WO2015188293A1 - Primary frequency modulation control method and apparatus for dynamic adjustment based on characteristic of valve flow - Google Patents
Primary frequency modulation control method and apparatus for dynamic adjustment based on characteristic of valve flow Download PDFInfo
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- WO2015188293A1 WO2015188293A1 PCT/CN2014/001057 CN2014001057W WO2015188293A1 WO 2015188293 A1 WO2015188293 A1 WO 2015188293A1 CN 2014001057 W CN2014001057 W CN 2014001057W WO 2015188293 A1 WO2015188293 A1 WO 2015188293A1
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- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
- H02J3/241—The oscillation concerning frequency
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- the proportional coefficient when the coefficient is too large, the excessive frequency modulation is likely to cause unstable operation of the generator set. When the coefficient is too small, the frequency modulation is too small to meet the requirements of the power grid. And the flow characteristics of the valve during operation are not completely linear, especially in the forward valve mode. Due to the non-linearity of the valve flow characteristics, the proportional coefficient is appropriate under some valve positions, and the proportional coefficient added cannot meet the requirements under some valve positions.
- a frequency modulation command carrying a frequency modulation amount having a proportional amplification factor of A2 is transmitted.
- the sending module is configured to send the FM command according to the characteristic state of the valve flow when the grid frequency fluctuates.
- FIG. 3 is a schematic diagram of an apparatus for primary frequency modulation control based on dynamic adjustment of valve flow characteristics according to an embodiment of the present invention.
- control system of the grid-connected genset determines the characteristic state of the valve flow according to the valve opening amount carried in the received feedback message, and the method for determining the characteristic state of the valve flow according to the valve opening amount is due to the prior art The method used in the general, so it will not be elaborated here.
- the characteristic state of the valve flow specifically includes a linear state and a non-linear state.
- the sending module 33 is configured to send a tone according to a characteristic state of the valve flow when the grid frequency fluctuates a frequency command; specifically, when the characteristic state of the valve flow rate is a linear state, transmitting a frequency modulation command carrying a frequency modulation amount with a proportional amplification factor A1; specifically, when the characteristic state of the valve flow rate is a nonlinear state Sending a frequency modulation command carrying a frequency modulation amount with a proportional amplification factor of A2.
- modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or the corresponding changes may be located in one or more apparatuses different from the embodiment.
- the modules of the above embodiments may be combined into one module, or may be further split into multiple sub-modules.
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Abstract
A primary frequency modulation control method and apparatus for dynamic adjustment based on a characteristic of a valve flow. The method comprises the following steps: periodically receiving a feedback message sent by a valve control system (201); determining a characteristic state of a valve flow according to a valve opening degree in the feedback message (202); and when a grid frequency fluctuates, sending a frequency modulation instruction according to the characteristic state of the valve flow, to instruct the valve control system to adjust the valve opening degree (203). It is implemented that when a grid frequency fluctuates, a suitable scale-up coefficient is chosen according to a characteristic of a valve flow, thereby adjusting the valve flow and further satisfying requirements of a grid.
Description
本发明是有关于发电机组一次调频的控制方法，尤其涉及一种基于阀门流量特性动态调整的一次调频控制方法及装置。The invention relates to a control method for primary frequency modulation of a generator set, in particular to a primary frequency modulation control method and device based on dynamic adjustment of valve flow characteristics.
随着电网容量的增大，电网稳定性越来越被重视。一次调频功能是并网运行发电机组在电网频率发生波动时及时自发参与电网稳定调节的功能，先于二次调频(中调指令)，能及时反应电网的微小波动并及时正确回馈电网，具有响应时间短，动作迅速的优点，是保障电网及发电机组安全、高效、稳定运行的重要功能。且由于并网运行机组一次调频功能的投入好坏与否直接影响到电网的安全稳定运行，近年来电网加大了对发电机组一次调频能力的考核力度。As the capacity of the grid increases, the stability of the grid is increasingly valued. The primary frequency modulation function is a function of grid-connected generators to participate in the stable regulation of the grid in time when the grid frequency fluctuates. Before the secondary frequency modulation (intermediate adjustment command), it can respond to the small fluctuations of the grid in time and correctly return to the grid in time. The advantages of short time and quick action are important functions to ensure safe, efficient and stable operation of the power grid and generator set. Moreover, due to the good or bad investment in the frequency-modulated function of the grid-connected operation unit, it directly affects the safe and stable operation of the power grid. In recent years, the power grid has increased the assessment of the primary frequency-modulation capability of the generator set.
