CAJ | 학술논문

热电联产机组“以热定电”运行所导致的调峰能力不足是目前造成中国“三北”电网大量弃风的一个重要原因，为此，提出了在中国大型抽汽式热电厂中通过配置储热来提高机组调峰能力的消纳方案。首先介绍了该方案的基本原理；进而对配置储热前、后热电机组的电热运行外特性进行了分析与建模，讨论了配置储热后热电机组的运行策略；在此基础上，建立了计算配置储热后热电机组调峰能力的数学模型，并分析了其影响因素。算例中对中国北方地区2台典型的300 MW 和200 MW供暖机组配置储热提高调峰能力的效果进行了分析，结果表明：在给定的供热中期的热负荷水平下，配置储热可使得2台机组的调峰容量分别提高额定容量的21%和13%，从而为弃风电力提供大量的上网空间；但储热的效果取决于机组所承担的热负荷水平，若热负荷接近于机组的最大供热能力，则效果并不明显。
열전련산궤조“이열정전”운행소도치적조봉능력불족시목전조성중국“삼북”전망대량기풍적일개중요원인，위차，제출료재중국대형추기식열전엄중통과배치저열래제고궤조조봉능력적소납방안。수선개소료해방안적기본원리；진이대배치저열전、후열전궤조적전열운행외특성진행료분석여건모，토론료배치저열후열전궤조적운행책략；재차기출상，건립료계산배치저열후열전궤조조봉능력적수학모형，병분석료기영향인소。산례중대중국북방지구2태전형적300 MW 화200 MW공난궤조배치저열제고조봉능력적효과진행료분석，결과표명：재급정적공열중기적열부하수평하，배치저열가사득2태궤조적조봉용량분별제고액정용량적21%화13%，종이위기풍전력제공대량적상망공간；단저열적효과취결우궤조소승담적열부하수평，약열부하접근우궤조적최대공열능력，칙효과병불명현。
Lack of the peak-load regulating capacity resulting from cogeneration units operating on the principle of“power determined by heat"is one of the most important causes of tremendous curtailments of wind power in the North power grid of China.For this reason,an accommodation scheme is proposed for wind power plants with large-scale extraction units to improve their peak-load regulating ability by configuration of stored heat.The principle of this scheme is described first,then the thermoelectric generating unit external characteristics with and without heat accumulators are analyzed and modeled,and the operation mechanism of cogeneration units with heat accumulators is discussed. On this basis, the corresponding mathematical model for calculating the peak-load regulation capacity of cogeneration units with heat accumulator is developed, and the influencing factors are analyzed.Finally,the effects on improving the peak-load regulating ability of 300 MW and 200 MW typical cogeneration units in North China by adding heat accumulators are analyzed,the example results showing that, at the heat load level in the given mid-heating period,the peak-load regulating capacity of 300 MW and 200 MW units could increase by 21% and 13% of their nominal capacity by adding heat accumulators respectively,providing massive room for curtailed wind power.But the effect depends on the heat load,which if close to the maximum heating ability of the units,does not exhibit appreciable effects.