Mixed active power supply filter

The utility model relates to a hybrid active power filter. The utility model is designed to solve the problems that the present hybrid active power filters are not provided with the effective control capacity and the overload rejection ability to the compensation current, and the operation safety and the adoption to load variation are greatly influenced. The advantages of the prior hybrid active power filter are kept, and at the same time, the utility model has the ability to control the compensation current. The structure of the hybrid active power filter is that a filter branch is composed of an active power filter and a passive power filter in series, and the branch is connected with a nonlinear load which needs to be filtered in parallel. The hybrid active power filter also comprises a source current detector I and a compensation current detector II. One end of the current detector I is connected with the input circuit of the power network, and the other end is connected with the active power filter. One end of the current detector II is connected with the filter circuit, and the other end is connected with the active power filter.