Modular Multilevel Matrix Converter（MMMC） has the advantage of modularization

which can realize the three-phase AC-AC conversion

and can be used in high-voltage and high-power situations. However

when the number of modules in the MMMC is even

the traditional carrier phase-shift modulation strategy will cause the output voltage of two H-bridge submodules on the bridge arm to overlap 100%

so that the H-bridge sub-module on the bridge arm cannot be used efficiently. On the other hand

the total output level of the H-bridge sub-module on the bridge arm will also be sharply reduced

which makes the MMMC work inefficient. To solve the above problems

this paper proposes a new modulation strategy

which is called dual-carrier modulation strategy that can solve this problem and greatly improve the output effect of MMMC. Through theoretical analysis

derivation and simulation comparison of two modulation strategies on MATLAB/Simulink simulation platform

it is verified that when the number of modules of MMMC is even

under the same conditions

the output effect of new modulation strategy is better than that of traditional modulation

and the new modulation strategy can achieve the same effect as the traditional modulation strategy in half modules. Therefore

the new modulation strategy is more economical and of greater practical value.