Control strategy optimization of primary frequency regulation for ultra supercritical units

YANG Juntong1; WU Zegang2 1.Anhui Electric Power Research Institute

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Control strategy optimization of primary frequency regulation for ultra supercritical units

更新时间：2025-09-28

- Control strategy optimization of primary frequency regulation for ultra supercritical units
- Thermal Power Generation Vol. 42, Issue 5, Pages: 83-85(2013)
- 作者机构：
  
  1. 安徽省电力科学研究院
  2. 安徽池州九华发电有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM76
- Published：2013
- 稿件说明：
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YANG Juntong1, WU Zegang2 1.Anhui Electric Power Research Institute. Control strategy optimization of primary frequency regulation for ultra supercritical units[J]. Thermal power generation, 2013, 42(5): 83-85.
DOI：

YANG Juntong1, WU Zegang2 1.Anhui Electric Power Research Institute. Control strategy optimization of primary frequency regulation for ultra supercritical units[J]. Thermal power generation, 2013, 42(5): 83-85. DOI：

摘要

针对原机组的一次调频控制策略

设计了基于数字式电液控制系统(DEH)的一次调频控制策略

采用电网频率取代汽轮机转速参与一次调频控制;利用DEH扫描周期速度快的特点

在DEH中组态一次调频功率控制、一次调频阀位控制值设定和机组协调控制(UCC)的一次调频功率控制等逻辑;在UCC组态中一次调频功率控制逻辑

直接从DEH向UCC传输调频功率

以便快速获得电网频率偏差值

从而快速调频;根据超临界机组直流锅炉蓄热小的特点

将调频功率加入锅炉负荷指令的静、动态前馈控制中

以保证一次调频的快速性、有效性、安全性以及长期稳定性。

Abstract

Against the original primary frequency regulation control logic

a digital electro-hydraulic(DEH) control system based new strategy was designed.In this control strategy

the power system frequency replaced the turbine speed and participated in the primary frequency control.The fast DEH scan cycle characteristics was employed to configure control logic of the primary frequency regulation power

primary frequency regulation valve and primary frequency regulation power control logic of the unit coordinated control(UCC).Moreover

the primary frequency power control logic of the UCC side was configured.The frequency regulation power was directly transferred from DEH to UCC to obtain the power system frequency deviation rapidly

thus to adjusting the frequency quickly.Besides

according to the low heat storage characteristic of once through boiler in supercritical unit

to ensure the speedability

effectiveness

safety and long-term stability of the primary frequency regulation

the frequency regulation power was added into the static and dynamic feedforward control of boiler load.

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