For long-run plan, the validity of generalized OKA is analyzed.Branch and Bound is trapped at high load level but can recover by forcing some unit down and out.

• 对于长期运行计划安排，分析了广义OKA算法的有效性，但重负荷时由于分支定界效能下降算法整体速度缓慢，如果对部分机组作强制投入或关停处理则可恢复算法效能。