虽然现行的发电机组基本都具备一次调频的功能，但其调频能力不尽如人意。目前的一次调频控制方案在调频指令发出到阀门控制前，会根据需要适当加一个比例放大系数。Although the current generator set basically has a frequency modulation function, its frequency modulation capability is not satisfactory. The current FM control scheme will add a proportional amplification factor as needed before the FM command is sent to the valve control.
然而，对于比例放大系数的增加，当系数太大时，调频量过大容易造成发电机组运行的不稳定，当系数太小时，调频量又过小，从而满足不了电网的要求。且机组在运行过程中阀门的流量特性并不是一个完全线性的，尤其是在顺阀运行方式下。由于阀门流量特性的非线性，导致在有的阀位下，加入的比例系数合适，而在有的阀位下，加入的比例系数就不能满足要求。However, for the increase of the proportional amplification factor, when the coefficient is too large, the excessive frequency modulation is likely to cause unstable operation of the generator set. When the coefficient is too small, the frequency modulation is too small to meet the requirements of the power grid. And the flow characteristics of the valve during operation are not completely linear, especially in the forward valve mode. Due to the non-linearity of the valve flow characteristics, the proportional coefficient is appropriate under some valve positions, and the proportional coefficient added cannot meet the requirements under some valve positions.
发明内容Summary of the invention
本发明实施例的目的在于提供一种基于阀门流量特性动态调整的一次调频控制方法及装置，实现了在电网频率发生波动时，根据阀门流量特性来选取合适的比例放大系数，从而调节了阀门流量，进而满足了电网的需求。The object of the embodiments of the present invention is to provide a primary frequency modulation control method and device based on dynamic adjustment of valve flow characteristics, which realizes selecting a proper proportional amplification factor according to valve flow characteristics when the grid frequency fluctuates, thereby adjusting the valve flow rate. In order to meet the needs of the power grid.
为了达到上述目的，本发明实施例提供了一种基于阀门流量特性动态调整的
一次调频控制方法，所述方法包括以下步骤：In order to achieve the above object, an embodiment of the present invention provides a dynamic adjustment based on valve flow characteristics.
A frequency modulation control method, the method comprising the following steps:
周期性接收阀门控制系统发送的反馈消息；Periodically receiving feedback messages sent by the valve control system;
根据反馈消息中的阀门开启量确定阀门流量的特性状态；Determining the characteristic state of the valve flow according to the valve opening amount in the feedback message;
当电网频率发生波动时，When the grid frequency fluctuates,
根据阀门流量的特性状态发送调频指令，指示阀门控制系统调节阀门开启量。The FM command is sent according to the characteristic state of the valve flow, instructing the valve control system to adjust the valve opening amount.
优选地，所述阀门流量的特性状态具体包括线性状态和非线性状态。Preferably, the characteristic state of the valve flow specifically includes a linear state and a non-linear state.
优选地，当所述阀门流量的特性状态为线性状态时，发送携带有比例放大系数为A1的调频量的调频指令。Preferably, when the characteristic state of the valve flow rate is a linear state, a frequency modulation command carrying a frequency modulation amount having a proportional amplification factor of A1 is transmitted.
优选地，当所述阀门流量的特性状态为非线性状态时，发送携带有比例放大系数为A2的调频量的调频指令。Preferably, when the characteristic state of the valve flow rate is a non-linear state, a frequency modulation command carrying a frequency modulation amount having a proportional amplification factor of A2 is transmitted.
本发明实施例还公开了一种基于阀门流量特性动态调整的一次调频控制装置，所述装置包括：The embodiment of the invention also discloses a primary frequency modulation control device based on dynamic adjustment of valve flow characteristics, the device comprising:
接收模块，用于周期性接收阀门控制系统发送的反馈消息；a receiving module, configured to periodically receive a feedback message sent by the valve control system;
确定模块，用于根据反馈消息中的阀门开启量确定阀门流量的特性状态；Determining a module for determining a characteristic state of the valve flow according to a valve opening amount in the feedback message;
发送模块，用于当电网频率发生波动时，根据阀门流量的特性状态发送调频指令。The sending module is configured to send the FM command according to the characteristic state of the valve flow when the grid frequency fluctuates.
优选地，所述阀门流量的特性状态具体包括线性状态和非线性状态。Preferably, the characteristic state of the valve flow specifically includes a linear state and a non-linear state.
