JP2019115249A - Method, apparatus, and system for frequency modulation in power grid - Google Patents
Method, apparatus, and system for frequency modulation in power grid Download PDFInfo
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- JP2019115249A JP2019115249A JP2018168880A JP2018168880A JP2019115249A JP 2019115249 A JP2019115249 A JP 2019115249A JP 2018168880 A JP2018168880 A JP 2018168880A JP 2018168880 A JP2018168880 A JP 2018168880A JP 2019115249 A JP2019115249 A JP 2019115249A
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- H—ELECTRICITY
- 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
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- H—ELECTRICITY
- 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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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Abstract
Description
本発明は電力網の周波数変調技術分野に関し、特に電力網に対して周波数変調を行う方法、装置及びシステムに関する。 The present invention relates to the field of frequency modulation of power networks, and more particularly to a method, apparatus and system for frequency modulation of power grids.
電力網の周波数を既定範囲内に安定させることを保証するように、発電所より電力網に入力されるパワーを調整する必要がある。当該調整は、通常、一次パワーの調整と二次パワーの調整を含んでいる。 It is necessary to adjust the power input from the power plant to the grid so as to ensure that the grid frequency is stabilized within a predetermined range. The adjustment usually includes the adjustment of primary power and the adjustment of secondary power.
ここで、一次パワーの調整とは、変化の幅が小さく、周期が短い偶発的な負荷変動が出た場合、発電ユニットの原動機械の調速機を利用して、原動機械で出力される機械的なパワーを負荷の変化に追従させるように、発電ユニットより出力されるパワーを調整することを指す。 Here, with primary power adjustment, when the width of the change is small and the accidental load fluctuation with a short cycle is generated, the machine output by the driving machine using the governor of the driving machine of the power generation unit To adjust the power output from the power generation unit so as to make the dynamic power follow a change in load.
二次パワーの調整とは、変化の幅が大きく、周期が長い負荷変動が出た場合、発電ユニットの原動機械の周波数変調機を利用して、原動機械で出力される機械的なパワーを負荷の変化に追従させるように、発電ユニットより出力されるパワーを調整することを指す。 With secondary power adjustment, when there is a load change with a large range of change and a long cycle, the mechanical power output by the driving machine is loaded using the frequency modulator of the driving machine of the power generation unit To adjust the power output from the power generation unit so as to follow changes in
従来技術では、一次パワーの調整は発電ユニットのＤＥＨシステムで行われるが、二次パワーの調整はＡＧＣシステムで行われる。具体的には、一次パワーの調整はユニットの一次周波数変調機能で完成するが、それが電力網の周波数変化を反映する回転数の差で発生する制御信号を利用して、直接、ユニットのＤＥＨ（Ｄｉｇｉｔａｌ Ｅｌｅｃｔｒｉｃ Ｈｙｄｒａｕｌｉｃ ｃｏｎｔｒｏｌ ｓｙｓｔｅｍ）を調整するため、調節速度が比較的速い。 In the prior art, the adjustment of the primary power is done in the DEH system of the generating unit, while the adjustment of the secondary power is done in the AGC system. Specifically, although the adjustment of the primary power is completed with the primary frequency modulation function of the unit, the DEH of the unit is directly made use of the control signal generated by the difference in the number of revolutions reflecting the frequency change of the power network. Adjustment speed is relatively fast because of adjustment of Digital Electric Hydraulic control system.
電力網の実際の運転では、必ずパワーの調整方式をうまく調整しなければならない。電力網に一次パワーの調整機能を持っていない、あるいは投入が不足する場合、電力網の周波数の安定に不利であるとともに、ＡＧＣの調節の負担が増える。 In the actual operation of the power grid, the power adjustment scheme must be well coordinated. If the power network does not have the primary power adjustment function or is not supplied enough, it is disadvantageous to the stability of the power network frequency and the burden of AGC adjustment increases.
ＡＧＣ機能の投入運転の状況はＡＧＣ制御論理、通信システム、ユニットの自動制御システム、ユニットの一次設備、運転方式、石炭の質などの要素と密接な関係を持っている。 The status of AGC operation is closely related to AGC control logic, communication system, unit automatic control system, unit primary equipment, operation method, coal quality and other factors.
現在では、電力網は主に発電所に対して単一のユニットのＡＧＣ負荷調整を実施しており、且つ配分センターで決められた負荷曲線とＡＧＣで決めた負荷曲線に比較的大きい差があって、ＡＧＣを投入した後でまた配分の許容範囲で負荷を調整することができない（通常、発電所でＡＧＣの不感帯調節を大きく設定しているが、このようにして不感帯内でＡＧＣを調節しないので、配分センターの配分指令がユニット負荷に対する調節の役割を果たさなくなる）ので、発電所で負荷調整誤差が比較的大きい問題があり、発電所の経済利益の最大化に不利である。更に、ＡＧＣで決めた負荷増減の速度が速く、発電所の発電ユニットの出力の調整が遅く、衝撃負荷の容量が大きいので、発電所の発電ユニットに比較的高い調節効果を達成させるように、第一時間に出力の調整を行う調節精度が高くて速度が速い補助設備を必要とする。 At present, the power network mainly carries out AGC load adjustment of a single unit to a power plant, and there is a relatively large difference between the load curve determined at the distribution center and the load curve determined by the AGC. It is not possible to adjust the load again within the distribution tolerance after turning on the AGC. (Normally, although the dead zone adjustment of the AGC is set large at the power plant, it does not adjust the AGC within the dead zone in this way. Because the distribution center allocation command ceases to play a role in adjusting the unit load), there is a problem that the load adjustment error is relatively large in the power plant, which is disadvantageous for maximizing the economic benefit of the power plant. Furthermore, because the speed of load increase / decrease determined by AGC is slow, the output adjustment of the power generation unit of the power plant is slow, and the capacity of the shock load is large, the power generation unit of the power plant can achieve relatively high adjustment effect. It requires auxiliary equipment with high adjustment accuracy and fast speed to adjust the output in the first time.
本発明の目的は、電力網に周波数変調を行う方法とシステムを提供することにある。 It is an object of the present invention to provide a method and system for frequency modulation in a power grid.
上記課題を解決するために、本発明は、需要電力負荷データを受けること、前記需要電力負荷データに基づき発電負荷の調整可能なレートについて上限値と下限値を設定すること、発電負荷の調整可能なレートの上限値と下限値によって、現在の電力網の発電所に対する需要電力負荷データと発電所のリアルタイムの発電量との偏差を計算すること、前記偏差が所定の偏差値に等しいか否かを判断すること、前記偏差が所定の偏差値に等しくない場合、発電所で発電負荷を調整する必要があることを判定すること、前記偏差と所定の偏差値の比較結果により、発電負荷を調整する調整計画を選択し、そして選択した調整計画をパワー調節器に送信すること、を含む電力網に周波数変調を行う方法を提供する。 In order to solve the above problems, the present invention receives demand power load data, sets an upper limit value and a lower limit value of the adjustable rate of the power generation load based on the demand power load data, can adjust the power generation load Calculating the deviation between the demand power load data for the power plant of the current power grid and the power generation capacity of the power plant in real time according to the upper limit value and the lower limit value of the current rate, and whether the deviation is equal to a predetermined deviation value Determining, when the deviation is not equal to a predetermined deviation value, determining that the power generation load needs to be adjusted at the power plant, adjusting the electricity generation load according to the comparison result of the deviation and a predetermined deviation value Providing a method of frequency modulation to a power grid, including selecting a tuning plan and transmitting the selected tuning plan to a power regulator.
