The principle of single-phase four-quadrant converter and its predictive current control strategy were studied.

Research and simulation on the control strategy of 4-quadrant converter;

A dynamic small signal model,transfer function and steady state model as concerns ac-side current amplitude and dc-side output voltage were derived from the state space averaging model of the 4-quadrant converter by using linearization processing for its multivariable,time-variability and nonlinearity.

Based on analyzing single phase two-level and three-level 4-quadrant converter’s principle, the mathematic model of ideal switch function is established, the principle of SPWM is introduced.

Simulation study on transient current control of four quadrant converter;

Computer simulation of 3 level four quadrant converter;

In the actual application,large transformer impendence exists in four quadrant converter.

Circuit and control of 100 kW 4qs converter;

Calculation of the input voltage in the 4qs converter;

A new type 4 quadrant converter ——Topology,modeling and simulation;

This paper presents the state space averaging model of a 4 quadrant converter, on the basis of which a series of valuable formulas are deaived and many conclusions are drewn after theoretical analyses.

This article puts forward a plan to control the four-quadrant converter system by using a kind of single-chip microcomputer: 8098, and gives the testing waveform.