阅读说明：本技术 一种抽水蓄能机组agc直控功能控制方法 (AGC direct control function control method for pumped storage unit ) 是由 张江丰 周建宅 苏烨 孙坚栋 郑可轲 卢敏 陈世红 潘学忠 丁伟聪 陈巍文 华丽 于 2021-09-09 设计创作，主要内容包括：本发明为一种抽水蓄能机组AGC直控功能控制方法,属于抽水蓄能机组控制领域,针对现有技术的问题,采用技术方案如下：一种抽水蓄能机组AGC直控功能控制方法,通过AGC功能模块实现,具体操作过程包括：步骤1,初始化AGC功能模块参数,并设定所述AGC功能模块的闭锁条件；步骤2,分别获取各个抽水蓄能机组的运行工况；步骤3,基于未控制抽水蓄能机组的运行工况,判断待控制抽水蓄能机组的运行工况,根据接收到的调度侧下发的AGC负荷指令发出指令,调整待控制抽水蓄能机组的状态；步骤4,更换待控制抽水蓄能机组和未控制抽水蓄能机组,并返回步骤2。本申请能够简单且准确有效地实现抽水蓄能机组AGC智控功能的控制。(The invention discloses an AGC direct control function control method for a pumped storage unit, which belongs to the field of pumped storage unit control and aims at the problems in the prior art, and adopts the following technical scheme: an AGC direct control function control method for a pumped storage unit is realized through an AGC function module, and the specific operation process comprises the following steps: step 1, initializing AGC function module parameters and setting locking conditions of the AGC function module; step 2, respectively acquiring the operation conditions of the pumped storage units; step 3, judging the operation condition of the pumped storage unit to be controlled based on the operation condition of the uncontrolled pumped storage unit, sending an instruction according to the received AGC load instruction sent by the dispatching side, and adjusting the state of the pumped storage unit to be controlled; and 4, replacing the pumped storage unit to be controlled and the uncontrolled pumped storage unit, and returning to the step 2. The control of the AGC intelligent control function of the pumped storage unit can be simply, accurately and effectively realized.)

1. An AGC direct control function control method for a pumped storage unit is characterized by being realized through an AGC function module, and comprising the following specific operation processes:

step 1, initializing AGC function module parameters and setting locking conditions of the AGC function module to ensure that each pumped storage unit is in an AGC controllable regulation state;

step 2, determining one unit as a pumped storage unit to be controlled and the other unit as an uncontrolled pumped storage unit, and respectively acquiring the operating conditions of the pumped storage units;

step 3, judging the operation condition of the pumped storage unit to be controlled based on the operation condition of the uncontrolled pumped storage unit, sending out a shutdown, startup and working condition conversion instruction according to the received AGC load instruction issued by the dispatching side, and adjusting the state of the pumped storage unit to be controlled:

step 3.1, judging whether the uncontrolled pumped storage unit is in a stable state, if not, keeping the current working condition of the pumped storage unit to be controlled; if yes, executing step 3.2;

step 3.2, judging whether the pump storage unit which is not controlled is in a shutdown state, if not, executing the step 3.3; if so, acquiring the operation condition of the pumped storage unit to be controlled:

step 3.2.1, when the pumped storage unit to be controlled is in a transient state, ending the adjustment;

step 3.2.2, when the pumped storage unit to be controlled is in a power generation working condition and a stop permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to be 0MW, and stopping the pumped storage unit to be controlled;

step 3.2.3, when the pumped storage unit to be controlled is in a power generation working condition and a power generation to pumping permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to follow the first AGC load instruction, so that the pumped storage unit to be controlled generates power and pumps water;

step 3.2.4, when the pumped storage unit to be controlled is in a stop working condition and a power generation permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to follow a second AGC load instruction, so that the pumped storage unit to be controlled generates power;

step 3.2.5, when the pumped storage unit to be controlled is in a shutdown working condition and a pumping permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to follow the first AGC load instruction, so that the pumped storage unit to be controlled pumps water;

step 3.2.6, when the pumped storage unit to be controlled is in a pumping working condition and a stop permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to be 0MW, and stopping the pumped storage unit to be controlled;

step 3.2.7, when the pumped storage unit to be controlled is in a pumping working condition and a pumping-to-power generation permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to follow a second AGC load instruction, so that the pumped storage unit to be controlled pumps and generates power;

