Digpro Electricity

Electricity

Power

dpPower offers an integrated, highly scalable, and robust enterprise software solution for complete network lifecycle management of your electrical network. By enabling management and visualization of grid-connected assets – detailed and located on purpose-built, geospatial network maps – it improves situational awareness and supports your key business processes. This includes enhanced analysis, network design and planning, operations, maintenance, field crew assignments, and much more.

Network Planning Module

The Network Planning Module provides engineers and other utility experts engaged in planning with the tools needed to ensure an efficient design process and optimum design outcome.

The workflow management system minimizes administrative effort and ensures adherence to process rules. The system supports all common distribution network planning activities, including new design, replacement, relocation, and new customer connections. Internal workflow and approval processes are organized in projects and tasks shared between different stakeholders and departments. Templates exist for these processes, but you have the ability to customize the workflow to your organization’s structure and business processes, including configurable tools to manage internal approvals.

The dpPower Network Planning Module supports network planners with tools to quickly and accurately perform an analysis on newly designed networks of any voltage level – high, medium, or low.

Those tools include:

 

  • Load Flow with Fault Calculation (balanced): Features for balanced load-flow calculations with or without load calibration. Network states evaluated include: complex voltages, currents, flows of real and reactive power, voltage drops, losses, short currents, and others.

 

  • Load Flow with Fault Calculation (un-balanced): The same features as above but used in unbalanced network with single-phase loads, SWER networks, or street-lighting networks. This type of calculation is also used to estimate consequences of unbalanced loads in the network.

 

  • Fault Calculation: Supports tripping time calculations for fuses and relays. For medium voltage network analysis, supports calculations of three-phase short circuit current, two-phase short circuit current, single-phase fault current and voltage setting of earthed equipment, and two-phase-to-earth short circuit current. For medium voltage networks, supports calculation of three-phase short current and phase-to-neutral-conductor short circuit current.

 

  • Protection Analysis: Short circuit capacity, detection, and protection selectivity analysis performed with the fault calculation.

 

  • Capacitor Optimization: Calculates and presents optimal placement for capacitors, considering capacitor costs and losses.

 

  • Load Curve and Load-Profile Generation: Supports generation of statistical load curves and/or profiles for each meter or group of meters. Load profiles can be generated based on meter measurements (readings) originated in the MDM system. The resulting load curve will vary according to customer type (ISIC code), temperature set, holiday season, and day type.

 

  • Predictive Load Flow: When necessary to obtain load flow analysis in varying system conditions, such as fluctuations in distributed energy participation or loads, the analysis can be extended over a longer time horizon. This provides a predictive estimations of grid state, including daily or weekly voltage, current, and power flow profiles to support design decisions.

 

Network Operations Module

It greatly simplifies system maintenance by eliminating the need to build, maintain, and synchronize multiple data models. When integrated to a SCADA system, the single dynamic distribution model means that dpPower always accesses the as-operated state of the distribution network, with the current location and state of switching devices, capacitor banks, and customer loads.

Two main components of the Network Operation module are the Distribution Management System (DMS) and the Outage Management System (OMS).

 

A continuous electrical topology processing of the network based on real-time operating conditions. The actual network connectivity state is based on the as-built network connectivity mode, combined with the statuses of the network switching devices. Dynamic network coloring of energized, deenergized, and earthed (grounded) elements of the network is available.

  • Network connectivity and topology analysis: A continuous electrical topology processing of the network based on real-time operating conditions. The actual network connectivity state is based on the as-built network connectivity mode, combined with the statuses of the network switching devices. Dynamic network coloring of energized, deenergized, and earthed (grounded) elements of the network is available.

 

  • Real-time network analysis: with balanced and unbalanced Load flow and fault analysis calculations, load calibration

 

  • Real-time network optimization: * Decision-support algorithm to perform loss minimization or feeder (load) balancing. Optimization outputs provide recommendations for network reconfigurations to minimize power and energy losses at normal operation, or by redistributing feeder loads (load balancing).

 

  • Fault location, isolation and supply restoration (FLISR): Tools that detect the location of faults, isolates them, and restores power to de-energized customers. It calculates probable fault locations by analyzing the fault pattern and available real-time information acquired from field devices, including, fault-indicator outputs*. FLISR can be used in manual or semi-automatic mode.

