconnection and Transformer Design Requirements • Application Note for Islanding modes with Stabiliti •...

  • Page 8: Introduction

    4. Introduction 4.1 Purpose, Scope, and Audience This Quick Start Guide describes the features and capabilities of the Stabiliti 30C3-CE Multiport Power Conversion System (PCS or Converter). It should be used in conjunction with other product documentation provided by CE+T Power (“CE+T”), which are referenced throughout this Quick Start Guide.

  • Page 9: System Specifications

    Their highly flexible operating modes are managed via Modbus TCP over an Ethernet network connection. Modbus RTU is also supported. 5.1 Stabiliti 30C3-CE Multiport The 30C3-CE PCS uses PPSA to efficiently transfer and manage power flows among three power ports: AC1, DC2 and DC3.

  • Page 10: Pcs Installation

    The Stabiliti is pallet shipped and is enclosed in a purpose-built heavy-duty cardboard box. Once unpacked, inspect the PCS for any obvious shipping damage. Immediately contact your shipper and CE+T Power regarding any damage noted. You may also save the box with foam in the event it is needed to transport the converter.

  • Page 11: Low Voltage Comms And Control Wiring

    In all Stabiliti 30C3-CE applications, an outside system controller is required to configure, control, and monitor the PCS in real time via the Modbus TCP interface. These energy storage systems may also utilize other low-voltage interfaces shown in Figure 1.

  • Page 12: Low-Voltage Interface Overview

    Low Voltage Comms and Control Wiring 7.2 Low-Voltage Interface Overview Please take care of the actual position of Pin1 for these connectors. #1 – ISO AUX 24V OUT This 2-Pin terminal block connector provides an isolated +24V supply for various +24 Vdc usage that might be required in the direct vicinity of the Stabiliti.
  • Page 13 Low Voltage Comms and Control Wiring #4 – AUX 24V IN / RUN 4-Pin terminal block connector that connects to the control power supply and enables signals. For normal PCS operation, the EN input must be supplied with a 24 Vdc supply. This input is floating and is typically used to be paralleled with similar inputs of other Stabiliti, supplied by a system 24 Vdc through a chain of external alarm NC contacts (system emergency HALT, fire alarm, intrusion, ….).
  • Page 14 5-Pin terminal block connector. This connector provides the RS485 interface of the Stabiliti that is used to support the Modbus RTU Stabiliti protocol. RS-485 serial communication is a legacy format in the inverter industry, and CE+T Power offers this interface support for backwards compatibility. CE+T highly recommend that operators employ Ethernet TCP communications for enhanced reliability, speed and functionality.
  • Page 15 • FTP at port 21 • Telnet at port 23 CE+T Power strongly recommends incorporating TCP-based communications into your Energy Storage System (ESS). Note that most ESS will involve remote communications for system operations and monitoring, where these remote communications are also typically based on a TCP architecture .
  • Page 16 Low Voltage Comms and Control Wiring updates. Telnet is only used by trained CE+T Power Technicians for in-depth diagnoses. When configuring firewall permissions, please make accommodations for TCP data transfer on the four (4) ports noted above. Refer to section 9, page 21 of this document for more information on TCP Ethernet communications.

  • Page 17: High-Voltage Wiring

    High-voltage Wiring 8. High-voltage Wiring During the initial setup of the PCS and before connecting AC and DC power sources, it is recommended that the user first operate the PCS with only the Aux 24 Vdc power supply connected. Doing so enables validation of communications and access to the Modbus control interface and the various configuration, control, and monitoring features supported by the Stabiliti Series PCS and detailed later in this document.

  • Page 18: Ac External Circuit Protection And Disconnect

    High-voltage Wiring For service voltages other than 480 Vac, a transformer will be necessary. Please refer to CE+T Power Application Note 102: Stabiliti 30C3-CE Grid Interconnection and Transformer Design Requirements. Contact CE+T Power regarding any questions you may have regarding available AC voltage and frequency options.