3.3, judging whether the pump storage unit which is not controlled is in a power generation state, and if not, executing the step 3.4; if so, acquiring the operation condition of the pumped storage unit to be controlled:

step 3.3.1, when the pumped storage unit to be controlled is in a power generation working condition and a stop permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to be 0MW, and stopping the pumped storage unit to be controlled;

step 3.3.2, when the pumped storage unit to be controlled is in a shutdown working condition and a power generation permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to follow a second AGC load instruction, so that the pumped storage unit to be controlled generates power;

step 3.4, judging whether the water pumping energy storage unit which is not controlled is in a water pumping state, if not, returning to the step 1, and judging again; if so, acquiring the operation condition of the pumped storage unit to be controlled:

step 3.4.1, when the pumped storage unit to be controlled is in a pumping working condition and a shutdown permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to be 0MW, and enabling the pumped storage unit to be controlled to be shutdown;

step 3.4.2, when the pumped storage unit to be controlled is in a shutdown condition and a pumping permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to follow the first AGC load instruction, so that the pumped storage unit to be controlled pumps water;

and 4, changing the pumped storage group to be controlled into a new uncontrolled pumped storage group, changing the uncontrolled pumped storage group into a new pumped storage group to be controlled, and returning to the step 2.

2. The pumped-storage group AGC direct control function control method according to claim 1, wherein the first AGC load command is a pumped-storage load command with a value of-48 MW.

3. The pumped-storage unit AGC direct control function control method according to claim 1, wherein the second AGC load command is a power generation load command in a range of [23,45] MW.

4. The pumped storage group AGC direct control function control method according to claim 1, wherein in step 1, the lockout condition is:

(1) the LCU of each pumped storage unit is in a normal state;

(2) each pumped storage unit has no accident;

(3) each pumped storage unit is in an automatic tracking and adjusting state;

(4) and each pumped storage unit is in a normal communication state.

5. The pumped storage group AGC direct control function control method according to claim 1, wherein in step 3.3, the process of determining whether the received AGC load instruction issued by the dispatching side falls within the AGC adjustment range is:

(a) receiving AGC load instruction issued by dispatching side

(b) Safety checking of the pumped storage unit to be controlled;

(c) acquiring a load adjusting range of a pumped storage unit to be controlled;

(d) and (c) comparing whether the AGC load instruction issued by the dispatching side is in the load adjusting range of the step (b).

Technical Field

The invention belongs to the field of pumped storage unit control, and particularly relates to an AGC direct control function control method for a pumped storage unit.

Background

The pumped storage power station has complex operation conditions, different conditions can be converted only when meeting certain conditions, different units cannot allow mutually exclusive working conditions, the pumped storage power station AGC needs to consider various safety, boundary conditions and other limiting factors to be more complex than that of a conventional hydropower station, the AGC scheduling layer of a common pumped storage unit is controlled in a whole station grouping mode, the communication data volume of the hydropower station and the AGC master station server at the scheduling side can be reduced, and meanwhile, the safety locking logic of the scheduling side on pumped AGC control is greatly simplified. In addition, new energy photovoltaic power stations are removed from the power market in Zhejiang province, and the quotation units of each power generation enterprise in the market are all each unit, so that the stream pumped storage needs to be involved in the power market for building a high-elasticity power grid, and the stream pumped storage power station has great practical significance and urgency for realizing the AGC direct control function. The AGC direct control function of the pumped storage power station is realized, the key point is that the AGC master station control mode is changed as little as possible, and various locking conditions related to safe operation of the pumped storage power station must be followed. The existing control method can not realize that a scheduling side directly controls a specific pumped storage unit and an AGC master station directly distributes load to the pumped storage unit.

In summary, how to provide a control method for the AGC direct control function of the pumped storage unit to achieve remote automatic control of the pumped storage unit under the AGC mode under complex conditions such as power generation startup, power generation shutdown, pumped startup, pumped shutdown, power generation-to-pumped-water, pumped-to-power generation, and the like is a problem to be solved urgently by those skilled in the art.

Disclosure of Invention

Aiming at the problem that the existing method can not directly control the working condition of the pumped storage unit by issuing a control instruction through an AGC dispatching side, the invention provides the AGC direct control function control method of the pumped storage unit, which can simply and effectively realize that the dispatching side directly controls the specific pumped storage unit.