 

  • Trouble, error call, and AMI status processing: Records trouble calls and smart meter events, maintaining a real-time image of the currently active calls, smart meter events, and callbacks. Based on the time sequence and identified location of trouble calls and/or meter events, the outage location prediction engine estimates the most-probable location of the involved disconnecting device or outage location.

 

  • Outage management: Supports resolution of unplanned and planned outages. Core functions include the outage location prediction engine, switch order planning and execution, customer announcements (call-ahead and call back lists), and field crew communication and dispatch.

 

  • Switch order management: Provide tools for managing manipulations of various elements of a power system. The framework includes a wide set of functionalities used for creation, planning, display, modification, maintenance, validation, and execution of switching actions.

 

  • Online outage reports & analysis: Calculates outage reliability indices such as SAIDI, SAIFI, CAIDI, and CAIFI.

Network Maintenance

It can also minimize outage costs, but to do so must encompass factors that include system security, reliability, availability, and manpower utilization.The dpPower Maintenance Module helps organizations digitize and manage their maintenance and inspection work. Digitalization includes all major steps in a process, starting from maintenance and inspection planning, defining protocols and maintenance activities, creating inspection routes and condition monitoring rounds, and executing inspection rounds.

Centralizing the digitized data ensures accurate analysis that enables faster, more-accurate, and more-effective decision making.

 

The dpPower Network Maintenance Module provides a workflow management system that supports a utility’s conditional-monitoring and inspection processes. Network Maintenance features solve the typical challenge of combining the maintenance scheduling with restrictions implied by the network configuration.

 

In many configurations, modifying a switch can cause a short power loss that sometimes is enough to cause an outage on the customers side. That could mean a field crew being dispatched to a specific location to perform a switch or a configuration change, which wastes travel time. A best-practice maintenance schedule will consider resource constraints and minimize configuration changes while arranging tasks in the most efficient sequence.

 

Solution Highlights

The dpPower platform allows utilities to streamline and optimize network (grid) planning, design, operation, and maintenance processes in a secure, reliable environment. It provides a unified master network model in a single viewing environment, giving network operators one view of the truth regarding your electric grid across the organization.

 

Key to creating that unified view is eliminating data silos. Most utilities have a number of separate enterprise systems, each dedicated to a specialized function. Each also has a unique IT implementation, user interfaces, and user experience. Operators and IT specialists must manage all of these separate systems and establish and maintain links between them. This is time consuming and costly for your operators and IT personnel.

Model LV (0,4kV) network and customer subscription and meter data: This gives utilities a complete view of the network at all voltage levels, as well as visibility of distributed energy resources (micro generation). Customer-connection points are modeled to the meter level. dpPower can store meter energy and power readings, then use the data to generate load profiles and load curves.

 

Design and plan medium and low voltage networks: Electrical utilities can optimize how they design and plan their MV and LV networks. Assessments of load flow, fault (short circuit) calculations, and protection-sensitivity checks can be performed in pre-design, during design, and in real time operation* for both medium and low voltage networks, down to the customer meter.

 

Outage detection: dpPower offers a module to collect and manage customer trouble calls or service requests information. The dpPower outage location prediction engine aggregates the calls to predict the most probable location of the disconnecting device responsible for the outage. Information from smart meters is concurrently aggregated, enabling operators to identify probable outages even before customers start calling to report them. dpPower can also provide customers with automated notifications about the cause of the outage and estimated time of restoration. Customers can also receive automated notifications of planned outages long before the outage happens.

 

Outage restoration: Every outage, regardless of whether planned or unplanned, has an associated switching or restoration plan. During the planning phase for planned outages and during the recovery from an unplanned outage, the dpPower switching plan tracks all grid manipulation and temporary device usage, as well as customers to the meter level. Once power is restored, smart meters may be automatically pinged as part of an outage restoration verification. dpPower also includes a switching-plan-simulation mode for network testing or diagnostics.

 

Customer load profile generation: dpPower can store meter readings and use the collected data to generate load profiles and load curves. The load profiles can be used in predictive load flow calculations on both MV and LV networks.

 

Distributed energy resources and microgeneration: Rooftop solar power plant, wind power plants, and battery storage* may be modeled in LV network and used in predictive load flow calculations on MV and LV networks.

