Multi-Timescale Model Predictive Control of Battery Energy Storage System Using Conic Relaxation in Smart Distribution Grids

This paper proposes a multi-timescale volt/var optimization for the optimal dispatch of battery energy storage system in smart distribution grids. It aims to coordinate the substation on-load tap changer operation on slow-timescale (hourly basis) with the photovoltaic inverters and battery storage operations on fast-timescale (15 min basis). This coordination is achieved by using two-stage stochastic programming and implemented via model predictive control. The power loss and energy purchase cost are reduced while maintaining voltages within limits. The forecasting uncertainties are modeled by generating a large number of random scenarios and then subsequently reducing scenario numbers to establish a tradeoff between computational burden and accuracy of the solution. The mixed-integer second-order cone program (MISOCP) is formulated with reduced scenarios, which achieves global optimum. Simulation results demonstrate the effectiveness of proposed MISOCP model in keeping the voltages within limits under forecasting uncertainties.

[1]  S. Ali Pourmousavi,et al.  Multi-Timescale Power Management for Islanded Microgrids Including Storage and Demand Response , 2015, IEEE Transactions on Smart Grid.

[2]  V. Calderaro,et al.  Optimal Decentralized Voltage Control for Distribution Systems With Inverter-Based Distributed Generators , 2014, IEEE Transactions on Power Systems.

[3]  M. Shahidehpour,et al.  Stochastic Security-Constrained Unit Commitment , 2007, IEEE Transactions on Power Systems.

[4]  James L. Kirtley,et al.  Reactive Power Ancillary Service of Synchronous DGs in Coordination With Voltage Control Devices , 2017, IEEE Transactions on Smart Grid.

[5]  Thomas Wiedemann,et al.  Show Me!: Large-Scale Smart Grid Demonstrations for European Distribution Networks , 2015, IEEE Power and Energy Magazine.

[6]  Fang Zhang,et al.  SCUC with battery energy storage system for peak-load shaving and reserve support , 2013, 2013 IEEE Power & Energy Society General Meeting.

[7]  Jayashri Ravishankar,et al.  Coordinated control of step voltage regulator and D-STATCOM in the presence of distributed photovoltaic systems , 2016, 2016 IEEE International Conference on Power System Technology (POWERCON).

[8]  Marcos J. Rider,et al.  Optimal Operation of Distribution Networks Considering Energy Storage Devices , 2015, IEEE Transactions on Smart Grid.

[9]  Toshihisa Funabashi,et al.  Optimal Power Scheduling for Smart Grids Considering Controllable Loads and High Penetration of Photovoltaic Generation , 2014, IEEE Transactions on Smart Grid.

[10]  Yue Song,et al.  Optimal Operation of Battery Energy Storage System Considering Distribution System Uncertainty , 2018, IEEE Transactions on Sustainable Energy.

[11]  Joshua A. Taylor Convex Optimization of Power Systems , 2015 .

[12]  Troy Miller,et al.  The Next 50 Years: What's Next for the Grid? , 2014, IEEE Power and Energy Magazine.

[13]  Stephen P. Boyd,et al.  Fast Model Predictive Control Using Online Optimization , 2010, IEEE Transactions on Control Systems Technology.

[14]  Yibing Liu,et al.  A Fully Distributed Reactive Power Optimization and Control Method for Active Distribution Networks , 2014, IEEE Transactions on Smart Grid.

[15]  Federico Delfino,et al.  Optimal Control and Operation of Grid-Connected Photovoltaic Production Units for Voltage Support in Medium-Voltage Networks , 2014, IEEE Transactions on Sustainable Energy.

[16]  Kankar Bhattacharya,et al.  Stochastic Optimal Planning of Battery Energy Storage Systems for Isolated Microgrids , 2018, IEEE Transactions on Sustainable Energy.

[17]  Boming Zhang,et al.  An Exact Linearization Method for OLTC of Transformer in Branch Flow Model , 2016, IEEE Transactions on Power Systems.

[18]  Hemanshu R. Pota,et al.  Centralized control of step voltage regulators and energy storage system under high photovoltaic penetration , 2016, 2016 IEEE Innovative Smart Grid Technologies - Asia (ISGT-Asia).

[19]  Shahin Sirouspour,et al.  Optimal Control of Energy Storage in a Microgrid by Minimizing Conditional Value-at-Risk , 2016, IEEE Transactions on Sustainable Energy.

[20]  Felix F. Wu,et al.  Network Reconfiguration in Distribution Systems for Loss Reduction and Load Balancing , 1989, IEEE Power Engineering Review.

[21]  Steven H. Low,et al.  Optimal inverter VAR control in distribution systems with high PV penetration , 2011, 2012 IEEE Power and Energy Society General Meeting.

[22]  Steven H. Low,et al.  Branch Flow Model: Relaxations and Convexification—Part II , 2012 .

[23]  Steven H. Low,et al.  Convex Relaxation of Optimal Power Flow—Part II: Exactness , 2014, IEEE Transactions on Control of Network Systems.

[24]  T. Stoffel,et al.  NREL Solar Radiation Research Laboratory (SRRL): Baseline Measurement System (BMS); Golden, Colorado (Data) , 1981 .

[25]  Noboru Yamada,et al.  Sizing and Analysis of Renewable Energy and Battery Systems in Residential Microgrids , 2016, IEEE Transactions on Smart Grid.

[26]  Sungyun Choi,et al.  Practical Coordination Between Day-Ahead and Real-Time Optimization for Economic and Stable Operation of Distribution Systems , 2018, IEEE Transactions on Power Systems.

[27]  Albert Y. S. Lam,et al.  An Optimal and Distributed Method for Voltage Regulation in Power Distribution Systems , 2012, IEEE Transactions on Power Systems.

[28]  Mohamad Abedini,et al.  A Combination of Evolutionary Algorithm and Game Theory for Optimal Location and Operation of DG from DG Owner Standpoints , 2016, IEEE Transactions on Smart Grid.

[29]  Silvano Martello,et al.  Decision Making under Uncertainty in Electricity Markets , 2015, J. Oper. Res. Soc..

[30]  Steven H. Low,et al.  Branch Flow Model: Relaxations and Convexification—Part I , 2012, IEEE Transactions on Power Systems.

[31]  Jeffrey P. Kharoufeh,et al.  Managing Energy Storage in Microgrids: A Multistage Stochastic Programming Approach , 2018, IEEE Transactions on Smart Grid.

[32]  Jianhui Wang,et al.  MPC-Based Voltage/Var Optimization for Distribution Circuits With Distributed Generators and Exponential Load Models , 2014, IEEE Transactions on Smart Grid.

[33]  David J. Hill,et al.  Multi-Timescale Coordinated Voltage/Var Control of High Renewable-Penetrated Distribution Systems , 2017, IEEE Transactions on Power Systems.