Control system for hydraulically powered AC generator
First Claim
1. A valve system for controlling flow of a fluid to a hydraulically powered alternating current (AC) generator, the valve system comprising:
- a first flow path comprising a fixed valve configured to provide a substantially constant flow rate of the fluid through the fixed valve to a common fluid output to reach the hydraulically powered AC generator; and
a second flow path comprising a variable valve configured to provide a variable flow rate of the fluid through the variable valve to the common fluid output to reach the hydraulically powered AC generator;
wherein a flow rate of the fluid output from the common fluid output to drive the hydraulically powered AC generator includes a sum of the substantially constant flow rate of the fluid and the variable flow rate of the fluid, and wherein the variable valve provides control of a portion of the fluid output from the common fluid output to control an electrical output of the hydraulically powered AC generator.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems and methods for use in controlling a hydraulically powered AC generator are provided. One control system includes a valve system. The valve system includes a fixed valve configured to provide a substantially constant flow rate of the fluid through the fixed valve to the hydraulically powered AC generator. The valve system further includes a variable valve configured to provide a variable flow rate of the fluid through the variable valve to the hydraulically powered AC generator. The control system further includes a sensor device configured to measure a speed of movement of a component of the hydraulically powered AC generator. The control system further includes a control circuit configured to control the variable flow rate of the variable valve based on the speed of movement of the component measured by the sensor device.
-
Citations
26 Claims
-
1. A valve system for controlling flow of a fluid to a hydraulically powered alternating current (AC) generator, the valve system comprising:
-
a first flow path comprising a fixed valve configured to provide a substantially constant flow rate of the fluid through the fixed valve to a common fluid output to reach the hydraulically powered AC generator; and a second flow path comprising a variable valve configured to provide a variable flow rate of the fluid through the variable valve to the common fluid output to reach the hydraulically powered AC generator; wherein a flow rate of the fluid output from the common fluid output to drive the hydraulically powered AC generator includes a sum of the substantially constant flow rate of the fluid and the variable flow rate of the fluid, and wherein the variable valve provides control of a portion of the fluid output from the common fluid output to control an electrical output of the hydraulically powered AC generator. - View Dependent Claims (2, 3, 4, 5, 6, 25)
-
-
7. A control system for controlling flow of a fluid to a hydraulically powered alternating current (AC) generator, the control system comprising:
-
a sensor device configured to measure a speed of movement of a component of the hydraulically powered AC generator; and a control circuit configured to generate a control signal based on the speed of movement of the component measured by the sensor device, wherein the control circuit is further configured to transmit the control signal to a control device configured to control a variable flow rate of the fluid output to the hydraulically powered AC generator by a variable valve, wherein the variable valve is paralleled with a fixed valve for the fluid to reach the hydraulically powered AC generator, wherein the fixed valve provides a substantially constant flow rate of the fluid output to the hydraulically powered AC generator, wherein a flow rate of the fluid to drive the hydraulically powered AC generator includes a sum of the substantially constant flow rate of the fluid and the variable flow rate of the fluid, and wherein the variable valve provides control of a portion of the fluid output from the common fluid output to control an electrical output of the hydraulically powered AC generator. - View Dependent Claims (8, 9, 10, 11, 12, 13)
-
-
14. A hydraulically powered generator system comprising:
-
a hydraulically powered alternating current (AC) generator configured to generate output power based on flow of a fluid to the hydraulically powered AC generator; a valve system comprising; a first flow path comprising a fixed valve configured to provide a substantially constant flow rate of the fluid through the fixed valve to a common fluid output to reach the hydraulically powered AC generator; and a second flow path comprising a variable valve configured to provide a variable flow rate of the fluid through the variable valve to the common fluid output to reach the hydraulically powered AC generator; wherein a flow rate of the fluid output from the common fluid output to drive the hydraulically powered AC generator includes a sum of the substantially constant flow rate of the fluid and the variable flow rate of the fluid, and wherein the variable valve provides control of a portion of the fluid output from the common fluid output to control an electrical output of the hydraulically powered AC generator, a sensor device configured to measure a speed of movement of a component of the hydraulically powered AC generator; and a control circuit configured to control the variable flow rate of the variable valve based on the speed of movement of the component measured by the sensor device to compensate for changes in one or more operating conditions of the hydraulically powered AC generator, wherein the one or more operating conditions comprise at least one of a load, a temperature, a pressure, or a pump input speed of the hydraulically powered AC generator. - View Dependent Claims (15, 16, 17, 18, 19, 26)
-
-
20. A control system for controlling flow of a fluid to a hydraulically powered alternating current (AC) generator, the control system comprising:
-
a speed measurement module configured to measure a speed of movement of a component of the hydraulically powered AC generator; and a control module configured to generate a control signal based on the speed of movement of the component measured by the speed measurement module, wherein the control module is further configured to transmit the control signal to a control device configured to control a variable flow rate of the fluid output to the hydraulically powered AC generator by a variable valve, wherein the variable valve is paralleled with a fixed valve for the fluid to reach the hydraulically powered AC generator, wherein the fixed valve provides a substantially constant flow rate of the fluid output to the hydraulically powered AC generator, wherein a flow rate of the fluid to drive the hydraulically powered AC generator includes a sum of the substantially constant flow rate of the fluid and the variable flow rate of the fluid, and wherein the variable valve provides control of a portion of the fluid output from the common fluid output to control an electrical output of the hydraulically powered AC generator. - View Dependent Claims (21, 22, 23, 24)
-
Specification