本発明はまた、需要電力負荷データを受けるための取得モジュールと、前記需要電力負荷データに基づき発電負荷の調整可能なレートについて上限値と下限値を設定するパラメータ設定モジュールと、発電負荷の調整可能なレートの上限値と下限値によって、現在の電力網の発電所に対する需要電力負荷データと発電所のリアルタイムの発電量との偏差を計算する偏差計算モジュールと、前記偏差が所定の偏差値に等しいか否かを判断して、偏差が所定の偏差値に等しくない場合、発電所で発電負荷を調整する必要があることを判定して、調整計画選択モジュールに選択開始指令を送信する判断モジュールと、偏差と所定の偏差値の比較結果によって、発電負荷を調整する計画を選択し、そして選択した調整計画をパワー調節器に送信する調整計画選択モジュールと、を含む電力網に周波数変調を行う制御装置を提供する。前記調整計画は、外部補助周波数変調設備調整計画と発電ユニット調整計画を含む。 The present invention also includes an acquisition module for receiving demand power load data, a parameter setting module for setting an upper limit value and a lower limit value for the adjustable rate of the power generation load based on the demand power load data, and the power generation load adjustable. A deviation calculation module for calculating the deviation between the demand power load data for the power plant of the current grid and the real-time power generation amount of the power plant according to the upper and lower limit values of the current rate, and the deviation is equal to a predetermined deviation value A determination module that determines whether it is necessary to adjust the power generation load at the power plant if the deviation is not equal to the predetermined deviation value, and transmits a selection start command to the adjustment plan selection module; According to the result of comparison between the deviation and the predetermined deviation value, a plan for adjusting the power generation load is selected, and the adjustment to transmit the selected adjustment plan to the power adjuster A plan selection module, to provide a control device for performing frequency modulation to the power grid including. The adjustment plan includes an external auxiliary frequency modulation equipment adjustment plan and a generation unit adjustment plan.
前記偏差が所定の偏差範囲より小さい場合、外部補助周波数変調設備調整計画を選択するが、前記外部補助周波数変調設備調整計画はバッテリーの充放電や電極型ボイラー、電気圧縮冷凍ユニットや電解水素製造槽の電力消費負荷変化を調整して負荷の偏差調整の必要を満たし、且つ蒸気タービンとボイラーの負荷が不変なことを維持することを含む。 If the deviation is smaller than the predetermined deviation range, the external auxiliary frequency modulation equipment adjustment plan is selected, but the external auxiliary frequency modulation equipment adjustment plan is the charge / discharge of the battery, the electrode type boiler, the electric compression refrigeration unit, the electrolytic hydrogen production tank Adjusting the power consumption load change to meet the need for load deviation adjustment, and maintaining the steam turbine and boiler load unchanged.
前記偏差が所定の偏差範囲より大きい場合、優先的に外部補助周波数変調設備調整計画を選択するが、外部補助周波数変調設備調整計画が負荷偏差の調整の必要を満たすことができない場合、前記負荷偏差の調整の必要を満たすように、発電ユニット調整計画を追加する。 If the deviation is larger than a predetermined deviation range, the external auxiliary frequency modulation equipment adjustment plan is preferentially selected, but the external auxiliary frequency modulation equipment adjustment plan can not satisfy the need for adjustment of load deviation, the load deviation Add a generation unit adjustment plan to meet the need for adjustment of.
本発明は、前記記憶媒体にコンピュータのプログラムが記憶され、前記プログラムがプロセッサーで実行される時に前記電力網に周波数変調を行う方法のステップを実施するコンピュータの読取可能な記憶媒体を更に提供する。 The present invention further provides a computer readable storage medium implementing the steps of a method of performing frequency modulation on the power grid when the program of the computer is stored in the storage medium and the program is executed by a processor.
本発明は、発電ユニットと外部補助周波数変調設備を含んで、記憶装置、プロセッサー及び前記記憶装置に記憶されて前記プロセッサーで運用できるコンピュータのプログラムを更に含んで、前記プロセッサーが前記プログラムを実行する時に前記電力網に周波数変調を行う方法のステップを実施する電力網に周波数変調を行うシステムを更に提供する。 The present invention further includes a storage device, a processor, and a computer program stored in the storage device and operable by the processor, including a power generation unit and an external auxiliary frequency modulation facility, when the processor executes the program. Further provided is a system for performing frequency modulation on a power network, which implements the steps of the method for performing frequency modulation on the power network.
本発明の上記技術案は次の通りの有益な技術的効果を有する。 The above technical solution of the present invention has the following beneficial technical effects.
１）ＡＧＣシステムで直接に外部補助周波数変調設備（バッテリー、ニュースボイラー、電解槽など）を制御することができ、電力網のピーク調整と周波数変調がピーク調整範囲を増大し、大幅に負荷変更速度を引上げ、ユニットの安定性も非常に良いという明らかな優位性を有するようになること。 1) AGC system can control external auxiliary frequency modulation equipment (battery, news boiler, electrolyzer etc) directly, peak adjustment of power network and frequency modulation increase peak adjustment range, and load change speed significantly To have the clear advantage that the stability of the unit is also very good.
２）伝統的なＡＧＣによる負荷調整の制限を克服し、調整の許容負荷規則で、ユニットの最適な経済負荷による長い時間・温度での運転に努め、負荷の短い時間における周波数変調の変動と長い時間におけるピーク調整変化がユニットの外部補助ピーク調整と周波数変調設備で対応すること。 2) Overcome the limitation of load adjustment by traditional AGC, work on long time and temperature operation by optimum economic load of unit with the allowable load rule of adjustment, fluctuation of frequency modulation and long in short time of load Peak adjustment changes in time are accommodated by the unit's external auxiliary peak adjustment and frequency modulation equipment.
３）論理改善と最適化及び新型設備の採用の後に、一次周波数変調とＡＧＣの調節の質が明らかに高まり、電力網のピーク調整と周波数変調などの補助サービスの奨励や補償を受けることができること。 3) After logic improvement and optimization and adoption of new equipment, the quality of adjustment of primary frequency modulation and AGC is clearly improved, and can receive encouragement and compensation of auxiliary services such as peak adjustment of power network and frequency modulation.
本発明の目的、技術案と利点を更に明らかにするために、次に具体的な実施例を結び付けて添付図面を参照して本発明を更に詳しく説明する。これらの説明は単に例示的なものであり、決して本発明の範囲を制限するものではないことを理解するべきである。また、本発明との概念を混淆しないように、下記の説明には公知構造と技術に対する説明を省略する。
本発明の技術案を説明する前に、まず本発明に関わる用語を説明する。
In order to further clarify the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the attached drawings in connection with specific embodiments. It should be understood that these descriptions are merely illustrative and do not in any way limit the scope of the present invention. Further, in order to avoid complicating the concept with the present invention, descriptions of known structures and techniques are omitted in the following description.
Before describing the technical solution of the present invention, first, terms related to the present invention will be described.
用語１：ＤＥＨ、英文の正式名称はＤｉｇｉｔａｌ Ｅｌｅｃｔｒｉｃ Ｈｙｄｒａｕｌｉｃ ｃｏｎｔｒｏｌ ｓｙｓｔｅｍであり、日本語の名称はデジタル電気油圧制御システムであるが、電気に油圧サーボアクチュエータを駆動してバルブの開度を制御することに用いられる。ＤＥＨはもっぱら蒸気タービンの回転数を調節するのに用いられる。 Term 1: DEH, the official name of the English language is the Digital Electric Hydraulic control system, and the Japanese name is the digital electrohydraulic control system, but in the control of the valve opening by driving the hydraulic servo actuator to electricity Used. DEH is used exclusively to adjust the speed of the steam turbine.
