GE DMC490 Software Configuration Manual
  1. Manuals
  2. Brands
  3. GE Manuals
  4. Controller
  5. DMC490
  6. Software configuration manual
GE DMC490 Software Configuration Manual

GE DMC490 Software Configuration Manual

Microgrid controller
Hide thumbs
Table of Contents

Advertisement

Quick Links

GE
Grid Solutions
TM
DMC490
Microgrid Controller
Software Configuration Guide
SWM0091
Version 1.00, Revision 3
GE Information

Advertisement

Table of Contents
loading

Related Manuals for GE DMC490

Summary of Contents for GE DMC490

  • Page 1 Grid Solutions DMC490 Microgrid Controller Software Configuration Guide SWM0091 Version 1.00, Revision 3 GE Information...
  • Page 2 Even though the DMC490 includes a host firewall, it is recommended that an external network firewall be placed on the electronic security perimeter as an additional layer of protection.
  • Page 3 (SWM0091). The DMC490 employs sophisticated applications that contain many advanced features and capabilities. To successfully configure and operate the DMC490 for your environment, it is highly recommended that you work through this entire guide and the D400 Substation Gateway Software Configuration Guide (SWM0066 V5.2).
  • Page 4 Document Conventions This guide uses the Systeme International (SI) and the Microsoft Manual of Style as a basis ® for styles and conventions. The following typographic conventions are used throughout this manual. Bold face is used for: – Names of software program menus, editors, and dialog boxes; also for the names of menu commands, keyboard keys, icons and desktop shortcuts, and buttons and fields in editors and dialog boxes –...
  • Page 5 Contact Technical Support The GE Grid Solutions Technical Support is open 24 hours a day, seven days a week for you to talk directly to a GE representative. In the U.S. and Canada, call toll-free: 1 800 547 8629...

  • Page 7: Table Of Contents

    Application Overview ......................................8 Microgrid Overview......................................... 9 Microgrid Controller Setup ....................................16 Chapter 2 - DMC490 Configuration ................................. 17 DMC490 Operation Modes ....................................17 Configuration Overview ....................................18 Configure Electrical Assets ....................................20 Configure Thermal Assets ....................................34 Configure System Settings ....................................40 Chapter 3 - Health Status and Monitoring ............................

  • Page 8: Chapter 1 - Dmc490 Overview

    Chapter 1 - DMC490 Overview The DMC490 Microgrid Controller: • Controls and monitors a microgrid • Optimizes the dispatch of electrical generation, thermal generation, and energy storage to minimize operating cost Application Overview The Microgrid Controller optimizes the dispatch of electrical generation, thermal generation, and energy storage to minimize operating cost.

  • Page 9: Microgrid Overview

    DMC490 Overview Microgrid Overview The Microgrid Controller controls microgrid generation and storage assets to optimize operation for the lowest cost based on load and renewable forecasts. A microgrid is a distribution network that operates with local (distributed) generation or islanded (grid connection open).
  • Page 10 DMC490 Microgrid Controller Software Configuration Guide Where: is the mechanical torque provided by the prime mover is the electrical torque exerted by the loading of the power system is the inertia constant of the machine, and ω is the rotational speed.
  • Page 11 DMC490 Overview Figure 5 Isochronous operating characteristic An isochronous machine maintains a constant frequency for any value of power up to its maximum rating. Having more than one generator operating in isochronous control creates a challenge. Measurement error results in each machine having a slightly different idea of the actual system frequency, and each machine tries to bring this value to the nominal frequency.
  • Page 12 DMC490 Microgrid Controller Software Configuration Guide Figure 7 Droop control operating characteristic In grid-connected microgrids, the grid compensates for any imbalance between load and generation in the microgrid, behaving like an isochronous machine for the microgrid. However, for islanded microgrids, there is a...
  • Page 13 DMC490 Overview This is a parameter between 0 and 1, multiplied by the upper bound of renewable power generation unit, and decided by the operator based on meteorological observation data. Optimal Dispatch The primary function of the MGC is optimal dispatch, which is the process of allocating the required load demand among the available resources such that the cost of operation is minimized.
  • Page 14 DMC490 Microgrid Controller Software Configuration Guide Figure 10 Data flow for a system with dispatchables, renewables, and storage Setup tool Loads Operational Power consumed parameters (settings) Online status Power generated Renewable Online status DMC490 generators Availability Microgrid Controller System Power generated...
  • Page 15 DMC490 Overview Figure 12 Prediction horizon Different routines within the optimization framework are formulated and solved at each time step (for example, 12 minutes) over the prediction horizon (24 hours) based on load, renewable resources, and price forecasts. In this framework, a variety of operational considerations are factored in. These include and are not limited to the support of a hydro unit in isochronous mode, minimum up/down times required for storage charging, interaction with the grid, and support of manual-start dispatchable generators.

