admin
This user hasn't shared any biographical information
Posts by admin
Distribution Operation Modeling and Analysis (DOMA)
Jan 16th
DOMA Narrative
This application is based on a real-time
unbalanced distribution power flow for dynamically changing
distribution operating conditions. It analyzes the results of the
power flow simulations and provides the operator with the summary
of this analysis. It further provides other applications with
pseudo-measurements for each distribution system element from
within substations down to load centers in the secondaries. The
model is kept up-to-date by real-time updates of topology,
facilities parameters, load, and relevant components of the
transmission system.
The Distribution Operation Modeling and Analysis
supports three modes… Continue reading
Distribution Operations – Overview of Advanced Distribution Automation
Jan 16th
Introduction to Advanced Distribution Automation (ADA)
Objective: The objective of Advanced
Distribution Automation Function is to enhance the reliability of
power system service, power quality, and power system efficiency,
by automating the following three processes of distribution
operation control: data preparation in near-real-time; optimal
decision-making; and the control of distribution operations in
coordination with transmission and generation systems operations.
Scope: The ADA Function performs a) data
gathering, along with data consistency checking and correcting; b)
integrity checking of the distribution power system model; c) periodic
and event-driven system modeling and analysis; d) current and
predictive alarming; e) contingency… Continue reading
Wide-Area Monitoring And Control – Automated Control Functions
Jan 16th
Contents
- Narrative
- Normal Sequence Steps
- Steps – Alternative / Exception Sequences
Narrative
Transmission Automated Control (Baseline) describes a set of functions that are typically automated within a substation, but are not directly associated with protection, fault handling, or equipment maintenance. In general, they serve to optimize the operation of the power system and ensure its safe operation by preventing manually generated faults. These functions include:
- Changing transformer taps to regulate system voltage
- Switching capacitor banks or shunts in and out of the system to control voltage and reactive load
- Interlocking of
Substation Automation Data Acquisition and Control Functions
Jan 16th
Table of Contents
- Sampling, Sensing, and Control: e.g. PT and CT Sampling, Fault indicator sensing, LTC Raise/Lower controls, and Protection Trip Signal
- Protection IED Interactions: e.g. interactions among protection IED to determine whether to trip, and which equipment to trip
- Substation Master System: e.g. Substation system that manages the IEDs within the substation, ranging from simple data concentrators, RTUs, to sophisticated master stations for managing substation automation functions
- DER Management Systems Monitoring and Control of DER Devices: e.g. managing Distributed Energy Resources in a substation or at an industrial customer site
- SCADA Systems within
Power automation requires a complicated and sophisticated architecture
Jan 16th
Power automation requires a complicated and sophisticated architecture. As a result, system integrators and software developers need optimal solutions that can withstand tough conditions. These solutions require powerful controllers with multiple serial ports for legacy device connection. They must also perform front-end tasks, such as data acquisition, numerical computing, data distribution, and remote device monitoring and management. Network redundancy is also essential to ensure the continuous system operation of power automation applications. In addition, the effects of extreme temperature fluctuations must be overcome to maintain system stability.
The evolution of substation communications
Jan 16th
Trends in electric utility automation, specifically substation automation, have converged upon a common communications architecture with the goal of having interoperability between a variety of intelligent electronic devices (IEDs) found in the substation. This initiative was begun back in the late 1980s driven by the major North American utilities under the technical auspices of EPRI (Electric Power Research Institute). The resulting standard that emerged is known as the Utility Communications Architecture 2.0 (UCA2.0) and is becoming an international standard as IEC61850. This architecture, which is now being adopted worldwide by utilities and IED vendors alike, has as its underlying network… Continue reading
Kalki Sub-Station Gateways
Jan 16th
KSGL family of protocol hardware are field proven and secure solutions for protocol communication integration and translation requirements for the Power Generation, Transmission & Distribution, Oil & Gas, Industrial Automaton, Utilities, AMR, Remote Monitoring applications. Our products enable you to deploy standards based field-proven utility communication solutions with secure communication options quickly and cost-effectively.
Automation Systems currently need to support new and high speed standards like IEC 61850, IEEE C37.118, DNP3, IEC 104, ICCP and integrate in a secure manner with central control centers, local control centers, remote monitoring stations, data concentration centers, local and… Continue reading
Smart Grid Enabled Mobile Gateways
Jan 16th
KSGL Mobile Gateways comes with support for GSM/GPRS/EDGE/CDMA support, Analog and Digital I/O’s and upto 6 Serial and 1 Ethernet port all sub-station / EMI/EMC hardened for high availability and high EMI/EMC rugged requirements. Ideal for Smart Grid, APDRP applications with OpenVPN Support and Dynamic IP Support.
Remote monitoring and smart grid applications require extensive remote monitoring on standards based protocols. Kalkitech Mobile Gateways are ideal for this requirement. With a huge array of power system and metering protocols, together with substation hardened design, they are ideal for AMR/AMI and smart grid applications
Manufacturing Message Specification
Jan 16th
Manufacturing Message Specification (MMS) is an international standard (ISO 9506) dealing with messaging system for transferring real time process data and supervisory control information between networked devices and/or computer applications. The standard is developed and maintained by the ISO Technical Committee 184 (TC184). MMS defines the following
- A set of standard objects which must exist in every device, on which operations like read, write, event signaling etc can be executed. Virtual manufacturing device (VMD) is the main object and all other objects like variables, domains, journals, files etc comes under VMD.
- A set of standard
A concise introduction to the IEC 61850 standard
Jan 16th
Contents
- 1 Standard Documents
- 2 History
- 3 IEC 61850 Features
- 4 IEC 61850 – Related Developments
- 5 See also
- 6 References
- 7 External links
IEC 61850[1] is a standard for the design of electrical substation automation. IEC 61850 is a part of the International Electrotechnical Commission’s (IEC) Technical Committee 57 (TC57)[2] reference architecture for electric power systems. The abstract data models defined in IEC 61850 can be mapped to a number of… Continue reading
