UI-ASSIST WORKSHOP THEME 8 INDIA UPDATES UI-ASSIST MINIWORKSHOP - - PowerPoint PPT Presentation

UI-ASSIST WORKSHOP THEME 8 INDIA UPDATES

UI-ASSIST MINIWORKSHOP

2

Presentation – 3.1 By Santanu Mishra, IIT Kanpur N P Padhy, IIT Roorkee

Theme-8: Lab Pilots & Validation

3

Theme 8: Objectives

Development of Hybrid Energy Storage System-IIT Madras DER/DG Integration in Hybrid Microgrid & HIL Validation-IIT Delhi ScLab-TERI Theme 8 Lab Testing & Validation

04 05 06 01 03 03 02 02

Reconfigurable Distribution Testbed & HIL Validation-IIT Kanpur AC-DC Microgrid & HIL Validation-IIT Roorkee Storage Modelling HIL Validation- IIT Bhubaneshwar

4

Hybrid microgrid test bed

5

• Fig. Schematic representation of a revised IEEE 33 bus distribution system embracing OLTC,

DFIG, DSTATCOM and DC microgrid

 A unique time delay based coordinated voltage control for a distribution system

is proposed with an objective to improve the overall operating conditions of the system.

 Various voltage regulating devices are coordinated in a decentralized fashion by

assigning master/slave role.

• Fig. Results state 1 and 2: a((i)) Power consumed by loads at buses 5 and 22. a(ii)

OLTC operation. Reactive power provided by a(iii) DCMG, a(iv) DSTATCOM, Fig a(v) WGSC. b. Voltage profile of regulated Buses (i) Bus 22, (ii) Bus5, (iii) Bus1. c. Voltage profile of IEEE 33 bus distribution system during (i) Steady state, (ii) Dynamic state

# M. V. Gururaj and N. P. Padhy, "An Improvised Coordinated Voltage Control Scheme for Better Utilization of Regulating Devices During Various Operating Conditions of a Distribution System," in IEEE System journal, Accepted for publication.

6

 The proposed decentralized power flow control incorporates a modified hybrid AC-DC droop control to regulate

the power sharing among parallel connected interlinking converters during islanded and grid connected scenarios.

 Adaptive voltage drop estimation schemes is incorporated in the proposed decentralized control scheme to

compensate the discrepancy in power sharing among parallel interlinking converters due to dissimilar DC line parameters.

PV Battery UC

= ~ = ~ = ~

AC Load

AC

DC Load ILC-1 (10kW) ILC-2 (5kW) ILC-3 (15kW) 0.2Ω CB1 CB2 CB3 0.05Ω 0.25Ω 0.05Ω 12kW 6 kW 230V, 50 Hz 200V, 59F 400V, 50kWh 10kW DC bus (800V)

Fig: Architecture of hybrid AC-DC microgrid with multiple interlinking converters

AC frequency (f), Hz DC terminal Voltage (v) Active power

• f ILC (W)

AC and DC load (W) Output power

• f Battery (W)

Output power

• f UC (W)

ILC-1 ILC-2 ILC-3 AC frequency (f), Hz DC terminal Voltage (v) Active power

• f ILC (W)

AC and DC load (W) Output power

• f Battery (W)

Output power

• f UC (W)

(a) (b) AC frequency (f), Hz DC terminal Voltage (v) Active power

• f ILC (W)

AC and DC load (W) Output power

• f Battery

(W) Output power

• f UC (W)

(c) AC frequency (f), Hz DC terminal Voltage (v) Active power

• f ILC (W)

AC and DC load (W) Output power

• f Battery

(W) Output power

• f UC (W)

(d) ILC-1 ILC-2 ILC-3

Fig:Real time simulations results during islanded mode and utility connected mode: (a),(c) without voltage drop compensation, (b),(d) with voltage drop compensation # B K Chaithanya, and Narayana Prasad Padhy, "A Unified Decentralized control for Synergistic Power Sharing Among Multiple Parallel Interlinking Converters in Hybrid AC-DC Microgrid", IEEE Transactions on Industrial Electronics, (Under Review)

7

 The proposed decentralized power flow control incorporates a modified hybrid AC-DC droop control to regulate

the power sharing among parallel connected interlinking converters during islanded and grid connected scenarios.

 Adaptive voltage drop estimation schemes is incorporated in the proposed decentralized control scheme to

compensate the discrepancy in power sharing among parallel interlinking converters due to dissimilar DC line parameters.

PV Battery UC

= ~ = ~ = ~

AC Load

AC

DC Load ILC-1 (10kW) ILC-2 (5kW) ILC-3 (15kW) 0.2Ω CB1 CB2 CB3 0.05Ω 0.25Ω 0.05Ω 12kW 6 kW 230V, 50 Hz 200V, 59F 400V, 50kWh 10kW DC bus (800V)

Fig: Architecture of hybrid AC-DC microgrid with multiple interlinking converters

AC frequency (f), Hz DC terminal Voltage (v) Active power

• f ILC (W)

AC and DC load (W) Output power

• f Battery (W)

Output power

• f UC (W)

ILC-1 ILC-2 ILC-3 AC frequency (f), Hz DC terminal Voltage (v) Active power

• f ILC (W)

AC and DC load (W) Output power

• f Battery (W)

Output power

• f UC (W)

(a) (b) AC frequency (f), Hz DC terminal Voltage (v) Active power

• f ILC (W)

AC and DC load (W) Output power

• f Battery

(W) Output power

• f UC (W)

(c) AC frequency (f), Hz DC terminal Voltage (v) Active power

• f ILC (W)

