Hydroelectric power generation system
US-2022235733-A1 · Jul 28, 2022 · US
Hydroelectric power generation system
US2022010764A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022010764-A1 |
| Application number | US-202117482247-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 22, 2021 |
| Priority date | Mar 28, 2019 |
| Publication date | Jan 13, 2022 |
| Grant date | — |
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Abstract
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A hydroelectric power generation system includes a water turbine, a generator connected to the water turbine, and a controller. The water turbine is arranged in a flow path through which a fluid flows. The controller performs a pressure control by controlling the generator to regulate a pressure of the fluid downstream of the water turbine. The pressure control includes a first control regulating the pressure in parallel with a regenerative operation of the generator, and a second control regulating the pressure in parallel with a power running operation of the generator.
First claim
Opening claim text (preview).
1 . A hydroelectric power generation system comprising: a water turbine arranged in a flow path through which a fluid flows; a generator connected to the water turbine; and a controller configured to perform a pressure control by controlling the generator to regulate a pressure of the fluid downstream of the water turbine, the pressure control including a first control regulating the pressure in parallel with a regenerative operation of the generator, and a second control regulating the pressure in parallel with a power running operation of the generator. 2 . The hydroelectric power generation system of claim 1 , wherein the controller is configured to perform the pressure control by controlling the generator so that the pressure of the fluid downstream of the water turbine converges to a target pressure. 3 . The hydroelectric power generation system of claim 1 , further comprising: a motor-operated valve arranged in series with the water turbine in the flow path. 4 . The hydroelectric power generation system of claim 3 , wherein the controller is configured to perform the pressure control by controlling the motor-operated valve so that an operating point of the water turbine converges to a normal operating region. 5 . The hydroelectric power generation system of claim 3 , wherein pressure regulation using the generator has higher responsiveness than pressure regulation using the motor-operated valve. 6 . The hydroelectric power generation system of claim 3 , further comprising: a bypass channel that bypasses the water turbine and the motor-operated valve; and a decompression valve arranged in the bypass channel, the decompression valve regulating an opening degree to bring the pressure to a predetermined value. 7 . The hydroelectric power generation system of claim 2 , further comprising: a motor-operated valve arranged in series with the water turbine in the flow path. 8 . The hydroelectric power generation system of claim 7 , wherein the controller is configured to perform the pressure control by controlling the motor-operated valve so that an operating point of the water turbine converges to a normal operating region. 9 . The hydroelectric power generation system of claim 4 , wherein pressure regulation using the generator has higher responsiveness than pressure regulation using the motor-operated valve. 10 . The hydroelectric power generation system of claim 4 , further comprising: a bypass channel that bypasses the water turbine and the motor-operated valve; and a decompression valve arranged in the bypass channel, the decompression valve regulating an opening degree to bring the pressure to a predetermined value. 11 . The hydroelectric power generation system of claim 5 , further comprising: a bypass channel that bypasses the water turbine and the motor-operated valve; and a decompression valve arranged in the bypass channel, the decompression valve regulating an opening degree to bring the pressure to a predetermined value.
Assignees
Inventors
Classifications
Using a generator as a motor · CPC title
Hydro energy · CPC title
Outlet · CPC title
Output power or torque · CPC title
with retroactive action · CPC title
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Frequently asked questions
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- What does patent US2022010764A1 cover?
- A hydroelectric power generation system includes a water turbine, a generator connected to the water turbine, and a controller. The water turbine is arranged in a flow path through which a fluid flows. The controller performs a pressure control by controlling the generator to regulate a pressure of the fluid downstream of the water turbine. The pressure control includes a first control regulati…
- Who is the assignee on this patent?
- Daikin Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification F03B13/00. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Jan 13 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 9 related publications on this page (citations in our corpus or others sharing the same primary CPC).