Background:

 

• Current Scenario in Indian Power Sector

Indian power sector is undergoing reformation. RAPDRP programs are going on. Distribution sector is getting privatized. However, here are our observations.

Higher T&D losses and lower equipment life

Commercial losses are being addressed. But we observe a large absence of comprehensive technical approach.For example, at distribution level, network is highly unbalanced. This leads to overloading of transformer windings, overheating equipment, generation of zero sequence currents and significant increases in the losses in Distribution network.

Unaccounted system anomalies in Distribution

• Systems exhibit islanding in voltage and frequency there by reducing efficiency further. Frequency disturbances are quite common and go unnoticed on account of lack of PMUs.
• Current systems are unable to report real-time Q requirements. This leads to a situation where the appropriate levels of the reactive power cannot be injected at a specific time.
• Current systems are unable to perform harmonic measurements in real time.
• DISCOMs and units inter-account based on kWh. Other dynamic parameters are generally ignored.  SLAs need to be more reflective of the true scenario in the distribution network.

• Need for new approach

Figure 1: Imbalanced - star connected Load

Figure 2 : Imbalanced load leading to Zero sequence currents

iEnergy’s offerings in SmartGrid Solutions:

 

iEnergy has expertise in many aspects of power systems engineering. iEnergy takes up multi-disciplinary approach including

• new measurement and state estimation approaches
• transient and harmonic analysis of distribution network
• dynamic optimization of  P, Q and V in real time
• power system stabilization studies and harmonic studies

 

iEnergy proposes to orchestrate a multi-pronged strategy combining the most advanced control and estimation algorithms combined with advanced hardware to

• reduce reactive power related losses
• mitigate the level of imbalance in distribution transformers
• prevent islanding in frequency and voltage
• monitor and control the level of reactive power demand throughout the network
• control frequency and voltage at distribution feeders

 

iEnergy proposes to work closely with utilities and create “Pilots” in one/multiple stagesbased on

• evolving, practical, “reap as you go”integratable multi-stage approach to demonstratereturnsto stake holders from stage to stage
• comprehensive technical framework keeping a bigger picture and longer lifecycle of utility in mind
• standards based approach to promote inter-operability of products from multiple vendors across the globe and promote standard platforms

 

For details, please write to: info@ienergy.net.in