  • Page 19: Dc2/Dc3 Connect Board

    High-voltage Wiring 8.3 DC2/DC3 Connect Board Figure 4: 30C3-CE DC2 and DC3 Connect Board 8.3.1 DC Grounding The battery and PV array connections share a common negative connection via DC COM. They are not electrically isolated from each other. In the factory default configuration, this common negative DC connection is grounded within the PCS via a 1 A fuse.

  • Page 20: Pv Wiring

    The 30C3-CE must be installed with external fused circuit protection on their DC power ports. Refer to Figure 5. A 1000 Vdc rated, 75 A fused PV Disconnect with PV-type fuses is recommended for this purpose on both ports. However, CE+T Power recommends that you confirm specific DC disconnect and safety requirements with your local Authority Having Jurisdiction (“AHJ”).

  • Page 21: Communications And Modbus Interface

    If there is no wired Ethernet connection present the display will indicate “No Link”. To establish initial communication with the PCS CE+T Power recommends the following procedure via a Windows laptop: 1. Locate the Network Connections Adapter Options window via the control panel.

  • Page 22: Modbus Protocol Parameters

    250 Modbus registers available to the system operator. All converters shipped from CE+T Power have AC1, DC2, and DC3 set to the IDLE Control Method (ports asleep) for safety purposes. They cannot transfer power until configured and/or commanded to do so via the Modbus interface.

  • Page 23: Scaling Factors

    Communications and Modbus Interface Register Address Name Register Name Type Default Default Value DC2 max voltage p2_v_pn_max_limit int16 R/W 1050 1050 Vdc DC2 min voltage p2_v_pn_min_limit int16 R/W -50V Vdc DC2 max current p2_current_limit int16 R/W 62 Adc DC3 max voltage p3_v_pn_max_limit int16 R/W 1050...

  • Page 24: Power Flow Sign Convention

    Communications and Modbus Interface Type Scaling Factor Register Read/Write Actual Value DC Port Power 1 unit = 10 W 1300 13000 W AC Port Real Power 1 unit = 10 W 1400 14000 W AC Port Reactive Power 1 unit = 10 var 7000 var DC Port Current Ramp Rate 1 unit = 0.1 A per second...

  • Page 25: Port Dc2

    Communications and Modbus Interface Register Address Register Name Type Default Comments If p1_control_method = 0x502: line- p1_voltage_setpt int16 RW to-line voltage setpoint for voltage- (480 V) forming mode, otherwise unused. If p1_control_method = 0x502: p1_frequency_ 60000 int16 RW output frequency setpoint for voltage- setpt (60 Hz) forming mode, otherwise unused.
  • Page 26 Communications and Modbus Interface Register Address Register Name Type Default Comments If p2_control_method = 0x0501: p2_voltage_setpt int16 R/W DC Voltage set point. Adjust voltage droop at reg 157. p2_mppt_restart_ Timeout for validating start/stop uint16 R/W setpt conditions in seconds p2_mppt_minv_ uint16 RW Low voltage MPPT stop voltage stop_setpt...

  • Page 27: Port Dc3

    Communications and Modbus Interface 9.7.3 Port DC3 As DC2 is mainly devoted to battery handling, PV are preferably connected to DC3, despite exactly the same functionality being present on DC2 to perform the same. So the focus on PV handling is only present here. Register Address Register Name Type...

  • Page 28: Grid Control

    Communications and Modbus Interface Register Address Register Name Type Default Comments DC3 port fault status. See State & 1007 p3_fault_status uint16 RO Status for fault definitions. Table 6: DC3 basic Modbus registers, as used for a PV array 9.7.4 Grid control The following registers are used to handle the grid connection parameters.

  • Page 29: System

    Communications and Modbus Interface The GRID_CONNECT_IO Power cease functionality is disabled in the device default settings but forced to be set in the Grid definition file if required for a particular Grid Regulation. 9.7.5 System The following registers are used to handle and monitor the global behaviour of the converter. Register Address Register Name Type...