The technical scheme adopted by the invention is as follows: an AGC direct control function control method for a pumped storage unit is realized through an AGC function module, and the specific operation process comprises the following steps:

step 1, initializing AGC function module parameters and setting locking conditions of the AGC function module to ensure that each pumped storage unit is in an AGC controllable regulation state;

step 2, determining one unit as a pumped storage unit to be controlled and the other unit as an uncontrolled pumped storage unit, and respectively acquiring the operating conditions of the pumped storage units;

step 3, judging the operation condition of the pumped storage unit to be controlled based on the operation condition of the uncontrolled pumped storage unit, sending out a shutdown, startup and working condition conversion instruction according to the received AGC load instruction issued by the dispatching side, and adjusting the state of the pumped storage unit to be controlled:

step 3.1, judging whether the uncontrolled pumped storage unit is in a stable state, if not, keeping the current working condition of the pumped storage unit to be controlled; if yes, executing step 3.2;

step 3.2, judging whether the pump storage unit which is not controlled is in a shutdown state, if not, executing the step 3.3; if so, acquiring the operation condition of the pumped storage unit to be controlled:

step 3.2.1, when the pumped storage unit to be controlled is in a transient state, ending the adjustment;

step 3.2.2, when the pumped storage unit to be controlled is in a power generation working condition and a stop permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to be 0MW, and stopping the pumped storage unit to be controlled;

step 3.2.3, when the pumped storage unit to be controlled is in a power generation working condition and a power generation to pumping permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to follow the first AGC load instruction, so that the pumped storage unit to be controlled generates power and pumps water;

step 3.2.4, when the pumped storage unit to be controlled is in a stop working condition and a power generation permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to follow a second AGC load instruction, so that the pumped storage unit to be controlled generates power;

step 3.2.5, when the pumped storage unit to be controlled is in a shutdown working condition and a pumping permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to follow the first AGC load instruction, so that the pumped storage unit to be controlled pumps water;

step 3.2.6, when the pumped storage unit to be controlled is in a pumping working condition and a stop permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to be 0MW, and stopping the pumped storage unit to be controlled;

step 3.2.7, when the pumped storage unit to be controlled is in a pumping working condition and a pumping-to-power generation permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to follow a second AGC load instruction, so that the pumped storage unit to be controlled pumps and generates power;

3.3, judging whether the pump storage unit which is not controlled is in a power generation state, and if not, executing the step 3.4; if so, acquiring the operation condition of the pumped storage unit to be controlled:

step 3.3.1, when the pumped storage unit to be controlled is in a power generation working condition and a stop permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to be 0MW, and stopping the pumped storage unit to be controlled;

step 3.3.2, when the pumped storage unit to be controlled is in a shutdown working condition and a power generation permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to follow a second AGC load instruction, so that the pumped storage unit to be controlled generates power;

step 3.4, judging whether the water pumping energy storage unit which is not controlled is in a water pumping state, if not, returning to the step 1, and judging again; if so, acquiring the operation condition of the pumped storage unit to be controlled:

step 3.4.1, when the pumped storage unit to be controlled is in a pumping working condition and a shutdown permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to be 0MW, and enabling the pumped storage unit to be controlled to be shutdown;

step 3.4.2, when the pumped storage unit to be controlled is in a shutdown condition and a pumping permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the pumped storage unit to be controlled to follow the first AGC load instruction, so that the pumped storage unit to be controlled pumps water;

and 4, changing the pumped storage group to be controlled into a new uncontrolled pumped storage group, changing the uncontrolled pumped storage group into a new pumped storage group to be controlled, and returning to the step 2.

Further, the first AGC load instruction is a water pumping load instruction, and the value of the first AGC load instruction is-48 MW.

Further, the second AGC load command is a power generation load command, which ranges from [23,45] MW.

Further, in step 1, the lockout condition is:

(1) the LCU of each pumped storage unit is in a normal state;

(2) each pumped storage unit has no accident;

(3) each pumped storage unit is in an automatic tracking and adjusting state;

(4) and each pumped storage unit is in a normal communication state.

The blocking condition is set, so that each pumped storage unit can track the instruction of the AGC function module, and effective regulation and control are realized.

Further, the process of judging whether the received AGC load instruction issued by the scheduling side falls into the AGC adjustment range is as follows:

(a) receiving AGC load instruction issued by dispatching side

(b) Safety checking of the pumped storage unit to be controlled;

(c) acquiring a load adjusting range of a pumped storage unit to be controlled;

(d) and (c) comparing whether the AGC load instruction issued by the dispatching side is in the load adjusting range of the step (b).

The invention has the following beneficial effects: the AGC direct control function control method for the pumped storage unit can realize direct control of the unit on the dispatching side without greatly changing the existing control system, and can simply and effectively realize direct control of the specific pumped storage unit on the dispatching side, so the method is simple and effective and can also save the control cost.