用語２：ＤＣＳで、英文の正式名称はＤｉｓｔｒｉｂｕｔｅｄ ｃｏｎｔｒｏｌ ｓｙｓｔｅｍであり、日本語の名称は集散制御システムで、また分散制御システムとも称される。このシステムは少数の上位機（サーバー）と大量の下位機（サブコントローラ）を経由して設備グループに対する共同制御を実現するが、すべてのサブコントローラは単に一部の設備だけを制御する。すべてのサブコントローラの運転は上位機にモニタリングされており、作業者はサーバーを経由してすべてのコントローラの運転状態をモニタリングすることができる。 Term 2: DCS, the official name of the English language is Distributed control system, and the Japanese name is a distribution control system, also called a distributed control system. Although this system achieves joint control over a group of facilities via a small number of upper machines (servers) and a large number of lower machines (sub-controllers), all sub-controllers control only some of the facilities. The operation of all sub-controllers is monitored by the host machine, and workers can monitor the operating status of all controllers via the server.
用語３：ＡＧＣで、英文の正式名称は Ａｕｔｏｍａｔｉｃ Ｇｅｎｅｒａｔｉｏｎ Ｃｏｎｔｒｏｌであり、日本語の名称は自動発電制御システムである。このシステムは電力網配分センターの制御目標によって指令を関連発電所や発電ユニットに送信し、発電所や発電ユニットの自動制御調節装置を経由して、発電機のパワーに対する自動制御を実現する。
図１は、本発明が提供する電力網に周波数変調を行う方法の第１実施例のステップのフローチャートである。
Term 3: AGC The official name in English is Automatic Generation Control, and the Japanese name is Automatic Generation Control System. This system sends commands to the relevant power stations and power generation units according to the control target of the grid distribution center, and realizes automatic control over the generator power via automatic control and adjustment of the power stations and power generation units.
FIG. 1 is a flow chart of the steps of a first embodiment of a method of frequency modulating a power grid provided by the present invention.
図１のように、本実施例が提供する電力網に周波数変調を行う方法は、本実施例で、以下の方法をＤＣＳシステムに配置することができるが、本実施例の方法は下記のステップＳ１−Ｓ５を含む。Ｓ１、需要電力負荷データを受けること。このステップでは、需要電力負荷データは現在の発電所の需要電力負荷データである。 As shown in FIG. 1, the method of performing frequency modulation on the power grid provided in this embodiment is the following method can be arranged in the DCS system in this embodiment, but the method of this embodiment is the following step S1. -Including S5. S1, receiving demand power load data. In this step, the demand power load data is the current demand power load data of the power plant.
需要電力負荷データを受けることは、ＡＧＣシステムが送信する需要電力負荷データを受けること、あるいは作業者がマン・マシン相互システムに基づいてＤＣＳシステムに入力する需要電力負荷データを受けることを含む。
Ｓ２、需要電力負荷データに基づいて発電負荷の調整可能な速度に上限値と下限値を設定すること。
Receiving the demand power load data includes receiving the demand power load data transmitted by the AGC system, or receiving the demand power load data input to the DCS system based on the man-machine interaction system.
S2, setting the upper limit value and the lower limit value to the adjustable speed of the generation load based on the demand power load data.
Ｓ３、発電負荷の調整可能な速度の上限値と下限値によって、現在の電力網の発電所に対する需要電力負荷データと発電所のリアルタイムの発電量との偏差を計算すること。 S3, to calculate the deviation between the demand power load data for the power plant of the current grid and the real-time power generation capacity of the power plant by the upper and lower limits of the adjustable speed of the power generation load.
図２は通常見られる周波数差の関数である。ここで、図２（ａ）は、不感帯がない線形周波数変調差の関数である。図２（ｂ）は、不感帯がある周波数差の関数である。図２（ｃ）は、ステップ応答を備える周波数差の関数である。 FIG. 2 is a function of the frequency difference normally found. Here, FIG. 2 (a) is a function of the linear frequency modulation difference without a dead zone. FIG. 2 (b) is a function of the frequency difference with the dead zone. FIG. 2 (c) is a function of the frequency difference comprising the step response.
国内の大多数のメーカーで発電する電気は、図２（ｂ）に示される周波数差の関数を利用して電力網の周波数を調節している。国内の少数のメーカーは図２（ｃ）に示される周波数差の関数を利用して電力網の周波数を調節している。 The electricity generated by most domestic manufacturers adjusts the frequency of the power grid using the function of the frequency difference shown in FIG. 2 (b). A few domestic manufacturers use the function of the frequency difference shown in FIG. 2 (c) to adjust the frequency of the power grid.
ユニットの一次周波数変調に周波数調節の不感帯があるとは、特にシステムが定格の回転数の近くで回転数に対する鋭敏ではないエリアを指す。電力網の周波数変化のより小さい状況で、ユニットの運転の安定性を高めるために、通常、電気調整システムに周波数の不感帯を設けている。 The presence of the frequency adjustment dead band in the primary frequency modulation of the unit refers to the area where the system is not sensitive to the speed, especially near the rated speed. In order to increase the stability of the operation of the unit under smaller conditions of power network frequency changes, the electrical regulation system is usually provided with a frequency dead zone.
中国の具体的な状況によれば、図２（ｂ）の周波数差の関数を電力網の周波数調節方法として、そして周波数の不感帯を±２ ｒ／ｍｉｎ（±０．０３４Ｈｚ）に設定するのは比較的適当である。主に下記のことを考慮に入れている。 According to the specific situation in China, comparing the function of the frequency difference in Fig. 2 (b) as the frequency adjustment method of the power network and setting the dead band of the frequency to ± 2 r / min (± 0.034 Hz) Is appropriate. The following are mainly taken into consideration.
１）電力網の周波数が５０±０．０３４Ｈｚにバイアスした場合、調整し始めるが、区域の電力網に求められる５０±０．１Ｈｚまで比較的大きい余裕があること。
２）火力発電ユニットの負荷調整精度が低く、小さい範囲で負荷を調整する正確性が悪く、一定の偏差があることを許すこと。
３）回転数の測定、周波数の測定データに一定の誤差と不確定性があって、不感帯を設けると、避けることができること。
４）ユニットの不要な負荷変動を減らすこと。
Ｓ４、偏差が所定の偏差に等しいか否かを判断すること。偏差が所定の偏差値に等しくない場合、発電所に発電負荷の調整を必要とすることを判定する。
Ｓ５、偏差と所定の偏差値の比較結果によって、発電負荷の調整計画を選択し、そして選択した調整計画をパワー調節器に送信すること。
1) If the power grid frequency is biased to 50 ± 0.034 Hz, start to adjust, but there is a relatively large margin up to 50 ± 0.1 Hz required for the area power grid.
2) The load adjustment accuracy of the thermal power generation unit is low, the accuracy of adjusting the load in a small range is poor, and it is allowed to have a certain deviation.
3) Measurement of rotation speed, measurement data of frequency have certain errors and uncertainties, and it can be avoided if a dead zone is provided.
4) Reduce unnecessary load fluctuation of the unit.
S4, determining whether the deviation is equal to a predetermined deviation. If the deviation is not equal to the predetermined deviation value, it is determined that the power plant needs to adjust the generation load.
S5, selecting a generation load adjustment plan according to the result of comparison between the deviation and a predetermined deviation value, and transmitting the selected adjustment plan to the power adjuster.
このステップでは、偏差と所定の偏差値の比較結果によって発電負荷の調整計画を選択することは、偏差が所定の偏差範囲より小さい場合、バッテリーの充放電や電極型ボイラー、電気圧縮冷凍ユニットや電解水素製造槽の電力消費負荷変化を調整して発電負荷の偏差に応答し、且つ蒸気タービンとボイラーの負荷が不変なことを維持することを含む外部補助周波数変調設備調整計画を選択することと、偏差が所定の偏差範囲より大きい場合、優先的に外部補助周波数変調設備調整計画を選択するが、外部補助周波数変調設備調整計画が負荷偏差の調整の必要を満たすことができない場合、前記負荷偏差の調整の必要を満たすように、発電ユニット調整計画を追加すること、を含む。 In this step, selecting the adjustment plan of the power generation load based on the comparison result of the deviation and the predetermined deviation value means that if the deviation is smaller than the predetermined deviation range, charging / discharging of the battery, electrode type boiler, electric compression refrigeration unit or electrolysis Selecting an external auxiliary frequency modulation facility conditioning plan that includes adjusting the power consumption load changes of the hydrogen production tank to respond to power generation load deviations, and maintaining the steam turbine and boiler loads unchanged. If the deviation is larger than the predetermined deviation range, the external auxiliary frequency modulation equipment adjustment plan is preferentially selected, but if the external auxiliary frequency modulation equipment adjustment plan can not meet the need for adjustment of the load deviation, the load deviation Including adding a generation unit adjustment plan to meet the need for adjustment.
