电力系统保护与控制
電力繫統保護與控製
전력계통보호여공제
POWER SYSTM PROTECTION AND CONTROL
2014年
3期
88-93
,共6页
李明%郭志红%韩学山%逯遥
李明%郭誌紅%韓學山%逯遙
리명%곽지홍%한학산%록요
电网%输电元件%运行风险%停运概率%风险决策
電網%輸電元件%運行風險%停運概率%風險決策
전망%수전원건%운행풍험%정운개솔%풍험결책
power grid%transmission component%operation risk%outage probability%risk-based decision-making
在电网优化调度与控制决策过程中,其运行的经济性与可靠性往往存在着不一致。为统筹二者之间的关系,构建了计及输电元件实时运行态势的电网运行风险决策模型。该模型从风险的角度,以电网期望运行净收益最大化为目标,以机组出力、电网节点失负荷量为决策量,在满足所有预想事故发生前后状态对应约束集下实现模型求解。该模型将电网运行风险评估理论与电网运行决策进行融合,丰富和发展了电网运行风险决策理论。通过算例分析验证,论证了所提模型的合理性和有效性。
在電網優化調度與控製決策過程中,其運行的經濟性與可靠性往往存在著不一緻。為統籌二者之間的關繫,構建瞭計及輸電元件實時運行態勢的電網運行風險決策模型。該模型從風險的角度,以電網期望運行淨收益最大化為目標,以機組齣力、電網節點失負荷量為決策量,在滿足所有預想事故髮生前後狀態對應約束集下實現模型求解。該模型將電網運行風險評估理論與電網運行決策進行融閤,豐富和髮展瞭電網運行風險決策理論。通過算例分析驗證,論證瞭所提模型的閤理性和有效性。
재전망우화조도여공제결책과정중,기운행적경제성여가고성왕왕존재착불일치。위통주이자지간적관계,구건료계급수전원건실시운행태세적전망운행풍험결책모형。해모형종풍험적각도,이전망기망운행정수익최대화위목표,이궤조출력、전망절점실부하량위결책량,재만족소유예상사고발생전후상태대응약속집하실현모형구해。해모형장전망운행풍험평고이론여전망운행결책진행융합,봉부화발전료전망운행풍험결책이론。통과산례분석험증,론증료소제모형적합이성화유효성。
There is inconsistency between the economy and reliability of power grid operation during power grid optimal dispatch and control decision-making. In order to co-ordinate the inconsistency, a risk decision model is constructed taking into account the real-time power grid operation. The model is based on the concept of risk. The goal is expectation maximization for load revenue. The amounts of decision making are the generating capacity and load cut. The constraints include state constraints before and after the incident or coupling between these incidents. The model combines power grid risk assessment theory with power grid decision theory, enriches and develops the power grid risk decision-making theory. Finally, a numeral case is proposed to prove the validity and feasibility of the model.