Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Hierarchical Control of Utility-Scale Solar PV Plants for Mitigation of Generation Variability and Ancillary Service Provision

Journal Article · · IEEE Transactions on Sustainable Energy
 [1];  [2];  [1]
  1. Univ. of Colorado, Boulder, CO (United States); National Renewable Energy Lab. (NREL), Golden, CO (United States)
  2. Univ. of Colorado, Boulder, CO (United States)

This paper presents a hierarchical control system to mitigate the variability of solar photovoltaic (PV) power plant and provide ancillary services to the electric grid without the need for additional non-solar resources. With coordinated management of each inverter in the system, the control system commands the power plant to proactively curtail a small fraction of its instantaneous maximum power potential, which gives the plant enough headroom to ramp up production from the overall power plant, for a service such as regulation reserve. This control system is practical for continuously changing cloud cover conditions in partially cloudy days. A case study from a site in Hawaii with one-second resolution solar irradiance data is used to verify the efficacy of the proposed control system. The proposed control algorithm is subsequently compared with the alternative control technology from the literature, the grouping control algorithm; the results show that the proposed hierarchical control system is over 10 times more effective in reducing generator mileage to support power fluctuations from solar PV power plants.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
AC36-08GO28308
OSTI ID:
1854589
Report Number(s):
NREL/JA-6A40-82364; MainId:83137; UUID:808a0f9e-769f-47ba-80df-4e9f4729fa45; MainAdminID:64024
Journal Information:
IEEE Transactions on Sustainable Energy, Journal Name: IEEE Transactions on Sustainable Energy Journal Issue: 3 Vol. 13; ISSN 1949-3029
Publisher:
IEEECopyright Statement
Country of Publication:
United States
Language:
English

References (25)

Model predictive control of microgrids for real-time ancillary service market participation journal July 2020
Integration of energy storage with hybrid solar power plants journal October 2018
Ancillary services and optimal household energy management with photovoltaic production☆ journal January 2010
A sizing-validation approach to hybrid power system design and planning journal September 2020
Hybrid power systems – An effective way of utilising primary energy sources journal November 2009
Operation, sizing, and economic evaluation of storage for solar and wind power plants journal June 2016
Stability and control of power systems with high penetrations of inverter-based resources: An accessible review of current knowledge and open questions journal November 2020
Optimal Sizing and Design of Hybrid Power Systems journal January 2018
Hybrid operation strategy of wind energy storage system for power grid frequency regulation journal February 2016
Deployment of energy storages for ancillary services conference May 2014
Investing in Renewable Energy: Reconciling Regional Policy With Renewable Energy Growth journal December 2018
Power Sharing Based Control of Hybrid Wind-Diesel Standalone Systems conference July 2019
Hybrid Power Control System and Its Application conference October 2006
Estimating potential revenue from electrical energy storage in PJM conference July 2016
Small-Signal Stability Analysis of an Autonomous Hybrid Renewable Energy Power Generation/Energy Storage System Part I: Time-Domain Simulations journal March 2008
Management Strategy for Market Participation of Photovoltaic Power Plants Including Storage Systems journal September 2016
Sizing Study of Second Life Li-ion Batteries for Enhancing Renewable Energy Grid Integration journal November 2016
Mixed-Integer Algorithm for Optimal Dispatch of Integrated PV-Storage Systems journal January 2019
Forecasting-Based Power Ramp-Rate Control Strategies for Utility-Scale PV Systems journal March 2019
Co-Optimization of Storage System Sizing and Control Strategy for Intelligent Photovoltaic Power Plants Market Integration journal October 2016
Power mileage-based allocation and dispatch strategy of battery energy storage system conference November 2019
pvlib python: a python package for modeling solar energy systems journal September 2018
Advanced Grid-Friendly Controls Demonstration Project for Utility-Scale PV Power Plants report January 2016
Demonstration of Essential Reliability Services by a 300-MW Solar Photovoltaic Power Plant report March 2017
Oahu Solar Measurement Grid (1-Year Archive): 1-Second Solar Irradiance; Oahu, Hawaii (Data) dataset January 2010