Constant power loads and negative impedance instability in automotive systems: definition, modeling, stability, and control of power electronic converters and motor drives

By Ali Emadi, Alireza Khaligh, C. Rivetta, G. Williamson. IEEE Transactions on Vehicular Technology, 2006

887 citations recorded by the source corpus.

Subfields: Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/9f7a6bb1bb862565f4e6568dbaf4995113452560

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Electrical and Electronic Engineering

Citations in the corpus

Large Signal Stability Analysis Tools in DC Power Systems With Constant Power Loads and Variable Power Loads—A Review (2012, background): “This case is the most frequent one in the literature [6], [7], [9], [20], [35]–[39].”
Modeling and Analysis of VSC-Based HVDC Systems for DC Network Stability Studies (2016, background): “Examples are dc microgrids where converters acting as constant power loads introduce instability [3].”
Review on Advanced Control Technologies for Bidirectional DC/DC Converters in DC Microgrids (2020, methodology): “Numerous control strategies have been proposed for stabilizing dc/dc converters loaded by CPLs, like virtual resistors [5], [6], virtual capacitors [7], virtual impedance [8], pole placement methods [4], loop cancellation approaches [9], and so on.”
Constant power loads and their effects in DC distributed power systems: A review (2017, background): “[88], have presented a simple SMC for a dc/dc buck converter which ensures supply of constant power to the load.”
A Novel Composite Nonlinear Controller for Stabilization of Constant Power Load in DC Microgrid (2019, background): “CPLs are known to have negative impedance characteristics, which may destabilize the DC bus and consequently, the whole system [1], [5], [7].”
Modeling and Stability Analysis of Islanded DC Microgrids Under Droop Control (2015, background): “Therefore, POL converters behave as CPLs, because the control action reduces the input current if the input voltage increases and vice versa [22]–[24], [26].”
Active Damping in DC/DC Power Electronic Converters: A Novel Method to Overcome the Problems of Constant Power Loads (2009, background): “CPLs exhibit negative incremental resistance, which tends to destabilize the power system [4]–[7].”
A Nonlinear-System Approach to Analysis and Design of Power-Electronic Converters With Saturation and Bilinear Terms (2011, background): “Although switched-mode power conversion is a well-established technology and numerous high-performance power-electronic converters have been constructed by neglecting these nonlinearities, there are still continuing research efforts devoted toward better understanding the theory behind the actual no”