UI-ASSIST WORKSHOP THEME 8 INDIA UPDATES UI-ASSIST MINIWORKSHOP
Presentation – 3.1 By Santanu Mishra, IIT Kanpur N P Padhy, IIT Roorkee Theme-8: Lab Pilots & Validation 2
Theme 8: Objectives Reconfigurable Distribution Development of 01 04 Testbed Hybrid Energy Storage & HIL Validation-IIT Kanpur System-IIT Madras DER/DG Integration in Theme 8 AC-DC Microgrid & 02 02 05 Hybrid Microgrid & HIL Validation-IIT Roorkee Lab Testing & HIL Validation-IIT Delhi Validation Storage Modelling HIL 06 ScLab-TERI Validation- 03 03 IIT Bhubaneshwar 3
Hybrid microgrid test bed 4
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. Schematic representation of a revised IEEE 33 bus distribution system embracing OLTC, DFIG, DSTATCOM and DC microgrid Fig. Results state 1 and 2: a((i)) Power consumed by loads at buses 5 and 22. a(ii) # M. V. Gururaj and N. P. Padhy, "An Improvised Coordinated Voltage Control Scheme for Better OLTC operation. Reactive power provided by a(iii) DCMG, a(iv) DSTATCOM, Fig Utilization of Regulating Devices During Various Operating Conditions of a Distribution a(v) WGSC. b. Voltage profile of regulated Buses (i) Bus 22, (ii) Bus5, (iii) Bus1. c. System," in IEEE System journal, Accepted for publication. Voltage profile of IEEE 33 bus distribution system during (i) Steady state, (ii) Dynamic state 5
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. ILC-1 ILC-3 ILC-2 ILC-1 ILC-1 ILC-2 ILC-3 AC frequency AC frequency AC frequency AC frequency (10kW) (f), Hz (f), Hz (f), Hz (f), Hz 10kW CB1 = DC terminal DC terminal PV DC terminal DC terminal Voltage (v) Voltage (v) Voltage (v) 230V, 50 Hz Voltage (v) ~ 0.2Ω AC 0.05Ω ILC-2 Active power Active power Active power Active power of ILC (W) of ILC (W) of ILC (W) of ILC (W) Battery (5kW) CB2 0.05Ω = DC bus (800V) AC and DC AC and DC 400V, 50kWh AC and DC AC and DC load (W) load (W) load (W) ~ load (W) AC Load UC Output power Output power ILC-3 Output power of Battery of Battery Output power of Battery (W) of Battery (W) (W) (W) (15kW) 200V, 59F CB3 0.25Ω = Output power Output power 6 kW DC Load of UC (W) of UC (W) Output power Output power ~ of UC (W) of UC (W) (b) (a) (c) (d) 12kW Fig:Real time simulations results during islanded mode and utility connected mode: (a),(c) without voltage drop compensation, (b),(d) with voltage drop compensation Fig: Architecture of hybrid AC-DC microgrid with multiple interlinking converters # 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) 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. ILC-1 ILC-3 ILC-2 ILC-1 ILC-1 ILC-2 ILC-3 AC frequency AC frequency AC frequency AC frequency (10kW) (f), Hz (f), Hz (f), Hz (f), Hz 10kW CB1 = DC terminal DC terminal PV DC terminal DC terminal Voltage (v) Voltage (v) Voltage (v) 230V, 50 Hz Voltage (v) ~ 0.2Ω AC 0.05Ω ILC-2 Active power Active power Active power Active power of ILC (W) of ILC (W) of ILC (W) of ILC (W) Battery (5kW) CB2 0.05Ω = DC bus (800V) AC and DC AC and DC 400V, 50kWh AC and DC AC and DC load (W) load (W) load (W) ~ load (W) AC Load UC Output power Output power ILC-3 Output power of Battery of Battery Output power of Battery (W) of Battery (W) (W) (W) (15kW) 200V, 59F CB3 0.25Ω = Output power Output power 6 kW DC Load of UC (W) of UC (W) Output power Output power ~ of UC (W) of UC (W) (b) (a) (c) (d) 12kW Fig:Real time simulations results during islanded mode and utility connected mode: (a),(c) without voltage drop compensation, (b),(d) with voltage drop compensation Fig: Architecture of hybrid AC-DC microgrid with multiple interlinking converters # 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
T EST B ED FOR C ONTROL AND P ROTECTION OF AC/DC M ICROGRID IIT D ELHI RTDS Novacor for testing protection algorithm on DC DC Power distribution system with mixed Supplies renewable energy sources VSC-2 OPAL-RT for implementing DSO local and supervisory controller Grid connected for DC microgrid VSC Rectifying unit for 300 V DC VSC-1 Typhoon HIL 602+ for Three Phase Load Ferrite core inductors LC VSC with each leg used filter as DC-DC converter Power Analyzer DC Power Supplies Experimental Test Bed of Autonomous Microgrid for Testing the performance of the controller under unbalanced loading Experimental Test Bed for condition of distribution network Grid Integrated Distributed Storage System Battery Energy Storage System 3 phase auto-transformer 8
Impact analysis of P(f) and Q(V) regulations on passive 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 of anti-islanding protection and ancillary services in DGs. of anti-islanding protection and ancillary services in DGs. Experimental Test Bed Experimental Test Bed AIPS and LVRT Testing AIPS and LVRT Testing # D. Pal and B. K. Panigrahi, “Analysis and Mitigation of the Impact of Ancillary Services on Anti-Islanding Protection of Distributed Generators,” IEEE 9 Transactions on Sustainable Energy (Review).
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. 10
T est Bed for Storage Integration in Microgrids IIT Madras A wind energy system emulator for integrated microgrid setup Microgrid Setup with its various components 11
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.
Prototype Development for Storage Integration: IIT BBS Integration of storage into dc distribution 2Sw-Integrated dual-DC output converter system using separate converter based approach topology for battery integration Laboratory prototype for the proposed Using hybrid converter approach Simulation results for the topology (under development) proposed topology 13 D. Rana and O. Ray, “Analysis and Control of Integrated Dual-Boost Topology for Solar-Battery Integration,” NPEC 2019.
Modeling of Storage in Microgrids: IIT BBS Microgrid Test-bed to be Implementation of bidirectional developed at IIT BBSR converter using Typhoon HIL PHIL testing platform on Typhoon Simulation results for bidirectional ac-dc converter in hybrid microgrid 14 S. Bagudai, O. Ray and S.R. Samantaray, “ Evaluation of Control Strategies within Hybrid DC/AC Microgrids using Typhoon HIL ,” ICPS 2019.
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