  • Page 16: Microgrid Controller Setup

    » To connect and configure a microgrid, perform the following tasks: Set up communication between Assets controller or Asset of the Microgrid to the DMC490 using Data Collection Application; see Chapter 17 - Configure IED/Device Blocks (Clients) of the SWM0066 D400 Software Configuration Guide.

  • Page 17: Chapter 2 - Dmc490 Configuration

    DMC490 Configuration You specify the number of dispatchable generators, loads, boilers for heat, renewable resources, and so on in the DMC490 Configuration Tools. Up to 32 resources can be connected in the microgrid, with maximum per device type as follows.

  • Page 18: Configuration Overview

    DMC490 Microgrid Controller Software Configuration Guide View and Switch Modes » To view the state of Optimizer Operation Mode: Navigate to the MGC application Point details page on the HMI: Point Summary > Applications > Microgrid Controller> Analog Input Use the Analog Input pseudo point MGC Current state from the MGC point summary page.
  • Page 19 DMC490 Configuration Result: The settings pane appears on the right-hand side; for example, Dispatchable Asset1. Configure the Electrical Assets and Thermal Assets Point settings. Refer to the Configure Electrical Assets section on page 20 for more details. Add digital/analog inputs and digital/analog outputs for the assets.

  • Page 20: Configure Electrical Assets

    Renewable resources of the same type that are co-located are considered one device. Point Settings Setting Description Range Default Asset ID Unique asset ID assigned by the DMC490 MGC. Name Specify the name of the asset. 4 to 20 Renewable characters Asset_...
  • Page 21 Configure each dispatchable resource with settings such as operating capacity, operating cost, and minimum operating period of an auto startup diesel generator. Point Settings Setting Description Range Default Asset ID Unique asset ID assigned by the DMC490 MGC. Name Specify the name of the asset. 4 to 20 Dispatch characters able Asset_...
  • Page 22 DMC490 Microgrid Controller Software Configuration Guide Enabled Specify if the asset is to be included in the microgrid optimization Disabled Enabled calculations. Enabled Rated Power Specify the maximum power generation capacity of the 0 to 250 kW (kW) dispatchable resource in kW.
  • Page 23 In this manner, if you select the second mode to be the active mode for the microgrid, then Hydro 1 can run in isochronous mode by receiving the isochronous command from DMC490. For the other microgrid operation modes, Hydro 1 is in non- isochronous mode (as set by zero values).
  • Page 24 Enabled included in the microgrid optimization calculations by the Enabled DMC490. When storage input is offline and the optimal dispatch result indicates storage input usage above the minimum storage input for equal to or longer than the Charging Minimum Up Time, then the storage input is started.
  • Page 25 Disabled Enabled be included in the microgrid optimization calculations by the Enabled DMC490. For hydrogen storage, which is interpreted as the combination of electrolyzer, high-pressure storage cylinders, and fuel cell, enabling the output translates to enabling the fuel cell. Storage Type...
  • Page 26 (cycling) of storage devices. These undesired outcomes (that is, infeasibility and cycling) are avoided in the DMC490 MGC by having some pre and post processing units outside of the optimization core to modify the commands issued by the controller, such as storage stop/start, or to change some input readings, such as SOC.
  • Page 27 DMC490 Configuration Constraint Soft constraint means that the storage device is allowed to Hard Hard violate its minimum capacity State Of Charge Minimum but at Mode Soft the cost of a penalty in the objective function. Having the possibility of going below the minimum capacity (soft...
  • Page 28 The cost is in dollars; for other currencies simply enter that value and be consistent in all fields involving the currency. Hysteresis The DMC490 MGC supports input up-time, down-time, and cycle-per-day hysteresis. When Hysteresis is On, a set of appropriate parameters is in place to prevent excessive switching and cycling.
  • Page 29 Feedback maximum value of discharging power for the DMC490 MGC to True read. No means that the value read by the DMC490 MGC is disregarded. For storage devices we have maximum charging power and maximum discharging power; these are settings and fixed values.
  • Page 30 DMC490. When the Charging Limit Feedback is set to No, then the value read by the DMC490 is disregarded. Used by Unit Select yes to have storage contribution considered in the Unit...
  • Page 31 DMC490 Configuration Status Points The following field mappings apply to the status and read only inputs that are to be mapped to the Microgrid controller > Storage Asset configuration page: • Input Online: This field indicates if the storage input is online or offline. For hydrogen storage, which is interpreted as the combination of electrolyzer, high-pressure storage cylinders, and fuel cell, Input Online represents the offline/online status of the electrolyzer.
  • Page 32 Point Settings Setting Description Range Default Asset ID Unique asset ID assigned by the DMC490 MGC. Name Specify the name of the asset. 4 to 20 characters Load Asset_ Enabled Specify if the asset is to be included in the microgrid...
  • Page 33 Configure each grid, such as the amount of power to import. Point Settings Setting Description Range Default Asset ID Unique asset ID assigned by the DMC490 MGC. 4 to 20 Grid Name Specify the name of the asset. characters Asset_...

