分布式电网多能互补电源输出电压自动开关控制方法  

405 distributed power grid multi-energy complementary power supply output voltage automatic switch control method

作　　者：王倩倩 孙帅 旦增巴桑 廖晓群[2] WANG Qianqian;SUN Shuai;Danzeng Ba sang;LIAO Xiaoqun(Economic and Technological Research Institute of state grid Tibet Electric Power Co,Ltd,Lhasa 850000,China;Center of Information and Network,Xi'an University of Science arul Technology,Xi'an 710054,China)

机构地区：[1]国网西藏电力有限公司经济技术研究院,拉萨850000 [2]西安科技大学网络中心,西安710054

出　　处：《自动化与仪器仪表》2021年第2期244-247,共4页Automation & Instrumentation

基　　金：国网西藏电力有限公司科学技术项目“多能互补示范应用研究技术服务”(No.SGXZJY00JHJS2000008)。

摘　　要：基于分层控制的输出电压自动开关控制方法与基于极值优化的输出电压自动开关控制方法没有对电网多能互补电源输出电压状态进行诊断,出现控制后无功功率、有功功率到达稳态时间长的问题,导致电源输出电压自动开关控制效果差,为此设计一种405分布式电网多能互补电源输出电压自动开关控制方法。对实时采集的电网输出电压数据进行简单的滑动平均处理,建立诊断函数判断输出电压状态,将电流分为开通期间与关断期间,确定电网多能互补电源输出电压开关频率。以多能互补电源输出电压偏差最小作为目标函数,并制定加速因子,提高电源输出电压自动开关控制的响应速度,以此完成405分布式电网多能互补电源输出电压自动开关控制。将无功功率、有功功率到达稳态的时间作为对比指标,实验证明,此次设计的方法比传统两种方法控制后无功功率、有功功率到达稳态的时间短,证明此次设计的方法比传统两种方法的控制效果好。The output voltage automatic switching control method based on hierarchical control and the output voltage automatic switching control method based on extreme value optimization do not diagnose the output voltage state of the multi-energy complementary power supply of the power grid.After the control occurs,the reactive power and active power reach a steady state for a long time.The problem resulted in poor automatic switching control of the output voltage of the power supply.Therefore,an automatic switching control method for the output voltage of the 405 distributed power grid multi-energy complementary power supply was designed.Perform simple moving average processing on the grid output voltage data collected in real time,establish a diagnostic function to judge the status of the output voltage,divide the current into the on-period and off-period,and determine the output voltage switching frequency of the grid multi-energy complementary power supply.Taking the minimum deviation of the output voltage of the multi-energy complementary power supply as the objective function,and formulating an acceleration factor to improve the response speed of the automatic switch control of the output voltage of the power supply,in order to complete the automatic switching control of the output voltage of the 405 distributed power supply system.Taking the time for reactive power and active power to reach the steady state as a comparison index,the experiment proves that the method designed this time is shorter than the time for the reactive power and active power to reach the steady state after the traditional two methods are controlled,proving the method of this design The control effect is better than the traditional two methods.

关 键 词：分布式电网 多能互补 输出电压 自动开关控制 频率 状态诊断 

分 类 号：TM615[电气工程—电力系统及自动化]