优选地，Preferably,
所述发送模块，具体用于当所述阀门流量的特性状态为线性状态时，发送携带有比例放大系数为A1的调频量的调频指令。The sending module is specifically configured to: when the characteristic state of the valve flow is in a linear state, send a frequency modulation command carrying a frequency modulation amount with a proportional amplification factor of A1.
优选地，Preferably,
所述发送模块，具体用于当所述阀门流量的特性状态为非线性状态时，发送携带有比例放大系数为A2的调频量的调频指令。The sending module is specifically configured to: when the characteristic state of the valve flow rate is a non-linear state, send a frequency modulation command carrying a frequency modulation amount with a proportional amplification factor of A2.
现有技术相比，本发明实施例所提出的技术方案具有以下优点：Compared with the prior art, the technical solution proposed by the embodiment of the present invention has the following advantages:
本发明的上述实施例，实现了在电网频率发生波动时，根据阀门流量特性来选取合适的比例放大系数，从而调节了阀门流量，进而满足了电网的需求。
The above embodiment of the invention realizes that when the grid frequency fluctuates, the appropriate proportional amplification factor is selected according to the valve flow characteristic, thereby adjusting the valve flow rate, thereby meeting the demand of the power grid.
图1是本发明实施例所提供的逻辑结构示意图；1 is a schematic diagram of a logical structure provided by an embodiment of the present invention;
图2是本发明实施例所提供的基于阀门流量特性动态调整的一次调频控制的流程示意图；2 is a schematic flow chart of primary frequency modulation control based on dynamic adjustment of valve flow characteristics according to an embodiment of the present invention;
图3是本发明实施例所提供的基于阀门流量特性动态调整的一次调频控制的装置示意图。FIG. 3 is a schematic diagram of an apparatus for primary frequency modulation control based on dynamic adjustment of valve flow characteristics according to an embodiment of the present invention.
下面将结合本发明中的附图，对本发明中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。The technical solutions in the present invention will be clearly and completely described in the following with reference to the accompanying drawings in which: FIG. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
如图1所示，为本发明的逻辑结构示意图。在该示意图中，包括电网频率发生波动的Δf频差模块，控制系统静态特性函数F(X)模块，用于输出比例放大系数A1、A2的模拟量输入模块，切换模块T，阀门控制系统模块以及阀门指令输出模块；频差模块与控制系统静态特性函数F(X)模块的输入端连接，控制系统静态特性函数模块的输出端分别与2个模拟量输入模块的输入端连接，系数为A1的模拟量输入模块与切换模块的第一输入端连接，系数为A2的模拟量输入模块与切换模块的第二输入端连接，切换模块的输出端与阀门指令模块连接。FIG. 1 is a schematic diagram of a logical structure of the present invention. In the schematic diagram, the Δf frequency difference module including the fluctuation of the grid frequency, the static characteristic function F(X) module of the control system, the analog input module for outputting the proportional amplification factors A1 and A2, the switching module T, and the valve control system module And the valve command output module; the frequency difference module is connected with the input end of the static characteristic function F(X) module of the control system, and the output end of the control system static characteristic function module is respectively connected with the input ends of the two analog input modules, the coefficient is A1 The analog input module is connected to the first input end of the switching module, the analog input module with the coefficient A2 is connected to the second input end of the switching module, and the output end of the switching module is connected with the valve command module.
参见图2，为本发明实施例所提供的基于阀门流量特性动态调整的一次调频控制的流程示意图，该流程可包括：2 is a schematic flowchart of a frequency modulation control based on dynamic adjustment of a valve flow characteristic according to an embodiment of the present invention, where the process may include:
步骤201，周期性接收阀门控制系统发送的反馈消息。Step 201: Periodically receive a feedback message sent by the valve control system.
具体的，并网运行发电机组的控制系统定期接收阀门控制系统发送的反馈消息，通过该反馈消息告知并网运行发电机组的控制系统当前阀门的开启量，如当前阀门开启50％。其中，该周期性可以指的是每100ms发送一次反馈消息。Specifically, the control system of the grid-connected generator set periodically receives the feedback message sent by the valve control system, and the feedback message informs the grid-connected operation of the current valve opening of the control system of the generator set, such as the current valve opening 50%. The periodicity may refer to sending a feedback message every 100 ms.
步骤202，根据反馈消息中的阀门开启量确定阀门流量的特性状态。
Step 202: Determine a characteristic state of the valve flow according to the valve opening amount in the feedback message.
