An Efficient Method to Estimate Admittance of Black-boxed Inverter-based Resources for Varying Operating Points

Weihua Zhou; Bin Liu; Nabil Mohammed; Behrooz Bahrani

doi:10.17775/CSEEJPES.2023.07090

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An Efficient Method to Estimate Admittance of Black-boxed Inverter-based Resources for Varying Operating Points

Regular Papers | 更新时间：2026-10-15

- An Efficient Method to Estimate Admittance of Black-boxed Inverter-based Resources for Varying Operating Points
- An Efficient Method to Estimate Admittance of Black-boxed Inverter-based Resources for Varying Operating Points
- 中国电机工程学会电力与能源系统学报(英文) 2024年10卷第1期页码：421-426
- 作者机构：
  
  1. Department of Electrical and Computer Systems Engineering, Monash University,Melbourne,Australia
  2. Energy Centre, Commonwealth Scientific and Industrial Research Organisation (CSIRO),Newcastle,Australia
  3. Division Transgrid, He is now with the Network Planning,Sydney,Australia
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2023.07090
  中图分类号：
- 纸质出版：2024-01-01
- 稿件说明：
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Weihua Zhou, Bin Liu, Nabil Mohammed, 等. An Efficient Method to Estimate Admittance of Black-boxed Inverter-based Resources for Varying Operating Points[J]. 中国电机工程学会电力与能源系统学报(英文), 2024,10(1):421-426.

Weihua Zhou, Bin Liu, Nabil Mohammed, et al. An Efficient Method to Estimate Admittance of Black-boxed Inverter-based Resources for Varying Operating Points[J]. CSEE Journal of Power and Energy Systems, 2024, 10(1): 421-426.
Weihua Zhou, Bin Liu, Nabil Mohammed, 等. An Efficient Method to Estimate Admittance of Black-boxed Inverter-based Resources for Varying Operating Points[J]. 中国电机工程学会电力与能源系统学报(英文), 2024,10(1):421-426. DOI： 10.17775/CSEEJPES.2023.07090.

Weihua Zhou, Bin Liu, Nabil Mohammed, et al. An Efficient Method to Estimate Admittance of Black-boxed Inverter-based Resources for Varying Operating Points[J]. CSEE Journal of Power and Energy Systems, 2024, 10(1): 421-426. DOI： 10.17775/CSEEJPES.2023.07090.

摘要

Abstract

Traditional analytical approaches for stability assessment of inverter-based resources (IBRs)

often requiring detailed knowledge of IBR internals

become impractical due to IBRs' proprietary nature. Admittance measurements

relying on electromagnetic transient simulation or laboratory settings

are not only time-intensive but also operationally inflexible

since various non-linear control loops make IBRs' admittance models operating-point dependent. Therefore

such admittance measurements must be performed repeatedly when operating point changes. To avoid time-consuming and cumbersome measurements

admittance estimation for arbitrary operating points is highly desirable. However

existing admittance estimation algorithms usually face challenges in versatility

data demands

and accuracy. Addressing this challenge

this letter presents a simple and efficient admittance estimation method for black-boxed IBRs

by utilizing a minimal set of seven operating points to solve a homogeneous linear equation system. Case studies demonstrate this proposed method ensures high accuracy across various types of IBRs. Estimation accuracy is satisfying even when non-negligible measurement errors exist.

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