KLG Systel Limited, a leading software solution provider in Electrical System Studies & Online Electrical System monitoring is pleased to announce partnership with best of breed solution DIgSILENT from Germany. DIgSILENT is leading software & consulting company with vast practical experience. KLG intends to soon run a promo program for all its existing customers for DIgSILENT. Kindly get in touch with local KLG offices for getting more details about DIgSILENT.

About KLG's Power System Solutions SBU

The Power System Solutions SBU provides end-to-end integrated solutions for the complete Business Process Automation of Power Distribution Utilities as well as solutions for end consumers of power. These solutions cover hardware, software and communication technologies. KLG has been developing the products for Power Sector and has assimilated a lot of experience in the Indian Power Sector.

The SBU has been catering to industry needs in areas such as Generation, Transmission & Distribution. KLG has served over the years for customers such as State electricity boards, large public sector organizations such as IOCL, Kribhco, BPCL, HPCL for creation of Electrical networks & system studies of old existing plants and for newer projects. In private sector almost all the consulting companies such as EIL, TCE Consulting Engineers, UHDE, TICB, Jacobs have been served by KLG including large corporate houses such as TATA, L&T, Reliance industries, Reliance ADAG (Reliance Infrastructure).

About DIgSILENT

DIgSILENT GmbH is a consulting and software company providing highly specialized services in the field of electrical power systems for transmission, distribution, generation and industrial plants. DIgSILENT develops the leading integrated power system analysis software covering the full range of standard and highly sophisticated applications including a performance monitoring system.

DIgSILENT GmbH is staffed with experts of various disciplines relevant for performing highly specialized research activities, consulting services and software developments. Special expertise is available in many actual fields of electrical engineering for the liberalized power market and latest power generation technologies.

DIgSILENT GmbH is a fully independent, privately owned company located in Gomaringen, Germany where the new offices are in operation since early 2002. DIgSILENT continued its expansion by establishing offices in Australia, South Africa, Italy and Chile allowing world-wide increase in its software products and services. DIgSILENT has done software installations and conducted services in more than 100 countries.

DIgSILENT GmbH is at the same time an IPP operating its own mini hydro power plant with 200 kW installed capacity. Two Francis turbines are producing around 1 GWh a year. The power plant which is operated since 1909 is fully automated and especially used for equipment testing and research activities for measurement and test methods.

• Time-stamped data model
• Management of operational scenarios
• Base lining, versioning and publishing of models

Integrated node and branch or switch and component modeling, DIgSILENT has set standards and trends in power system modeling, analysis and simulation for more than 25 years. The proven advantages of the Power Factory software are its overall functional integration, its applicability to the modeling of generation, transmission, distribution, industrial grids, and analysis of these grids’ interactions. Electrical grids, planning processes and operation processes are becoming increasingly complex due to market unbundling, expansion of interconnections and distributed generation. This increases the demands on software tools in terms of data quality, flexibility and manageability. With Power Factory Version 14, DIgSILENT presents a further step towards seamless integration of functionality and data management within a multi-user environment. The building and organizing of schemes, scenarios, versions and running arrangements have been added for improved handling.

Version 14 Key Features

• Single and multi-user project data administration environment.
• Database with historical data storage and auditing functionality.
• Integrated overview diagrams, simplified and detailed single line diagrams.
• Fast contingency analysis tools (AC and DC load flow).
• Contingency-constrained economic dispatch including quad booster optimization.
• Distributed/embedded power generation modeling.
• New models for wind power and virtual power plants.

DIgSILENT Power Factory is the most economical solution, as data handling, modeling capabilities and overall functionality replaces a set of other software systems, thereby minimizing project execution costs and training requirements. The all-in-one Power Factory solution promotes highly-optimized workflow. DIgSILENT Power Factory is easy to use and caters for all standard power system analysis needs, including high-end applications in new technologies such as wind power and distributed generation and handling of very large power systems. In addition to the stand-alone solution, the Power Factory engine can be smoothly integrated with GIS, DMS and EMS supporting open system standards.

Power Factory Overview

Functional Integration and Applications

• Implements as a single software solution allowing fast 'walk through' over the database and execution environment.
• INo need to reload or update modules, transfer or convert data and results between different program applications.
• IVertically integrated power equipment model concept allowing models to be shared by all analysis functions.
• ISupport of transmission, distribution and industrial system design and simulation.
• IModeling and simulation of railway systems.
• ISimulation of any kind of wind turbines and wind parks.
• ISmart Grid modeling including virtual power plants and distributed generation such as PV-panels, micro turbines, battery storage, CHP, etc.