具体的，并网运行发电机组的控制系统根据接收到的反馈消息中携带的阀门开启量确定阀门流量的特性状态，对于具体根据阀门开启量确定阀门流量的特性状态的方式，由于是现有技术中所通用的方式，故在此不再做具体阐述。Specifically, the control system of the grid-connected genset determines the characteristic state of the valve flow according to the valve opening amount carried in the received feedback message, and the method for determining the characteristic state of the valve flow according to the valve opening amount is due to the prior art The method used in the general, so it will not be elaborated here.
在本步骤中，阀门流量的特性状态具体包括线性状态和非线性状态。In this step, the characteristic state of the valve flow specifically includes a linear state and a non-linear state.
步骤203，根据阀门流量的特性状态发送调频指令，指示阀门控制系统调节阀门开启量。 Step 203, sending a frequency modulation command according to the characteristic state of the valve flow, instructing the valve control system to adjust the valve opening amount.
在本步骤中，当电网频率发生波动时，并网运行发电机组的控制系统根据阀门流量的特性状态进行调频指令的下发。具体的，当并网运行发电机组的控制系统确定阀门流量处于线性状态时，选取比例放大系数A1，将携带该系数A1的调频量添加到调频指令中，发送给阀门控制系统，指示阀门控制系统对相应的阀门开启量进行合理的增大或减小调节。In this step, when the grid frequency fluctuates, the control system of the grid-connected genset performs the frequency-modulation command according to the characteristic state of the valve flow. Specifically, when the control system of the genset running grid determines that the valve flow is in a linear state, the proportional amplification factor A1 is selected, the frequency modulation carrying the coefficient A1 is added to the FM command, and sent to the valve control system to indicate the valve control system. Reasonably increase or decrease the corresponding valve opening amount.
进一步地，在发送完该携带系数A1的调频指令后，由于会周期接收阀门控制系统发送的反馈消息，当根据该接收到的反馈消息确定该阀门的流量处于非线性状态时，并网运行发电机组的控制系统改变发送的调频指令，选取比例放大系数A2，在该调频指令中添加携带系数A2的调频量，以适应阀门对于电网频率的合理输出。Further, after the frequency modulation command carrying the coefficient A1 is transmitted, since the feedback message sent by the valve control system is periodically received, when the flow rate of the valve is determined to be in a non-linear state according to the received feedback message, the grid is operated to generate electricity. The control system of the unit changes the transmitted FM command, selects the proportional amplification factor A2, and adds the frequency modulation factor carrying the coefficient A2 to the frequency modulation command to adapt to the reasonable output of the valve for the grid frequency.
进一步地，当并网运行发电机组的控制系统根据当前接收到的反馈消息确定阀门的当前开启量符合传输电频量时，即当前阀门开启量正好能够合理的传输电频量，并网运行发电机组的控制系统不再需要向阀门控制系统发送调频指令。Further, when the control system of the grid-connected genset determines that the current opening amount of the valve conforms to the transmission electric quantity according to the currently received feedback message, that is, the current valve opening amount is just enough to reasonably transmit the electric quantity, and the grid is operated to generate electricity. The unit's control system no longer needs to send FM commands to the valve control system.
本实施例中，实现了在电网频率发生波动时，根据阀门流量特性来选取合适的比例放大系数，从而调节了阀门流量，进而满足了电网的需求。In this embodiment, when the grid frequency fluctuates, the appropriate proportional amplification factor is selected according to the valve flow characteristics, thereby adjusting the valve flow rate, thereby meeting the demand of the power grid.
基于与上述方法相同的构思，本发明实施例还提供了一种基于阀门流量特性动态调整的一次调频控制装置，如图3所示，包括：Based on the same concept as the above method, the embodiment of the present invention further provides a primary frequency modulation control device based on dynamic adjustment of valve flow characteristics, as shown in FIG. 3, including:
接收模块31，用于周期性接收阀门控制系统发送的反馈消息；The receiving module 31 is configured to periodically receive a feedback message sent by the valve control system;
确定模块32，用于根据反馈消息中的阀门开启量确定阀门流量的特性状态；a determining module 32, configured to determine a characteristic state of the valve flow according to the valve opening amount in the feedback message;
所述阀门流量的特性状态具体包括线性状态和非线性状态。The characteristic state of the valve flow specifically includes a linear state and a non-linear state.