前記発電機ユニットの調整計画は、蒸気タービンの蒸気吸入量の調整、ボイラーの燃料供給量の調整、通風量の調整、給水量の調節、熱供給の蒸気抜き量の調整、蒸気タービンのバイパス流量の調整の１種又は複数種の組合せを採用する。ここで、ボイラーの燃料供給量の調整は、石炭粉砕機の駆動装置の駆動力の調整を含む。通風量の調整は、一次ファン及び／又は二次ファンの回転数を制御してバリア板の開度を調整することを含む。給水量の調節は、給水ポンプの周波数変換器の回転数と給水ポンプの再循環流量の調整を含む。 The adjustment plan of the generator unit is adjustment of steam intake of steam turbine, adjustment of fuel supply of boiler, adjustment of ventilation, adjustment of water supply, adjustment of steam supply of heat supply, bypass flow of steam turbine A combination of one or more of the adjustments of Here, the adjustment of the fuel supply amount of the boiler includes the adjustment of the driving force of the drive device of the coal crusher. The adjustment of the air flow rate includes controlling the rotational speed of the primary fan and / or the secondary fan to adjust the opening degree of the barrier plate. Adjustment of the amount of water supply includes adjustment of the number of revolutions of the frequency converter of the feed pump and the recirculation flow rate of the feed pump.
外部補助周波数変調設備は、バッテリー、電気ボイラー、電解水素製造設備、電気コンプレッサーを含む。ここで、バッテリーは、それぞれ発電機ユニットと電力網と電気的に接続しており、発電機ユニットから出た電気エネルギーの貯蔵に用いられ、また電力網に電気エネルギーを送り込むことに用いられる。電気ボイラーは、発電機ユニットと電気的に接続しており、発電機ユニットから出た電気エネルギーの消費に用いられる。電解水素製造設備は、発電機ユニットと電気的に接続しており、発電機ユニットから出た電気エネルギーの消費に用いられる。電気コンプレッサーは、発電機ユニットと電気的に接続しており、発電機ユニットから出た電気エネルギーの消費に用いられる。 The external auxiliary frequency modulation equipment includes a battery, an electric boiler, an electrolytic hydrogen production equipment, and an electric compressor. Here, the battery is electrically connected to the generator unit and the power network, is used to store the electrical energy emitted from the generator unit, and is used to send the electrical energy to the power network. An electric boiler is in electrical communication with the generator unit and is used to consume the electrical energy leaving the generator unit. The electrolytic hydrogen production facility is electrically connected to the generator unit and is used to consume the electrical energy emitted from the generator unit. An electrical compressor is in electrical communication with the generator unit and is used to consume the electrical energy leaving the generator unit.
外部補助周波数変調設備調整計画は、バッテリーから電力網に出力したり入力したりする電気量の調整、電気ボイラーの電力消費負荷の調整、電気コンプレッサーの電力消費負荷の調整、電解水素製造槽の電力消費負荷の調整の１種又は複数種の組合せを含む。 The external auxiliary frequency modulation facility adjustment plan adjusts the amount of electricity output from the battery to the power grid, adjusts the power consumption load of the electric boiler, adjusts the power consumption load of the electric compressor, and consumes the power of the electrolytic hydrogen production tank Includes one or more combinations of load adjustments.
図３は、本発明が提供する電力網に周波数変調を行う方法の第２実施例のステップのフローチャートである。 FIG. 3 is a flow chart of the steps of a second embodiment of the method for frequency modulation of a power grid provided by the present invention.
図３のように、本実施例が提供する電力網に周波数変調を行う方法は、下記のステップＳ１０１−Ｓ１０５を含む。 As shown in FIG. 3, the method of performing frequency modulation on the power grid provided by the present embodiment includes the following steps S101 to S105.
Ｓ１０１、需要電力負荷データを受けること。 S101, receiving demand power load data.
このステップでは、需要電力負荷データは現在の発電所の需要電力負荷データである。 In this step, the demand power load data is the current demand power load data of the power plant.
需要電力負荷データを受けることは、ＡＧＣシステムが送信する需要電力負荷データ、あるいは作業者がマン・マシン相互システムに基づいてＤＣＳシステムに入力する需要電力負荷データを含む。 Receiving the demand power load data includes demand power load data transmitted by the AGC system, or demand power load data input by the operator to the DCS system based on the man-machine mutual system.
Ｓ１０２、需要電力負荷データに基づいて発電負荷の調整可能な速度について上限値と下限値を設定すること。 S102, setting the upper limit value and the lower limit value of the adjustable speed of the power generation load based on the demand power load data.
Ｓ１０３、一次周波数変調指令を受け取った場合、発電機ユニットの回転数によって発電の負荷を調整すること。 S103, when receiving the primary frequency modulation command, adjust the load of power generation by the number of revolutions of the generator unit.
Ｓ１０４、発電負荷の調整可能な速度の上限値と下限値、及び発電機ユニットの回転数の調整後の発電負荷によって、現在の電力網の発電所に対する需要電力負荷データと発電所のリアルタイムの発電量との偏差を計算すること。 S104, the upper and lower limit values of the adjustable speed of the generation load, and the generated load after adjustment of the generator unit rotation speed, the demand power load data for the power plant of the current power network and the real-time power generation amount of the power plant To calculate the deviation with.
Ｓ１０５、偏差が所定の偏差に等しいか否かを判断するが、偏差が所定の偏差値に等しくない場合、発電所に発電負荷の調整を必要とすることを判定すること。 S105, It is determined whether or not the deviation is equal to a predetermined deviation, but if the deviation is not equal to a predetermined deviation, it is determined that the power plant needs to adjust the generation load.
Ｓ１０６、偏差と所定の偏差値の比較結果によって、発電負荷の調整計画を選択し、そして選択した調整計画をパワー調節器に送信すること。 S106, selecting a generation load adjustment plan according to the result of comparison between the deviation and a predetermined deviation value, and transmitting the selected adjustment plan to the power adjuster.
このステップでは、偏差と所定の偏差値の比較結果によって発電負荷の調整計画を選択することは、偏差が所定の偏差範囲より小さい場合、バッテリーの充放電や電極型ボイラー、電気圧縮冷凍ユニットや電解水素製造槽の電力消費負荷変化を調整して発電負荷の偏差に応答し、且つ蒸気タービンとボイラーの負荷が不変なことを維持することを含む外部補助周波数変調設備調整計画を選択することと、偏差が所定の偏差範囲より大きい場合、優先的に外部補助周波数変調設備調整計画を選択するが、外部補助周波数変調設備調整計画が負荷偏差の調整の必要を満たすことができない場合、前記負荷偏差の調整の必要を満たすように、発電ユニット調整計画を追加すること、を含む。 In this step, selecting the adjustment plan of the power generation load based on the comparison result of the deviation and the predetermined deviation value means that if the deviation is smaller than the predetermined deviation range, charging / discharging of the battery, electrode type boiler, electric compression refrigeration unit or electrolysis Selecting an external auxiliary frequency modulation facility conditioning plan that includes adjusting the power consumption load changes of the hydrogen production tank to respond to power generation load deviations, and maintaining the steam turbine and boiler loads unchanged. If the deviation is larger than the predetermined deviation range, the external auxiliary frequency modulation equipment adjustment plan is preferentially selected, but if the external auxiliary frequency modulation equipment adjustment plan can not meet the need for adjustment of the load deviation, the load deviation Including adding a generation unit adjustment plan to meet the need for adjustment.