Drawings

FIG. 1 is a schematic flow chart of an embodiment;

FIG. 2 is a diagram of AGC power generation startup of the unit No. 1;

FIG. 3 is a graph of AGC power generation shutdown of the unit No. 1;

FIG. 4 is a diagram of AGC water pumping startup of the No. 1 unit;

FIG. 5 is a diagram of AGC water pumping shutdown of the No. 1 unit;

FIG. 6 is a diagram of AGC power generation-to-pumping water curves of the No. 1 unit;

FIG. 7 is a diagram of the AGC pumped forwarding power of set No. 1;

FIG. 8 is a 25MW-40MW load-up curve diagram for AGC generation of No. 1 unit;

FIG. 9 is a graph of AGC 40MW-25MW load shedding for unit No. 1.

Detailed Description

The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.

In this embodiment, a Ning-storage power station is taken as an example, two pumped storage groups are adopted, and an AGC direct control function control method for a pumped storage group of this embodiment is implemented by an AGC function module as shown in FIG. 1, and the specific operation process includes:

step 1, initializing AGC function module parameters and setting locking conditions of the AGC function module to ensure that each pumped storage unit is in an AGC controllable regulation state; the locking conditions are as follows:

(1) the LCU of the No. 1 pumped storage unit is in a normal state;

(2) no. 1 pumped storage unit has no accident;

(3) the No. 1 pumped storage unit is in an automatic tracking and adjusting state;

(4) the communication of the No. 1 pumped storage unit is in a normal state;

step 2, determining the unit No. 1 as a pumped storage unit to be controlled, determining the unit No. 2 as an uncontrolled pumped storage unit, and respectively acquiring the operating conditions of the pumped storage units;

step 3, judging the operation condition of the No. 1 unit based on the operation condition of the No. 2 unit, sending out a shutdown, startup and working condition conversion instruction according to the received AGC load instruction issued by the dispatching side, and adjusting the state of the No. 1 unit:

step 3.1, judging whether the No. 2 unit is in a stable state, if not, keeping the No. 1 unit in the current working condition; if yes, executing step 3.2;

step 3.2, judging whether the unit No. 2 is in a shutdown state, if not, executing the step 3.3; if yes, obtaining the operation condition of the No. 1 unit:

step 3.2.1, when the unit No. 1 is in a transient state, finishing the adjustment;

step 3.2.2, when the No. 1 unit is in a power generation working condition and a stop permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the No. 1 unit to be 0MW to stop the No. 1 unit;

step 3.2.3, when the No. 1 unit is in a power generation working condition and a power generation to water pumping permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the No. 1 unit to follow a first AGC load instruction (namely a water pumping load instruction, and the value is-48 MW), so that the No. 1 unit generates power and pumps water;

step 3.2.4, when the machine set No. 1 is in a stop working condition and a power generation permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the machine set No. 1 to follow a second AGC load instruction (namely a power generation load instruction, and the value is [23,45] MW), so that the machine set No. 1 generates power; .

Step 3.2.5, when the unit 1 is in a shutdown working condition and a water pumping permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the unit 1 to follow a first AGC load instruction (namely a water pumping load instruction, the value is-48 MW) so that the unit 1 pumps water;

step 3.2.6, when the No. 1 unit is in a water pumping working condition and a stop permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the No. 1 unit to be 0MW to stop the No. 1 unit;

step 3.2.7, when the machine set No. 1 is in a water pumping working condition and a water pumping to power generation permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the machine set No. 1 to follow a second AGC load instruction (namely a power generation load instruction, and the value is [23,45] MW), so that the machine set No. 1 pumps water to generate power;

step 3.3, judging whether the No. 2 unit is in a power generation state, if not, executing step 3.4; if yes, obtaining the operation condition of the No. 1 unit:

step 3.3.1, when the No. 1 unit is in a power generation working condition and a stop permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the No. 1 unit to be 0MW to stop the No. 1 unit;

step 3.3.2, when the No. 1 unit is in a shutdown working condition and a power generation permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the No. 1 unit to follow a second AGC load instruction (namely a power generation load instruction, and the value is [23,45] MW), so that the No. 1 unit generates power;

step 3.4, judging whether the No. 2 engine group is in a water pumping state, if not, returning to the step 1, and judging again; if yes, obtaining the operation condition of the No. 1 unit:

step 3.4.1, when the No. 1 unit is in a water pumping working condition and a shutdown permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the No. 1 unit to be 0MW to stop the No. 1 unit;

step 3.4.2, when the unit No. 1 is in a shutdown working condition and a water pumping permission state, after judging that the received AGC load instruction issued by the dispatching side falls into an AGC regulation range, adjusting the load of the unit No. 1 to follow a first AGC load instruction (namely a water pumping load instruction, the value is-48 MW), so that the unit No. 1 pumps water;

step 4, changing the No. 1 set into a new No. 2 set, changing the No. 2 set into a new No. 1 set, returning to the step 2, controlling the No. 2 set, and changing the locking condition into a new one

(1) The LCU of the No. 2 pumped storage unit is in a normal state;

(2) no. 2 pumped storage unit has no accident;

(3) the No. 2 pumped storage unit is in an automatic tracking and adjusting state;

(4) and the No. 2 pumped storage unit is in a normal state in communication.