发送模块33，用于当电网频率发生波动时，根据阀门流量的特性状态发送调
频指令；具体用于当所述阀门流量的特性状态为线性状态时，发送携带有比例放大系数为A1的调频量的调频指令；具体用于当所述阀门流量的特性状态为非线性状态时，发送携带有比例放大系数为A2的调频量的调频指令。The sending module 33 is configured to send a tone according to a characteristic state of the valve flow when the grid frequency fluctuates
a frequency command; specifically, when the characteristic state of the valve flow rate is a linear state, transmitting a frequency modulation command carrying a frequency modulation amount with a proportional amplification factor A1; specifically, when the characteristic state of the valve flow rate is a nonlinear state Sending a frequency modulation command carrying a frequency modulation amount with a proportional amplification factor of A2.
本实施例中，实现了在电网频率发生波动时，根据阀门流量特性来选取合适的比例放大系数，从而调节了阀门流量，进而满足了电网的需求。In this embodiment, when the grid frequency fluctuates, the appropriate proportional amplification factor is selected according to the valve flow characteristics, thereby adjusting the valve flow rate, thereby meeting the demand of the power grid.
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到本发明可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述的方法。Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a A computer device (which may be a personal computer, server, or network device, etc.) performs the methods described in various embodiments of the present invention.
本领域技术人员可以理解附图只是一个优选实施例的示意图，附图中的模块或流程并不一定是实施本发明所必须的。A person skilled in the art can understand that the drawings are only a schematic diagram of a preferred embodiment, and the modules or processes in the drawings are not necessarily required to implement the invention.
本领域技术人员可以理解实施例中的装置中的模块可以按照实施例描述进行分布于实施例的装置中，也可以进行相应变化位于不同于本实施例的一个或多个装置中。上述实施例的模块可以合并为一个模块，也可以进一步拆分成多个子模块。Those skilled in the art can understand that the modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or the corresponding changes may be located in one or more apparatuses different from the embodiment. The modules of the above embodiments may be combined into one module, or may be further split into multiple sub-modules.
上述本发明实施例序号仅仅为了描述，不代表实施例的优劣。The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.
以上公开的仅为本发明的几个具体实施例，但是，本发明并非局限于此，任何本领域的技术人员能思之的变化都应落入本发明的保护范围。
The above disclosure is only a few specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.
Claims (8)
- 一种基于阀门流量特性动态调整的一次调频控制方法，其特征在于，所述方法包括以下步骤：A primary frequency modulation control method based on dynamic adjustment of valve flow characteristics, characterized in that the method comprises the following steps:周期性接收阀门控制系统发送的反馈消息；Periodically receiving feedback messages sent by the valve control system;根据反馈消息中的阀门开启量确定阀门流量的特性状态；Determining the characteristic state of the valve flow according to the valve opening amount in the feedback message;当电网频率发生波动时，根据阀门流量的特性状态发送调频指令，指示阀门控制系统调节阀门开启量。When the grid frequency fluctuates, an FM command is sent according to the characteristic state of the valve flow, instructing the valve control system to adjust the valve opening amount.
- 如权利要求1所述的方法，其特征在于，所述阀门流量的特性状态具体包括线性状态和非线性状态。The method of claim 1 wherein said characteristic state of said valve flow comprises specifically a linear state and a non-linear state.
- 如权利要求2所述的方法，其特征在于，当所述阀门流量的特性状态为线性状态时，发送携带有比例放大系数为A1的调频量的调频指令。The method according to claim 2, wherein when the characteristic state of the valve flow rate is a linear state, a frequency modulation command carrying a frequency modulation amount having a proportional amplification factor of A1 is transmitted.
- 如权利要求2所述的方法，其特征在于，当所述阀门流量的特性状态为非线性状态时，发送携带有比例放大系数为A2的调频量的调频指令。The method according to claim 2, wherein when the characteristic state of the valve flow rate is a non-linear state, a frequency modulation command carrying a frequency modulation amount having a proportional amplification factor of A2 is transmitted.
- 一种基于阀门流量特性动态调整的一次调频控制装置，其特征在于，包括：A primary frequency modulation control device based on dynamic adjustment of valve flow characteristics, characterized in that it comprises:接收模块，用于周期性接收阀门控制系统发送的反馈消息；a receiving module, configured to periodically receive a feedback message sent by the valve control system;确定模块，用于根据反馈消息中的阀门开启量确定阀门流量的特性状态；Determining a module for determining a characteristic state of the valve flow according to a valve opening amount in the feedback message;发送模块，用于当电网频率发生波动时，根据阀门流量的特性状态发送调频指令。The sending module is configured to send the FM command according to the characteristic state of the valve flow when the grid frequency fluctuates.