  • Page 34: Configure Thermal Assets

    DMC490 allows partitioning of the load requirement (kW) into discrete values. That is, the DMC490 allows the grid to supply a combination of a finite set of power values. This is useful because the DMC490 typically has several power sources in the microgrid with which to optimize, including any grid.
  • Page 35 DMC490 Configuration Electric Specify the maximum electric power generation capacity of the co- 0 to Rated Power generator in kW. It is the maximum potential power contribution of 1,000,000 (kW) the co-generator in the microgrid. Electric Specify the preferred minimum electric power in kW that the co-...
  • Page 36 In this manner, if you select the third mode to be the active mode for the microgrid, then Co-generator 1 can run in isochronous mode by receiving the isochronous command from DMC490. For the other microgrid operation modes, Co-generator 1 is in non- isochronous mode (as set by zero values).
  • Page 37 Boiler Asset Point Settings Setting Description Range Default Asset ID Unique asset ID assigned by the DMC490 MGC. Name Specify the name of the asset. Boiler Asset_ Specify if the asset is to be included in the microgrid optimization Enabled...
  • Page 38 DMC490 Microgrid Controller Software Configuration Guide Fuel Cost ($/Nm3) Specify the cost of fuel that operates the boiler, in dollars per 0 to 1,000 0.35 normal cubic meter (Nm3). $/Nm3 $/Nm3 For example, enter the price of the natural gas.
  • Page 39 Heat Load Asset Point Settings Setting Description Range Default Asset ID Unique asset ID assigned by the DMC490 MGC. Name Specify the name of the asset. Heat Load Asset_ Enabled Specify if the asset is to be included in the microgrid Disabled Enabled optimization calculations.

  • Page 40: Configure System Settings

    DMC490 Microgrid Controller Software Configuration Guide Configure System Settings System Settings are used to configure isochronous or droop control. » To configure System Settings: Navigate to Configuration > MGC > Settings > • System Settings • Boiler asset • Heat Load asset...
  • Page 41 DMC490 Configuration 1. Dispatchable isochronous load share (default) Isochronous Margin Minus4 2. Renewable in isochronous 3. Single dispatch in isochronous (CHP) 4. Grid in isochronous For example, due to the highly variable nature of solar and wind power, a larger margin can be entered than for a hydro or CHP installation.
  • Page 42 For each renewable, grid, load, and heat load forecasts, there are 240 registers available in the DMC490 MGC and up to 48 hours are possible as the Prediction Horizon. The Dispatch Time needs to be set in conjunction with the Prediction Horizon so that the number of forecast values is not more than 240.
  • Page 43 This setting is the optimization time resolution. It specifies the 6 minutes 6 minutes (Minutes) frequency at which the DMC490 generates a data file based 12 minutes on the collected information from the microgrid, solves the 18 minutes optimization problem, and update commands for the 24 minutes resources in the microgrid.
  • Page 44 DMC490 Microgrid Controller Software Configuration Guide Minimum Delay This setting is the minimum delay between last starting 10, 20, 30, 10 seconds Between Last Start and the first stopping of dispatchable units. 40, 50, 60 Up and First Shut seconds...

  • Page 45: Chapter 3 - Health Status And Monitoring

    Health Status and Monitoring Chapter 3 - Health Status and Monitoring The MGC application provides health status information in the form of Pseudo points in the Point Summary of MGC table. Navigate to this table in the D400 HMI at: Point Summary > Applications > Microgrid Controller. The following table lists the Point Summary of MGC status points and their descriptions.

  • Page 46: Chapter 4 - Forecasts

    For example, if the Resolution is 120 minutes, and the present time when forecast values are sent to the DMC490 is 06:00, enter 360 minutes to display the time labels as 06:00, 08:00, 10:00, and so on. If you change this value, the DMC490 interpolates the forecasted data the first time to fill the time gap created by the offset.

  • Page 47: Forecasts For Renewables

    0 and 1. When no Renewable Capability forecast is provided by the user, a default value of 1 is used by the DMC490. Forecast – Internal flag Specify if the forecast calculated by the DMC490 (internal) or another forecast is to be used (external). There are two options available for updating the renewable forecast information: •...

  • Page 48: Forecasts For Grid Buy Price

    DMC490 Microgrid Controller Software Configuration Guide Forecasts for Grid Buy Price This panel allows you to provide grid buy price forecasts in $/kWh. If you select one of the importing or exporting options, there is no limitation and the unit is enable to either import or export over the prediction horizon based on your setting.
  • Page 49 • The first Analog Output point value is considered as the Forecasted Load for the hour at which the DMC490 clock is running. • Likewise the MGC issues values for the remaining 23 Analog Output points (for the remaining 23 hours)
  • Page 50 Added map instruction (step 11) to the Chapter 2 > Configuration Overview > Microgrid Assets > Configure and map microgrid assets procedure. Aug 12, 2016 Added subsection: Using SGConfig to Configure the DMC490 to the Overview chapter. Aug 19, 2016...

Table of Contents