前記発電機ユニットの調整計画は、燃料供給量の調整、通風量の調整、給水量の調節の１種又は複数種の組合せを採用する。ここで、燃料供給量の調整は、石炭粉砕機の駆動装置の駆動力の調整を含む。通風量の調整は、一次ファン及び／又は二次ファンの回転数を制御してバリア板の開度の調整を含む。給水量の調節は、給水ポンプの周波数変換器の回転数と給水ポンプの再循環流量の調整を含む。 The adjustment plan of the generator unit adopts one or a combination of the adjustment of the fuel supply amount, the adjustment of the ventilation amount, and the adjustment of the water supply amount. Here, the adjustment of the fuel supply amount includes the adjustment of the driving force of the drive device of the coal crusher. The adjustment of the amount of air flow includes the adjustment of the opening degree of the barrier plate by controlling the rotational speed of the primary fan and / or the secondary fan. The adjustment of the water supply amount includes the adjustment of the number of rotations of the frequency converter of the water supply pump and the recirculation flow rate of the water supply pump.
外部補助周波数変調設備は、バッテリー、電気ボイラー、電解水素製造設備、電気コンプレッサーを含む。ここで、バッテリーは、それぞれ発電機ユニットと電力網とに電気的に接続しており、発電機ユニットから出た電気エネルギーの貯蔵に用いられ、また電力網に電気エネルギーを送り込むことに用いられる。電気ボイラーは、発電機ユニットと電気的に接続しており、発電機ユニットから出た電気エネルギーの消費に用いられる。電解水素製造設備は、発電機ユニットと電気的に接続しており、発電機ユニットから出た電気エネルギーの消費に用いられる。電気コンプレッサーは、発電機ユニットと電気的に接続しており、発電機ユニットから出た電気エネルギーの消費に用いられる。 The external auxiliary frequency modulation equipment includes a battery, an electric boiler, an electrolytic hydrogen production equipment, and an electric compressor. Here, the batteries are respectively electrically connected to the generator unit and the power grid, used for storing the electrical energy emitted from the generator unit, and also used for sending the electrical energy to the power grid. An electric boiler is in electrical communication with the generator unit and is used to consume the electrical energy leaving the generator unit. The electrolytic hydrogen production facility is electrically connected to the generator unit and is used to consume the electrical energy emitted from the generator unit. An electrical compressor is in electrical communication with the generator unit and is used to consume the electrical energy leaving the generator unit.
外部補助周波数変調設備調整計画は、バッテリーから電力網に出力したり入力したりする電気量の調整、電気ボイラーの電力消費負荷の調整、電気コンプレッサーの電力消費負荷の調整、電解水素製造槽の電力消費負荷の調整の１種又は複数種の組合せを含む。
図４は、本発明が提供する電力網に周波数変調を行うシステムの第１実施例のモジュール説明図である。
The external auxiliary frequency modulation facility adjustment plan adjusts the amount of electricity output from the battery to the power grid, adjusts the power consumption load of the electric boiler, adjusts the power consumption load of the electric compressor, and consumes the power of the electrolytic hydrogen production tank Includes one or more combinations of load adjustments.
FIG. 4 is a module diagram of a first embodiment of a system for performing frequency modulation on a power grid provided by the present invention.
図４のように、本実施例では、電力網に周波数変調を行うシステムは、取得モジュール、パラメータ設定モジュール、偏差計算モジュール、判断モジュールと調整計画選択モジュールを含む。 As shown in FIG. 4, in the present embodiment, a system for performing frequency modulation on a power network includes an acquisition module, a parameter setting module, a deviation calculation module, a determination module, and an adjustment plan selection module.
ここで、取得モジュールは需要電力負荷データを受ける。 Here, the acquisition module receives demand power load data.
パラメータ設定モジュールは、需要電力負荷データに基づいて発電負荷の調整可能な速度に上限値と下限値を設定する。 The parameter setting module sets the upper limit value and the lower limit value to the adjustable speed of the power generation load based on the demand power load data.
偏差計算モジュールは、発電負荷の調整可能な速度の上限値と下限値によって、現在の電力網の発電所に対する需要電力負荷データと発電所のリアルタイムの発電量との偏差を計算する。 The deviation calculation module calculates the deviation between the demand power load data for the power plant of the current grid and the real-time power generation capacity of the power plant according to the upper and lower limits of the adjustable speed of the power generation load.
判断モジュールは、偏差が所定の偏差に等しいか否かを判断する。偏差が所定の偏差値に等しくない場合、発電所に発電負荷の調整を必要とすることを判定し、そして調整計画選択モジュールに選択開始指令を送信する。
調整計画選択モジュールは、偏差と所定の偏差値の比較結果によって、発電負荷の調整計画を選択し、そして選択した調整計画をパワー調節器に送信する。
The determination module determines whether the deviation is equal to a predetermined deviation. If the deviation is not equal to the predetermined deviation value, it is determined that the power plant needs the adjustment of the generation load, and a selection start command is sent to the adjustment plan selection module.
The adjustment plan selection module selects a generation load adjustment plan according to the comparison result of the deviation and the predetermined deviation value, and transmits the selected adjustment plan to the power regulator.
このステップでは、偏差と所定の偏差値の比較結果によって発電負荷の調整計画を選択することは、偏差が所定の偏差範囲より小さい場合、発電機ユニット調整計画を選択することと、偏差が所定の偏差範囲より大きい場合、外部補助周波数変調設備調整計画を選択すること、を含む。 In this step, selecting the adjustment plan of the power generation load based on the comparison result of the deviation and the predetermined deviation value means selecting the generator unit adjustment plan when the deviation is smaller than the predetermined deviation range, and the deviation being predetermined. If larger than the deviation range, including selecting an external auxiliary frequency modulation equipment adjustment plan.
前記発電機ユニットの調整計画は、蒸気タービンの蒸気吸入量の調整、ボイラーの燃料供給量の調整、通風量の調整、給水量の調節、熱供給の蒸気抜き量の調整、蒸気タービンのバイパス流量の調整の１種又は複数種の組合せを採用する。ここで、ボイラーの燃料供給量の調整は、石炭粉砕機の駆動装置の駆動力の調整を含む。通風量の調整は、一次ファン及び／又は二次ファンの回転数を制御してバリア板の開度を調整することを含む。給水量の調節は、給水ポンプの周波数変換器の回転数と給水ポンプの再循環流量の調整を含む。 The adjustment plan of the generator unit is adjustment of steam intake of steam turbine, adjustment of fuel supply of boiler, adjustment of ventilation, adjustment of water supply, adjustment of steam supply of heat supply, bypass flow of steam turbine A combination of one or more of the adjustments of Here, the adjustment of the fuel supply amount of the boiler includes the adjustment of the driving force of the drive device of the coal crusher. The adjustment of the air flow rate includes controlling the rotational speed of the primary fan and / or the secondary fan to adjust the opening degree of the barrier plate. The adjustment of the water supply amount includes the adjustment of the number of rotations of the frequency converter of the water supply pump and the recirculation flow rate of the water supply pump.