AC and DC load (W) Output power

• f Battery

(W) Output power

• f UC (W)

(d) ILC-1 ILC-2 ILC-3

Fig:Real time simulations results during islanded mode and utility connected mode: (a),(c) without voltage drop compensation, (b),(d) with voltage drop compensation # B K Chaithanya, and Narayana Prasad Padhy, "A Unified Decentralized control for Synergistic Power Sharing Among Multiple Parallel Interlinking Converters in Hybrid AC-DC Microgrid", IEEE Transactions on Industrial Electronics, (Under Review)

8

TEST BED FOR CONTROL AND PROTECTION OF AC/DC MICROGRID

DC Power Supplies VSC-2 VSC-1 LC filter Power Analyzer Rectifying unit for 300 V DC Typhoon HIL 602+ for Experimental Test Bed of Autonomous Microgrid for Testing the performance of the controller under unbalanced loading condition of distribution network DSO Three Phase Load RTDS Novacor for testing protection algorithm on DC distribution system with mixed renewable energy sources OPAL-RT for implementing local and supervisory controller for DC microgrid 3 phase auto-transformer DC Power Supplies Grid connected VSC VSC with each leg used as DC-DC converter Ferrite core inductors Experimental Test Bed for Grid Integrated Distributed Storage System Battery Energy Storage System

IIT DELHI

9

Experimental Test Bed Experimental Test Bed AIPS and LVRT Testing AIPS and LVRT Testing

• Impact analysis of P(f) and Q(V) regulations on passive
• f anti-islanding protection and ancillary services in DGs.
• Impact analysis of P(f) and Q(V) regulations on passive

OVP/UVP, OFP/UFP anti-islanding protection of distributed generators.

• Analysis taking into account different types of load models

to formulate the power balance equations and obtain NDZ.

• Time domain simulations in PSCAD platform on CIGRE

benchmark distribution grid for further illustration of the conflicting requirement

• Framework development for simultaneous implementation
• f anti-islanding protection and ancillary services in DGs.

# D. Pal and B. K. Panigrahi, “Analysis and Mitigation of the Impact of Ancillary Services

• n

Anti-Islanding Protection

• f

Distributed Generators,” IEEE Transactions on Sustainable Energy (Review).

10

T est Bed Setup of Integrated Microgrid System: IIT Madras Features:



The scheme has a common DC bus and a common AC bus through which all renewable sources are connected.



The microgrid can support both DC and AC loads.



The ancillary services such as power quality are addressed through both the AC and DC grid connected inverter.



Energy management system which leads to appropriate power flow among the renewables, storage load and grid systems.

11

Microgrid Setup with its various components A wind energy system emulator for integrated microgrid setup

T est Bed for Storage Integration in Microgrids IIT Madras

Test Bed Setup of Integrated Microgrid System: IIT Madras

Features:

 The scheme has a common DC bus and a

common AC bus through which all renewable sources are connected.

 The microgrid can support both DC and AC

loads.

 The ancillary services such as power quality

are addressed through both the AC and DC grid connected inverter.

 Energy management system which leads to

appropriate power flow among the renewables, storage load and grid systems.

13

Prototype Development for Storage Integration: IIT BBS

Using hybrid converter approach

Integration of storage into dc distribution system using separate converter based approach 2Sw-Integrated dual-DC output converter topology for battery integration

Simulation results for the proposed topology

Laboratory prototype for the proposed topology (under development)

• D. Rana and O. Ray, “Analysis and Control of Integrated Dual-Boost Topology for Solar-Battery Integration,” NPEC 2019.

14

Modeling of Storage in Microgrids: IIT BBS

PHIL testing platform on Typhoon Microgrid Test-bed to be developed at IIT BBSR Implementation of bidirectional converter using Typhoon HIL Simulation results for bidirectional ac-dc converter in hybrid microgrid

• S. Bagudai, O. Ray and S.R. Samantaray, “Evaluation of Control Strategies within Hybrid DC/AC Microgrids using Typhoon HIL,” ICPS 2019.

15

TERI: Lab Testing & Validation

TERI’s Smart Controller Lab – Test Bed

Progress made during July 2019- March 2020

• Developed the program in Lab VIEW for remote operation of battery simulator using NI-VISA

application

• Code has been developed in real-time controller to monitor and control key parameters of battery

simulator

• Single-phase inverter prototype development is in progress with the help of IIT K and specifications

have been shared, and earlier expected to be line by June 2020*

• Software simulation study for DT overload management has been performed in MATLAB
• The MATLAB code has been shared with researcher at IIT Kanpur, and network modelling work is in

progress*

* Progress is delayed due to Covid-19 Schematic Diagram of Lab Set-up

TERI: Lab Testing & Validation

Activities performed

Configured the connection for remote access of battery simulator’s operations through NI-VISA application Developed a driver for real-time programmable

• peration of battery

simulator using Lab VIEW and NI controller Granular form of data with 1 min. interval, was measured for 24 hour period of all four DTs placed in Taimur Nagar Created & simulated Taimur Nagar’s feeder network in MATLAB based on data obtained from field measurement

Schematic of interface b/w real-time controller and Lab equipment Component of DT overload management system

17

Reconfigurable Distribution Testbed: IIT Kanpur

• Reconfigurable

distribution system where various converters, interfaces, control, and protection aspects can be tested.

• Test

bed is interfaced with Power Amplifiers, RTDS, Typhoon.

Testbed Videos: https://drive.google.com/drive/folders/1EgFT2ayhYNPC4Y8SLkHk4DqJ0HZ9hXHV