NSF Center for GRid-connected Advanced Power Electronic Systems - - PowerPoint PPT Presentation

▶

Sep 10, 2022 469 likes •581 views

GRid-Connected Advanced Power Electronic Systems NSF Center for GRid-connected Advanced Power Electronic Systems (GRAPES) GR-17-14 Decentralized Energy Management and Robust Decisions for Networked Microgrids in Next-Generation Distribution

SLIDE 1

GRid-Connected Advanced Power Electronic Systems

Confidential – Semi-Annual Meeting May 2017

NSF Center for GRid-connected Advanced Power Electronic Systems (GRAPES) GR-17-14 Decentralized Energy Management and Robust Decisions for Networked Microgrids in Next-Generation Distribution Systems

Dr. Lingfeng Wang, UW-Milwaukee

Semi-Annual Meeting May 23-24, 2017

SLIDE 2

GRid-Connected Advanced Power Electronic Systems

Confidential – Semi-Annual Meeting May 2017

Project Overview

Anticipated Project Dates: 7/1/2017-6/30/2018
PI Name: Dr. Lingfeng Wang, Associate

Professor, University of Wisconsin-Milwaukee

Overall Project Budget: $62,753.95

SLIDE 3

GRid-Connected Advanced Power Electronic Systems

Confidential – Semi-Annual Meeting May 2017

 An increasing amount of distributed energy resources (DERs) is being

integrated into both distribution systems (DS) and networked microgrids (MGs).

 The coordination among DS and MGs becomes essential for DS operators

(DSOs) and MG operators (MGOs) considering the high uncertainties of renewable energies and load demands.

Motivation of the Proposed Work

HV system

MG1 MG2 MG3

SLIDE 4

GRid-Connected Advanced Power Electronic Systems

Confidential – Semi-Annual Meeting May 2017

Decisions of DSO and MGs, and Their Interactions

 Different entities (DS or MGs) demand a robust strategy to

avoid the risk from uncertainties of renewables and loads.

 The robust decisions may include the HV power (selling or

buying), ESS charging/discharging power, CL regulation, MTG generation, and power exchange.

SLIDE 5

GRid-Connected Advanced Power Electronic Systems

Confidential – Semi-Annual Meeting May 2017

Preliminary Problem Formulation (partial)

SLIDE 6

GRid-Connected Advanced Power Electronic Systems

Confidential – Semi-Annual Meeting May 2017

Project Objectives

 In this project, a novel, decentralized energy management

framework will be developed to coordinate the power exchange between DS and MGs in a fully decentralized fashion based on the alternating direction method of multipliers (ADMM) algorithm.

 The energy management model in each entity (DS or MGs) is

formulated using two-stage robust optimization to address the uncertainties of renewables and load demands.

 It is treated as a second order cone programming (SOCP)

problem based on a relaxed distflow model, and the robust model is solved by column and constraint generation (CCG) algorithm.

 The proposed method will be tested on a number of IEEE test

systems and practical systems with multiple interconnected MGs.

SLIDE 7

GRid-Connected Advanced Power Electronic Systems

Confidential – Semi-Annual Meeting May 2017

Novelty of the Proposed Work

 The main contributions and innovations of this

proposed project are twofold:

The dispatchable DG (MTG), controllable load (CL),

intermittent energy resources (WTG and PV), and ESS are comprehensively and simultaneously considered in the proposed decentralized energy management strategy.

An efficient two-stage robust optimization framework

is deployed to hedge against the uncertainties, which are represented by uncertainty sets rather than scenarios as in the existing literature.

SLIDE 8

GRid-Connected Advanced Power Electronic Systems

Confidential – Semi-Annual Meeting May 2017

Expected Deliverables

 A novel, decentralized energy management strategy for

coordinating the interactions among DS and MGs and hedging against uncertainties.

 Detailed documentation on all the system models, solution

methodologies, and research outcomes.

 Case studies on IEEE test systems and practical systems.  Publications in top journals and conferences.  At least one graduate student and one undergraduate student

will be involved in this project.

SLIDE 9

GRid-Connected Advanced Power Electronic Systems

Confidential – Semi-Annual Meeting May 2017

 The coordinated energy management of networked MGs and DS is

highly essential to DS and MGs, and the robust model could improve the economic efficiency of the whole distribution system.

 The agreement between DS and MGs can be reached in a finite

number of iterations by ADMM integrated with CCG algorithm.

 If successful, this work will be highly beneficial to more effectively

coordinating interconnected microgrids and distribution grids to enable higher renewable energy integration as well as more reliable and more economical power system operations.

NSF Center for GRid-connected Advanced Power Electronic Systems (GRAPES) GR-17-14 Decentralized Energy Management and Robust Decisions for Networked Microgrids in Next-Generation Distribution Systems

Semi-Annual Meeting May 23-24, 2017

Project Overview

Professor, University of Wisconsin-Milwaukee

 An increasing amount of distributed energy resources (DERs) is being

integrated into both distribution systems (DS) and networked microgrids (MGs).

 The coordination among DS and MGs becomes essential for DS operators

(DSOs) and MG operators (MGOs) considering the high uncertainties of renewable energies and load demands.

Motivation of the Proposed Work

Decisions of DSO and MGs, and Their Interactions

 Different entities (DS or MGs) demand a robust strategy to

avoid the risk from uncertainties of renewables and loads.

 The robust decisions may include the HV power (selling or

buying), ESS charging/discharging power, CL regulation, MTG generation, and power exchange.

Preliminary Problem Formulation (partial)

Project Objectives

 In this project, a novel, decentralized energy management

framework will be developed to coordinate the power exchange between DS and MGs in a fully decentralized fashion based on the alternating direction method of multipliers (ADMM) algorithm.

 The energy management model in each entity (DS or MGs) is

formulated using two-stage robust optimization to address the uncertainties of renewables and load demands.

 It is treated as a second order cone programming (SOCP)

problem based on a relaxed distflow model, and the robust model is solved by column and constraint generation (CCG) algorithm.

 The proposed method will be tested on a number of IEEE test

systems and practical systems with multiple interconnected MGs.

Novelty of the Proposed Work

 The main contributions and innovations of this

proposed project are twofold:

intermittent energy resources (WTG and PV), and ESS are comprehensively and simultaneously considered in the proposed decentralized energy management strategy.

is deployed to hedge against the uncertainties, which are represented by uncertainty sets rather than scenarios as in the existing literature.

Expected Deliverables

 A novel, decentralized energy management strategy for

coordinating the interactions among DS and MGs and hedging against uncertainties.

 Detailed documentation on all the system models, solution

methodologies, and research outcomes.

 Case studies on IEEE test systems and practical systems.  Publications in top journals and conferences.  At least one graduate student and one undergraduate student

will be involved in this project.

 The coordinated energy management of networked MGs and DS is

highly essential to DS and MGs, and the robust model could improve the economic efficiency of the whole distribution system.

 The agreement between DS and MGs can be reached in a finite

number of iterations by ADMM integrated with CCG algorithm.

 If successful, this work will be highly beneficial to more effectively

coordinating interconnected microgrids and distribution grids to enable higher renewable energy integration as well as more reliable and more economical power system operations.

 We will also perform comprehensive case studies for practical electric

power systems provided by the GRAPES IAB – Detailed technical report could be prepared for each interested IAB member.

 The research outcomes will be integrated into educational curricula

and outreach activities.

Broader Impact of the Project