Power Factory Software Concept

Single Database Concept

• Optimal data organization and project definitions for performing any type of calculation, storage of settings, diagrams and visualization options or software operation sequences.
• No need for tedious organization of several files for defining the various analysis aspects and project execution workflows.
• Database environment fully integrates all necessary data, such as that required for defining cases, scenarios, variants, single-line graphics, outputs, run conditions, calculation options, graphics or user-defined models. Saving a project includes everything required to rerun all defined cases at a later stage.
• Access to all data through a comfortable and powerful data manager, object browser, plus various types of diagrams and wizards.
• Comprehensive, non-redundant data model supporting all calculation functions.

User Roles

• Access to user information through a user accounting system.
• Protection of data through different types of access rights.
• Folder sharing between users with "read-only" access. This is especially useful for libraries and network base cases which should be administrated only by authorized personnel.

Multi-User Operation and Team working

• Multi-user data administration supporting MS-SQL or ORACLE databases.
• Support of user accounting, access rights and data sharing, featuring the powerful option of allowing several users to work on the same project in a coordinated way. This demonstrates the concept of non-redundant data management in Power Factory.
• Management of multi-user data editing via the definition of a base project, project versions and derived projects (virtual projects).
• Support of version control including rollback functions and merge/compare tools.

Network Variations, Expansion Stages Management and Operational Scenarios

• Support of time-stamped network variations.
• Variation scheduler for easy handling of sub-projects.
• Definition of study cases and operational scenarios.
• Activation of network stages according to study time. This automatically addresses the handling of power system components according to their commissioning and de-commissioning dates.

Multi-Level Models

• Data describing network models such as cables, machines, loads, transformers, etc., are subdivided into elementary data and data type which point to libraries.
• All data to be entered are grouped into basic data (data required for all calculations) and function level data (data required only for executing specific calculations).
• Data are simply entered in physical quantities rather than in per unit values, minimizing the need for manual recalculation and conversion of data.
• Verification of input data, with detailed warning and error messages.
• Integrated calculators for asynchronous machines, cable data and tower configurations.

Batch Mode, Engine Mode and Interfaces

• Fully interactive window mode according to the latest, proven standards
• Engine mode for background operation.
• Various communication features to exchange data with other applications such as GIS, SCADA and real-time control systems via OPC, shared memory, DGS (CSV, ODBC), etc.
• Hybrid operation switching between background and windowing mode according to users’ needs.
• Data exchange via CIM, PSS/E, UCTE and many other file formats.

Link to Power Factory V14 Software

DigSILENT Overview

DIgSILENT Station Ware

DIgSILENT Station Ware provides a reliable central protection settings database and management system for the complete power system substation data, both to manage the various control parameters and to centrally store substation related information and data, based on latest .NET technology.

Station Ware stores and records all settings in a central database, allows modeling of all relevant workflow sequences, provides quick access to relay manuals, interfaces with manufacturer specific relay settings software, and integrates with Power Factory software, allowing powerful and easy-to-use settings co-ordination studies.

What is the idea behind Station Ware?

Modern numerical relays have a large number of settings that are determined, stored and communicated by proprietary software solutions (these may even be suitable for only a particular manufacturer or even a series or type of relay). This results in a fragmented and distributed settings "database." DIgSILENT Station Ware provides a single system that incorporates all such different device protocols, thereby providing one manageable software data storage system, based on modern IT techniques, facilitating data interfacing and exchange in a transparent and hassle free manner.

Link to Power Factory

Power Factory's data exchange facility allows it to access the settings stored in Station Ware, such that these may be used as input for the powerful Power Factory system simulation and protection setting tools. Settings that are calculated by using these tools may then be transferred back to Station Ware.

Link to Station Ware Brochure

DIgSILENT Grid Code

New rules and grid codes to connect generators to the grid are emerging worldwide.
In every country or region, the operators responsible for the safety and reliability of the power system have established different requirements to connect renewable generation systems to transmission and distribution networks. Such requirements are highly dependent upon the characteristics of individual power systems.

DIgSILENT has developed and released a new test verification tool called DIgSILENT Grid Code v1.0, in response to the need to verify whether a wind farm, solar plant, or any other generator is compliant with local Grid Code requirements on the basis of unit tests executed. Some of the functions can be verified off-line or on-line. DIgSILENT Grid Code is already being used by manufacturers and laboratories during field testing of wind turbines to verify compliance.

Among many others, DIgSILENT Grid Code compliance verification functions are:

• Verification of generator response during voltage dips and supervision of power plant non-disconnection, according to the selected grid code or other international standards (Spain-REE, Germany-E.ON and MV, England. NGC, France-RTE, IEC-61400-21 Ed.2,others).
• Other requirements from classical power quality assessment, such as the flicker level according to IEC-61000-4-15 or harmonic emission levels according to IEC-61000-4-7 up to most modern methods in power quality assessment for renewable incl. IEC-61400-21.

The application can be automated and integrated into existing SCADA systems and can also run on a workstation as an off-line verification tool.

