초록 ▼

A stability control algorithm is provided for a centrifugal compressor. The stability control algorithm is used to control a variable geometry diffuser and a hot gas bypass valve (when provided) in response to the detection of compressor instabilities. The stability control algorithm can adjust the

A stability control algorithm is provided for a centrifugal compressor. The stability control algorithm is used to control a variable geometry diffuser and a hot gas bypass valve (when provided) in response to the detection of compressor instabilities. The stability control algorithm can adjust the position of a diffuser ring in the variable geometry diffuser in response to the detection of a surge condition or a stall condition. The diffuser ring in the variable geometry diffuser can be adjusted to determine an optimal position of the diffuser ring. The stability control algorithm can also be used to open a hot gas bypass valve in response to the detection of continued surge conditions.

대표청구항 ▼

What is claimed is: 1. A control system to maintain stable operation of a compressor comprising:at least one first control state configured to close a flow passage of a diffuser of the compressor in response to detecting one of a stall condition or a surge condition in the compressor;a second contro

What is claimed is: 1. A control system to maintain stable operation of a compressor comprising:at least one first control state configured to close a flow passage of a diffuser of the compressor in response to detecting one of a stall condition or a surge condition in the compressor;a second control state configured to open the flow passage of the diffuser of the compressor in response to determining an absence of a stall condition or a surge condition; andthe second control state being prevented from engagement in response to being in the at least one first control state.