  • Page 30: States And Status

    Communications and Modbus Interface Register Address Register Name Type Default Comments Grid_Interactive_ uint16 RO CRC of FPGA grid interactive module Module_CRCh Grid_Interactive_ uint16 RO CRC of FPGA grid interactive module Module_CRCl 1=Reset 2000 Command uint16 RW 3=Save (Reg <2000) 7=Save Settings (Reg >2000) PCS serial number: 8 registers 2001-2008 Serial_Number...
  • Page 31 Communications and Modbus Interface The following table provides the various faults notified in p1..3_state . Register Value Fault Comments Port does not operate because it is not configured or because the STANDBY PCS is not running. Port does not operate following a lockdown level fault. The only LOCKDOWN way to restart the port is to restart the PCS.

  • Page 32: Fault Management & Watchdog Timer

    Communications and Modbus Interface 9.8 Fault Management & Watchdog Timer CE+T strongly recommends that the operator familiarize themselves with the Fault Management sub-system on the Application Note 303: Fault Monitoring & Management with Stabiliti Series PCS, particularly the PCS by reading automatic reconnect feature of Automatic Mode.

  • Page 33: Power Flow Control Methods

    Power Flow Control Methods 10. Power Flow Control Methods There are numerous and flexible means to transfer power between PCS power ports using the Modbus interface that are collectively known as “Control Methods” for power flow. These include MPPT, Grid Power (GPWR), Facility Power (FPWR), DC Power (POWER), DC Current (CURRENT), NET, and IDLE.

  • Page 34: Control Method Uses And Restrictions

    Power Flow Control Methods configured. Power flow is stopped either when a fault occurs or by writing a 1 to the user_stop register 264. Manual Mode is intended for a human operator in a laboratory or field service situation. In Automatic Mode, power flow is activated as soon as a good set of Control Methods are written.

  • Page 35: Mppt Control Method (0X0002)

    Power Flow Control Methods 10.4.6 MPPT Control Method (0x0002) The Maximum Power Point Tracking Control Method (MPPT) is used only when a PV array is connected to DC3 (or DC2) to export the maximum available output of the array. This Control Method is paired with PV start and stop time configuration registers to enable operation on a time basis or a minimum voltage configuration register to enable operation on that basis.

  • Page 36: Initial Startup And Basic Commissioning

    Initial Startup and Basic Commissioning 11. Initial Startup and Basic Commissioning CE+T Power recommends the following set of initial commissioning tasks to validate your installation and PCS functionality before attempting to fully exercise the system. Before energizing the grid, battery or PV connections to the PCS: •...

  • Page 37: Power Flow Scenarios

    Power Flow Scenarios 12. Power Flow Scenarios The Stabiliti Series PCS has numerous options with regards to system configuration and power transfer options. Reviewing the following use cases will demonstrate the flexibility and capabilities of the 30C3-CE Multiport PCS. Note that only Manual Mode is employed in these examples, assuming lab operation by the user.

  • Page 38: Stand-Alone Solar Pv Export On Dc3

    Power Flow Scenarios c. Write R275 precharge_control = 1 to enable the pre-charge circuit. d. Monitor DC2 voltage via R173 p2_v_pn until it is in the range of your battery and within the pre-charge limits set above. e. Close external battery contactors or DC disconnect switch to connect the battery and PCS buses with minimal DC voltage difference and minimal current inrush.

  • Page 39: Pv + Battery Sum For Grid Export: Battery On Dc2, Pv Array On Dc3

    Power Flow Scenarios 3. Enable power conversion. a. Write R263 user_start = 1 to enable power transfer. The internal PPSA conversion link will begin operation, and PV export to the grid will ramp up to the maximum power point of the array. b.

  • Page 40: Battery Charging From Pv And/Or Grid: Battery On Dc2, Pv Array On Dc3

    Power Flow Scenarios i. R119 p1_real_power ii. R185 p2_power iii. R249 p3_power iv. R1001 pcs_fault_status (holdoff if PV too low) d. As with other set points and other Control Methods R68 p1_real_pwr_setpt may be changed on-the-fly based on battery or site application requirements. e.

  • Page 41: Ac Standalone Battery-Supported Microgrid

    Power Flow Scenarios 12.6 AC Standalone Battery-Supported Microgrid This is an example of a battery supplying power as demanded in real time to support and hold an AC microgrid output at 480 Vac, despite variations in load. 1. After physically installing the PCS as described earlier in this document disconnect and isolate the PCS from the 480 Vac grid supply.

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