- 如权利要求5所述的装置，其特征在于，所述阀门流量的特性状态具体包括线性状态和非线性状态。The apparatus according to claim 5, wherein said characteristic state of said valve flow rate specifically comprises a linear state and a non-linear state.
- 如权利要求6所述的装置，其特征在于，所述发送模块，具体用于当所述阀门流量的特性状态为线性状态时，发送携带有比例放大系数为A1的调频量的调频指令。The apparatus according to claim 6, wherein the transmitting module is configured to: when the characteristic state of the valve flow rate is a linear state, transmit a frequency modulation command carrying a frequency modulation amount having a proportional amplification factor of A1.
- 如权利要求7所述的装置，其特征在于，所述发送模块，具体用于当所述阀门流量的特性状态为非线性状态时，发送携带有比例放大系数为A2的调频量的调频指令。 The apparatus according to claim 7, wherein the transmitting module is configured to: when the characteristic state of the valve flow rate is a non-linear state, transmit a frequency modulation command carrying a frequency modulation amount having a proportional amplification factor of A2.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113219242A (en) * | 2021-03-26 | 2021-08-06 | 大唐三门峡发电有限责任公司 | Primary frequency modulation test method under million unit rated load working condition |
| CN114069654A (en) * | 2021-11-10 | 2022-02-18 | 国网山东省电力公司电力科学研究院 | Primary frequency modulation method and system for thermal power generating unit |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106208852B (en) * | 2016-07-08 | 2018-08-10 | 云南电力试验研究院(集团)有限公司 | A kind of fired power generating unit primary frequency modulation spare capacity control strategy optimization method |
| CN107589706A (en) * | 2017-08-10 | 2018-01-16 | 国家电网公司 | A kind of fired power generating unit relates to net performance on-line monitoring method and device |
| CN109378850B (en) * | 2018-11-19 | 2021-10-08 | 国网四川综合能源服务有限公司四川电力工程分公司 | Primary frequency modulation optimization method under sequence valve control mode |
| CN111130096B (en) * | 2019-12-06 | 2023-07-28 | 国网天津市电力公司电力科学研究院 | Parameter calculation-based primary frequency modulation performance evaluation method for generator set |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611124A (en) * | 2012-03-10 | 2012-07-25 | 山东电力研究院 | Primary frequency regulation control method applicable to thermal generator set of intelligent power grid |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103378601B (en) * | 2012-04-20 | 2016-03-09 | 华北电力科学研究院有限责任公司 | A kind of primary frequency modulation method based on bang-bang control and device |
-
2014
- 2014-06-10 CN CN201410255115.5A patent/CN105226700B/en active Active
- 2014-11-27 WO PCT/CN2014/001057 patent/WO2015188293A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611124A (en) * | 2012-03-10 | 2012-07-25 | 山东电力研究院 | Primary frequency regulation control method applicable to thermal generator set of intelligent power grid |
Non-Patent Citations (2)
| Title |
|---|
| LI, QIANMIN ET AL.: "Optimal Analysis on Flow Characteristic of Valve in Steam Turbine.", ELECTRIC POWER SCIENCE AND ENGINEERING., vol. 28, no. 9, 30 September 2012 (2012-09-30), pages 47 - 51, XP055242108, ISSN: 1672-0792 * |
| WU, HAICENG.: "Research on Simulation Method of DEH Valve Flux Characteristic.", ANHUI ELECTRIC POWER, vol. 28, no. 4, 31 December 2011 (2011-12-31), pages 28 - 30, ISSN: 1671-5799 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113219242A (en) * | 2021-03-26 | 2021-08-06 | 大唐三门峡发电有限责任公司 | Primary frequency modulation test method under million unit rated load working condition |
| CN113219242B (en) * | 2021-03-26 | 2024-03-12 | 大唐三门峡发电有限责任公司 | Primary frequency modulation test method under millions of units rated load working conditions |
| CN114069654A (en) * | 2021-11-10 | 2022-02-18 | 国网山东省电力公司电力科学研究院 | Primary frequency modulation method and system for thermal power generating unit |
| CN114069654B (en) * | 2021-11-10 | 2023-09-08 | 国网山东省电力公司电力科学研究院 | Primary frequency modulation method and system for thermal power generating unit |
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