Turbomachine Anti-Surge System

Abstract

The subject matter of this specification can be embodied in, among other things, a compressor anti-surge system that includes a first actuator configured to actuate a first valve of a first turbomachine, and a first controller at least partially integrated with the first actuator or the first valve, and comprising circuitry configured to perform at least one of a control operation or a protection operation for the first turbomachine.

What is claimed is: 
     
         1 . A compressor anti-surge system comprising:
 a first actuator configured to actuate a first valve of a first turbomachine; and   a first controller at least partially integrated with the first actuator or the first valve, and comprising circuitry configured to perform at least one of a control operation or a protection operation for the first turbomachine.   
     
     
         2 . The compressor anti-surge system of  claim 1 , wherein the first actuator is configured to actuate the first valve through a mechanical coupler or a fluid circuit. 
     
     
         3 . The compressor anti-surge system of  claim 1 , further comprising a first field sensor configured to sense a first turbomachine parameter of the first turbomachine; wherein the first controller is further configured to receive the first turbomachine parameter from the first field sensor and perform at least one of a control operation or a protection operation for the first turbomachine, based at least in part on the received first turbomachine parameter. 
     
     
         4 . The compressor anti-surge system of  claim 1 , wherein the valve is a sliding stem turbomachinery control valve, rotary turbomachinery control valve, or a guide vane. 
     
     
         5 . The compressor anti-surge system of  claim 1 , further comprising an integral or adjacent heat exchanger in fluid communication with the valve and configured to cool fluids that are passed through the valve. 
     
     
         6 . The compressor anti-surge system of  claim 1 , wherein:
 the first controller further comprises a first communication port and is configured to provide controller operations information through the first communications port;   a second actuator configured to actuate a second valve of a second turbomachine; and   a second controller at least partially integrated with the second actuator or the second valve, a second communication port configured to communicate with the first communication port and receive controller operations information, and comprising circuitry configured to perform at least one of a control operation or a protection operation for the second turbomachine, based at least in part on the received controller operations information.   
     
     
         7 . The compressor anti-surge system of  claim 1 , wherein:
 the first controller further comprises a first communication port and is configured to provide controller operations information through the first communications port;   a second actuator configured to actuate a second valve of the first turbomachine; and   a second controller at least partially integrated with the second actuator or the second valve, a second communication port configured to communicate with the first communication port and receive controller operations information, and comprising circuitry configured to perform at least one of a control operation or a protection operation for the first turbomachine, based at least in part on the received controller operations information.   
     
     
         8 . A method of responding to compressor surge comprising:
 receiving, at a first controller at least partially integrated with a first valve and from a first field sensor, a first turbomachine parameter of a first turbomachine;   determining, by the first controller, at least one of a control operation or a protection operation for the first turbomachine, based at least in part on the received first turbomachine parameter; and   actuating, by a first actuator at least partially integrated with the first valve or the first controller, the first valve to perform the determined control operation or protection operation for the first turbomachine.   
     
     
         9 . The method of  claim 8 , wherein the first actuator is configured to actuate the first valve through a mechanical coupler or a fluid circuit. 
     
     
         10 . The method of  claim 8 , wherein the valve is a sliding stem turbomachinery control valve, rotary turbomachinery control valve, or a guide vane. 
     
     
         11 . The method of  claim 8 , wherein at least one of the control operation or the protection operation for the first turbomachine comprises actuating the first valve to control flow of fluids to an integral or adjacent heat exchanger in fluid communication with the valve and configured to cool fluids that are passed through the valve. 
     
     
         12 . The method of  claim 8 , further comprising:
 providing, by the first controller, controller operations information through a first communications port;   receiving, at a second communications port of a second controller at least partially integrated with a second valve of a second turbomachine or a second actuator configured to actuate the second valve, the controller operations information; and   actuating, by the second actuator, the second valve to perform at least one of a control operation or a protection operation for the second turbomachine, based at least in part on the received controller operations information.   
     
     
         13 . The method of  claim 8 , further comprising:
 providing, by the first controller, controller operations information through a first communications port;   receiving, at a second communications port of a second controller at least partially integrated with a second valve of the first turbomachine or a second actuator configured to actuate the second valve, the controller operations information; and   actuating, by the second actuator, the second valve to perform at least one of a control operation or a protection operation for the first turbomachine, based at least in part on the received controller operations information.