Stable running control method of water pumping energy storage unit
A pumped-storage unit and operation control technology, applied in instruments, data processing applications, calculations, etc., can solve problems such as invalid instructions, delaying the timing of grid balance, and inability to generate electricity.
Inactive Publication Date: 2018-07-06
山东诺源动力设备有限公司
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Problems solved by technology
[0003] The control method of the existing pumped storage unit is relatively simple, and there is no comprehensive consideration of all aspects that restrict the safe and stable operation of the pumped storage unit, resulting in a large discrepancy between the dispatch order and the actual operation. When the power generation command is issued, the unit can no longer generate power, which makes the command invalid and delays the opportunity to adjust the balance of the power grid
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[0030] Such as figure 1 As shown, it is a schematic diagram of a method for controlling the stable operation of a pumped storage unit, and the method includes:
[0031] (1) Judging the operating status of the pumped storage unit according to the unbalanced power grid;
[0032] (2) Control the safe and stable operation of the pumped storage unit according to the power generation operation status or pumping operation status.
[0033] When the power output in the grid is less than the load demand, it is judged that the pumped storage unit should be in the power generation operation state; when the power output in the grid is greater than the load demand, it is judged that the pumped storage unit should be in the pumping operation state.
[0034] When the pumped storage unit is in the power generation state, perform the following steps:
[0035] 1) Detect the water level and storage capacity of the upper and lower reservoirs at the scheduled time and send the detection results t...
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The invention discloses a stable running control method of a water pumping energy storage unit. The method comprises the steps of 1, according to grid electrical imbalance conditions, judging the running state which the water pumping energy storage unit should be in; 2, controlling the water pumping energy storage unit to safely and stably run according to the power generation running state or thewater pumping state. By means of the stable running control method of the water pumping energy storage unit, by monitoring conditions of the water pumping energy storage unit, an upper reservoir anda lower reservoir, interaction between the unit and dispatching is achieved, instructions of dispatching are received, emergency self-control is also achieved, then it can be achieved that the water pumping energy storage unit itself is stable in real time, and an adjusting opportunity is prevented from being retarded.
Description
technical field [0001] The invention belongs to the technical field of power supply and distribution, in particular to a control method capable of realizing stable operation of a pumped storage unit. Background technique [0002] The pumped storage unit is different from the ordinary generator set. It can not only output power as a power source, but also store electricity as a load. The stable operation of the pumped storage unit depends on the coordinated action of the generator and the turbine. Therefore, compared with ordinary generating units, the operating conditions of pumped storage units are more complicated, and it is necessary to consider the output of pumped storage units, that is, the operation of the generator, and the hydraulic control, that is, the operation of the turbine. The condition of the reservoir also needs to be considered. [0003] The control method of the existing pumped storage unit is relatively simple, and there is no comprehensive consideratio...
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IPC IPC(8): H02J3/28G06Q10/06G06Q50/06
Inventor 不公告发明人
Owner 山东诺源动力设备有限公司