外部補助周波数変調設備は、バッテリー、電気ボイラー、電解水素製造設備、電気コンプレッサーを含む。ここで、バッテリーは、それぞれ発電機ユニットと電力網と電気的に接続しており、発電機ユニットから出た電気エネルギーの貯蔵に用いられ、また電力網に電気エネルギーを送り込むことに用いられる。電気ボイラーは、発電機ユニットと電気的に接続しており、発電機ユニットから出た電気エネルギーの消費に用いられる。電解水素製造設備は、発電機ユニットと電気的に接続しており、発電機ユニットから出た電気エネルギーの消費に用いられる。電気コンプレッサーは、発電機ユニットと電気的に接続しており、発電機ユニットから出た電気エネルギーの消費に用いられる。 The external auxiliary frequency modulation equipment includes a battery, an electric boiler, an electrolytic hydrogen production equipment, and an electric compressor. Here, the battery is electrically connected to the generator unit and the power network, is used to store the electrical energy emitted from the generator unit, and is used to send the electrical energy to the power network. An electric boiler is in electrical communication with the generator unit and is used to consume the electrical energy leaving the generator unit. The electrolytic hydrogen production facility is electrically connected to the generator unit and is used to consume the electrical energy emitted from the generator unit. An electrical compressor is in electrical communication with the generator unit and is used to consume the electrical energy leaving the generator unit.
外部補助周波数変調設備調整計画は、バッテリーから電力網に出力したり入力したりする電気量の調整、電気ボイラーの電力消費負荷の調整、電気コンプレッサーの電力消費負荷の調整、電解水素製造槽の電力消費負荷の調整の１種又は複数種の組合せを含む。
図５は、本発明が提供する電力網に周波数変調を行うシステムの第２実施例のモジュール説明図である。
The external auxiliary frequency modulation facility adjustment plan adjusts the amount of electricity output from the battery to the power grid, adjusts the power consumption load of the electric boiler, adjusts the power consumption load of the electric compressor, and consumes the power of the electrolytic hydrogen production tank Includes one or more combinations of load adjustments.
FIG. 5 is a module diagram of a second embodiment of a system for performing frequency modulation on a power grid provided by the present invention.
図５のように、本実施例では、電力網に周波数変調を行うシステムは、取得モジュール、パラメータ設定モジュール、発電負荷調整モジュール、偏差計算モジュール、判断モジュールと調整計画選択モジュールを含む。
ここで、取得モジュールは需要電力負荷データを受ける。
As shown in FIG. 5, in this embodiment, a system for performing frequency modulation on a power network includes an acquisition module, a parameter setting module, a power generation load adjustment module, a deviation calculation module, a determination module, and an adjustment plan selection module.
Here, the acquisition module receives demand power load data.
パラメータ設定モジュールは、需要電力負荷データに基づいて発電負荷の調整可能な速度について上限値と下限値を設定し、そして設定した上限値と下限値を偏差計算モジュールに送信する。 The parameter setting module sets the upper limit and the lower limit for the adjustable speed of the generated load based on the demand power load data, and transmits the set upper limit and the lower limit to the deviation calculation module.
発電負荷調整モジュールが一次周波数変調指令を受け取った場合、発電機ユニットの回転数によって発電の負荷を調整し、そして調整後の発電負荷を偏差計算モジュールに送信する。 When the power generation load adjustment module receives the primary frequency modulation command, the power generation load is adjusted by the number of revolutions of the generator unit, and the adjusted power generation load is transmitted to the deviation calculation module.
偏差計算モジュールは、発電負荷の調整可能な速度の上限値と下限値、及び発電機ユニットの回転数の調整後の発電負荷によって、現在の電力網の発電所に対する需要電力負荷データと発電所のリアルタイムの発電量との偏差を計算する。 Deviation calculation module, according to the upper and lower limits of the adjustable speed of the generation load, and the generated load after adjustment of the generator unit speed, the demand power load data for the current power plant and the real time of the power plant Calculate the deviation from the power generation amount of
判断モジュールは、偏差が所定の偏差に等しいか否かを判断する。偏差は所定の偏差値に等しくない場合、発電所に発電負荷の調整を必要とすることを判定し、そして調整計画選択モジュールに選択開始指令を送信する。
調整計画選択モジュールは、偏差と所定の偏差値の比較結果によって、発電負荷の調整計画を選択し、そして選択した調整計画をパワー調節器に送信する。
The determination module determines whether the deviation is equal to a predetermined deviation. If the deviation is not equal to the predetermined deviation value, it is determined that the power plant needs the adjustment of the generation load, and a selection start command is sent to the adjustment plan selection module.
The adjustment plan selection module selects a generation load adjustment plan according to the comparison result of the deviation and the predetermined deviation value, and transmits the selected adjustment plan to the power regulator.
このステップでは、偏差と所定の偏差値の比較結果によって発電負荷の調整計画を選択することは、偏差が所定の偏差範囲より小さい場合、バッテリーの充放電や電極型ボイラー、電気圧縮冷凍ユニットや電解水素製造槽の電力消費負荷変化を調整して発電負荷の偏差に応答し、且つ蒸気タービンとボイラーの負荷が不変なことを維持することを含む外部補助周波数変調設備調整計画を選択することと、偏差が所定の偏差範囲より大きい場合、優先的に外部補助周波数変調設備調整計画を選択するが、外部補助周波数変調設備調整計画が負荷偏差の調整の必要を満たすことができない場合、前記負荷偏差の調整の必要を満たすように、発電ユニット調整計画を追加すること、を含む。 In this step, selecting the adjustment plan of the power generation load based on the comparison result of the deviation and the predetermined deviation value means that if the deviation is smaller than the predetermined deviation range, charging / discharging of the battery, electrode type boiler, electric compression refrigeration unit or electrolysis Selecting an external auxiliary frequency modulation facility conditioning plan that includes adjusting the power consumption load changes of the hydrogen production tank to respond to power generation load deviations, and maintaining the steam turbine and boiler loads unchanged. If the deviation is larger than the predetermined deviation range, the external auxiliary frequency modulation equipment adjustment plan is preferentially selected, but if the external auxiliary frequency modulation equipment adjustment plan can not meet the need for adjustment of the load deviation, the load deviation Including adding a generation unit adjustment plan to meet the need for adjustment.
前記発電機ユニットの調整計画は、蒸気タービンの蒸気吸入量の調整、ボイラーの燃料供給量の調整、通風量の調整、給水量の調節、熱供給の蒸気抜き量の調整、蒸気タービンのバイパス流量の調整の１種又は複数種の組合せを採用する。ここで、ボイラーの燃料供給量の調整は、石炭粉砕機の駆動装置の駆動力の調整を含む。通風量の調整は、一次ファン及び／又は二次ファンの回転数を制御してバリア板の開度を調整することを含む。給水量の調節は、給水ポンプの周波数変換器の回転数と給水ポンプの再循環流量の調整を含む。 The adjustment plan of the generator unit is adjustment of steam intake of steam turbine, adjustment of fuel supply of boiler, adjustment of ventilation, adjustment of water supply, adjustment of steam supply of heat supply, bypass flow of steam turbine A combination of one or more of the adjustments of Here, the adjustment of the fuel supply amount of the boiler includes the adjustment of the driving force of the drive device of the coal crusher. The adjustment of the air flow rate includes controlling the rotational speed of the primary fan and / or the secondary fan to adjust the opening degree of the barrier plate. The adjustment of the water supply amount includes the adjustment of the number of rotations of the frequency converter of the water supply pump and the recirculation flow rate of the water supply pump.
外部補助周波数変調設備は、バッテリー、電気ボイラー、電解水素製造設備、電気コンプレッサーを含む。ここで、バッテリーは、それぞれ発電機ユニットと電力網とに電気的に接続しており、発電機ユニットから出た電気エネルギーの貯蔵に用いられ、また電力網に電気エネルギーを送り込むことに用いられる。電気ボイラーは、発電機ユニットと電気的に接続しており、発電機ユニットから出た電気エネルギーの消費に用いられる。電解水素製造設備は、発電機ユニットと電気的に接続しており、発電機ユニットから出た電気エネルギーの消費に用いられる。電気コンプレッサーは、発電機ユニットと電気的に接続しており、発電機ユニットから出た電気エネルギーの消費に用いられる。 The external auxiliary frequency modulation equipment includes a battery, an electric boiler, an electrolytic hydrogen production equipment, and an electric compressor. Here, the batteries are respectively electrically connected to the generator unit and the power grid, used for storing the electrical energy emitted from the generator unit, and also used for sending the electrical energy to the power grid. An electric boiler is in electrical communication with the generator unit and is used to consume the electrical energy leaving the generator unit. The electrolytic hydrogen production facility is electrically connected to the generator unit and is used to consume the electrical energy emitted from the generator unit. An electrical compressor is in electrical communication with the generator unit and is used to consume the electrical energy leaving the generator unit.
