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Pumped storage unit stability controller
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A technology of pumped storage units and controllers, which is applied in the direction of electric energy storage systems, electrical components, AC network load balancing, etc. It can solve problems such as water levels exceeding dams, surrounding floods, and inability to implement instructions, etc., to achieve easy execution and meet safety requirements Effect
Inactive Publication Date: 2018-03-27
佛山市洛克威特科技有限公司
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Problems solved by technology
[0003] The existing control device is not designed for the characteristics of the pumped storage unit itself, nor does it take into account the impact of the actual water level on the operation of the pumped storage unit, which will lead to instructions that cannot be realized, such as requiring the pumped storage unit to generate electricity , but actually the pumped storage unit is unable to generate electricity due to lack of water resources, and there will be instructions that may cause surrounding floods, such as requiring the pumped storage unit to generate electricity, but in reality, the continuous power generation due to excessive water storage will cause The water level exceeds the embankment causing flooding of the surrounding environment
Method used
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Embodiment 1
[0013] See figure 1 .
[0014] A stability controller for a pumped storage unit, the controller comprising:
[0015] A detector for detecting the water level;
[0016] A data preprocessing device, used for processing the data detected by the detector;
[0017] AD converter, which converts the processed data into a value that can be read by the microcontroller;
[0018] The micro-controller realizes the control of the operating conditions of the unit according to the real-time value converted by the AD converter.
[0019] The water level refers to the water level of the reservoir. There are two reservoirs in the pumped storage power station, one is the upper reservoir and the other is the lower reservoir. A chiller usually includes multiple chillers with different rated capacities. Various methods are used to measure the water level to make the measurement results accurate, such as the upper computer water level monitoring system, hydraulic observation professional networ...
Embodiment 2
[0022] A stability controller for a pumped storage unit, characterized in that the controller includes:
[0023] A detector for detecting the water level, specifically:
[0024] The first detector is used to detect the water level of the upper reservoir;
[0025] The second detector is used to detect the water level of the lower reservoir;
[0026] A data preprocessing device, used for processing the data detected by the detector;
[0027] AD converter, which converts the processed data into a value that can be read by the microcontroller;
[0028] The microcontroller receives the real-time value U of the water level of the upper reservoir and the real-time value L of the water level of the lower reservoir converted by the AD converter; when the primary warning water level of the low water level of the upper reservoir UL1
Embodiment 3
[0030] The difference from the second embodiment is that when the microcontroller implements immediate control of a unit in the pumping / power generation condition to stop running, it is necessary to select the unit with the largest rated capacity.
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Abstract
The invention discloses a pumped storage unit stability controller, which comprises a detector, a data preprocessing device, an AD converter and a microcontroller, wherein the detector is used for detecting a water level; the data preprocessing device is used for processing data detected by the detector; the AD converter converts processed data into numerical values which can be read by the microcontroller; and the microcontroller realizes control over unit operation working conditions according to the real-time numerical values converted by means of the AD converter. The pumped storage unit stability controller considers real-time water level situations of actual upper and lower water reservoirs, can satisfy the balance of supply and demand of a power system, and can ensure that the waterlevels of the upper and lower water reservoirs are always at reasonable levels, thereby guaranteeing safety of a power plant, and protecting the surrounding natural ecological environment.
Description
technical field [0001] The invention relates to a stability controller for a pumped storage unit, in particular to a stability controller for a pumped storage unit capable of balancing the supply and demand of electric power and the stability of the natural environment. Background technique [0002] The pumped storage unit is the key to peak regulation and frequency regulation of the power system, and its safe and stable operation is extremely important. The output of ordinary generator sets is only limited by its rated output, and the degree of power demand of ordinary loads is only limited by its rated power. However, in the actual operation of the pumped storage unit, not only its rated output or power as a generator or load must be considered, but it is also affected by its own construction environment and restricted by the reservoir that makes its operation work. [0003] The existing control device is not designed for the characteristics of the pumped storage unit its...
Claims
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Application Information
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