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基本信息:
- 专利标题: 一种并网状态下逆变器非线性自适应PQ控制方法
- 专利标题(英):Nonlinear adaptive PQ control method of inverter in grid-connected state
- 申请号:CN201711354054.8 申请日:2017-12-15
- 公开(公告)号:CN107947238A 公开(公告)日:2018-04-20
- 发明人: 项基 , 杨振铨 , 余杰 , 顾一丰 , 沈祥 , 朱亚萍 , 钱一宏 , 朱权
- 申请人: 浙江大学 , 国网浙江省电力公司绍兴供电公司 , 国网浙江绍兴市上虞区供电公司
- 申请人地址: 浙江省杭州市西湖区余杭塘路866号
- 专利权人: 浙江大学,国网浙江省电力公司绍兴供电公司,国网浙江绍兴市上虞区供电公司
- 当前专利权人: 浙江大学,国网浙江省电力公司绍兴供电公司,国网浙江绍兴市上虞区供电公司
- 当前专利权人地址: 浙江省杭州市西湖区余杭塘路866号
- 代理机构: 杭州天勤知识产权代理有限公司
- 代理人: 徐敏
- 主分类号: H02J3/38
- IPC分类号: H02J3/38 ; H02J3/24
The invention discloses a nonlinear adaptive PQ control method of an inverter in a grid-connected state, comprising the following steps: (1) collecting the three-phase output voltage vabc and the output current iabc of the LCL output port; (2) according to the output voltage and current obtained in the step (1) to calculate the active power P and reactive power Q output from the inverter; (3) calculating the d-axis component v<*>[d] of the modulation voltage; (4) calculating the q-axis component v<*>[q] of the modulation voltage; (5) adjusting the parameters in the step (3) and the step (4) through the adaptive control scale function; and (6) subjecting the v<*>[d] and v<*>[q] obtained in the step (3) to dq0/abc transform to generate a PWM modulation wave, wherein the PWM modulation wave is input to the PWM wave generator to generate the PWM control signal for controlling the inverter. The method of the present invention not only does not require complex multi-parameter tuning, but also can set the control accuracy and is simple and efficient.
公开/授权文献:
- CN107947238B 一种并网状态下逆变器非线性自适应PQ控制方法 公开/授权日:2019-09-20
IPC结构图谱:
H | 电学 |
--H02 | 发电、变电或配电 |
----H02J | 供电或配电的电路装置或系统;电能存储系统 |
------H02J3/00 | 交流干线或交流配电网络的电路装置 |
--------H02J3/38 | .由两个或两个以上发电机、变换器或变压器对1个网络并联馈电的装置 |