Dynamic modeling of a VSC-HVDC converter

Abstract

The aim of this paper is to present a nonlinear dynamic model for Voltage Source Converter-based HVDC (VSC-HVDC) links that can be used for dynamic studies. It includes the main physical elements and is controlled by PI controllers with antiwindup. A linear control model is derived for efficient tuning of the controllers of the nonlinear dynamic model. The nonlinear dynamic model is then tuned according to the performance of an ABB HVDC Light model.

Small-Signal Stability Analysis of Interaction Modes in VSC MTDC Systems with Voltage Margin Control

“…The lossless time-averaged dynamic model of the two-level pulse width modulation (PWM) VSC converter was taken and adjusted from References [14,15]. Detailed electromagnetic modeling of electronic devices is not necessary for the purposes of electromechanical studies.…”

“…Inverter q-component of current is calculated using an output of DC voltage outer loop dc I and equation 3. More details upon modeling of VSC control can be found in [14].…”

Modular modelling of combined AC and DC systems in dynamic simulations

“…The five AC/DC converters, of the VSC type, are modeled in detail, as recommended in [3], [9], [12]. The TWF converter imposes constant voltage and frequency on the AC side, thus acting as a slack bus.…”

Multi-terminal HVDC control strategies applied to the Cigré B4 DC Grid Test System

“…The underlying model and the cascaded converter control scheme similar to [8], [9] and the coupling of AC and DC side, see [7], is explained in the following three subsections and backed by the most important formulas.…”

“…The implemented converter model relies on a merged generalized VSC model jfrom different sources and own modifications. It is mainly derived from a proposal briefly outlined in [7] and influenced by [8] and [9]. While elementary DC droop control strategies are briefly summarized, the most sophisticated methods are analytically formulated.…”