A simulation model for start-up and shutdown of hydropower units with different frequency regulation capacities in the frequency regulation market
A frequency modulation capacity and simulation model technology, applied in design optimization/simulation, electrical components, circuit devices, etc., can solve problems such as large secondary frequency modulation capacity, start-up and shutdown, economic benefits or adverse effects on equipment safety, etc., to reduce operating personnel Burden and effect of reducing the amount of computation
Active Publication Date: 2022-07-08
HUANENG LANCANG RIVER HYDROPOWER
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Problems solved by technology
Since the adjustable capacity of the secondary frequency regulation of the power station is objectively constrained by complex conditions such as the number of units available in the power station (including generating units and standby units), planned active power set value, generating water head, and dynamic combination of operating areas, so if the power station When participating in the bidding of the frequency regulation market, if the declared secondary frequency regulation capacity is too large, it is very likely that the secondary frequency regulation will not be available, the units frequently pass through the vibration area, too many units operate in the restricted operation area for a long time, frequent start-up and shutdown, etc. Serious adverse effects on economic benefits or equipment safety
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[0028]The present invention will be described in further detail below with reference to the accompanying drawings, which are to explain rather than limit the present invention.
[0029] see figure 1 , a start-stop simulation model of hydropower units with different frequency regulation capacities in the frequency regulation market. The simulation parameters received by the simulation model include: units with intelligent start-stop function at each time point, unit start-stop priority, and each unit operating area. Scope and planned active setpoints;
[0030] Based on the operating status of all units currently put into intelligent shutdown and shutdown, the operating conditions after changing the startup and shutdown status of a unit are used as a startup and shutdown strategy;
[0031] According to the active power planning curve, the planned active power setting value is generated at fixed intervals, and a vector P representing the planned total active power setting value ...
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The invention discloses the start and stop simulation models of hydropower units with different frequency regulation capacities in the frequency regulation market. Based on the current operating state of the unit, it is compared with various operating conditions after one machine is turned on or one machine is stopped, so as to avoid In order to solve the problem that the solution range is too divergent, assuming that k units are put into the intelligent start-stop function, the present invention only applies to k+1 kinds of working conditions (k kinds of working conditions in which one of the k units changes the start-stop state in sequence, And all the units do not change the operating conditions of the on-off state) for comparison. On the one hand, the present invention can automatically start and stop the unit in the actual power generation operation to reduce the burden on operators; The intelligent start and stop operation generates the simulation sequence state of the unit start and stop.
Description
technical field [0001] The invention relates to the technical field of hydroelectric power generation automation, and relates to a simulation model for start-up and shutdown of hydroelectric units with different frequency regulation capacities in the frequency regulation market. Background technique [0002] At present, most of the unit start-up and shutdown operations of hydropower stations are automatically completed by the programmable logic controller (PLC) of the local control unit (LCU) of the computer monitoring system through the preset sequence control process without human intervention. The automatic start-stop function greatly reduces the workload of the operator, eliminates the possibility of human error operation, and improves the success rate of start-up and shutdown, but the operator still needs to manually trigger the start-up process or the shutdown process, so there are the following problems: [0003] 1) The remote centralized control of multiple hydropowe...
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IPC IPC(8): G06F30/20H02J3/46H02J3/48G06F113/04
CPCG06F30/20H02J3/48H02J3/466H02J2203/20G06F2113/04Y04S10/50
Inventor 胡林
Owner HUANENG LANCANG RIVER HYDROPOWER