PRDC

Products > Power System Analysis software package - MiPower

Introduction

MiPower is a highly interactive, user-friendly windows based Power System Analysis package. It includes a set of modules for performing a wide range of power system design and analysis study. MiPower features include a top notch Windows GUI with centralized database. Steady state, transient and electro-magnetic transient analysis can be performed with utmost accuracy and tolerance.

Power System Network Editor

Icons of all power system components.
Multi-Layering of objects to view, select edit and present the results.
Multi-level nesting of sub-systems.
Resizing for individual drawing elements.
Switching ON/OFF for all power system elements.
Highlighting of study results lies within a band of minimum, normal and maximum limits.
Panning to facilitate fast and easy scrolling along X and Y direction.
Realtime zooming facility for the diagram to any fractions of a zoom level.
Reduction of the whole drawing to any fraction to fit any paper size.
GPS Interface

Database Manager

Enhanced database creation including detailed modelling of power system components.
Use of advanced techniques for all studies.
Studies at your fingertips - once database is created accurately any study can be conducted.
User defined number of contingencies and Schedules.
Splitting of database into two groups - element information and library information - avoids repetitive entry of power system elements having same parameters.
Toggling Facility - Database to Network editor, Database to Graph to facilitate easier navigation.

Graph Utility

Multiple X and Y columns can be plotted in the same view
User defined colour, thickness, symbols and number of symbols on curve, title and font.
Conversion of graphs to dxf and text formats.
Harmonic analysis of graphs
Mathematical operations on Graphs
Pick Drag and drop facility for relay curves
Changing the base voltage of the plotted graphs

Free Programmable Blocks

Designed for Simulation and testing of Control Blocks
Customized Design of Governers, AVR'S, SVC'S, HVDC controllers are possible
Control blocks can be linked with Transient stability fortesting the performance of the system

Load flow Analysis

Slack Bus Concept Gauss - Seidel, Newton - Raphson, Fast- DeCoupled techniques
Frequency dependent, Optimal load, Ac/DC flow
Multiple islanded systems
Customized report facility
Real & Reactive power Optimization
Economic Dispatch
Contingency Ranking & Analysis

Short Circuits Analysis

Fault levels for symmetrical and asymmetrical faults.
ANSI/IEEE standards
IEC standards including 363 & 909
All types of symmetrical and asymmetrical faults with and without impedance

Transient Stability Study

Various types of fault at user defined location
Detailed representation of excitation systems, turbines governors static var compensators, power system stabilizers and HVDC controllers
Load Shedding
Simulation of operation of voltage / current / frequency relays and distance relays

Relay Co-ordination

Gives new relay settings for improved performance and computer zone settings for distance relays. Relay co-ordination can be conducted for relays of all make and with user defined characteristics for overcurrent and distance relays. Simulation option available.

Voltage Instability Analysis

Designed to assess the risk of Voltage instability and margin of stability during sudden disturbances, under steady state conditions. It ranks the load busses based on the L-index value and the highest L-index indicates the system collapse point. The value of L-index is zero at no load and 1 at the verge of collapsing point.

Harmonic Analysis

Performs three-phase harmonic load flow to compute harmonic distortion factors. Calculates harmonic transfer and driving point impedances for both transmission and distribution power systems.

Dynamic Stability Analysis

Performs the dynamic stability analysis in both frequency domain(Eigen value analysis) and time domain.

Network Reduction

Provides the static and dynamic equivalents for the power system. In case of Static equivalent, program determines the bus admittance matrix (Y ) as seen from the desired nodes by bus eliminating the rest of the nodes. In case of dynamic equivalent, a single machine equivalent circuit is determined.

Sub-Synchronous Resonance

Frequency response method is used for analyzing the stability of sub-sysynchronous resonance, as modelled by a number of synchronous machines and an extensive series compensated transmission network. The method allows the simultaneous detailed modelling of all machine shafts and control loops and hence permits investigation of possible interaction in the subsynchronous resonance frequency band between machines in different plants.

Electro Magnetic Transient Analysis

Performs both transient and dynamic over voltage studies. The highest discharge currents and enrgy stresses for the protective equipment and to co-ordinated them with withstand levels of the protected equipment is determined. Over voltages, which are caused due to energization of lines, transformers and shunt elements, during fault inceptions and on clearing of faults are calculated.

Line and Cable Parameter Calculation

Program calculates positive and zero sequence parameters of the overhead lines and cables used in single and multi-phase configurations over a wide range of user defined frequencies and temperatures. It also calculates the mutual impedance between power and communication lines.

Long Term Load Forecast

Long Term Load Forecast module is designed for forecasting the energy demand during the planning stages of a power system. The salient features of this tool are

Generality to apply for any type of load data
Can accommodate any number of independent variable,which are very significant.
The method adopts multivariate regression techniques forforecasting
Capability to select the best model out of various models

Three-phase Load Flow Analysis

Load Flow Analysis for 3-phase four wire system.

MiPower Utlities

AutoCAD Interface

AutoCAD Interface is a utility to convert the MiPower Network to AutoCAD and to plot the results obtained using the MiPower applications on an existing AutoCAD diagram.

Ground Mat Design

PowerGMD is designed to compute the substation ground grid.This is a dialog based interactive program.

Automatic single Line Diagram Generation

ASLG is a utility to generate the single line diagram of the electrical system. Input to ASLG is the MiPower database file for the particular electrical system.