从基本守恒方程出发，以多孔介质毛细管束模型为基础，建立了回热式热机回热器的有源热声网络模型，并且根据网络理论及热声理论对有源热声网络模型中源项的特性进行了讨论。 Starting from the basic conservation equation and based on porous capillary tube bundle model, an active thermoacoustic network model of regenerative heat engine regenerator was established. According to the network theory and thermoacoustic theory, the source terms of the active thermoacoustic network model The features are discussed.