外部補助周波数変調設備調整計画は、バッテリーから電力網に出力したり入力したりする電気量の調整、電気ボイラーの電力消費負荷の調整、電気コンプレッサーの電力消費負荷の調整、電解水素製造槽の電力消費負荷の調整の１種又は複数種の組合せを含む。
図６は、本発明が提供するコンピュータ設備のハードウエアの構造説明図である。
The external auxiliary frequency modulation facility adjustment plan adjusts the amount of electricity output from the battery to the power grid, adjusts the power consumption load of the electric boiler, adjusts the power consumption load of the electric compressor, and consumes the power of the electrolytic hydrogen production tank Includes one or more combinations of load adjustments.
FIG. 6 is a structural explanatory view of hardware of computer equipment provided by the present invention.
図６のように、本発明の実施例では、記憶装置、プロセッサー及び前記記憶装置に記憶されて前記プロセッサーで運用できるコンピュータのプログラムを含んでおり、プロセッサーが前記プログラムを実行する時に前記電力網に周波数変調を行う方法のステップを実現するコンピュータの設備を提供する。 As shown in FIG. 6, the embodiment of the present invention includes a storage device, a processor, and a computer program stored in the storage device that can be operated by the processor, and when the processor executes the program Provided is a computer facility for implementing the steps of the method of performing modulation.
本分野の技術者は、図６に示されるコンピュータ設備の構造が本発明の実施例に対する限定を決して構成しないが、それは総括的な線形構造でもよいし、星型の構造でもよく、更に図の説明より多い又は少ない部品や、いくつかの部品の組み合わせ、あるいは異なる部品の配置を含むと理解することができる。 Those skilled in the art will appreciate that although the construction of the computer equipment shown in FIG. 6 in no way constitutes a limitation on the embodiments of the present invention, it may be a general linear construction or a star-shaped construction, and that It can be understood to include more or less parts than the description, a combination of several parts, or an arrangement of different parts.
プロセッサーは集積回路（Ｉｎｔｅｇｒａｔｅｄ Ｃｉｒｃｕｉｔ、ＩＣと略称する）から構成できるが、例えば単一のパッケージング化ＩＣから構成できるし、いくつかの同一の機能や異なる機能を備えるパッケージング化ＩＣを接続して構成できる。例を挙げると、プロセッサーは中央演算処理装置（Ｃｅｎｔｒａｌ Ｐｒｏｃｅｓｓｉｎｇ Ｕｎｉｔ、ＣＰＵと略称する）のみを含むことができるし、ＣＰＵ、デジタル・シグナル・プロセッサー（ｄｉｇｉｔａｌ ｓｉｇｎａｌ ｐｒｏｃｅｓｓｏｒ、ＤＳＰと略称する）、グラフィックス・プロセッシング・ユニット（Ｇｒａｐｈｉｃ Ｐｒｏｃｅｓｓｉｎｇ Ｕｎｉｔ、ＧＰＵと略称する）と各種類の制御チップの組合せでもよい。本発明の実施例では、ＣＰＵは単一演算コアでもよいし、多演算コアを含むこともできる。 The processor can be composed of integrated circuits (abbreviated as IC), but can be composed of, for example, a single packaged IC, and connect packaged ICs having several identical or different functions. It can be configured. For example, the processor may include only a central processing unit (CPU), a CPU, a digital signal processor (DSP), graphics and graphics. It may be a combination of a processing unit (Graphic Processing Unit, abbreviated as GPU) and each type of control chip. In embodiments of the present invention, the CPU may be a single operation core or may include multiple operation cores.
記憶装置は、非一時的記録媒体として、非一時的ソフトウェアプログラム、非一時的コンピュータ実行プログラム及びモジュール、例えば、本出願の実施例におけるシステムに対応するプログラムモジュール（例えば、図５に示される取得モジュール、パラメータ設定モジュール、偏差計算モジュール、判断モジュールと計画調整選択モジュール）を記憶する。プロセッサーは記憶装置に記憶されている非一時的ソフトウェアのプログラムとモジュールを運転することによって、サーバーの各種類の機能アプリケーションとデータ処理を実行することで、上記の電力網に周波数変調を行う方法の実施例の処理方法を実現するようになる。 The storage device is a non-temporary recording medium, a non-temporary software program, a non-temporary computer-executable program and module, for example, a program module corresponding to the system in the embodiment of the present application (for example, an acquisition module shown in FIG. , Parameter setting module, deviation calculation module, determination module and plan adjustment selection module). The processor executes the non-transitory software programs and modules stored in the storage device to perform the frequency modulation on the above power grid by executing each type of functional application of the server and data processing. It comes to realize the processing method of the example.
記憶装置は、プログラム記憶エリアとデータ記憶エリアを含んでおり、ここで、プログラム記憶エリアは、オペレーティングシステム、少なくとも１つの機能に必要なアプリケーションを記憶することができる。本発明の実施例では、オペレーティングシステムは、ｌｉｎｕｘシステム、Ａｎｄｒｏｉｄシステム、ｉＯＳシステムやＷｉｎｄｏｗｓオペレーティングシステムなどでもよい。データ記憶エリアは、電力網に周波数変調を行うシステムの利用に基づき作成されるデータなどを記憶することができる。また、記憶装置は高速ランダムアクセスメモリを含むことができるが、更に非一時的記憶装置、例えば、少なくとも１つのディスク・メモリー素子、フラッシュメモリ素子や、その他の非一時的ソリッドステート素子を含むことができる。一部の実施例では、記憶装置は、オプションとしてプロセッサーに長距離に設定する記憶装置を含むことができる。上記のネットワークの実施例は、インターネット、企業のイントラネット、ＬＡＮ、移動通信ネットとその組合せを含むが、それに限らない。 The storage device comprises a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function. In the embodiments of the present invention, the operating system may be a linux system, an Android system, an iOS system, a Windows operating system, or the like. The data storage area can store, for example, data created based on utilization of a system that performs frequency modulation in a power grid. Also, the storage device may include high-speed random access memory, but may further include non-transitory storage devices, such as at least one disk memory device, flash memory device, and other non-transient solid state devices. it can. In some embodiments, the storage device can optionally include storage devices that set the processor to a long distance. Examples of networks described above include, but are not limited to, the Internet, corporate intranets, LANs, mobile communication networks and combinations thereof.
本実施例では、発電ユニットと外部補助周波数変調設備は、電力網の周波数変調要求を満たすように、ユニットの負荷の高速増減に関与するが、電力網の周波数変調がユニットに高速に負荷を増加することを求める場合、蒸気タービンの蒸気吸入量の増加、バッテリーの放電、電気ボイラー、電気圧縮冷凍ユニットや電解水素製造槽の電力消費負荷の減少によって実現する。電力網の周波数変調がユニットに高速に負荷を減少することを求める場合、蒸気タービンの蒸気吸入量の減少、バッテリーの充電、電気ボイラー、電気圧縮冷凍ユニットや電解水素製造槽の電力消費負荷の増加によって実現する。 In this example, although the power generation unit and the external auxiliary frequency modulation equipment are involved in the fast increase and decrease of the load of the unit to meet the frequency modulation requirement of the power network, the frequency modulation of the power network increases the load to the unit at high speed. When seeking, increase in the amount of steam intake of the steam turbine, discharge of battery, and reduction of power consumption load of electric boiler, electric compression refrigeration unit and electrolytic hydrogen production tank. If the frequency modulation of the power grid requires the unit to reduce the load quickly, by reducing the steam intake of the steam turbine, charging the battery, increasing the power consumption load of the electric boiler, electric compression refrigeration unit and electrolytic hydrogen production tank To realize.
