电力系统自动化
電力繫統自動化
전력계통자동화
AUTOMATION OF ELECTRIC POWER SYSTEMS
2009年
23期
5-8,97
,共5页
沈智健%熊小伏%周家启%赵渊%卢继平
瀋智健%熊小伏%週傢啟%趙淵%盧繼平
침지건%웅소복%주가계%조연%로계평
继电保护%拒动概率%误动概率%停运%运行可靠性
繼電保護%拒動概率%誤動概率%停運%運行可靠性
계전보호%거동개솔%오동개솔%정운%운행가고성
relay protection%anti-operation probability%mal-operation probability%outage%operational reliability
计算继电保护系统的失效概率和量化其对一次元件实时停运的影响是电网运行可靠性评估的重要研究内容.所提出的继电保护系统可靠性模型能够反映其保护原理、配置情况和配合关系.一方面,保护硬件故障引起的失效被称为一类失效,利用统计数据可计算其概率;另一方面,如果继电保护系统的设置不适应目前电网运行状态,将产生隐蔽性故障,被称为二类失效.因此,提出保护功能模块的不动作概率用来反映一次系统故障类型和保护原理的影响,并基于不动作概率计算二类失效概率.最后,考虑继电保护系统失效的影响,推导出一次系统元件停运概率的计算式.
計算繼電保護繫統的失效概率和量化其對一次元件實時停運的影響是電網運行可靠性評估的重要研究內容.所提齣的繼電保護繫統可靠性模型能夠反映其保護原理、配置情況和配閤關繫.一方麵,保護硬件故障引起的失效被稱為一類失效,利用統計數據可計算其概率;另一方麵,如果繼電保護繫統的設置不適應目前電網運行狀態,將產生隱蔽性故障,被稱為二類失效.因此,提齣保護功能模塊的不動作概率用來反映一次繫統故障類型和保護原理的影響,併基于不動作概率計算二類失效概率.最後,攷慮繼電保護繫統失效的影響,推導齣一次繫統元件停運概率的計算式.
계산계전보호계통적실효개솔화양화기대일차원건실시정운적영향시전망운행가고성평고적중요연구내용.소제출적계전보호계통가고성모형능구반영기보호원리、배치정황화배합관계.일방면,보호경건고장인기적실효피칭위일류실효,이용통계수거가계산기개솔;령일방면,여과계전보호계통적설치불괄응목전전망운행상태,장산생은폐성고장,피칭위이류실효.인차,제출보호공능모괴적불동작개솔용래반영일차계통고장류형화보호원리적영향,병기우불동작개솔계산이류실효개솔.최후,고필계전보호계통실효적영향,추도출일차계통원건정운개솔적계산식.
It is an important research content of operational reliability evaluation for the power system to calculate the failure probability of the relay protection system and quantify its impact on the outage of the primary component. A reliability model for the relay protection system is proposed to represent its principle, configuration and cooperation with other models. On the one hand, the so-called first-type failure is due to hardware failure, and its probability is calculated according to statistics. On the other, the hidden failure called the second-type failure will occur should the setting of the relay protection system not suit the power system operation. For this reason, the inactivity probability of the protection module is proposed to represent the effect of the power system fault type and protection principle, through which the second-type failure probability is calculated. Finally, the outage probability formulae of the primary component are derived with the relay protection system failure taken into account.