Automatic power generation control-based water pumping and energy storage unit automatic startup-shutdown control method

A technology of automatic power generation control and pumped storage unit, applied in the direction of AC network load balancing, single-network parallel feeding arrangement, etc., can solve the problems affecting the safe operation of the power grid, etc., to ensure the safety of frequency operation, reduce work pressure, and avoid telephone exchanges. Effect

Inactive Publication Date: 2018-01-16
CHINA SOUTHERN POWER GRID COMPANY
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AI Technical Summary

Problems solved by technology

When the networked lines or large units trip due to faults and other

Method used

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Embodiment

[0052] The automatic start-stop control method of the pumped-storage unit based on automatic power generation control of the present invention comprises the following steps:

[0053] (1) Expand the model of the automatic power generation control system, and add the basic model of the pumped storage unit participating in the automatic power generation control.

[0054] The basic control model of the pumped storage unit mainly includes the following parameters:

[0055] ① Data cycle: The cycle of data functions such as actual output and command feedback is 3s.

[0056] ②Execution cycle: The cycle of issuing the power-on capacity value. The power-on capacity value automatically generated according to the abnormal frequency is not limited by the cycle. The default is 1 minute.

[0057] ③Plan cycle: the interval of sampling points of the energy storage power plant planning curve. Since the planning curve is collected from the EMS system (Energy Management System, electric energy ...

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Abstract

The invention discloses an automatic power generation control-based water pumping and energy storage unit automatic startup-shutdown control method. The control method comprises the following steps of(1) performing expansion of automatic power generation control system models, and adding a water pumping and energy storage unit basic control model; (2) setting the water pumping and energy storageunit basic control model; (3) calculating an automatic startup-shutdown control instruction, wherein the control instruction is a startup capacity value; and (4) performing safety verification on thestartup capacity value, and issuing the startup capacity value after verification is passed. By issuing remote signaling on the main station side, working condition conversion, comprising startup andshutdown, of the water pumping and energy storage unit can be realized, troublesome phone communication by a dispatcher can be avoided, and work pressure can be relieved; in addition, the backup and frequency control levels of the power grid and the day-ahead power generation plan arrangement and dispatcher human decision making can be taken into comprehensive consideration according to the operation condition of the power grid; and therefore, the number of startup and pump starting times and opportunity of a water pumping and energy storage power plant can be changed automatically, and the peak shaving and frequency modulating characteristics of the water pumping and energy storage power plant can be given into full play, thereby ensuring frequency operation safety of the power grid.

Description

technical field [0001] The invention relates to the field of automatic control of electric power systems, in particular to an automatic start-stop control method of a pumped-storage unit based on automatic power generation control. Background technique [0002] The pumped storage unit has the characteristics of quick start and fast loading speed. Even if it is in a static state and encounters an emergency, it can also be fully loaded within a few minutes. In the case of pumping water, the pumped storage power station provides an ideal emergency backup. In the event of an accident in the system, the operation of the water pump can be stopped immediately to reduce the power supply load of the system. Therefore, the pumped storage power station is a special power source with multiple functions such as peak regulation, valley filling, frequency regulation, phase regulation, emergency backup and black start. Running plays an important role. [0003] At present, most pumped stor...

Claims

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Application Information

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IPC IPC(8): H02J3/46H02J3/28
Inventor 周华锋胡荣刘爱梅吴继平聂涌泉李雷于昌海徐瑞
Owner CHINA SOUTHERN POWER GRID COMPANY
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