本発明は、外部補助周波数変調設備の追加によって、パラメータ対応の高速で安定的な取得を高め、同時にＤＣＳ制御論理でプライオリティも設定して、発電所の内外部補助ピーク調整と周波数変調設備に精確な負荷調整を行うように制御するが、負荷（速度）の調節が比較的大きい場合、ＤＣＳの有する調整制御システムを利用して、ユニットの主要設備と補助設備によって負荷の調整を行う。ユニットの負荷容量の調整が比較的小さい場合、バッテリー、電気ボイラー、電気コンプレッサーや電解水素製造槽の電力消費を利用して負荷低減、ピーク調整と周波数変調を行って、主要設備と補助設備の調節頻度を減らして、ユニットの安定的な運転を確保して、また、ユニット調節の速度と質も満たすことができる。 The present invention enhances parameter-accurate, fast and stable acquisition by adding external auxiliary frequency modulation equipment, while at the same time setting priorities with DCS control logic to ensure accurate internal and external auxiliary peak adjustment and frequency modulation equipment of the power plant. If the load (speed) adjustment is relatively large, the DCS's adjustment control system is used to adjust the load with the main equipment and auxiliary equipment of the unit. When the adjustment of the load capacity of the unit is relatively small, use the power consumption of the battery, electric boiler, electric compressor or electrolytic hydrogen production tank to reduce the load, adjust the peak adjustment and frequency modulation, and adjust the main facilities and auxiliary facilities The frequency can be reduced to ensure stable operation of the unit and also to meet the speed and quality of unit adjustment.
特に注意すべきことは、ユニットで一次周波数変調とＡＧＣの機能を投入する時に、ＡＧＣの負荷指令変化方向と一次周波数変調要求の負荷指令変化方向が一致しないことがよく現れることである。出力の調節は、一次周波数変調の正しい動作に対する審査がＡＧＣの調節精度と速度に対する審査より厳しいので、ＡＧＣの負荷指令変化方向と一次周波数変調要求の負荷指令変化方向が一致しない場合、ＡＧＣ命令の調節を制限して、優先的に一次周波数変調の制御の必要を満たすものとする。周波数変調パワー曲線を修正して、周波数の差が不感帯の比較的小さい範囲を超える場合、周波数変調パワー曲線が初期に比較的に急になるように、適切に周波数変調パワーの増分を増加する。周波数の差の小さい変動を高める場合、一次周波数変調の動作の幅が、ＡＧＣの調節に「埋没」されないように、一次周波数変調の正しい動作率を高める。 It should be particularly noted that when the unit performs primary frequency modulation and AGC functions, it often appears that the load command change direction of the AGC and the load command change direction of the primary frequency modulation request do not match. Since the adjustment of output is stricter than the examination for the adjustment accuracy and speed of AGC, the examination for the correct operation of the primary frequency modulation is performed. Therefore, when the load instruction change direction of AGC and the load instruction change direction of the primary frequency modulation request do not match The adjustment should be limited to preferentially fulfill the need for control of the primary frequency modulation. The frequency modulation power curve is modified to appropriately increase the frequency modulation power increment so that the frequency modulation power curve is relatively sharp initially when the frequency difference exceeds the relatively small range of the dead band. If small variations in frequency differences are to be enhanced, then the breadth of operation of the primary frequency modulation will increase the correct performance of the primary frequency modulation so that it is not "embedded" in the adjustment of the AGC.
同時に、もとの一次周波数変調は、完全にユニットの速度調節ＤＥＨシステムに頼って周波数変調の必要を満たすことを変えて、それに代わって高速な対応特性を有する高速充放電のバッテリーや、高速に負荷を増減できる電極型ボイラー、電解水素製造槽などの外部設備を利用して一次周波数変調の必要を満たし、それによってユニットの蒸気タービン速度調節システムの動作の幅と回数に減少して、ユニットをできるだけ長時間安定的な負荷で運転させて、三大主要機械の使用寿命を延長する。外部補助周波数変調設備が一次周波数変調に関与することによって、バルブ調節動作、蒸気抜き量の調節やオンオフ、凝結水の絞りなどの運転難度が比較的高く、ユニットの寿命や安全な運転に対してマイナスの影響を与えるユニットの一次周波数変調措置を避けることができる。 At the same time, the original primary frequency modulation completely changes the unit's speed adjustment DEH system to meet the need of frequency modulation, instead it has high speed charge and discharge batteries with high speed response characteristics, high speed Meet the need for primary frequency modulation using external equipment such as electrode boilers, which can increase or decrease the load, electrolytic hydrogen production tank, thereby reducing the unit to the width and number of operations of the steam turbine speed control system of the unit, Operate with stable load for as long as possible to extend the service life of the three major machines. As the external auxiliary frequency modulation equipment participates in primary frequency modulation, it is relatively difficult to operate such as valve adjustment operation, adjustment and removal of steam removal amount, condensation water throttling, etc., and the unit life and safe operation. It is possible to avoid primary frequency modulation measures of units which have a negative impact.
同時に重要なメーターと信号チャンネルの較正を保証して、信号が同じソースから生まれるので、ＡＧＣ制御用パワーの信号とネットワークでの審査用パワーの信号が同一のソースから生まれるようにして、同時にメーターから信号のチャンネルまで精確な較正、検定を行って、信号が正確に電力網に送られることを保証して、最大限度で信号の精度による誤差を減少させる。
演算後の制御論理によって、外部補助ピーク調整と周波数変調設備に精確な負荷調整制御を行う。
At the same time, calibration of the important meter and signal channel is guaranteed, and the signal comes from the same source, so that the signal of AGC control power and the signal of examination power in the network come from the same source simultaneously Accurate calibration and verification down to the channel of the signal is performed to ensure that the signal is accurately delivered to the power grid, reducing the error due to the accuracy of the signal to the fullest extent.
Accurate load adjustment control is performed on external auxiliary peak adjustment and frequency modulation equipment by the control logic after calculation.
本発明の上記の具体的な実施例は、例示的な説明や本発明の原理の説明や釈明に用いられ、本発明に対する制限を構成しないことを理解すべきである。そのため、本発明の範囲を逸脱しない上で、いかなる修正、代替、改善などは、全て本発明の特許請求の範囲に含まれるべきである。また、本発明に添付された請求項は、特許請求の範囲と制限、あるいはこのような範囲と制限と同一の形式内のすべての変化と修正例をカバーすることを目指すものである。 It is to be understood that the above specific embodiments of the present invention are used for illustrative purposes and explanations or explanations of the principle of the present invention, and do not constitute a limitation on the present invention. Therefore, any modification, substitution, improvement, etc. should be included in the claims of the present invention without departing from the scope of the present invention. Also, the claims attached to the present invention aim to cover all changes and modifications within the same form as the claims and limitations or such ranges and limitations.
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| CN103713613B (en) * | 2014-01-02 | 2017-01-18 | 国家电网公司 | Method for achieving optimizing control of load of thermal power generating unit in PROPR mode |
| CN105896569A (en) * | 2016-04-12 | 2016-08-24 | 国网上海市电力公司 | Supercritical unit CCS side primary frequency modulation method |
| CN107370156B (en) * | 2017-08-24 | 2020-09-01 | 赫普科技发展（北京）有限公司 | Power grid frequency modulation system based on electrode boiler |
| CN107465371B (en) * | 2017-08-31 | 2019-09-10 | 国网山东省电力公司电力科学研究院 | Generating set primary frequency regulation self-tuing on line controller, control system and method |
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Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20200121 |