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Intelligent voltage regulation scheme of active distribution networks with renewable energy integration

Intelligent voltage regulation scheme of active distribution networks with renewable energy integration

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Voltage regulation plays an important role in maintaining modern power systems reliable and secure operations. A distributed voltage control scheme for distribution networks with high renewable penetration is proposed and the numerical simulations are conducted on modified IEEE 15 -bus and 43 -bus radial distribution systems to validate the effectiveness of the proposed method. The simulation results show that (1) the proposed voltage regulation strategy can well adjust the BESSs' outputs while maintaining the bus voltages within the secure range while considering renewable energy and load uncertainties; and (2) D-ADMM algorithm has a strong capability for performing global optimization and has faster convergence ability than the original ADMM algorithm.

Chapter Contents:

  • 13.1 Introduction
  • 13.1.1 Increasing penetration of renewable energy and associated new challenges to power systems
  • 13.1.2 Voltage control in distribution networks with integration of renewable energy sources
  • 13.1.3 Categories of voltage regulation methods
  • 13.1.4 Optimization techniques in active distribution networks
  • 13.1.5 Voltage control with BESS in distribution networks
  • 13.2 System structure and problem formulation
  • 13.2.1 Scenario generation
  • 13.2.1.1 Modeling of renewable energy and load uncertainties
  • 13.2.1.2 Scenario generation and reduction
  • 13.2.2 Problem formulation
  • 13.2.2.1 Objective function
  • 13.2.2.2 Constraints
  • 13.2.2.3 Estimation of voltage profiles in distribution network
  • 13.3 D-ADMM-based solving approach
  • 13.3.1 Network communication and notations
  • 13.3.2 Distributed voltage control based on D-ADMM
  • 13.3.2.1 Problem formulation
  • 13.3.2.2 Voltage control based on D-ADMM
  • 13.4 Case study
  • 13.4.1 Simulation setup
  • 13.4.2 15-bus radial distribution system
  • 13.4.3 43-bus radial distribution system
  • 13.5 Conclusion
  • References

Inspec keywords: voltage control; convergence of numerical methods; power distribution control; power distribution reliability; power system security; battery storage plants; renewable energy sources; distributed control; intelligent control; optimisation

Other keywords: reliable operation; load uncertainties; global optimization; renewable energy integration; secure operation; BESS; active distribution networks; modified IEEE 43 -bus radial distribution system; ADMM algorithm; convergence; intelligent voltage regulation scheme; modified IEEE 15 -bus radial distribution system; D-ADMM algorithm; numerical simulation

Subjects: Other power stations and plants; Distribution networks; Multivariable control systems; Optimisation techniques; Voltage control; Control of electric power systems; Energy resources; Power system control; Optimisation techniques; Other numerical methods; Reliability; Other numerical methods

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