Real-time dispatchable region of renewable generation constrained by reactive power and voltage profiles in AC power networks

Yanqi Liu; Zhigang Li; Q. H. Wu; Haibo Zhang

doi:10.17775/CSEEJPES.2019.01620

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Real-time dispatchable region of renewable generation constrained by reactive power and voltage profiles in AC power networks

Regular Papers | 更新时间：2026-10-15

- Real-time dispatchable region of renewable generation constrained by reactive power and voltage profiles in AC power networks
- Real-time dispatchable region of renewable generation constrained by reactive power and voltage profiles in AC power networks
- 中国电机工程学会电力与能源系统学报(英文) 2020年6卷第3期页码：528-536
- 作者机构：
  
  1. School of Electric Power Engineering, South China University of Technology,Guangzhou,China
  2. State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University,Beijing,China
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2019.01620
  中图分类号：
- 纸质出版：2020-09-01
- 稿件说明：
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Yanqi Liu, Zhigang Li, Q. H. Wu, 等. Real-time dispatchable region of renewable generation constrained by reactive power and voltage profiles in AC power networks[J]. 中国电机工程学会电力与能源系统学报(英文), 2020,6(3):528-536.

Yanqi Liu, Zhigang Li, Q. H. Wu, et al. Real-time dispatchable region of renewable generation constrained by reactive power and voltage profiles in AC power networks[J]. CSEE Journal of Power and Energy Systems, 2020, 6(3): 528-536.
Yanqi Liu, Zhigang Li, Q. H. Wu, 等. Real-time dispatchable region of renewable generation constrained by reactive power and voltage profiles in AC power networks[J]. 中国电机工程学会电力与能源系统学报(英文), 2020,6(3):528-536. DOI： 10.17775/CSEEJPES.2019.01620.

Yanqi Liu, Zhigang Li, Q. H. Wu, et al. Real-time dispatchable region of renewable generation constrained by reactive power and voltage profiles in AC power networks[J]. CSEE Journal of Power and Energy Systems, 2020, 6(3): 528-536. DOI： 10.17775/CSEEJPES.2019.01620.

摘要

Abstract

A large amount of renewable energy generation (REG) has been integrated into power systems

challenging the operational security of power networks. In a real-time dispatch

system operators need to estimate the ability of the power network to accommodate REG with a limited reserve capacity. The real-time dispatchable region (RTDR) is defined as the largest range of a power injection that the power network can accommodate in a certain dispatch interval for a given dispatch base point. State-of-the-art research on the RTDR adopts a DC power flow model regardless of the voltage profiles and reactive power

which can overlook potentially insecure operational states of the system. To address this issue

this paper proposes an AC power flow based RTDR model simultaneously considering the reactive power and voltage profiles constraints. The nonlinear constraints in our model are approximated using a linear power flow model together with a polytope approximation technique for quadratic constraints. An adaptive constraint generation algorithm is used to calculate the RTDR. Simulation results using the IEEE 5-bus and 30-bus systems illustrate the advantages of the proposed model.

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