Industry Challenges

The business of electrical power distribution becomes more complex and diverse by the day. The utilities that provide power vary widely in the number and size of operational areas, the number of connected customers, network characteristics, and ownership structure. The providers operate in various operating environments, with some serving customers only in urban areas while others operate predominantly in rural environments.

Some larger utilities act as natural monopolies, part of a vertically integrated companies that are fully regulated by regional or national authorities. Smaller electric utilities often integrate horizontally, incorporating other activities such as water, telecom, gas or heat distribution, to achieve economy of scale.

But perhaps the greatest challenge is the transformation of the power utility mission. Electric energy was first provided in the late 1800s by many, small sources, each focused on serving a single application such as streetlights, trolleys, or home lighting. By the 1920s, these distributed resources were largely replaced by far-more efficient, large, power generation facilities serving all customers. The network needed for this new power distribution approach was designed to safely and reliably deliver electricity to customers from centrally dispatched power plants.

 

Today’s explosion of distributed power sources has added tremendous complexity that is severely challenging our distribution network. Almost every utility is facing an increasing proportion of decentralized and variable generation in their portfolio, including rooftop PV systems. They must also address new dynamic loads such as battery storage and electric vehicles. The simple, steady, one-way flow of electricity that was the norm in the past has become a dynamic, two-way power stream, with energy flowing back and forth between customer and utility.

Electrical utilities face the parallel challenges of increased business requirements to reduce operational expenditures while responding to expectations for improved quality of service, as measured by SAIDI/SAIFI or CAIDI/CAIFI indices.

 

Utilities are adapting to these challenges, while ensuring high levels of service quality, through considerable investments in more modern distribution networks. That includes large-scale implementations of advanced smart meters or other sensors, and high-performance software and communication systems.

 

The result is a far more complex and dynamic environment that requires a more flexible and intelligent network supported by real-time data, visibility, and analytics. Utilities need new ways to see into their network assets, enabling planners and operators to effectively plan and manage the flow or power to and from the grid. This enhanced network visibility helps operators optimize power, and identify and avert situations that can affect the safe and reliable delivery of power.

 

Low Voltage Outage Detection, Analysis & Meter

 

High and medium voltage networks have long been the focus of most enhancements to the electrical distribution network, while the low voltage (LV) network has largely been neglected.

 

That is changing, however, as more electric utilities see the benefits of increased visibility into their LV networks, enabling these networks to be more effectively modeled, managed, and optimized.

 

The continuous roll-out of smart meters (AMS) and increasing level of distributed generation resources in the LV network necessitates a parallel shift in the nature of both the planner and the operator perspective. Today and in the future, they require tools that enable them to design, visualize, and manage networks down to the end of the final mile, the whole way to the customers’ meters.

 

Furthermore, utility companies of all sizes face extensive requirements to report network operational status to both governments and owners. Facilitating and automating this reporting saves time and allows personnel to focus on more important tasks.

Network Information System

NIS, or Network Information System is supporting the business processes
throughout the entire lifecycle of the network.

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Network Lifecycle Management

  • Plan

  • Design

  • Implement

  • Operate

  • Maintain

  • Optimize

Summary of dpPower Features

In the Field Apps

  • Field Network Visualization
  • Field Switch Order & Work Order
  • Field Maintainer
  • Field Customer Connection

Network Operation

  • Real Time Network Analysis
  • Real Time Network Optimization
  • Fault Location, Isolation, and Restoration
  • Trouble Call Management
  • Outage Management
  • Switch Order Management
  • Work and Resource Planning
  • Operator Training Simulator

Network Planning

  • Network Design, Network Extensions & Customer Connections
  • Historical, current, and predictive Network Analysis
  • Spare Parts & BOM
  • Budget & Actual Cost Calculation
  • Project Management
  • Resource & Work planning

Network Maintenance

  • Inspection plans and rounds
  • Documents & Images
  • Checklists & Protocols

Interoperability & Interfaces

  • Online Interfaces
  • Enterprise Software APIs
  • ETLs or CIM XML Import/Export

Digpro Base Platform - Network Documentation & Visualization (GIS/NIS)

  • Asset Data & Location Registry
  • Network Models (CIM)
  • Customer Data Repository
  • Data Management & Validation
  • Collaboration & Workflow Engine
  • Geographical Maps, Schematics, & Auto Generated Schematics
  • Oracle Database or Postgre SQL Database