The blocking condition is set, so that each pumped storage unit can track the instruction of the AGC function module, and effective regulation and control are realized.

When the pumped storage unit to be controlled is the unit No. 1 and the pumped storage unit not to be controlled is the unit No. 2, the process of judging whether the received AGC load instruction issued by the dispatching side falls into the AGC regulation range is as follows:

(a) receiving AGC load instruction issued by dispatching side

(b) The number 1 unit is safely checked;

(c) acquiring a load adjusting range of the No. 1 unit;

(d) and (c) comparing whether the AGC load instruction issued by the dispatching side is in the load adjusting range of the step (b), and if not, judging again.

When the pumped storage unit to be controlled is the unit No. 2 and the pumped storage unit not to be controlled is the unit No. 1, the process of judging whether the received AGC load instruction issued by the dispatching side falls into the AGC regulation range is as follows:

(a) receiving AGC load instruction issued by dispatching side

(b) The number 2 unit is safely checked;

(c) acquiring the load adjusting range of the No. 2 unit;

(d) and (c) comparing whether the AGC load instruction issued by the dispatching side is in the load adjusting range of the step (b), and if not, judging again.

And the judgment of the allowable state is AGC automatic judgment:

when the machine set No. 2 is in a shutdown state, then the machine set No. 1 is in a shutdown state, and the machine set No. 1 is in a power generation permission state and a water pumping permission state;

when the machine set No. 2 is in a shutdown state, then the machine set No. 1 is in a power generation state, and the machine set No. 1 is transferred to a water pumping permission state and a shutdown permission state;

when the machine set No. 2 is in a shutdown state, then the machine set No. 1 is in a water pumping state, the machine set No. 1 is sent to a shutdown permission state, and the water pumping is converted into a power generation permission state;

when the No. 2 unit is in a power generation state, the No. 1 unit is in a shutdown state, and the No. 1 unit is in a power generation permission state;

when the No. 2 unit is in a power generation state, the No. 1 unit is in a power generation state, and the No. 1 unit is sent to a stop permission state;

when the machine set No. 2 is in a water pumping state, the machine set No. 1 is in a shutdown state, and the machine set No. 1 is in a water pumping permission state;

when the No. 2 unit is in a water pumping state, then, the No. 1 unit is in a water pumping state, and the No. 1 unit is sent to the halt permission state.

One set is in a power generation state, and the other set cannot be in a water pumping state; one set is in a water pumping state, and the other set cannot be in a power generation state.

The states of the No. 1 unit are respectively tested and specific numerical values and a curve chart are recorded so as to visually see that the method can realize the adjustment state in a short time, and the method can prove that the method can realize effective control on the premise of not greatly modifying an AGC control instruction, and is favorable for saving the control cost.

Table 1 is a table of recording the results of the AGC power generation start-up test of the No. 1 unit, and the corresponding graph is fig. 2.

TABLE 1

Table 2 is a table of recording the test results of the AGC power generation stop of the No. 1 unit, and the corresponding graph is fig. 3.

TABLE 2

Table 3 is a table of recording the results of the AGC pumping start-up test of the No. 1 unit, and the corresponding graph is fig. 4.

TABLE 3

Table 4 is a table of recording the results of the AGC pumping shutdown test of the No. 1 unit, and the corresponding graph is fig. 5.

TABLE 4

Table 5 is a table of results of the AGC power generation to pumping test of the No. 1 unit, and the corresponding graph is fig. 6.

TABLE 5

Table 6 is a table of test results of the AGC pumping to power generation test of the No. 1 unit, and the corresponding graph is fig. 7.

TABLE 6

Table 7 is a table of records of the test results of the AGC power generation function of the unit No. 1, and the corresponding curves are fig. 8 and 9.

TABLE 7

While the invention has been described with reference to specific embodiments, the scope of the invention is not limited thereto, and those skilled in the art will appreciate that the invention includes, but is not limited to, the accompanying drawings and the description of the embodiments above. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.