DIgSILENT Grid Code v1.0 key features

• Data Visualizer to plot data series and graphs
• Grid Code Compliance to check the compliance with given requirements. The following Grid Codes are supported:
  • Spain: REE P.O 12.3 according to PVVC part, both particular and general procedures.
  • Germany: E.ON Netz 2006 High and Extra High Voltage
  • UK: NGC Grid code
  • Denmark: Energy Net (voltage dip shape).
  • IEC 61400-21 Ed 2 (voltage dip shape)
• Model Validation to check if simulation results (e.g. generated by Power Factory) and test result are matching
• File Editor to post-process data files and speed up the analysis
• Flicker meter IEC 61000-4-15 to assess flicker emission levels
• Harmonics IEC 61000-4-7 to assess harmonics levels
• Toolbox IEC 61400-21 Measurement and assessment of power quality characteristics of grid connected wind turbines to calculate instantaneous flicker, flicker coefficients, flicker during switching operations, to assess current harmonic emissions, inter-harmonics and higher frequency component emission levels, observation of the evolution in time of DFT components.
• Phasors Viewer to visualize the evolution in time of spatial Phasors (fundamental and sequence components, line and phase measurements).

Additional tools have been developed to improve post-processing for managing files from different measurement equipments and to allow users to create and develop their own grid code:

• Grid Code Editor to edit the requirements of the selected grid code.
• File Editor to post-process data files and speed up the analysis.
• Re-sampling to resample files to a higher or lower sampling frequency.
• File merging to synchronize and bring together files at different sampling rates (wind speed file + instantaneous voltage-current file).

Link to DigSILENT GrideCode Brochure

DIgSILENT Power Factory Monitor

Integrated, multi-functional Dynamic System Monitor

PRODUCT Application

Unbundling of electricity supply systems and the introduction of new technologies in all areas of generation, transmission and distribution has made power system operation more complex. Supervision of generator performance according to Grid Codes and Connection Conditions, the stability supervision of large transmission networks at specific locations, verification of power quality criteria in distribution as well as the determination and analysis of key system parameters has generated the need for power system monitoring and grid supervision beyond classical fault recording and SCADA based trending systems. Under those aspects, wide area monitoring (WAM) via phase measurement units (PMU) is just one special feature out of all monitoring applications. The Power Factory Monitor fully integrates with DIgSILENT Power Factory software offering easy access to recorded data, analysis of trends, verification of system upset responses and test results.

Typical Power Factory Monitor Applications:

• Generation outage, load rejection and system frequency response analysis.
• Voltage stability monitoring and steady-state instability supervision.
• Power oscillation detection and analysis.
• System frequency control supervision, analysis and classification.
• Tie-line power exchange and network control characteristics.
• Control performance supervision and identification.
• Voltage dip classification and analysis.
• Power quality monitoring.
• Load parameter identification.
• Supervision of Connection Conditions and Ancillary Services.
• Wide Area Monitoring (WAM) via coordinated Phasor Measurement Units (PMU).

In addition to on-line grid supervising functions, the Power Factory Monitor is an excellent high-end general purpose measurement instrument for all kind of plant tests typically performed to support device and plant modeling as well as parameter identification to allow for precise power systems simulation tasks.

Among these are the following applications:

• Generator, motor and general feeder load tests and parameter identification.
• Power plant measurements and identification (AVR, exciter, PSS, turbine, boiler, hydraulic systems).
• Determination of wind turbine characteristics and control behavior.
• Optimal tuning of Power System Stabilizers (PSS).

The Power Factory Monitor interacts perfectly with the DIgSILENT power system analysis software Power Factory, featuring seamless integration of system and plant tests, plant modeling and parameter identification.

Functional Overview

The DIgSILENT Power Factory Monitor is an integrated, multifunctional data acquisition system that covers recording, monitoring and analysis of signals in all relevant time frames. It is especially designed to cover all needs of Transmission, Distribution and Generation on all voltage levels. Flexible hardware and software components allow for the configuration of portable systems, stand-alone cabinet mounted installations as well as LAN based multiple units, multiple location systems being coordinated and supervised via Master Stations.

Key functions which could be operated simultaneously are:

• Fast and slow fundamental frequency signals recording (triggered and continuous)
• Triggered instantaneous value recording
• Phasor measurements
• Event recording and power quality monitoring
• Condition supervision and monitoring

Any quantity deviating from normal conditions is recorded and analyzed. In addition, on-line analysis of signals is provided featuring the detection of inherent problems like system and control oscillations, deviation from connection conditions or power quality aspects. The Power Factory Monitor is a stand-alone system including all necessary hardware and software functions for signal conditioning, signal conversion, data storage and processing, calculation and documentation. In addition, remote access is possible via modem, TCPI/IP networks; WWW and special SCADA interface techniques. Several monitoring systems can be synchronized to 1œs using GPS clock for precise parallel sampling, e.g. a basic requirement for system wide area phasor measurements.

Link to Power Factory Monitor Product